Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Features  Compliant to RoHS EU Directive 2011/65/EU (-Z versions) RoHS Compliant  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)  Delivers up to 16A of output current  High efficiency – 95% at 3.3V full load (V = 5.0V) 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)  Low output ripple and noise  High Reliability: o  Calculated MTBF > 6.8M hours at 25 C Full-load  Output voltage programmable from 0.75 Vdc to 3.63Vdc Applications via external resistor  Distributed power architectures  Line Regulation: 0.3% (typical)  Intermediate bus voltage applications  Load Regulation: 0.4% (typical)  Temperature Regulation: 0.4% (typical)  Telecommunications equipment  Remote On/Off  Servers and storage applications  Remote Sense  Networking equipment  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 TM Austin SuperLynx SMT (surface mount technology) power modules are non-isolated dc-dc converters that can deliver up to 16A of output current with full load efficiency of 95% at 3.3V output. These modules provide a precisely regulated output voltage programmable via external resistor from 0.75Vdc to 3.63Vdc over a wide range of input voltage (VIN = 3.0 – 5.5Vdc). Their open-frame construction and small footprint enable designers to develop cost- and space-efficient solutions. Standard features include remote On/Off, remote sense, programmable output voltage, overcurrent and overtemperature 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 January 20, 2016 ©2016 General Electric Company. All rights reserved. Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A 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 5.8 Vdc Continuous Operating Ambient Temperature All TA -40 85 °C (see Thermal Considerations section) Storage Temperature All Tstg -55 125 °C 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 ≤ VIN – 0.5V VIN 3.0  5.5 Vdc Maximum Input Current All IIN,max 16.0 Adc (VIN= VIN, min to VIN, max, IO=IO, max VO,set = 3.3Vdc) Input No Load Current V = 0.75 Vdc I 70 mA O,set IN,No load (V = 5.0Vdc, I = 0, module enabled) V = 3.3Vdc I 70 mA IN O O,set IN,No load Input Stand-by Current All IIN,stand-by 1.5 mA (V = 5.0Vdc, module disabled) IN 2 2 Inrush Transient All I t 0.1 A s Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; V to V All 100 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 20A (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. January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 2 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A 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 –3% +3% % 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 3.63 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  8 15 mVrms Peak-to-Peak (5Hz to 20MHz bandwidth) All  25 50 mVpk-pk External Capacitance ESR ≥ 1 mΩ All CO, max   1000 μF ESR ≥ 10 mΩ All CO, max   3000 μF Output Current All I 0  16 Adc o Output Current Limit Inception (Hiccup Mode ) All I  180  % I O, lim o Output Short-Circuit Current All I 3.5 Adc O, s/c   (V ≤250mV) ( Hiccup Mode ) O Efficiency VO,set = 0.75Vdc η 82.0 % V = V , T =25°C V = 1.2Vdc η 87.0 % 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 92.5 % O,set V = 3.3Vdc η 95.0 % O,set Switching Frequency All fsw  300  kHz Dynamic Load Response All V 300 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 300 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   January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 3 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Dynamic Load Response All V 150 mV (dIo/dt=2.5A/µs; V 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  100  µs (dIo/dt=2.5A/µs; VIN = VIN, nom; TA=25°C) All Vpk  150  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  100  µs General Specifications Parameter Min Typ Max Unit Calculated MTBF (IO=IO, max, TA=25°C) 6, 800,000 Hours Weight  5.6 (0.2)  g (oz.) January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 4 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A 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 Remote On/Off Signal interface (V =V to V ; Open collector pnp or equivalent IN IN, min IN, max Compatible, Von/off signal referenced to GND See feature description section) Input High Voltage (Module ON) All VIH ― ― VIN, max V 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 Turn-On Delay and Rise Times o (IO=IO, max , VIN = VIN, nom, TA = 25 C, ) All Tdelay 3.9 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 3.9 