Data Sheet May 4, 2012 TM 12V Mega TLynx : Non-Isolated DC-DC Power Modules: 6.0Vdc – 14Vdc input; 0.8 to 3.63Vdc Output; 30A Output Current Features  Compliant to RoHS EU Directive 2002/95/EC (-Z versions)  Compliant to ROHS EU Directive 2002/95/EC with lead solder exemption (non-Z versions)  Compliant to IPC-9592 (September 2008), Category 2, Class II  Delivers up to 30A of output current  High efficiency: 92.9% @ 3.3V full load (VIN=12Vdc)  Input voltage range from 6 to 14Vdc • Output voltage programmable from 0.8 to 3.63Vdc RoHS Compliant  Small size and low profile: 33.0 mm x 13.46 mm x 10.00 mm Applications (1.30 in. x 0.53 in. x 0.39 in.)  Distributed power architectures  Monotonic start-up  Intermediate bus voltage applications  Startup into pre-biased output  Telecommunications equipment TM  Output voltage sequencing (EZ-SEQUENCE )  Servers and storage applications  Remote On/Off  Networking equipment  Remote Sense  Over current and Over temperature protection  Option- Parallel operation with active current Vin+ Vout+ VIN VOUT sharing SENSE  Wide operating temperature range (-40°C to RTUNE 85°C) MODULE †  UL* 60950 Recognized, CSA C22.2 No. ‡ Cin Co 60950-00 Certified, and VDE 0805 (EN60950-1 CTUNE rd 3 edition) Licensed ON/OFF TRIM  ISO** 9001 and ISO 14001 certified RTrim manufacturing facilities GND Description TM The 12V Mega TLynx power modules are non-isolated dc-dc converters that can deliver up to 30A of output current. These modules operate over a wide range of input voltage (V = 6Vdc-14Vdc) and provide a precisely IN regulated output voltage from 0.8Vdc to 3.63Vdc, programmable via an external resistor. Features include remote On/Off, adjustable output voltage, over current and over temperature protection, output voltage sequencing and TM paralleling with active current sharing (-P versions). A new feature, the Tunable Loop , allows the user to optimize the dynamic response of the converter to match the load with reduced amount of output capacitance leading to savings on cost and PWB area * UL is a registered trademark of Underwriters Laboratories, Inc. † CSA is a registered trademark of Canadian Standards Association. ‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V. ** ISO is a registered trademark of the International Organization of Standards Document No: DS09-003 ver. 1.13 PDF Name: APTS030A0X3_ds.pdf TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Device Symbol Min Max Unit Input Voltage Continuous All V -0.3 15 Vdc IN Sequencing pin voltage All VsEQ -0.3 15 Vdc Operating Ambient Temperature All T -40 85 °C A (see Thermal Considerations section) Storage Temperature All T -55 125 °C stg Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Device Symbol Min Typ Max Unit Operating Input Voltage All VIN 6.0 12 14 Vdc Maximum Input Current All I 19 Adc IN,max (V = V , V = V I =I) IN IN,min O O,set, O O, max 2 2 Inrush Transient All I t 1 A s Input No Load Current V = 0.8 Vdc I 91 mA O,set IN,No load (V = 12.0Vdc, I = 0, module enabled) V = 3.3Vdc I 265 mA IN O O,set IN,No load Input Stand-by Current All I 20 mA IN,stand-by (V = 12.0Vdc, module disabled) IN Input Reflected Ripple Current, peak-to- peak All 100 mAp-p (5Hz to 20MHz, 1μH source impedance; V =6.0V to 14.0V, I = I ; See Figure 1) IN O Omax Input Ripple Rejection (120Hz) All 50 dB LINEAGE POWER 2 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Output Voltage Set-point All V -1.5 ⎯ +1.5 % V O, set O, set (V =V , I =I , T=25°C) IN IN,nom O O, nom ref Output Voltage (Over all operating input voltage, resistive load, All V –3.0 ⎯ +3.0 % V O, set O, set and temperature conditions until end of life) Adjustment Range Selected by an external resistor All 0.8 3.63 Vdc Output Regulation Line (V =V to V) All ⎯ ⎯ 10 mV IN IN, min IN, max Load (I =I to I) All ⎯ ⎯ 10 mV O O, min O, max Temperature (T =T to T) All 0.5 1 % V ref A, min A, max ⎯ O, set Output Ripple and Noise on nominal output (V =V and I =I to I IN IN, nom O O, min O, max C = 0.1μF // 47 μF ceramic capacitors) OUT Peak-to-Peak (5Hz to 20MHz bandwidth) All 50 mV ⎯ pk-pk 1 External Capacitance TM Without the Tunable Loop ESR ≥ 1 mΩ All C 0 ⎯ 200 μF O, max TM With the Tunable Loop ESR ≥ 0.15 mΩ All C 0 ⎯ 1000 μF O, max ESR ≥ 10 mΩ All C 0 10000 μF O, max ⎯ Output Current (V = 6 to 14Vdc) All I 0 30 Adc IN o Output Current Limit Inception (Hiccup Mode) All IO, lim 140 % Iomax Output Short-Circuit Current All I 3.5 Adc O, s/c ⎯ ⎯ (V≤250mV) ( Hiccup Mode ) O 83.0 Efficiency VO,set = 0.8dc η % 87.1 V =12Vdc, T=25°C V = 1.2Vdc η % IN A O,set 90.1 I =I V = V V = 1.8Vdc η % O O, max , O O,set O,set 91.8 V = 2.5Vdc η % O,set 92.9 V = 3.3Vdc η % O,set Switching Frequency, Fixed All f ⎯ 300 ⎯ kHz sw General Specifications Parameter Min Typ Max Unit Calculated MTBF (V =12V, V =2.5Vdc, I = 0.8I , IN O O O, max 4,443,300 Hours T =40°C, 200LFM) Per Telcordia Issue 2 Method 1 Case 3 A Weight ⎯ 7.04 (0.248) ⎯ g (oz.) LINEAGE POWER 3 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter Device Symbol Min Typ Max Unit On/Off Signal Interface (V =V to V ; open collector or equivalent, IN IN, min IN, max Signal referenced to GND) Logic High (On/Off pin open – Module