Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A 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 EZ-SEQUENCE  Delivers up to 10A of output current  High efficiency – 93% at 3.3V full load (V = 12.0V) IN  Small size and low profile: 33.00 mm x 13.46 mm x 8.28 mm (1.300 in x 0.530 in x 0.326 in) Applications  Low output ripple and noise  Distributed power architectures  High Reliability: o  Intermediate bus voltage applications Calculated MTBF = 15 M hours at 25 C Full-load  Output voltage programmable from 0.75 Vdc to 5.5  Telecommunications equipment Vdc via external resistor  Servers and storage applications  Line Regulation: 0.3% (typical)  Networking equipment  Load Regulation: 0.4% (typical)  Temperature Regulation: 0.4% (typical)  Remote On/Off  Remote Sense  Output overcurrent protection (non-latching)  Overtemperature protection  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 The ATL010A0X43-SR power modules are non-isolated dc-dc converters that can deliver up to 10A of output current with full load efficiency of 93% at 3.3V output. These modules provide a precisely regulated output voltage programmable via an external resistor from 0.75Vdc to 5.5Vdc over a wide range of input voltage (VIN = 9 – 18Vdc). The ATL010A0X43-SR series has TM a sequencing feature, EZ-SEQUENCE that enables 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. In addition to sequencing, standard features include remote On/Off, remote sense, output voltage adjustment, over current and over temperature protection. * 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 6, 2015 ©2015 General Electric Company. All rights reserved. Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A 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 V -0.3 18 Vdc IN Continuous Sequencing Voltage All V -0.3 V Vdc SEQ iN, Max 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 V 9.0 12.0 18.0 Vdc IN Maximum Input Current All IIN,max 7.0 Adc (VIN= VIN, min to VIN, max, IO=IO, max VO,set = 5.5Vdc) Input No Load Current VO,set = 0.75 Vdc IIN,No load 40 mA (VIN = 12.0Vdc, IO = 0, module enabled) VO,set = 5.0Vdc IIN,No load 100 mA Input Stand-by Current All I 2.0 mA IN,stand-by (VIN = 12.0Vdc, module disabled) 2 2 Inrush Transient All I t 0.4 A s Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN, min to VIN, All 20 mAp-p I = I ; See Test configuration section) max, O Omax Input Ripple Rejection (120Hz) All 30 dB CAUTION: These power modules can be used in a wide variety of applications ranging from simple standalone operation to an integrated part of sophisticated power architectures. To preserve maximum flexibility, no internal fuse has been provided. Also, extensive safety testing has shown that no external fuse is required to protect the unit. However, it is still recommended that some type of current-limiting power source be used to protect the module and evaluated in the end-use equipment. October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 2 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Output Voltage Set-point All V –2.0 +2.0 % V O, set  O, set (VIN=IN, min, IO=IO, max, TA=25°C) Output Voltage All V –2.5% +3.5% % V O, set  O, set (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range All VO 0.7525 5.5 Vdc Selected by an external resistor Output Regulation Line (V =V to V ) All 0.3 % V IN IN, min IN, max  O, set Load (I =I to I ) All 0.4 % V O O, min O, max  O, set Temperature (T =T to T ) All 0.4 % 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 Cout = 1μF ceramic//10μFtantalum capacitors) RMS (5Hz to 20MHz bandwidth) All  12 30 mVrms Peak-to-Peak (5Hz to 20MHz bandwidth) All  30 75 mVpk-pk External Capacitance ESR ≥ 1 mΩ All CO, max   1000 μF ESR ≥ 10 mΩ All CO, max   5000 μF Output Current All I 0  10 Adc o Output Current Limit Inception (Hiccup Mode ) All I  200  % I O, lim o Output Short-Circuit Current All I 3 Adc O, s/c   (V ≤250mV) ( Hiccup Mode ) O V = O, set Efficiency η 81.0 % 0 75Vdc V = V , T =25°C V = 1.2Vdc η 87.5 % IN IN, nom A O, set I =I V = V V = 1.5Vdc η 89.0 % O O, max , O O,set O,set V = 1.8Vdc η 90.0 % O,set V = 2.5Vdc η 92.0 % O,set V = 3.3Vdc η 93.0 % O,set V = 5.0Vdc η 95.0 % O,set Switching Frequency All f sw  300  kHz Dynamic Load Response All V 200 mV (dIo/dt=2.5A/µs; VIN = VIN, nom; TA=25°C) pk   Load Change from Io= 50% to 100% of Io,max; 1μF ceramic// 10 μF tantalum Peak Deviation Settling Time (Vo<10% peak deviation) All t 25 s   µs All V 200 mV (dIo/dt=2.5A/µs; VIN = VIN, nom; TA=25°C) pk   Load Change from Io= 100% to 50%of Io,max: 1μF ceramic// 10 μF tantalum Peak Deviation Settling Time (Vo<10% peak deviation) All t 25 µs s   October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 3 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Dynamic Load Response All V 100 mV (dIo/dt=2.5A/µs; VIN = VIN, nom; TA=25°C) pk   Load Change from Io= 50% to 100% of Io,max; Co = 2x150 μF polymer capacitors Peak Deviation Settling Time (Vo<10% peak deviation) All ts  25  µs (dIo/dt=2.5A/µs; VIN = VIN, nom; TA=25°C) All Vpk  100  mV 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  25  µs General Specifications Parameter Min Typ Max Unit Calculated MTBF (VIN= VIN, nom, IO= IO, max, TA=40°C) Telecordia SR 332 15,618,000 Hours Issue 1: Method 1, case 3 Weight  5.6 (0.2)  g (oz.) October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 4 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A 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 ― VIN,max Vdc 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 (IO=IO, max , VIN = VIN, nom, TA = 25 C, ) All Tdelay 3 msec Case 1: On/Off input is set to Logic Low (Module 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) Output voltage overshoot – Startup ― 1 % VO, set o I = I ; V = 9.0 to 18Vdc, T = 25 C O O, max IN A Sequencing Delay time Delay from V to application of voltage on SEQ pin All TsEQ-delay 10 msec IN, min Tracking Accuracy (Power-Up: 2V/ms) All VSEQ –Vo 100 200 mV (Power-Down: 1V/ms) All VSEQ –Vo 300 500 mV (V to V ; I to I VSEQ < Vo) IN, min IN, max O, min O, max Remote Sense Range All ― ― 0.5 V Overtemperature Protection All T 125 °C ref   (See Thermal Consideration section) Input Undervoltage Lockout Turn-on Threshold All  8.2  V Turn-off Threshold All 8.0 V   October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 5 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Characteristic Curves The following figures provide typical characteristics for the ATL010A0X43-SR modules at 25ºC. 95 95 Vin = 9 V 90 90 Vin = 9 V 85 85 Vin = 14 V 80 80 Vin = 18 V Vin = 18 V Vin = 14 V 75 75 70 70 0 2 4 6 8 10 0 2 4 6 8 10 OUTPUT CURRENT, I (A) OUTPUT CURRENT, I (A) O O Figure 1. Converter Efficiency versus Output Current (Vout Figure 4. Converter Efficiency versus Output Current (Vout =1.2Vdc). = 2.5Vdc). 95 95 Vin = 9 V 90 90 Vin = 9 V 85 85 Vin = 14 V Vin = 18 V 80 80 Vin = 18 V Vin = 14 V 75 75 70 70 0 2 4 6 8 10 0 2 4 6 8 10 OUTPUT CURRENT, I (A) OUTPUT CURRENT, I (A) O O Figure 2. Converter Efficiency versus Output Current (Vout Figure 5. Converter Efficiency versus Output Current (Vout = 1.5Vdc). = 3.3Vdc). 95 100 Vin = 9 V 90 95 90 85 Vin=9V Vin=14V Vin = 18 V Vin = 14 V 85 Vin=18V 80 80 75 75 70 70 0 2 4 6 8 10 0 2 4 6 8 10 OUTPUT CURRENT, I (A) OUTPUT CURRENT, I (A) O O Figure3. Converter Efficiency versus Output Current (Vout Figure 6. Converter Efficiency versus Output Current (Vout = 1.8Vdc). = 5.0Vdc). October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 6 EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Characteristic Curves (continued) The following figures provide typical characteristics for the ATL010A0X43-SR modules at 25ºC. 5 4 Io=10A 3 Io=5A 2 Io=0A 1 0 8 10 12 14 16 18 INPUT VOLTAGE, VIN (V) 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 = 3.3Vdc). 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 = 12.0V dc, Vo = 2.5 Vdc, Io=10A). 