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 ― 4.2 8,5 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 I = I ; V = 3.0 to 5.5Vdc, T = 25 C O O, max IN A Overtemperature Protection All T 125 °C ref   (See Thermal Consideration section) Input Undervoltage Lockout Turn-on Threshold All  2.2  V Turn-off Threshold All  2.0  V January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 5 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Characteristic Curves TM The following figures provide typical characteristics for the Austin SuperLynx SMT modules at 25ºC. 90 96 93 87 90 84 87 81 84 IN V = 3.0V 81 78 IN V = 3.0V 78 VIN = 5.0V IN V = 5.0V 75 75 IN IN V = 5.5V V = 5.5V 72 72 0 4 8 12 16 0 4 8 12 16 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 = = 0.75Vdc). 1.8Vdc). 93 100 97 90 94 87 91 84 88 85 81 IN V = 3.0V 82 78 IN V = 3.0V VIN = 5.0V 79 IN V = 5.0V 75 76 VIN = 5.5V IN V = 5.5V 72 73 0 4 8 12 16 0 4 8 12 16 OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A) Figure 2. Converter Efficiency versus Output Current (Vout Figure 5. Converter Efficiency versus Output Current (Vout = 1.2Vdc). = 2.5Vdc). 94 100 91 97 88 94 85 91 82 88 79 85 VIN = 3.0V IN V = 4.5V 76 82 IN VIN = 5.0V V = 5.0V 73 79 VIN = 5.5V IN V = 5.5V 70 76 0 4 8 12 16 0 4 8 12 16 OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A) Figure3. Converter Efficiency versus Output Current (Vout = Figure 6. Converter Efficiency versus Output Current (Vout = 1.5Vdc). 3.3Vdc). January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 6 EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) EFFICIENCY, η (%) Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Characteristic Curves (continued) TM The following figures provide typical characteristics for the Austin SuperLynx SMT modules at 25ºC. 18 Io=0A 16 Io=8A 14 Io=16A 12 10 8 6 4 2 0 0.5 1.5 2.5 3.5 4.5 5.5 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 = 2.5Vdc). 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 = 5.0V dc, Vo = 0.75 Vdc, Io=16A). 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 = 5.0V dc, Vo = 3.3 Vdc, Io=16A). μF Polymer Capacitors). January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 7 INPUT CURRENT, I (A) VO (V) (20mV/div) VO (V) (20mV/div) IN OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE IO (A) (5A/div) VO (V) (200mV/div) IO (A) (5A/div) VO (V) (200mV/div) IO (A) (5A/div) VO (V) (200mV/div) Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Characteristic Curves (continued) TM The following figures provide typical characteristics for the Austin SuperLynx SMT 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 from 100% of 50% full load (Vo = 5.0 Vdc, Cext = 2x150 μF (Vin = 5.0Vdc, Vo = 3.3Vdc, Io = 16A). Polymer Capacitors). TIME, t (2 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 5.0Vdc, Vo = 3.3Vdc, Io = 16.0A). Prebias (Vin = 3.3Vdc, Vo = 1.8Vdc, Io = 1.0A, Vbias =1.0Vdc). TIME, t (2 ms/div) TIME, t (1 0ms/div) Figure 15. Typical Start-Up Using Remote On/Off with Low- Figure 18. Output short circuit Current (Vin = 5.0Vdc, Vo = ESR external capacitors (Vin = 5.5Vdc, Vo = 3.3Vdc, Io = 0.75Vdc). 16.0A, Co = 1050µF). January 20, 2016 ©2016 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) (1V/div) VOn/off (V) (2V/div) IO (A) (5A/div) VO (V) (200mV/div) 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) (1V/div) V (V) (2V/div) O O On/off O NN Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Characteristic Curves (continued) TM The following figures provide thermal derating curves for the Austin SuperLynx SMT modules. 18 18 16 16 14 14 12 12 10 10 NC NC 8 8 100 LFM 100 LFM 6 6 200 LFM 200 LFM 4 4 300 LFM 300 LFM 2 2 400 LFM 400 LFM 0 0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 O O AMBIENT TEMPERATURE, T C AMBIENT TEMPERATURE, T C A A Figure 19. Derating Output Current versus Local Ambient Figure 22. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 5.0, Vo=3.3Vdc). Temperature and Airflow (Vin = 3.3dc, Vo=0.75 Vdc). 18 16 14 12 10 NC 8 100 LFM 6 200 LFM 4 300 LFM 2 400 LFM 0 20 30 40 50 60 70 80 90 O AMBIENT TEMPERATURE, T C A Figure 20. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 5.0Vdc, Vo=0.75 Vdc). 