OFF) Input High Current All IIH 25 200 µA ⎯ Input High Voltage All VIH 3.0 ⎯ V V IN, max Logic Low (Module ON) Input Low Current All IIL 200 µA ⎯ ⎯ Input Low Voltage All VIL -0.3 ⎯ 1.2 V Turn-On Delay and Rise Times (V =V , I =I V to within ±1% of steady state) IN IN, nom O O, max , O Case 1: On/Off input is enabled and then All Tdelay ― 2.5 5 msec input power is applied (delay from instant at which V = V until Vo = 10% of Vo, set) IN IN, min All Tdelay ― 2.5 5 msec Case 2: Input power is applied for at least one second and then the On/Off input is enabled (delay from instant at which Von/Off is enabled until Vo = 10% of Vo, set) All Trise 2 10 msec Output voltage Rise time (time for Vo to rise from 10% of Vo, set to 90% of Vo, set) Output voltage overshoot 3.0 % V O, set o I = I ; V – V , T = 25 C O O, max IN, min IN, max A Remote Sense Range All ⎯ ⎯ 0.5 V Over temperature Protection All T 125 °C ref ⎯ ⎯ (See Thermal Consideration section) Sequencing Slew rate capability All dVSEQ/dt — 2 V/msec (V to V ; I to I VSEQ < Vo) IN, min IN, max O, min O, max Sequencing Delay time (Delay from V IN, min to application of voltage on SEQ pin) All TsEQ-delay 10 msec Tracking Accuracy Power-up (2V/ms) All VSEQ –Vo 100 200 mV Power-down (1V/ms) VSEQ –Vo 200 400 mV (V to V ; I - I VSEQ < Vo) IN, min IN, max O, min O, max Input Undervoltage Lockout Turn-on Threshold All 5.5 Vdc Turn-off Threshold All 5.0 Vdc Forced Load Share Accuracy -P ⎯ 10 % Io Number of units in Parallel -P 5 LINEAGE POWER 4 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Characteristic Curves o The following figures provide typical characteristics for the APTS030A0X3-SRPHZ at 0.8V out and 25 C. 35 95 1m/s (200LFM) 30 90 25 85 20 NC 15 80 0.5m/s Vin=12V (100LFM) 10 75 Vin=6V Vin=14V 5 70 0 0 5 10 15 20 25 30 35 45 55 65 75 85 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 4. Derating Output Current versus Ambient Figure 1. Converter Efficiency versus Output Current. Temperature and Airflow at 12V in. TIME, t (1μs/div) TIME, t (20μs /div) Figure 2. Typical output ripple and noise (VIN = 12V, Io = Figure 5. Transient Response to Dynamic Load 30A, C = 0.1μF // 47 μF ceramic capacitors ). Change from 0% to 50% to 0% with V =12V. OUT IN TIME, t (2ms/div) TIME, t (2ms/div) Figure 3. Typical Start-up Using On/Off Voltage (Io = Figure 6. Typical Start-up Using Input Voltage (VIN = Io,max). 14V, Io = Io,max). LINEAGE POWER 5 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE V (V) (200mV/div) V (V) (5V/div) EFFICIENCY, η (%) O ON/OFF V (V) (20mV/div) O OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE I (A) (5Adiv) V (V) (200mV/div) OUTPUT CURRENT, Io (A) O O V (V) (200mV/div) V (V) (5V/div) O IN TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Characteristic Curves o The following figures provide typical characteristics for the APTS030A0X3-SRPHZ at 1.2V out and 25 C. 95 35 30 90 25 85 20 NC 1m/s Vin=12V (200LFM) 15 80 0.5m/s Vin=6V (100LFM) Vin=14V 10 75 5 70 0 0 5 10 15 20 25 30 35 45 55 65 75 85 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 10. Output Current Derating versus Ambient Figure 7. Converter Efficiency versus Output Current. Temperature and Airflow at 12V in. TIME, t (1μs/div) TIME, t (20μs /div) Figure 8. Typical output ripple and noise (VIN = 12V, Io Figure 11. Transient Response to Dynamic Load = 30A, C = 0.1μF // 47 μF ceramic capacitors ). Change from 0% to 50% to 0% with V =12V. OUT IN TIME, t (2ms/div) TIME, t (2ms/div) Figure 9. Typical Start-up Using On/Off Voltage (Io = Figure 12. Typical Start-up Using Input Voltage (VIN = Io,max). 14V, Io = Io,max). LINEAGE POWER 6 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE EFFICIENCY, η (%) V (V) (500mV/div) V (V) (5V/div) O ON/OFF V (V) (20mV/div) O OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE I (A) (5Adiv) V (V) (200mV/div) OUTPUT CURRENT, Io (A) O O V (V) (500mV/div) V (V) (5V/div) O IN TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Characteristic Curves o The following figures provide typical characteristics for the APTS030A0X3-SRPHZ at 1.8V out and 25 C. 35 95 2m/s (400LFM) 30 90 25 NC 85 20 0.5m/s (100LFM) Vin=12V 1m/s 15 Vin=6V 80 Vin=14V (200LFM) 10 75 1.5m/s 5 (300LFM) 70 0 0 5 10 15 20 25 30 35 45 55 65 75 85 O AMBIENT TEMPERATURE, T C OUTPUT CURRENT, I (A) A O Figure 16. Output Current Derating versus Ambient Figure 13. Converter Efficiency versus Output Current. Temperature and Airflow at 12V in. TIME, t (20μs /div) TIME, t (1μs/div) Figure 14. Typical output ripple and noise (VIN = 12V, Io Figure 17. Transient Response to Dynamic Load = 30A, C = 0.1μF // 47 μF ceramic capacitors ). Change from 0% to 50% to 0% with V =12V. OUT IN TIME, t (2ms/div) TIME, t (2ms/div) Figure 15. Typical Start-up Using On/Off Voltage (Io = Figure 18. Typical Start-up Using Input Voltage (VIN = Io,max). 