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 = 3.3 Vdc, Cext = 2x150 (Vin = 12.0V dc, Vo = 5.0 Vdc, Io=10A). μF Polymer Capacitors). October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 7 OUTPUT VOLTAGE OUTPUT VOLTAGE V (V) (20mV/div) V (V) (20mV/div) INPUT CURRENT, IIN (A) O O OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE I (A) (2A/div) V (V) (100mV/div) I (A) (2A/div) V (V) (200mV/div) I (A) (2A/div) V (V) (200mV/div) O O O O O O Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Characteristic Curves (continued) The following figures provide typical characteristics for the ATL010A0X43-SR modules at 25ºC. TIME, t (2 ms/div) TIME, t (10µs/div) Figure 13. Transient Response to Dynamic Load Change Figure 16. Typical Start-Up with application of Vin with low- from 100% of 50% full load (Vo = 3.3 Vdc, Cext = 2x150 μF ESR polymer capacitors at the output (7x150 μF) (Vin = Polymer Capacitors). 12Vdc, Vo = 5.0Vdc, Io = 10A, Co = 1050 μF) TIME, t (1 ms/div) TIME, t (2 ms/div) Figure 14. Typical Start-Up Using Remote On/Off (Vin = Figure 17 Typical Start-Up Using Remote On/Off with 12.0Vdc, Vo = 5.0Vdc, Io = 10.0A). Prebias (Vin = 12.0Vdc, Vo = 2.5Vdc, Io = 1.0A, Vbias =1.2Vdc). TIME, t (1 ms/div) TIME, t (10ms/div) Figure 15. Typical Start-Up Using Remote On/Off with Low- Figure 18. Output short circuit Current (Vin = 12.0Vdc, Vo = 0.75Vdc). ESR external capacitors (Co= 5000µF) (Vin = 12.0Vdc, Vo = 5.0Vdc, Io = 10.0A, Co = 1050µF). October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 8 OUTPUT VOLTAGE On/Off VOLTAGE OUTPUT VOLTAGE On/Off VOLTAGE OUTPUT CURRENT, OUTPUTVOLTAGE V (2V/div) V (V) (5V/div) V V) (1V/div) V (V) (5V/div) I (A) (2A/div) V (V) (100mV/div) O On/off O On/off O O OUTPUT CURRENT, OUTPUT VOLTAGE On/Off VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE I (A) (10A/div) V V) (1V/div) V (V) (2V/div) V (V) (2V/div) V (V) (5V/div) O O On/off o IN Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Characteristic Curves (continued) The following figures provide thermal derating curves for ATL010A0X43-SR modules. 12 12 10 10 8 8 1m/s (200LFM) 0.5m/s (100LFM) 6 6 0.5m/s (100LFM) NC 4 4 NC 2 2 0 0 0 20 40 60 80 100 0 20 40 60 80 100 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 = 14.0 Vdc, Vo=0.75Vdc). Temperature and Airflow (Vin = 14.0 Vdc, Vo=5.0 Vdc). 12 10 8 1m/s (200LFM) 0.5m/s (100LFM) 6 NC 4 2 0 0 20 40 60 80 100 O AMBIENT TEMPERATURE, TA C Figure 20. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 14.0Vdc, Vo=1.8 Vdc). 12 10 1m/s (200LFM) 8 0.5m/s (100LFM) 6 NC 4 2 0 0 20 40 60 80 100 O AMBIENT TEMPERATURE, T C A Figure 21. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 14.0Vdc, Vo=3.3 Vdc). October 6, 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) Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Test Configurations Design Considerations Input Filtering CURRENT PROBE TO OSCILLOSCOPE The ATL010A0X43-SR module should be connected to a low- LTEST impedance source. A highly inductive source can affect the VIN(+) 1μH stability of the module. An input capacitance must be placed directly adjacent to the input pin of the module, to minimize C input ripple voltage and ensure module stability. IN C 1000μF S Electrolytic 2x100μF E.S.R.<0.1Ω Tantalum @ 20°C 100kHz In a typical application, 4x47 µF low-ESR tantalum capacitors (AVX part #: TPSE476M025R0100, 47µF 25V 100 mΩ ESR COM tantalum capacitor) will be sufficient to provide adequate ripple voltage at the input of the module. To minimize ripple voltage NOTE: Measure input reflected ripple current with a simulated source inductance (L ) of 1μH. Capacitor C offsets TEST S at the input, low ESR ceramic capacitors are recommended at possible battery impedance. Measure current as shown the input of the module. Figure 26 shows input ripple voltage above. (mVp-p) for various outputs with 4x47 µF tantalum capacitors Figure 23. Input Reflected Ripple Current Test Setup. and with 4x22 µF ceramic capacitor (TDK part #: C4532X5R1C226M) at full load. COPPER STRIP 300 V (+) RESISTIVE O LOAD 250 1uF . 