18 16 14 12 10 NC 8 100 LFM 6 200 LFM 4 300 LFM 2 400 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 = 3.3Vdc, Vo=2.5 Vdc). January 20, 2016 ©2016 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 TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Test Configurations Design Considerations Input Filtering CURRENT PROBE TO OSCILLOSCOPE TM The Austin SuperLynx SMT module should be connected to a LTEST low-impedance source. A highly inductive source can affect VIN(+) 1μH the stability of the module. An input capacitance must be placed directly adjacent to the input pin of the module, to C minimize input ripple voltage and ensure module stability. IN C 1000μF S Electrolytic 2x100μF E.S.R.<0.1Ω Tantalum @ 20°C 100kHz To minimize input voltage ripple, low-ESR polymer and ceramic capacitors are recommended at the input of the module. COM Figure 26 shows the input ripple voltage (mVp-p) for various outputs with 1x150 µF polymer capacitors (Panasonic p/n: NOTE: Measure input reflected ripple current with a simulated source inductance (L ) of 1μH. Capacitor C offsets TEST S EEFUE0J151R, Sanyo p/n: 6TPE150M) in parallel with 1 x 47 µF possible battery impedance. Measure current as shown ceramic capacitor (Panasonic p/n: ECJ-5YB0J476M, Taiyo- above. Yuden p/n: CEJMK432BJ476MMT) at full load. Figure 27 shows Figure 23. Input Reflected Ripple Current Test Setup. the input ripple with 2x150 µF polymer capacitors in parallel with 2 x 47 µF ceramic capacitor at full load. COPPER STRIP 400 V (+) RESISTIVE O 350 LOAD 300 1uF . 10uF SCOPE 250 COM 200 150 GROUND PLANE 3.3Vin NOTE: All voltage measurements to be taken at the module 100 terminals, as shown above. If sockets are used then Kelvin connections are required at the module terminals 5Vin 50 to avoid measurement errors due to socket contact resistance. 0 Figure 24. Output Ripple and Noise Test Setup. 0 0.5 1 1.5 2 2.5 3 3.5 Output Voltage (Vdc) Rdistribution Rcontact Rcontact Rdistribution Figure 26. Input ripple voltage for various output with 1x150 VIN(+) VO µF polymer and 1x47 µF ceramic capacitors at the input (full load). RLOAD V V IN O 250 200 R R R R distribution contact contact distribution COM COM 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 3.3Vin resistance. 50 5Vin Figure 25. Output Voltage and Efficiency Test Setup. 0 0 0.5 1 1.5 2 2.5 3 3.5 V . I O O Efficiency = x 100 % η Output Voltage (Vdc) V . I IN IN Figure 27. Input ripple voltage for various output with 2x150 µF polymer and 2x47 µF ceramic capacitors at the input (full load). January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 10 BATTERY Input Ripple Voltage (mVp-p) Input Ripple Voltage (mVp-p) Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A 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 TM The Austin SuperLynx SMT module is designed for low output requirements of the end-use safety agency standards, i.e., UL ripple voltage and will meet the maximum output ripple 60950-1, CSA C22.2 No. 60950-1-03, and VDE 0850:2001-12 specification with 1 µF ceramic and 10 µF tantalum capacitors (EN60950-1) Licensed. at the output of the module. However, additional output filtering may be required by the system designer for a number For the converter output to be considered meeting the of reasons. First, there may be a need to further reduce the requirements of safety extra-low voltage (SELV), the input must output ripple and noise of the module. Second, the dynamic meet SELV requirements. The power module has extra-low response characteristics may need to be customized to a voltage (ELV) outputs when all inputs are ELV. particular load step change. The input to these units is to be provided with a fast-acting fuse with a maximum rating of 20A 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. January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 11 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Output Voltage Programming Feature Description TM The output voltage of the Austin SuperLynx SMT can be Remote On/Off programmed to any voltage from 0.75 Vdc to 3.63 Vdc by TM The Austin SuperLynx SMT power modules feature an On/Off connecting a single resistor (shown as Rtrim in Figure 29) pin for remote On/Off operation of the module. The circuit between the TRIM and GND pins of the module. Without an configuration for using the On/Off pin is shown in Figure 28. external resistor between TRIM pin and the ground, the output The On/Off pin is an open collector/drain logic input signal voltage of the module is 0.7525 Vdc. To calculate the value of (Von/Off) that is referenced to ground. During a logic-high the resistor Rtrim for a particular output voltage Vo, use the (On/Off pin is pulled high internal to the module) when the following equation: transistor Q1 is in the Off state, the power module is ON. 21070   Maximum allowable leakage current of the transistor