14V, Io = Io,max). LINEAGE POWER 7 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE V (V) (500mV/div) V (V) (5V/div) EFFICIENCY, η (%) O ON/OFF V (V) (20mV/div) O OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE I (A) (5Adiv) V (V) (200mV/div) OUTPUT CURRENT, Io (A) O O V (V) (500mV/div) V (V) (5V/div) O IN TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Characteristic Curves o The following figures provide typical characteristics for the APTS030A0X3-SRPHZ at 2.5V out and 25 C. 35 100 30 95 25 90 0.5m/s 20 NC (100LFM) 85 1m/s Vin=12V 15 (200LFM) 2m/s Vin=14V 80 Vin=6V (400LFM) 10 1.5m/s (300LFM) 75 5 70 0 0 5 10 15 20 25 30 35 45 55 65 75 85 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 19. Converter Efficiency versus Output Figure 22. Output Current Derating versus Ambient Current. Temperature and Airflow at 12V in. TIME, t (1μs/div) TIME, t (20μs /div) Figure 20. Typical output ripple and noise (VIN = 12V, Io Figure 23. Transient Response to Dynamic Load = 30A, C = 0.1μF // 47 μF ceramic capacitors). Change from 0% to 50% to 0% with V =12V. OUT IN TIME, t (2ms/div) TIME, t (2ms/div) Figure 21. Typical Start-up Using On/Off Voltage (Io = Figure 24. Typical Start-up Using Input Voltage (VIN = Io,max). 14V, Io = Io,max). LINEAGE POWER 8 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE V (V) (1V/div) V (V) (5V/div) EFFICIENCY, η (%) O ON/OFF V (V) (20mV/div) O OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE I (A) (5Adiv) V (V) (200mV/div) OUTPUT CURRENT, Io (A) O O V (V) (1V/div) V (V) (5V/div) O IN TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Characteristic Curves o The following figures provide typical characteristics for the APTS030A0X3-SRPHZ at 3.3V out and 25 C. 35 100 30 95 25 90 NC 20 85 1m/s Vin=12V 15 (200LFM) Vin=14V Vin=6V 2m/s 80 0.5m/s 10 (400LFM) (100LFM) 75 1.5m/s 5 (300LFM) 70 0 0 5 10 15 20 25 30 020 40 60 80 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 19. Converter Efficiency versus Output Figure 22. Output Current Derating versus Ambient Current. Temperature and Airflow at 12V in. TIME, t (1μs/div) TIME, t (20μs /div) Figure 20. Typical output ripple and noise (VIN = 12V, Io Figure 23. Transient Response to Dynamic Load = 30A, C = 0.1μF // 47 μF ceramic capacitors). Change from 0% to 50% to 0% with V =12V. OUT IN TIME, t (2ms/div) TIME, t (2ms/div) Figure 21. Typical Start-up Using On/Off Voltage (Io = Figure 24. Typical Start-up Using Input Voltage (VIN = Io,max). 14V, Io = Io,max). LINEAGE POWER 9 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE V (V) (1V/div) V (V) (2V/div) EFFICIENCY, η (%) O ON/OFF V (V) (20mV/div) O OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE I (A) (5Adiv) V (V) (200mV/div) OUTPUT CURRENT, Io (A) O O V (V) (1V/div) V (V) (5V/div) O IN TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Test Configurations Design Considerations TM The 12V Mega TLynx module should be connected to a low-impedance source. A highly CURRENT PROBE TO OSCILLOSCOPE inductive source can affect the stability of the module. An input capacitor must be placed directly L TEST VIN(+) adjacent to the input pin of the module, to minimize 1μH input ripple voltage and ensure module stability. CIN To minimize input voltage ripple, low-ESR ceramic CS 220μF Min E.S.R.<0.1Ω capacitors are recommended at the input of the 150μF @ 20°C 100kHz module. Figure 28 shows the input ripple voltage for various output voltages at 30A of load current with COM 1x22 µF, 2x22 µF or 2x47 µF ceramic capacitors and an input of 12V. NOTE: Measure input reflected ripple current with a simulated source inductance (LTEST) of 1μH. Capacitor CS offsets 400 possible battery impedance. Measure current as shown above. 350 300 1x22uF Figure 25. Input Reflected Ripple Current Test 250 2x22uF Setup. 2x47uF 200 150 COPPER STRIP 100 V (+) RESISTIVE O LOAD 50 1uF . 10uF SCOPE 0 0.5 1 1.5 2 2.5 3 COM Output Voltage (Vdc) GROUND PLANE Figure 28. Input ripple voltage for various NOTE: All voltage measurements to be taken at the module terminals, as shown above. If sockets are used then output voltages with 1x22 µF, 2x22 µF or 2x47 Kelvin connections are required at the module terminals µF ceramic capacitors at the input (30A load). to avoid measurement errors due to socket contact resistance. Input voltage is 12V. Figure 26. Output Ripple and Noise Test Setup. Output Filtering R R R R distribution contact contact distribution The 12V Mega TLynx modules are designed for low V (+) V IN O output ripple voltage and will meet the maximum output ripple specification with no external capacitors. However, additional output filtering may R LOAD V VIN O be required by the system designer for a number of reasons. First, there may be a need to further reduce the output ripple and noise of the module. R R R R distribution contact contact distribution COM COM Second, the dynamic response characteristics may need to be customized to a particular load step change. NOTE: All voltage measurements to be taken at the module terminals, as shown above. If sockets are used then To reduce the output ripple and improve the Kelvin connections are required at the module terminals to avoid measurement errors due to socket contact dynamic response to a step load change, additional resistance. capacitance at the output can be used. Low ESR ceramic and polymer are recommended to improve Figure 27. Output Voltage and Efficiency Test the dynamic response of the module. For stable Setup. operation of the