Data Sheet GE Energy TM 6A Austin MicroLynx II : 12V SIP Non-Isolated DC-DC Power Module 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Features RoHS Compliant  Compliant to RoHS EU Directive 2011/65/EU (-Z versions)  Compliant to RoHS EU Directive 2011/65/EU under exemption 7b (Lead solder exemption). Exemption 7b will expire after June 1, 2016 at which time this product will no longer be RoHS compliant (non-Z versions)  Flexible output voltage sequencing TM EZ-SEQUENCE  Delivers up to 6A output current TM EZ-SEQUENCE  High efficiency – 89% at 5.0V full load (V = 12.0V) IN  Small size and low profile: Applications 25.4 mm x 12.7 mm x 6.68 mm  Distributed power architectures (1.00 in x 0.5 in x 0.263 in)  Low output ripple and noise  Intermediate bus voltage applications  High Reliability:  Telecommunications equipment o Calculated MTBF = 15.3M hours at 25 C Full-load  Servers and storage applications  Constant switching frequency (300 KHz)  Networking equipment  Programmable Output voltage  Enterprise Networks  Line Regulation: 0.3% (typical)  Latest generation IC’s (DSP, FPGA, ASIC) and Microprocessor powered applications  Load Regulation: 0.4% (typical)  Temperature Regulation: 0.4 % (typical)  Remote On/Off  Output overcurrent protection (non-latching)  Wide operating temperature range (-40°C to 85°C) †  UL* 60950-1Recognized, CSA C22.2 No. 60950-1-03 ‡ Certified, and VDE 0805:2001-12 (EN60950-1) Licensed  ISO** 9001 and ISO 14001 certified manufacturing facilities Description TM Austin MicroLynx II 12V SIP power modules are non-isolated dc-dc converters that can deliver up to 6A of output current with full load efficiency of 89% at 5.0V output. These modules provide precisely regulated output voltage programmable via external TM resistor from 0.75Vdc to 5.5Vdc over a wide range of input voltage (VIN = 8.3 - 14V). The Austin MicroLynx II 12V series has a TM sequencing feature, EZ-SEQUENCE that enable designers to implement various types of output voltage sequencing when powering multiple voltages on a board. Their open-frame construction and small footprint enable designers to develop cost- and space-efficient solutions. * 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 October 1, 2015 ©2015 General Electric Company. All rights reserved. GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A 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 All VIN -0.3 15 Vdc Continuous Sequencing voltage All Vseq -0.3 V Vdc IN,max Operating Ambient Temperature All TA -40 85 °C (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 Vo,set ≤ 3.63 V 8.3 12 14 Vdc IN Vo,set > 3.63 VIN 8.3 12 13.2 Vdc Maximum Input Current All IIN,max 4.5 Adc (VIN= VIN, min to VIN, max, IO=IO, max ) Input No Load Current V = 0.75 Vdc I 17 mA O,set IN,No load (V = V , Io = 0, module enabled) V = 5.5 Vdc I 100 mA IN IN, nom O,set IN,No load Input Stand-by Current All IIN,stand-by 1.2 mA (V = V , module disabled) IN IN, nom 2 2 Inrush Transient All I t 0.4 A s Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; V to V All 30 mAp-p IN, min IN, max, IO= IOmax ; See Test configuration section) Input Ripple Rejection (120Hz) All 30 dB CAUTION: This power module is not internally fused. An input line fuse must always be used. This power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of a complex power architecture. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 6 A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information. October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 2 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Output Voltage Set-point All VO, set -2.0 VO, set +2.0 % VO, set (V =V , I =I , T =25°C) IN IN, min O O, max A Output Voltage All VO, set -2.5%  +3.5% % VO, set (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range All V 0.7525 5.5 Vdc O Selected by an external resistor Output Regulation Line (VIN=VIN, min to VIN, max) All  0.3  % VO, set Load (IO=IO, min to IO, max) All  0.4  % VO, set Temperature (Tref=TA, min to TA, max) All  0.4  % VO, set Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Cout = 1μF ceramic//10μFtantalum capacitors) RMS (5Hz to 20MHz bandwidth) All 15 30 mV  rms Peak-to-Peak (5Hz to 20MHz bandwidth) All 50 75 mV  pk-pk External Capacitance ESR ≥ 1 mΩ All C 1000 μF O, max   ESR ≥ 10 mΩ All C 3000 μF O, max   Output Current All I 0 