10uF SCOPE 200 COM 150 GROUND PLANE 100 NOTE: All voltage measurements to be taken at the module terminals, as shown above. If sockets are used then Tantalum Kelvin connections are required at the module terminals 50 to avoid measurement errors due to socket contact resistance. Ceramic 0 Figure 24. Output Ripple and Noise Test Setup. 0 1 2 3 4 5 6 Output Voltage (Vdc) Rdistribution Rcontact Rcontact Rdistribution Figure 26. Input ripple voltage for various output with 4x22 VIN(+) VO µF polymer and 4x47 µF ceramic capacitors at the input (full load). RLOAD V V IN O R R R R distribution contact contact distribution 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 25. Output Voltage and Efficiency Test Setup. V . I O O Efficiency = x 100 % η V . I IN IN October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 10 BATTERY Input Ripple Voltage (mVp-p) Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Design Considerations (continued) Safety Considerations For safety agency approval the power module must be Output Filtering installed in compliance with the spacing and separation The ATL010A0X43-SR module is designed for low output ripple requirements of the end-use safety agency standards, i.e., UL voltage and will meet the maximum output ripple specification 60950-1, CSA C22.2 No. 60950-1-03, and VDE 0850:2001-12 with 1 µF ceramic and 10 µF tantalum capacitors at the output (EN60950-1) Licensed. of the module. However, additional output filtering may be required by the system designer for a number of reasons. First, For the converter output to be considered meeting the there may be a need to further reduce the output ripple and requirements of safety extra-low voltage (SELV), the input must noise of the module. Second, the dynamic response meet SELV requirements. The power module has extra-low characteristics may need to be customized to a particular load voltage (ELV) outputs when all inputs are ELV. step change. 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 6, 2015 ©2015 General Electric Company. All rights reserved. Page 11 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current o exceeds 125 C (typical), but the thermal shutdown is not Feature Description intended as a guarantee that the unit will survive temperatures Remote On/Off beyond its rating. The module will automatically restart after it cools down. The ATL010A0X43-SR power modules feature an On/Off pin for Output Voltage Programming remote On/Off operation. The ATL010A0X43-SR modules feature positive on/off logic. Positive Logic On/Off signal, turns The output voltage of the ATL010A0X43-SR module can be the module ON during a logic High on the On/Off pin and turns programmed to any voltage from 0.75Vdc to 5.0Vdc by the module OFF during a logic Low. connecting a resistor (shown as Rtrim in Figure 28) between Trim and GND pins of the module. Without an external resistor For positive logic modules, the circuit configuration for using between Trim and GND pins, the output of the module will be the On/Off pin is shown in Figure 27. The On/Off pin is an open 0.7525Vdc. To calculate the value of the trim resistor, Rtrim for collector/drain logic input signal (Von/Off) that is referenced to a desired output voltage, use the following equation: ground. During a logic-high (On/Off pin is pulled high internal to the module) when the transistor Q1 is in the Off state, the  10500  power module is ON. Maximum allowable leakage current of Rtrim= −1000Ω   the transistor when Von/off = V is 10µA. Applying a logic- IN,max Vo− 0.7525   low when the transistor Q1 is turned-On, the power module is Rtrim is the external resistor in Ω OFF. During this state VOn/Off must be less than 0.3V. When not using positive logic On/off pin, leave the pin unconnected Vo is the desired output voltage or tie to V IN. For example, to program the output voltage of the ATL010A0X43-SR module to 1.8V, Rtrim is calculated as follows: VIN+ MODULE  10500  R2 Rtrim= −1000   1.8− 0.75   ON/OFF Q2 Rtrim= 9.024kΩ + R1 V ON/OFF I ON/OFF PWM Enable Vout V (+) V (+) IN O R3 Q1 Q3 CSS ON/OFF LOAD TRIM R4 GND _ R trim GND Figure 27. Remote On/Off Implementation. Overcurrent Protection Figure 28. Circuit configuration for programming output To provide protection in a fault (output overload) condition, the voltage using an external resistor. 