when Rtrim= − 5110Ω   Von/off = VIN,max is 10µA. Applying a logic-low when the Vo− 0.7525   transistor Q1 is turned-On, the power module is OFF. During this state VOn/Off must be less than 0.3V. When not using positive logic On/off pin, leave the pin unconnected or tie to V IN. For example, to program the output voltage of the Austin TM SuperLynx module to 1.8 Vdc, Rtrim is calculated is follows: VIN+ MODULE  21070  Rtrim= − 5110 R2   1.8− 0.7525   ON/OFF Rtrim= 15.004kΩ Q2 + R1 V ON/OFF Vout I ON/OFF PWM Enable V (+) V (+) IN O R3 Q1 ON/OFF Q3 CSS LOAD TRIM R4 R trim GND _ GND Figure 28. Remote On/Off Implementation. Figure 29. Circuit configuration for programming output Overcurrent Protection voltage using an external resistor. To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting circuitry and can TM The Austin SuperLynx can also be programmed by applying a endure current limiting continuously. At the point of voltage between the TRIM and the GND pins (Figure 30). The current-limit inception, the unit enters hiccup mode. The unit following equation can be used to determine the value of Vtrim operates normally once the output current is brought back into needed to obtain a desired output voltage Vo: its specified range. The typical average output current during hiccup is 3.5A. Vtrim=(0.7− 0.1698×{Vo− 0.7525}) TM For example, to program the output voltage of a SuperLynx Input Undervoltage Lockout module to 3.3 Vdc, Vtrim is calculated as follows: At input voltages below the input undervoltage lockout limit, module operation is disabled. The module will begin to operate Vtrim= (0.7− 0.1698×{3.3− 0.7525}) at an input voltage above the undervoltage lockout turn-on Vtrim= 0.2670V 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, o exceeds 125 C (typical), but the thermal shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. The module will automatically restart after it cools down. January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 12 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current module remains at or below the maximum rated power (Pmax = Feature Descriptions (continued) V x I ). o,set o,max V (+) V (+) IN O Voltage Margining Output voltage margining can be implemented in the Austin TM SuperLynx modules by connecting a resistor, Rmargin-up, from ON/OFF LOAD the Trim pin to the ground pin for margining-up the output TRIM voltage and by connecting a resistor, Rmargin-down, from the Trim pin to the Output pin for margining-down. Figure 31 shows the + V tri m circuit configuration for output voltage margining. The POL - GND Programming Tool, available at www.gecriticalpower.com under the Design Tools section, also calculates the values of R and R for a specific output voltage and % margin-up margin-down margin. Please consult your local GE technical representative Figure 30. Circuit Configuration for programming Output for additional details. voltage using external voltage source. Vo Table 1 provides Rtrim values required for some common output voltages, while Table 2 provides values of the external Rmargin-down voltage source, Vtrim for the same common output voltages. Austin Lynx or Lynx II Series Table 1 Q2 V (V) Rtrim (KΩ) O, set 0.7525 Open Trim 1.2 41.973 Rmargin-up 1.5 23.077 Rtrim 1.8 15.004 2.5 6.947 Q1 3.3 3.160 GND Table 2 VO, set (V) Vtrim (V) Figure 31. Circuit Configuration for margining Output voltage. 0.7525 Open 1.2 0.6240 1.5 0.5731 1.8 0.5221 2.5 0.4033 3.3 0.2674 By using a 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, 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 January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 13 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Feature Descriptions (continued) Remote Sense TM The Austin SuperLynx SMT 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 32). 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 using Remote Sense, the output voltage of the module can increase, which if the same output is maintained, increases the power output by the module. Make sure that the maximum output power of the module remains at or below the maximum rated power. When the Remote Sense feature is not being used, connect the Remote Sense pin to the output pin. R R R R distribution contact contact distribution VIN(+) VO Sense R LOAD R R R R distribution contact contact distribution COM COM Figure 32. Remote sense circuit configuration January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 14 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current detailed discussion of thermal aspects including maximum Thermal Considerations device temperatures. Power modules operate in a variety of thermal environments; however, sufficient cooling should always be provided to help ensure reliable operation. 