6 Adc o Output Current Limit Inception (Hiccup Mode ) All I 200 % I O, lim   o (VO= 90% of VO, set) Output Short-Circuit Current All I  2  Adc O, s/c (V ≤250mV) ( Hiccup Mode ) O V = O, set Efficiency η 80.0 % 1.2Vdc V = O,set VIN= VIN, nom, TA=25°C η 83.0 % 1 5Vdc V = O,set IO=IO, max , VO= VO,set η 83.5 % 1 8Vdc V = O,set η 86.5 % 2 5Vdc V = O,set η 89.0 % 3 3Vdc V = O,set η 91.0 % 5 0Vdc Switching Frequency All f  300  kHz sw Dynamic Load Response (dIo/dt=2.5A/µs; V = V ; T =25°C) All Vpk  200  mV IN IN, nom A Load Change from Io= 50% to 100% of Io,max; 1μF ceramic// 10 μF tantalum Peak Deviation Settling Time (Vo<10% peak deviation) All ts  25  µs (dIo/dt=2.5A/µs; V = V ; T =25°C) All Vpk  200  mV IN IN, nom A Load Change from Io= 100% to 50%of Io,max: 1μF ceramic// 10 μF tantalum Peak Deviation Settling Time (Vo<10% peak deviation) All ts  25  µs October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 3 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Dynamic Load Response (dIo/dt=2.5A/µs; V VIN = VIN, nom; TA=25°C) All Vpk  50  mV Load Change from Io= 50% to 100% of Io,max; Co = 2x150 μF polymer capacitors Peak Deviation Settling Time (Vo<10% peak deviation) All t  50  µs s (dIo/dt=2.5A/µs; V = V ; T =25°C) All V  50  mV IN IN, nom A pk Load Change from Io= 100% to 50%of Io,max: Co = 2x150 μF polymer capacitors Peak Deviation Settling Time (Vo<10% peak deviation) All ts  50  µs General Specifications Parameter Min Typ Max Unit Calculated MTBF (I =I , T =25°C) O O, max A 15,371,900 Hours per Telecordia SR-332 Issue 1: Method 1 Case 3 Weight  2.8 (0.1)  g (oz.) October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 4 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A 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 Device code with Suffix “4” – Positive logic (On/Off is open collector/drain logic input; Signal referenced to GND - See feature description section) Input High Voltage (Module ON) All VIH ― ― V V IN, max Input High Current All IIH ― ― 10 μA Input Low Voltage (Module OFF) All VIL -0.2 ― 0.3 V Input Low Current All IIL ― 0.2 1 mA Device Code with no suffix – Negative Logic (On/OFF pin is open collector/drain logic input with external pull-up resistor; signal referenced to GND) Input High Voltage (Module OFF) All VIH 2.5 ― V Vdc IN,max Input High Current All IIH 0.2 1 mA Input Low Voltage (Module ON) All VIL -0.2 ― 0.3 Vdc Input low Current All IIL ― 10 μA Turn-On Delay and Rise Times o (I =I V = V T = 25 C, ) O O, max , IN IN, nom, A Case 1: On/Off input is set to Logic Low (Module All Tdelay ― 3 ― msec ON) and then input power is applied (delay from instant at which VIN =VIN, min until Vo=10% of Vo,set) All Tdelay ― 3 ― msec Case 2: Input power is applied for at least one second and then the On/Off input is set to logic Low (delay from instant at which Von/Off=0.3V until Vo=10% of Vo, set) All Trise ― 4 6 msec Output voltage Rise time (time for Vo to rise from 10% of Vo,set to 90% of Vo, set) 1 Output voltage overshoot – Startup ― % VO, set o IO= IO, max; VIN = 8.3 to 14Vdc, TA = 25 C Sequencing Delay time Delay from VIN, min to application of voltage on SEQ pin All TsEQ-delay 10 msec Tracking Accuracy (Power-Up: 2V/ms) All 100 200 mV |VSEQ –Vo | (Power-Down: 1V/ms) All |VSEQ –Vo | 300 500 mV (VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo) Overtemperature Protection All T 140 °C ref   (See Thermal Consideration section) Input Undervoltage Lockout Turn-on Threshold All 7.9 V Turn-off Threshold All 7.8 V October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 5 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Characteristic Curves TM The following figures provide typical characteristics for the Austin MicroLynx II 12V SIP modules at 25ºC. 86 91 84 88 82 85 80 82 VIN=8.3V 78 79 IN V =8.3V VIN=12V 76 76 IN V =12V IN V =14V 74 73 IN V =14V 72 70 0 1 2 3 4 5 6 0 1 2 3 4 5 6 OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A) Figure 1. Converter Efficiency versus Output Current (Vout Figure 4. Converter Efficiency versus Output Current (Vout = 1.2Vdc). = 2.5Vdc). 88 93 90 86 87 84 84 82 IN V =8.3V 81 80 IN V =12V IN V =8.3V 78 78 IN V =14V IN V =12V 75 76 IN V =14V 72 74 0 1 2 3 4 5 6 0 1 2 3 4 5 6 OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A) Figure 2. Converter Efficiency versus Output Current (Vout Figure 5. Converter Efficiency versus Output Current (Vout = 1.5Vdc). = 3.3Vdc). 