module, limit the capacitance to less than the maximum output capacitance as VO. IO specified in the electrical specification table. Efficiency η = x 100 % Optimal performance of the module can be VIN. IIN achieved by using the Tunable Loop feature described later in this data sheet. LINEAGE POWER 10 BATTERY Input Ripple Voltage (mVp-p) TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Feature Descriptions 140 120 Remote On/Off 1x10uF External Cap TM 100 1x47uF External Cap The 12V Mega TLynx power modules feature a 2x47uF External Cap 4x47uF External Cap On/Off pin for remote On/Off operation. If not using 80 the On/Off pin, connect the pin to ground (the module will be ON). The On/Off signal (V ) is 60 on/off referenced to ground. The circuit configuration for 40 remote On/Off operation of the module using the On/Off pin is shown in Figure 30. 20 0 During a Logic High on the On/Off pin (transistor Q1 0.5 1 1.5 2 2.5 3 is OFF), the module remains OFF. The external Output Voltage (Volts) resistor R1 should be chosen to maintain 3.0V Figure 29. Output ripple voltage for various minimum on the On/Off pin to ensure that the module is OFF when transistor Q1 is in the OFF output voltages with external 1x10 µF, 1x47 µF, state. Suitable values for R1 are 4.7K for input 2x47 µF or 4x47 µF ceramic capacitors at the voltage of 12V and 3K for 5Vin. During Logic-Low output (30A load). Input voltage is 12V. when Q1 is turned ON, the module is turned ON. Safety Considerations The On/Off pin can also be used to synchronize the output voltage start-up and shutdown of multiple For safety agency approval the power module must modules in parallel. By connecting On/Off pins of be installed in compliance with the spacing and separation requirements of the end-use safety multiple modules, the output start-up can be agency standards, i.e., UL 60950-1 2nd Edition, synchronized (please refer to characterization curves). When On/Off pins are connected together, CSA C22.2 No. 60950-1-07, and VDE 0805- 1+A11:2009-11 (DIN EN60950-1 2nd Edition) all modules will shutdown if any one of the modules Licensed. The APTS030A0X were tested using a gets disabled due to undervoltage lockout or over 30A, time delay fuse in the ungrounded input. temperature protection. VIN+ For the converter output to be considered meeting MODULE the requirements of safety extra-low voltage Thermal SD (SELV), the input must meet SELV requirements. R1 The power module has extra-low voltage (ELV) PWM Enable outputs when all inputs are ELV. The input to these I units is to be provided with a time-delay fuse with a ON/OFF ON/OFF maximum rating of 30A in the positive input lead. + 1K V ON/OFF 100K Q1 100K GND _ Figure 30. Remote On/Off Implementation using ON/OFF . Overcurrent Protection To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting circuitry and can endure current limiting continuously. At the point of current-limit inception, the unit enters hiccup mode. The unit operates normally once the output current is brought back into its specified range. LINEAGE POWER 11 Ripple (mVp-p) TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Overtemperature Protection V (+) V (+) IN O To provide protection in a fault condition, the unit is equipped with a thermal shutdown circuit. The unit SENSE will shutdown if the overtemperature threshold of o ON/OFF 125 C is exceeded at the thermal reference point LOAD TRIM T . The thermal shutdown is not intended as a ref guarantee that the unit will survive temperatures R tri m beyond its rating. Once the unit goes into thermal shutdown it will then wait to cool before attempting GND to restart. Figure 31. Circuit configuration to program Input Undervoltage Lockout output voltage using an external resistor. At input voltages below the input undervoltage lockout limit, the module operation is disabled. The Remote Sense module will begin to operate at an input voltage TM above the undervoltage lockout turn-on threshold. The 12V Mega TLynx power modules have a Remote Sense feature to minimize the effects of Output Voltage Programming distribution losses by regulating the voltage at the TM SENSE pin. The voltage between the SENSE pin The output voltage of the 12V Mega TLynx can and VOUT pin must not exceed 0.5V. Note that the be programmed to any voltage from 0.8dc to output voltage of the module cannot exceed the 3.63Vdc by connecting a resistor (shown as R in trim specified maximum value. This includes the voltage Figure 31) between Trim and GND pins of the drop between the SENSE and Vout pins. When the module. Without an external resistor between Trim Remote Sense feature is not being used, connect and GND pins, the output of the module will be the SENSE pin to the VOUT pin. 0.8Vdc. To calculate the value of the trim resistor, R for a desired output voltage, use the following trim equation: Voltage Margining 8000   Output voltage margining can be implemented in R = Ω trim   TM Vo − 0.8   the 12V Mega TLynx modules by connecting a resistor, R , from the Trim pin to the ground margin-up Rtrim is the external resistor in Ω pin for margining-up the output voltage and by Vo is the desired output voltage