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. The typical average output current during hiccup is 3 A. Input Undervoltage Lockout At input voltages below the input undervoltage lockout limit, module operation is disabled. The module will begin to operate at an input voltage above the undervoltage lockout turn-on threshold. Overtemperature Protection To provide over temperature protection in a fault condition, the unit relies upon the thermal protection feature of the controller IC. The unit will shutdown if the thermal reference point Tref, October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 12 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Feature Descriptions (continued) Vo Table 1 provides Rtrim values required for some common Rmargin-down output voltages Austin Lynx or Lynx II Series Table 1 Q2 V (V) Rtrim (KΩ) O, set Trim 0.7525 Open Rmargin-up 1.2 22.46 1.5 13.05 Rtrim 1.8 9.024 2.5 5.009 Q1 3.3 3.122 GND 5.0 1.472 Figure 29. Circuit Configuration for margining Output By using a 1% tolerance trim resistor, set point tolerance of voltage. ±2% is achieved as specified in the electrical specification. The POL Programming Tool, available at www.gecriticalpower.com under the Design Tools section, helps determine the required external trim resistor needed for a specific output voltage. The amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the output current. When using the trim feature, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power (Pmax = V x I ). o,set o,max Voltage Margining Output voltage margining can be implemented in the ATL010A0X43-SR module series by connecting a resistor, R , from the Trim pin to the ground pin for margining-up margin-up the output voltage and by connecting a resistor, Rmargin-down, from the Trim pin to the Output pin for margining-down. Figure 30 shows the circuit configuration for output voltage margining. The POL Programming Tool, available at www.gecriticalpower.com under the Design Tools section, also and R for a specific calculates the values of Rmargin-up margin-down output voltage and % margin. Please consult your local GE technical representative for additional details. October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 13 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current using Remote Sense, the output voltage of the module can Feature Descriptions (continued) increase, which if the same output is maintained, increases the Voltage Sequencing power output by the module. Make sure that the maximum output power of the module remains at or below the maximum The ATL010A0X43-SR series of modules include a sequencing rated power. When the Remote Sense feature is not being TM feature, EZ-SEQUENCE that enables users to implement used, connect the Remote Sense pin to the output pin. various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When not using the sequencing feature, either R R R R distribution contact contact distribution V (+) V IN O tie the SEQ pin to VIN or leave it unconnected. Sense R When an analog voltage is applied to the SEQ pin, the output LOAD voltage tracks this voltage until the output reaches the set- point voltage. The SEQ voltage must be set higher than the R R R R distribution contact contact distribution COM COM 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 Figure 30. Remote sense circuit configuration 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. 