88 96 86 93 90 84 82 87 IN V =8.3V 84 80 IN V =12V VIN=8.3V 81 78 IN V =14V IN V =12V 78 76 IN V =14V 75 74 0 1 2 3 4 5 6 0 1 2 3 4 5 6 OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A) Figure 3. Converter Efficiency versus Output Current (Vout Figure 6. Converter Efficiency versus Output Current (Vout = 1.8Vdc). = 5.0Vdc). October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 6 EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Characteristic Curves (continued) TM The following figures provide typical characteristics for the MicroLynx II 12V SIP modules at 25ºC. 4.5 Io = 6A 4 Io=3A 3.5 Io=0A 3 2.5 2 1.5 1 0.5 0 7 8 9 10 11 12 13 14 INPUT VOLTAGE, V (V) IN TIME, t (5 µs/div) Figure 7. Input voltage vs. Input Current Figure 10. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3Vdc). (Vout = 5Vdc). TIME, t (2µs/div) TIME, t (5 µs/div) Figure 8. Typical Output Ripple and Noise Figure 11. Transient Response to Dynamic Load Change from 100% to 50% of full load (Vo = 3.3 Vdc). (Vin = 12V dc, Vo = 2.5 Vdc, Io=6A). TIME, t (2µs/div) TIME, t (10µs/div) Figure 9. Typical Output Ripple and Noise Figure 12. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 5.0 Vdc, Cext = 2x150 (Vin = 12.0V dc, Vo = 3.3 Vdc, Io=6A). μF Polymer Capacitors). October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 7 OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT CURRENT, I (A) VO (V) (10mV/div) VO (V) (10mV/div) IN OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE IO (A) (2A/div) VO (V) (100mV/div) IO (A) (2A/div) VO (V) (100mV/div) IO (A) (2A/div) VO (V) (100mV/div) GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Characteristic Curves (continued) TM The following figures provide typical characteristics for the Austin MicroLynx II 12V SIP modules at 25ºC. TIME, t (10µs/div) TIME, t (1 ms/div) Figure 13. Transient Response to Dynamic Load Change Figure 16. Typical Start-Up with application of Vin with (Vin from 100% of 50% full load (Vo = 5.0 Vdc, Cext = 2x150 μF = 12Vdc, Vo = 3.3Vdc, Io = 6A). Polymer Capacitors). TIME, t (1 ms/div) TIME, t (1 ms/div) Figure 14. Typical Start-Up Using Remote On/Off Figure 17 Typical Start-Up using Remote On/off with Prebias (Vin = 12Vdc, Vo = 1.8Vdc, Io = 1A, Vbias =1.0 Vdc). (Vin = 12Vdc, Vo = 3.3Vdc, Io = 6.0A). TIME, t (1 ms/div) TIME, t (20ms/div) Figure 15. Typical Start-Up Using Remote On/Off with Low- Figure 18. Output short circuit Current (Vin = 12Vdc, Vo = ESR external capacitors (7x150uF Polymer) 0.75Vdc). (Vin = 12Vdc, Vo = 3.3Vdc, Io = 6.0A, Co = 1050µF). October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 8 OUTPUT VOLTAGE On/Off VOLTAGE OUTPUT VOLTAGE On/Off VOLTAGE OUTPUT CURRENT OUTPUTVOLTAGE VOV) (1V/div) VOn/off (V) (2V/div) VOV) (2V/div) VOn/off (V) (5V/div) IO (A) (2A/div) VO (V) (100mV/div) OUTPUT CURRENT, OUTPUT VOLTAGE On/Off VOLTAGE OUTPUT VOLTAGE, INPUT VOLTAGE V (V) o IO (A) (5A/div) VOV) (1V/div) VOn/off (V) (2V/div) (2V/div) VIN (V) (5V/div) GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Characteristic Curves (continued) TM The following figures provide thermal derating curves for the Austin MicroLynx II 12V SIP modules. 7 7 6 6 5 5 NC NC 4 4 0.5m/s (100 LFM) 0.5m/s (100 LFM) 3 3 1.0m/s (200 LFM) 1.0m/s (200 LFM) 2 2 1.5m/s (300 LFM) 1.5m/s (300 LFM) 1 1 2.0m/s (400 LFM) 2.0m/s (400 LFM) 0 0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 O O AMBIENT TEMPERATURE, TA C AMBIENT TEMPERATURE, TA C Figure 19. Derating Output Current versus Local Ambient Figure 22. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 12Vdc, Vo=0.75Vdc). Temperature and Airflow (Vin = 12Vdc, Vo=3.3 Vdc). 7 7 6 6 5 5 NC NC 4 4 0.5m/s (100 LFM) 0.5m/s (100 LFM) 3 3 1.0m/s (200 LFM) 1.0m/s (200 LFM) 2 2 1.5m/s (300 LFM) 1.5m/s (300 LFM) 1 1 2.0m/s (400 LFM) 2.0m/s (400 LFM) 0 0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 O O AMBIENT TEMPERATURE, TA C AMBIENT TEMPERATURE, TA C Figure 20. Derating Output Current versus Local Ambient Figure 23. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 12Vdc, Vo=1.8 Vdc). Temperature and Airflow (Vin = 12Vdc, Vo=5.0 Vdc). 7 6 5 NC 4 0.5m/s (100 LFM) 3 1.0m/s (200 LFM) 2 1.5m/s (300 LFM) 1 2.0m/s (400 LFM) 0 20 30 40 50 60 70 80 90 O AMBIENT TEMPERATURE, T C A Figure 21. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 12Vdc, Vo=2.5 Vdc). October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 9 OUTPUT CURRENT, Io (A) OUTPUT CURRENT, Io (A) OUTPUT CURRENT, Io (A) OUTPUT CURRENT, Io (A) OUTPUT CURRENT, Io (A) GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Test Configurations Design Considerations Input Filtering CURRENT PROBE TO OSCILLOSCOPE TM The Austin MicroLynx II 12V SIP module should be L TEST connected to a low-impedance source. A highly V (+) IN 1μH inductive source can affect the stability of the module. An input capacitance must be placed directly adjacent to the input pin of the module, to minimize input ripple CIN CS 1000μF Electrolytic voltage and ensure module stability. 2x100μF E.S.R.<0.1Ω Tantalum @ 20°C 100kHz In a typical application, 2x47 µF low-ESR tantalum COM capacitors (AVX part #: TPSE476M025R0100, 47µF 25V 100 mΩ ESR tantalum capacitor) will be sufficient to NOTE: Measure input reflected ripple current with a simulated source inductance (L ) of 1μH. Capacitor C offsets TEST S provide adequate ripple voltage at the input of the possible battery impedance. Measure current as shown module. To minimize ripple voltage at the input, low ESR above. ceramic capacitors are recommended at the input of the Figure 24. Input Reflected Ripple Current Test Setup. module. Figure 27 shows input ripple voltage (mVp-p) for various outputs with 2x47 µF tantalum capacitors and with 2x 22 µF ceramic capacitor (TDK part #: COPPER STRIP C4532X5R1C226M) at full load. V O (+) RESISTIVE LOAD 350 1uF . 10uF SCOPE 300 COM 250 200 GROUND PLANE 150 NOTE: All voltage measurements to be taken at the module terminals, as shown above. If sockets are used then 100 Kelvin connections are required at the module terminals to avoid measurement errors due to socket contact Tantalum resistance. 50 Ceramic Figure 25. Output Ripple and Noise Test Setup. 0 0 1 2 3 4 5 6 R R R R distribution contact contact distribution Output Voltage (Vdc) V (+) V IN O Figure 27. Input ripple voltage for various output with 2x47 µF tantalum capacitors and with 2x22 µF ceramic R LOAD V VIN O capacitors at the input (80% of Io,max). Rdistribution Rcontact Rcontact Rdistribution COM COM NOTE: All voltage measurements to be taken at the module terminals, as shown above. If sockets are used then Kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance. Figure 26. Output Voltage and Efficiency Test Setup. V . I O O Efficiency η = x 100 % V . I IN IN October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 10 BATTERY Input Ripple Voltage (mVp-p) GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Design Considerations (continued) Safety Considerations For safety agency approval the power module must be installed in compliance with the spacing and separation Output Filtering requirements of the end-use safety agency standards, i.e., TM The Austin MicroLynx II 12V SIP module is designed for low UL 60950-1, CSA C22.2 No. 60950-1-03, and VDE 0850:2001- output ripple voltage and will meet the maximum output 12 (EN60950-1) Licensed. ripple specification with 1 µF ceramic and 10 µF polymer capacitors at the output of the module. However, additional For the converter output to be considered meeting the output filtering may be required by the system designer for requirements of safety extra-low voltage (SELV), the input a number of reasons. First, there may be a need to further must meet SELV requirements. The power module has reduce the output ripple and noise of the module. Second, extra-low voltage (ELV) outputs when all inputs are ELV. the dynamic response characteristics may need to be customized to a particular load step change. The input to these units is to be provided with a fast-acting fuse with a maximum rating of 6A in the positive input lead. To reduce the output ripple and improve the dynamic response to a step load change, additional capacitance at the output can be used. Low ESR polymer and ceramic capacitors are recommended to improve the dynamic response of the module. For stable operation of the module, limit the capacitance to less than the maximum output capacitance as specified in the electrical specification table. October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 11 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Feature Description VIN+ MODULE R pull-up Remote On/Off I ON/OFF