connecting a resistor, R , from the Trim pin margin-down to output pin for margining-down. Figure 32 shows By using a ±0.5% tolerance trim resistor with a TC the circuit configuration for output voltage of ±100ppm, a set point tolerance of ±1.5% can be margining. The POL Programming Tool, available achieved as specified in the electrical specification. at www.lineagepower.com under the Design Tools Table 1 provides Rtrim values required for some section, also calculates the values of R and margin-up common output voltages. The POL Programming R for a specific output voltage and % margin-down Tool, available at www.lineagepower.com under the margin. Please consult your local Lineage Power Design Tools section, helps determine the required technical representative for additional details. external trim resistor needed for a specific output voltage. Monotonic Start-up and Shutdown Table 1 TM The 12V Mega TLynx modules have monotonic start-up and shutdown behavior for any combination V (V) Rtrim (KΩ) O, set of rated input voltage, output current and operating 0.8 Open temperature range. 1.0 40 1.2 20 Startup into Pre-biased Output 1.5 11.429 TM 1.8 8 The 12V Mega TLynx modules can start into a prebiased output as long as the prebias voltage is 2.5 4.706 0.5V less than the set output voltage. Note that 3.3 3.2 prebias operation is not supported when output voltage sequencing is used. LINEAGE POWER 12 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Vo the voltage at the sequencing pin will be 50mV when the sequencing signal is at zero. Rmargin-down MODULE MODULE VIN+ Q2 Trim Rmargin-up 499K + Rtrim OUT R1 Q1 - SEQ 10K GND GND Figure 32. Circuit Configuration for margining Output voltage. Figure 33. Circuit showing connection of the sequencing signal to the SEQ pin. Output Voltage Sequencing TM The 12V Mega TLynx modules include a After the 10msec delay, an analog voltage is TM sequencing feature, EZ-SEQUENCE that enables applied to the SEQ pin and the output voltage of the users to implement various types of output voltage module will track this voltage on a one-to-one volt sequencing in their applications. This is bases until the output reaches the set-point voltage. accomplished via an additional sequencing pin. To initiate simultaneous shutdown of the modules, When not using the sequencing feature, either tie the SEQ pin voltage is lowered in a controlled the SEQ pin to VIN or leave it unconnected. manner. The output voltage of the modules tracks the voltages below their set-point voltages on a When an analog voltage is applied to the SEQ pin, one-to-one basis. A valid input voltage must be the output voltage tracks this voltage until the output maintained until the tracking and output voltages reaches the set-point voltage. The final value of the reach ground potential. SEQ voltage must be set higher than the set-point TM When using the EZ-SEQUENCE feature to voltage of the module. The output voltage follows control start-up of the module, pre-bias immunity the voltage on the SEQ pin on a one-to-one basis. during start-up is disabled. The pre-bias immunity By connecting multiple modules together, multiple feature of the module relies on the module being in modules can track their output voltages to the the diode-mode during start-up. When using the voltage applied on the SEQ pin. TM EZ-SEQUENCE feature, modules goes through an internal set-up time of 10msec, and will be in For proper voltage sequencing, first, input voltage is synchronous rectification mode when the voltage at applied to the module. The On/Off pin of the module the SEQ pin is applied. This will result in the is left unconnected (or tied to GND for negative module sinking current if a pre-bias voltage is logic modules or tied to VIN for positive logic present at the output of the module. When pre-bias modules) so that the module is ON by default. After immunity during start-up is required, the EZ- applying input voltage to the module, a minimum TM SEQUENCE feature must be disabled. For 10msec delay is required before applying voltage additional guidelines on using the EZ- on the SEQ pin. This delay gives the module TM SEQUENCE feature please refer to Application enough time to complete its internal power-up soft- Note AN04-008 “Application Guidelines for Non- start cycle. During the delay time, the SEQ pin Isolated Converters: Guidelines for Sequencing of should be held close to ground (nominally 50mV ± Multiple Modules”, or contact the Lineage Power 20 mV). This is required to keep the internal op-amp technical representative for additional information. out of saturation thus preventing output overshoot during the start of the sequencing ramp. By selecting resistor R1 (see fig. 33) according to the Active Load Sharing (-P Option) following equation For additional power requirements, the 12V Mega TM 24950 TLynx power module is also available with a ohms, R1 = parallel option. Up to five modules can be V − 0.05 IN configured, in parallel, with active load sharing. LINEAGE POWER 13 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Good layout techniques should be observed when When not using the active load sharing feature, using