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-up. When TM 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 TM during start-up is required, the EZ-SEQUENCE feature must be disabled. For additional guidelines on using EZ- TM TM SEQUENCE feature of Austin Lynx II, contact the GE technical representative for preliminary application note on output voltage sequencing using Austin Lynx II series. Remote Sense The ATL010A0X43-SR power modules have a Remote Sense feature to minimize the effects of distribution losses by regulating the voltage at the Remote Sense pin (See Figure 30). The voltage between the Sense pin and Vo pin must not exceed 0.5V. The amount of power delivered by the module is defined as the output voltage multiplied by the output current (Vo x Io). When October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 14 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Thermal Considerations Power modules operate in a variety of thermal environments; however sufficient cooling should always be provided to help ensure reliable operation. 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 32. Note that the airflow is parallel to the short axis of the module as shown in figure 31. The derating data applies to airflow in either direction of the module’s short axis. Figure 32. Thermal Test Set-up. Figure 31. Temperature measurement locations T and ref1 Heat Transfer via Convection Tref2. Increased airflow over the module enhances the heat transfer via convection. Thermal derating curves showing the The thermal reference points, Tref1 and Tref2 used in the maximum output current that can be delivered at different specifications are shown in Figure 31. For reliable operation local ambient temperatures (T ) for airflow conditions ranging o A these temperatures should not exceed 115 C. from natural convection and up to 2m/s (400 ft./min) are The output power of the module should not exceed the rated shown in the Characteristics Curves section. power of the module (Vo,set x Io,max). Layout Considerations Please refer to the Application Note “Thermal Characterization Process For Open-Frame Board-Mounted Power Modules” for a Copper paths must not be routed beneath the power module. For additional layout guide-lines, refer to the FLTR100V10 detailed discussion of thermal aspects including maximum device temperatures. application note. October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 15 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A 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 Co-planarity (max): 0.20 [0.008] Side View Bottom View PIN FUNCTION 1 On/Off 2 VIN 3 SEQ 4 GND 5 VOUT 6 Trim 7 Sense MPS176595 October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 16 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A 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.) October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 17 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Packaging Details The ATL010A0X43-SR modules are supplied in tape & reel as standard. Modules are shipped in quantities of 250 modules per reel. All Dimensions are in millimeters and (in inches). Reel Dimensions: Outside Dimensions: 330.2 mm (13.00) Inside Dimensions: 177.8 mm (7.00”) Tape Width: 44.00 mm (1.732”) October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 18 Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Surface Mount Information time must be allowed to fuse the plating on the connection Pick and Place to ensure a reliable solder joint. There are several types of The ATL010A0X43-SR modules use an open frame SMT reflow technologies currently used in the industry. construction and are designed for a fully automated These surface mount power modules can be reliably assembly process. The modules are fitted with a label soldered using natural forced convection, IR (radiant designed to provide a large surface area for pick and place infrared), or a combination of convection/IR. For reliable operations. The label meets all the requirements for surface soldering the solder reflow profile should be established by mount processing, as well as safety standards, and is able to accurately measuring the modules CP connector o withstand reflow temperatures of up to 300 C. The label temperatures. also carries product information such as product code, serial number and the location of manufacture. REFLOW TIME (S) Figure 34. Reflow Profile for Tin/Lead (Sn/Pb) process. Figure 33. Pick