TM Austin MicroLynx II 12V SIP power modules feature an ON/OFF On/Off pin for remote On/Off operation. Two On/Off logic + PWM Enable TM options are available in the Austin MicroLynx II 12V series V ON/OFF R1 modules. Positive Logic On/Off signal, device code suffix “4”, turns the module ON during a logic High on the On/Off pin Q2 CSS and turns the module OFF during a logic Low. Negative Q1 logic On/Off signal, no device code suffix, turns the module R2 OFF during logic High and turns the module ON during logic Low. GND _ For positive logic modules, the circuit configuration for using Figure 29. Circuit configuration for using negative logic the On/Off pin is shown in Figure 28. The On/Off pin is an open collector/drain logic input signal (Von/Off) that is On/OFF. referenced to ground. During a logic-high (On/Off pin is pulled high internal to the module) when the transistor Q1 is Overcurrent Protection in the Off state, the power module is ON. Maximum allowable leakage current of the transistor when Von/off = To provide protection in a fault (output overload) condition, VIN,max is 10µA. Applying a logic-low when the transistor Q1 the unit is equipped with internal current-limiting circuitry is turned-On, the power module is OFF. During this state and can endure current limiting continuously. At the point of VOn/Off must be less than 0.3V. When not using positive current-limit inception, the unit enters hiccup mode. The unit logic On/off pin, leave the pin unconnected or tie to V IN. operates normally once the output current is brought back into its specified range. The typical average output current during hiccup is 2A. VIN+ MODULE Input Undervoltage Lockout R2 At input voltages below the input undervoltage lockout limit, module operation is disabled. The module will begin to ON/OFF Q2 operate at an input voltage above the undervoltage lockout + R1 turn-on threshold. V ON/OFF I ON/OFF PWM Enable Overtemperature Protection R3 To provide over temperature protection in a fault condition, Q1 the unit relies upon the thermal protection feature of the Q3 CSS controller IC. The unit will shutdown if the thermal reference o point T , (see Figure 33) exceeds 140 C (typical), but the ref2 R4 thermal shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. The module GND _ will automatically restarts after it cools down. Figure 28. Circuit configuration for using positive logic On/OFF. For negative logic On/Off devices, the circuit configuration is shown is Figure 29. The On/Off pin is pulled high with an external pull-up resistor (typical Rpull-up = 68k, +/- 5%). When transistor Q1 is in the Off state, logic High is applied to the On/Off pin and the power module is Off. The minimum On/off voltage for logic High on the On/Off pin is 2.5 Vdc. To turn the module ON, logic Low is applied to the On/Off pin by turning ON Q1. When not using the negative logic On/Off, leave the pin unconnected or tie to GND. October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 12 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current helps determine the required external trim resistor needed Feature Descriptions (continued) for a specific output voltage. Output Voltage Programming TM The output voltage of the Austin MicroLynx II 12V SIP can The amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the be programmed to any voltage from 0.75Vdc to 5.5Vdc by connecting a resistor (shown as Rtrim in Figure 30) between output current. When using the trim feature, the output voltage of the module can be increased, which at the Trim and GND pins of the module. Without an external resistor between Trim and GND pins, the output of the same output current would increase the power output of module will be 0.7525Vdc. To calculate the value of the trim the module. Care should be taken to ensure that the resistor, Rtrim for a desired output voltage, use the following maximum output power of the module remains at or = V x I ). equation: below the maximum rated power (Pmax o,set o,max 10500   Voltage Margining Rtrim= −1000Ω   Vo− 0.7525   Output voltage margining can be implemented in the TM Austin MicroLynx II modules by connecting a resistor, Rtrim is the external resistor in Ω R , from Trim pin to ground pin for margining-up margin-up Vo is the desired output voltage the output voltage and by connecting a