multiple units in parallel. To implement forced share pins should be left unconnected. load sharing, the following connections should be TM made: Tunable Loop TM • The share pins of all units in parallel must be The 12V Mega TLynx modules have a new feature that optimizes transient response of the connected together. The path of these TM module called Tunable Loop . connections should be as direct as possible. • All remote-sense pins should be connected to External capacitors are usually added to the output the power bus at the same point, i.e., connect of the module for two reasons: to reduce output all the SENSE(+) pins to the (+) side of the bus. ripple and noise (see Fig. 29) and to reduce output Close proximity and directness are necessary voltage deviations from the steady-state value in the for good noise immunity presence of dynamic load current changes. Adding external capacitance however affects the voltage Some special considerations apply for design of control loop of the module, typically causing the converters in parallel operation: loop to slow down with sluggish response. Larger • When sizing the number of modules required values of external capacitance could also cause the for parallel operation, take note of the fact that module to become unstable. current sharing has some tolerance. In TM The Tunable Loop allows the user to externally addition, under transient condtions such as a adjust the voltage control loop to match the filter dynamic load change and during startup, all network connected to the output of the module. The converter output currents will not be equal. To TM allow for such variation and avoid the likelihood Tunable Loop is implemented by connecting a series R-C between the SENSE and TRIM pins of of a converter shutting off due to a current the module, as shown in Fig. 34. This R-C allows overload, the total capacity of the paralleled the user to externally adjust the voltage loop system should be no more than 75% of the sum of the individual converters. As an feedback compensation of the module. example, for a system of four 12V Mega TM TLynx converters in parallel, the total current VOUT drawn should be less that 75% of (4 x 30A) , i.e. less than 90A. SENSE • All modules should be turned on and off RTUNE together. This is so that all modules come up at the same time avoiding the problem of one C O MODULE converter sourcing current into the other CTUNE leading to an overcurrent trip condition. To ensure that all modules come up TRIM simultaneously, the on/off pins of all paralleled converters should be tied together and the RTrim GND converters enabled and disabled using the on/off pin. • The share bus is not designed for redundant Figure. 34. Circuit diagram showing connection operation and the system will be non-functional of R and C to tune the control loop of TUME TUNE upon failure of one of the unit when multiple the module. units are in parallel. In particular, if one of the converters shuts down during operation, the other converters may also shut down due to Recommended values of R and C for TUNE TUNE their outputs hitting current limit. In such a different output capacitor combinations are given in situation, unless a coordinated restart is Tables 2 and 3. Table 2 shows the recommended ensured, the system may never properly restart values of R and C for different values of TUNE TUNE since different converters will try to restart at ceramic output capacitors up to 1000uF that might different times causing an overload condition be needed for an application to meet output ripple and subsequent shutdown. This situation can and noise requirements. Selecting R and C TUNE TUNE be avoided by having an external output according to Table 2 will ensure stable operation of voltage monitor circuit that detects a shutdown the module. condition and forces all converters to shut down and restart together. In applications with tight output voltage limits in the presence of dynamic current loading, additional LINEAGE POWER 14 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current output capacitance will be required. Table 3 lists recommended values of R and C in order TUNE TUNE to meet 2% output voltage deviation limits for some common output voltages in the presence of a 15A to 30A step change (50% of full load), with an input voltage of 12V. Please contact your Lineage Power technical representative to obtain more details of this feature as well as for guidelines on how to select the right value of external R-C to tune the module for best transient performance and stable operation for other output capacitance values or input voltages other than 12V. Table 2. General recommended values of of R and C for Vin=12V and various TUNE TUNE external ceramic capacitor combinations. Co 1x47μF 2x47μF 4x47μF 10x47μF 20x47μF R 560 390 390 220 220 TUNE C 270pF 470pF 820pF 2200pF 4700pF TUNE Table 3. Recommended values of R and TUNE C to obtain transient deviation of ≤2% of TUNE Vout for a 15A step load with Vin=12V. Vo 3.3V 2.5V 1.8V 1.2V 0.8V 2x47μF + 3x47μF 2x47μF+ 3x47μF + + 10 3x330μ 7x330μF Co 3x330μF Polymer F 4x330μF x330μF Polymer Polyme Polymer Polymer r R 