and Place Location. Nozzle Recommendations The module weight has been kept to a minimum by 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 placement speed should be considered to optimize this process. The minimum recommended nozzle diameter for reliable operation is 6mm. The maximum nozzle outer diameter, which will safely fit within the allowable component spacing, is 9 mm. Oblong or oval nozzles up to 11 x 9 mm may also be used within the space available. o Figure 35. Time Limit Curve Above 205 C for Tin/Lead (Sn/Pb) process. Tin Lead Soldering The ATL010A0X43-SR power modules are lead free modules and can be soldered either in a lead-free solder process or in a conventional Tin/Lead (Sn/Pb) process. It is recommended that the customer review data sheets in order to customize the solder reflow profile for each application board assembly. The following instructions must be observed when soldering these units. Failure to observe these instructions may result in the failure of or cause damage to the modules, and can adversely affect long-term reliability. In a conventional Tin/Lead (Sn/Pb) solder process peak o reflow temperatures are limited to less than 235 C. o Typically, the eutectic solder melts at 183 C, wets the land, and subsequently wicks the device connection. Sufficient October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 19 MAX TEMP SOLDER (°C) REFLOW TEMP (°C) Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Surface Mount Information (continued) 300 Per J-STD-020 Rev. C Lead Free Soldering Peak Temp 260°C 250 The –Z version ATL series SMT modules are lead-free (Pb- Cooling free) and RoHS compliant and are both forward and 200 Zone * Min. Time Above 235°C backward compatible in a Pb-free and a SnPb soldering 15 Seconds process. Failure to observe the instructions below may 150 Heating Zone *Time Above 217°C result in the failure of or cause damage to the modules and 1°C/Second 60 Seconds 100 can adversely affect long-term reliability. 50 Pb-free Reflow Profile 0 Reflow Time (Seconds) Power Systems will comply with J-STD-020 Rev. C (Moisture/Reflow Sensitivity Classification for Nonhermetic Figure 36. Recommended linear reflow profile using Solid State Surface Mount Devices) for both Pb-free solder Sn/Ag/Cu solder. profiles and MSL classification procedures. This standard provides 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). The recommended linear reflow profile using Sn/Ag/Cu solder is shown in Fig. 36. MSL Rating The ATL010A0X43-SR module has an MSL rating of 2a. Storage and Handling The recommended storage environment and handling procedures for moisture-sensitive surface mount packages is detailed in J-STD-033 Rev. A (Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface Mount Devices). Moisture barrier bags (MBB) with desiccant are required for MSL ratings of 2 or greater. These sealed packages 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 varies according to the MSL rating (see J-STD-033A). The shelf life for dry packed SMT packages will be a minimum of 12 months from the bag seal date, when stored at the following conditions: < 40° C, < 90% relative humidity. 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 (AN04-001). October 6, 2015 ©2015 General Electric Company. All rights reserved. Page 20 Reflow Temp (°C) Data Sheet GE ATL010A0X43-SR: 12V SMT Non-Isolated DC-DC Power Modules 9Vdc – 18Vdc input; 0.75Vdc to 5.5Vdc output; 10A Output Current Ordering Information Please contact your GE Sales Representative for pricing, availability and optional features. Table 2. Device Codes Input Connector Voltage Efficiency On/Off Comcode Output Output Type Device Code Range 3.3V@ 10A Logic Voltage Current ATL010A0X43-SR 9 – 18Vdc 0.75 – 5.5Vdc 10 A Positive SMT 108996154 93.0% ATL010A0X43-SRZ 9 – 18Vdc 0.75 – 5.5Vdc 10 A Positive SMT CC109107851 93.0% -Z refers to RoHS-compliant codes 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 6, 2015 ©2015 General Electric Company. All International rights reserved. Version 1.24