resistor, Rmargin- , from Trim pin to Output pin. Figure 31 shows the down For example, to program the output voltage of the Austin circuit configuration for output voltage margining. The TM MicroLynx 12V module to 1.8V, Rtrim is calculated as POL Programming Tool, available at follows: www.gecriticalpower.com under the Design Tools section, 10500   also calculates the values of R and R for a margin-up margin-down Rtrim= −1000   specific output voltage and % margin. Please consult your 1.8− 0.7525   GE technical representative for additional details Rtrim= 9.024kΩ Vo V (+) V (+) IN O Rmargin-down Austin Lynx or Lynx II Series ON/OFF LOAD TRIM Q2 Trim R trim GND Rmargin-up Rtrim Figure 30. Circuit configuration to program output voltage using an external resistor Q1 GND Table 1 provides Rtrim values for most common output voltages. Table 1 Figure 31. Circuit Configuration for margining Output voltage. VO, set (V) Rtrim (KΩ) 0.7525 Open 1.2 22.46 1.5 13.05 1.8 9.024 2.5 5.009 3.3 3.122 5.5 1.472 Using 1% tolerance trim resistor, set point tolerance of ±2% is achieved as specified in the electrical specification. The POL Programming Tool, available at www.gecriticalpower.com under the Design Tools section, October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 13 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Feature Descriptions (continued) Voltage Sequencing TM Austin MicroLynx II 12V series of modules include a TM sequencing feature, EZ-SEQUENCE that enables users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When not using the sequencing feature, either tie the SEQ pin to VIN or leave it unconnected. When an analog voltage is applied to the SEQ pin, the output voltage tracks this voltage until the output reaches the set-point voltage. The SEQ voltage must be set higher than the set-point voltage of the module. The output voltage follows the voltage on the SEQ pin on a one-to-one volt basis. By connecting multiple modules together, customers can get multiple modules to track their output voltages to the voltage applied on the SEQ pin. For proper voltage sequencing, first, input voltage is applied to the module. The On/Off pin of the module is left unconnected (or tied to GND for negative logic modules or tied to VIN for positive logic modules) so that the module is ON by default. After applying input voltage to the module, a minimum of 10msec delay is required before applying voltage on the SEQ pin. During this time, potential of 50mV (± 10 mV) is maintained on the SEQ pin. After 10msec delay, an analog voltage is applied to the SEQ pin and the output voltage of the module will track this voltage on a one-to-one volt bases until output reaches the set-point voltage. To initiate simultaneous shutdown of the modules, the SEQ pin voltage is lowered in a controlled manner. Output voltage of the modules tracks the voltages below their set-point voltages on a one-to-one basis. A valid input voltage must be maintained until the tracking and output voltages reach ground potential to ensure a controlled shutdown of the modules. TM When using the EZ-SEQUENCE feature to control start-up of the module, pre-bias immunity feature during start-up is disabled. The pre-bias immunity feature of the module relies on the module being in the diode-mode during start- TM up. When using the EZ-SEQUENCE feature, modules goes through an internal set-up time of 10msec, and will be in synchronous rectification mode when voltage at the SEQ pin is applied. This will result in sinking current in the module if pre-bias voltage is present at the output of the module. When pre-bias immunity during start-up is required, the EZ- TM SEQUENCE feature must be disabled. For additional TM guidelines on using EZ-SEQUENCE feature of Austin TM MicroLynx II 12V, contact your GE technical representative for preliminary application note on output voltage sequencing using Austin Lynx II series. October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 14 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Thermal Considerations 25.4_ Wind Tunnel (1.0) Power modules operate in a variety of thermal environments; however, sufficient cooling should be provided to help ensure reliable operation. PWBs Power Module Considerations include ambient temperature, airflow, module power dissipation, and the need for 