390 390 330 220 150 TUNE C 2200pF 3900pF 6800pF 10nF 56nF TUNE ΔV 66mV 50mV 36mV 24mV 16mV LINEAGE POWER 15 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current o exceed 130 C. The output power of the module Thermal Considerations should not exceed the rated power of the module Power modules operate in a variety of thermal (Vo,set x Io,max). environments; however, sufficient cooling should Please refer to the Application Note “Thermal always be provided to help ensure reliable Characterization Process For Open-Frame Board- operation. Mounted Power Modules” for a detailed discussion Considerations include ambient temperature, of thermal aspects including maximum device airflow, module power dissipation, and the need for temperatures. increased reliability. A reduction in the operating temperature of the module will result in an increase in reliability. The thermal data presented here is based on physical measurements taken in a wind tunnel. The test set-up is shown in Figure 35. Note that the airflow is parallel to the short axis of the module as shown in Figure 36. The derating data applies to airflow in either direction of the module’s short axis. AIRFLOW Q6 & L2 Tref DIRECTION Figure 36. Preferred airflow direction and location of 25.4_ Wind Tunnel (1.0) hot-spot of the module (Tref). PWBs Power Module 76.2_ (3.0) x Probe Location for measuring 12.7_ airflow and (0.50) ambient temperature Air flow Figure 35. Thermal Test Setup. The thermal reference points, T used in the ref specifications is shown in Figure 36. For reliable operation the temperatures at this point should not LINEAGE POWER 16 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Example Application Circuit Requirements: Vin: 12V Vout: 1.8V Iout: 22.5A max., worst case load transient is from 15A to 22.5A ΔVout: 1.5% of Vout (27mV) for worst case load transient Vin, ripple 1.5% of Vin (180mV, p-p) CI1 2x22μF/16V ceramic capacitor (e.g. TDK C Series) CI2 100μF/16V bulk electrolytic CO1 3x47μF/6.3V ceramic capacitor (e.g. TDK C Series, Murata GRM32ER60J476ME20) CO2 2x470μF/4V Polymer/poscap, Low EST (e.g. Sanyo Poscap 4TPE470MCL/4TPF470ML) CTune 15nF ceramic capacitor RTune 430 ohms SMT resistor RTrim 8kΩ SMT resistor (recommended tolerance of 0.1%) LINEAGE POWER 17 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Mechanical Outline of Module Dimensions are in millimeters and (inches). Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated] x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.) Pin No. Function 1 On/Off 2 V IN 3 SEQ 4 GND 5 V OUT 6 TRIM 7 SENSE 8 GND 9 SHARE 10 GND BOTTOM VIEW SIDE VIEW TOP VIEW Co-planarity (max) : 0.102[0.004] LINEAGE POWER 18 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Recommended Pad Layout Dimensions are in millimeters and (inches). Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated] x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.) Pin 8 Pin 10 PIN FUNCTION PIN FUNCTION 1 On/Off 6 Trim 2 VIN 7 Sense 3 SEQ 8 GND 4 GND 9 SHARE 5 VOUT 10 GND LINEAGE POWER 19 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Packaging Details TM The 12V Mega TLynx SMT version is supplied in tape & reel as standard. Modules are shipped in quantities of 200 modules per reel. All Dimensions are in millimeters and (in inches). Reel Dimensions Outside diameter: 330.2 (13.0) Inside diameter: 177.8 (7.0) Tape Width: 44.0 (1.73) LINEAGE POWER 20 TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current forward and backward compatible in a Pb-free and Surface Mount Information a SnPb soldering process. Failure to observe the instructions below may result in the failure of or Pick and Place cause damage to the modules and can TM The 12V Mega TLynx SMT modules use an open adversely affect long-term reliability. frame construction and are designed for a fully automated assembly process. The modules are fitted with a label designed to provide a large surface area Pb-free Reflow Profile for pick and place operations. The label meets all the Power Systems will comply with J-STD-020 Rev. C requirements for surface mount processing, as well as (Moisture/Reflow Sensitivity Classification for safety standards, and is able to withstand reflow Nonhermetic Solid State Surface Mount Devices) o temperatures of up to 300 C. The label also carries for both Pb-free solder profiles and MSL product information such as product code, serial classification procedures. This standard provides number and location of manufacture. a recommended forced-air-convection reflow profile based on the volume and thickness of the package (table 4-2). The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). Recommended linear reflow profile using Sn/Ag/Cu solder: Per J-STD-020 Rev. C 300 Peak Temp 260°C 250 Cooling Zone 4°C/Second 200 * Min. Time Above 235°C 15 Seconds 150 *Time Above 217°C Heating Zone Figure 37. Pick and Place Location. 60 Seconds 1°C/Second 100 50 Nozzle Recommendations The module weight has been kept to a minimum by 0 Reflow Time (Seconds) using open frame construction. Even so, these modules have a relatively large mass when compared to conventional SMT components. Variables such as nozzle size, tip style, vacuum pressure and pick & NOTE: Soldering outside of the recommended placement speed should be considered to optimize profile requires testing to verify results and this process. The minimum recommended inside performance. nozzle diameter for reliable operation is 3mm. The maximum nozzle outer diameter, which will safely fit within the allowable component spacing, is 5 mm max. Tin Lead Soldering TM Bottom Side Assembly The 12V Mega TLynx SMT power modules are lead free modules and can be soldered either in a lead- This module is not recommended for assembly free solder process or in a conventional Tin/Lead on the bottom side of a customer board. If such (Sn/Pb) process. It is recommended that the an assembly is attempted, components may fall customer review data sheets in order to customize the off the module during the second reflow process. solder reflow profile for each application board If assembly on the bottom side is planned, please assembly. The following instructions must be contact Lineage Power for special manufacturing observed when soldering these units. Failure to process instructions. observe these instructions may result in the failure of or cause damage to the modules, and can adversely affect long-term reliability. Lead-free (Pb-free) Soldering The –Z version Mega TLynx modules are lead-free (Pb-free) and RoHS compliant and are both LINEAGE POWER 21 Reflow Temp (°C) TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current In a conventional Tin/Lead (Sn/Pb) solder process MSL Rating peak reflow temperatures are limited to less than o o TM 235 C. Typically, the eutectic solder melts at 183 C, The 12V Mega TLynx SMT modules have a MSL wets the land, and subsequently wicks the device rating of 2. connection. Sufficient time must be allowed to fuse the plating on the connection to ensure a reliable Storage and Handling solder joint. There are several types of SMT reflow The recommended storage environment and handling technologies currently used in the industry. These procedures for moisture-sensitive surface mount surface mount power modules can be reliably packages is detailed in J-STD-033 Rev. A (Handling, soldered using natural forced convection, IR (radiant Packing, Shipping and Use of Moisture/Reflow infrared), or a combination of convection/IR. For Sensitive Surface Mount Devices). Moisture barrier reliable soldering the solder reflow profile should be bags (MBB) with desiccant are required for MSL established by accurately measuring the modules CP ratings of 2 or greater. These sealed packages connector temperatures. should not be broken until time of use. Once the original package is broken, the floor life of the product at conditions of <= 30°C and 60% relative humidity 300 varies according to the MSL rating (see J-STD-033A). o Peak Temp 235 C The shelf life for dry packed SMT packages will be a 250 Cooling minimum of 12 months from the bag seal date, when zone Heat zo ne stored at the following conditions: < 40° C, < 90% 200 o -1 o -1 1-4 Cs max 4 Cs relative humidity. 150 Post Solder Cleaning and Drying So ak zone 10 0 T above Considerations 30-240s lim o 205 C Post solder cleaning is usually the final circuit-board 50 Preheat zone assembly process prior to electrical board testing. The o -1 max 4 Cs result of inadequate cleaning and drying can affect 0 both the reliability of a power module and the testability of the finished circuit-board assembly. For REFLOW TIME (S) guidance on appropriate soldering, cleaning and drying procedures, refer to Board Mounted Power Figure 38. Reflow Profile for Tin/Lead (Sn/Pb) Modules: Soldering and Cleaning Application Note process. (AN04-001). 240 235 230 225 220 215 210 205 200 0 10 203040 5060 o Figure 39. Time Limit Curve Above 205 C Reflow for Tin Lead (Sn/Pb) process. LINEAGE POWER 22 MAX TEMP SOLDER (°C) REFLOW TEMP (°C) TM Data Sheet 12V Mega TLynx : Non-Isolated DC-DC Power Modules: May 4, 2012 6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 30A output current Ordering Information Table 4. Device Codes Input Output Output On/Off Connector Product codes Comcodes Voltage Voltage Current Logic Type APTS030A0X3-SRPHZ 6.0 – 14Vdc 0.8 – 3.63Vdc 30A Negative SMT CC109138351 Table 5. Coding Scheme TLynx Sequencing Input voltage Output current Output voltage Options ROHS Compliance family feature. range AP T S 030A0 X -SR Z T = with Seq. S = 6 - 14V 30A X = S = Surface Mount Z = ROHS6 programmable R = Tape&Reel output P = Paralleling Table 6. Device Options Option Device Code Suffix Current Share -P 2 Extra ground pins -H RoHS Compliant -Z Asia-Pacific Headquarters Tel: +86.021.54279977*808 Europe, Middle-East and Africa Headquarters World Wide Headquarters Tel: +49.89.878067-280 Lineage Power Corporation 601 Shiloh Road, Plano, TX 75074, USA +1-888-LINEAGE(546-3243) (Outside U.S.A.: +1-972-244-WATT(9288)) India Headquarters Tel: +91.80.28411633 www.lineagepower.com e-mail: techsupport1@lineagepower.com Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents. © 2010 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved. LINEAGE POWER 23 Document No: DS09-003 ver 1.13 PDF Name: APTS030A0X3_ds.pdf