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 76.2_ (3.0) 33. Note that the airflow is parallel to the long axis of the module as shown in Figure 32. The derating data applies to x airflow in either direction of the module’s long axis. Probe Location for measuring 7.24_ airflow and (0.285) ambient temperature Air flow Figure 33. Thermal Test Set-up. Heat Transfer via Convection Increased airflow over the module enhances the heat transfer via convection. Thermal derating curves showing the maximum output current that can be delivered by various module versus local ambient temperature (TA) for natural convection and up to 1m/s (200 ft./min) are shown in the Characteristics Curves section. Figure 32. T Temperature measurement location. ref The thermal reference point, Tref 1 used in the specifications of thermal derating curves is shown in Figure 32. For reliable operation this temperature should not exceed o 125 C. The output power of the module should not exceed the rated power of the module (Vo,set x Io,max). Please refer to the Application Note “Thermal Characterization Process For Open-Frame Board-Mounted Power Modules” for a detailed discussion of thermal aspects including maximum device temperatures. October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 15 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Post solder Cleaning and Drying Considerations Post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. The result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. For guidance on appropriate soldering, cleaning and drying procedures, refer to Board Mounted Power Modules: Soldering and Cleaning Application Note. Through-Hole Lead-Free Soldering Information The RoHS-compliant through-hole products use the SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant components. They are designed to be processed through single or dual wave soldering machines. The pins have an RoHS- compliant finish that is compatible with both Pb and Pb-free wave soldering processes. A maximum preheat rate of 3°C/s is suggested. The wave preheat process should be such that the temperature of the power module board is kept below 210°C. For Pb solder, the recommended pot temperature is 260°C, while the Pb-free solder pot is 270°C max. Not all RoHS-compliant through-hole products can be processed with paste-through-hole Pb or Pb-free reflow process. If additional information is needed, please consult with your GE technical representative for more details. October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 16 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Mechanical Outline 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.) Top View Side View Bottom View PIN FUNCTION 1 Vo 2 Trim 3 GND A SEQ 4 VIN 5 On/Off October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 17 Data Sheet GE Energy TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Recommended Pad Layout PIN FUNCTION Dimensions are in millimeters and (inches). 1 Vo Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated] 2 Trim x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.) 3 GND A SEQ 4 VIN 5 On/Off Through Hole Pad Layout – Back view October 1, 2015 ©2015 General Electric Company. All rights reserved. Page 18 GE Energy Data Sheet TM 6A Austin MicroLynxII : 12V SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 6A Output Current Ordering Information Please contact your GE Sales Representative for pricing, availability and optional features. Table 2. Device Codes Input Output Output Efficiency Connector Device Code Comcodes Voltage Voltage Current 3.3V@ 6A Type ATA006A0X 8.3 – 14Vdc 0.75 – 5.5Vdc 6 A 89.0% SIP 108989034 ATA006A0XZ 8.3 – 14Vdc 0.75 – 5.5Vdc 6 A 89.0% SIP CC109101763 ATA006A0X4 8.3 – 14Vdc 0.75 – 5.5Vdc 6 A 89.0% SIP 108989042 ATA006A0X4Z 8.3 – 14Vdc 0.75 – 5.5Vdc 6 A 89.0% SIP CC109104642 -Z refers to RoHS-compliant versions. Contact Us For more information, call us at USA/Canada: +1 877 546 3243, or +1 972 244 9288 Asia-Pacific: +86.021.54279977*808 Europe, Middle-East and Africa: +49.89.878067-280 www.gecriticalpower.com GE Critical Power reserves the right to make changes to the product(s) or information contained herein without notice, and 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. October 1, 2015 ©2015 General Electric Company. All International rights reserved. Version 1.35