25.4_ Considerations include ambient temperature, airflow, module Wind Tunnel (1.0) power dissipation, and the need for increased reliability. A reduction in the operating temperature of the module will PWBs result in an increase in reliability. The thermal data presented Power Module here is based on physical measurements taken in a wind tunnel. The test set-up is shown in Figure 34. Note that the airflow is parallel to the short axis of the module as shown in figure 33. The derating data applies to airflow in either direction of the module’s short axis. 76.2_ (3.0) x Probe Loc ation for measuring 5.97_ airflow and (0.235) ambient temperature Air flow Figure 34. 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 at different local ambient temperatures (TA) for airflow conditions ranging from natural convection and up to 2m/s (400 ft./min) are shown in the Characteristics Curves section. Figure 33. T Temperature measurement location. ref Layout Considerations The thermal reference point, Tref used in the specifications is Copper paths must not be routed beneath the power module. shown in Figure 33. For reliable operation this temperature For additional layout guide-lines, refer to the FLTR100V10 o should not exceed 115 C. application note. 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 January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 15 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A 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.) January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 16 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A 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.) January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 17 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Packaging Details TM The Austin SuperLynx SMT version is 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”) January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 18 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Surface Mount Information Pick and Place Reflow Soldering Information TM TM The Austin SuperLynx SMT modules use an open frame The Austin SuperLynx SMT power modules are large mass, construction and are designed for a fully automated low thermal resistance devices and typically heat up slower assembly process. The modules are fitted with a label than other SMT components. It is recommended that the designed to provide a large surface area for pick and place customer review data sheets in order to customize the operations. The label meets all the requirements for surface solder reflow profile for each application board assembly. mount processing, as well as safety standards, and is able to The following instructions must be observed when soldering o withstand reflow temperatures of up to 300 C. The label these units. Failure to observe these instructions may result also carries product information such as product code, serial in the failure of or cause damage to the modules, and can number and the location of manufacture. adversely affect long-term reliability. o Typically, the eutectic solder melts at 183 C, wets the land, and subsequently wicks the device connection. Sufficient time must be allowed to fuse the plating on the connection to ensure a reliable solder joint. There are several types of SMT reflow technologies currently used in the industry. These surface mount power modules can be reliably soldered using natural forced convection, IR (radiant infrared), or a combination of convection/IR. For reliable soldering the solder reflow profile should be established by accurately measuring the modules pin temperatures. Figure 35. 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 Figure 36. Reflow Profile. 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. An example of a reflow profile (using 63/37 solder) for the TM Oblong or oval nozzles up to 11 x 9 mm may also be used Austin SuperLynx SMT power module is : o within the space available. • Pre-heating zone: room temperature to 183 C (2.0 to 4.0 minutes maximum) o • Initial ramp rate < 2.5 C per second o o • Soaking Zone: 155 C to 183 C – 60 to 90 seconds typical (2.0 minutes maximum) o o • Reflow zone ramp rate:1.3 C to 1.6 C per second o o • Reflow zone: 210 C to 235 C peak temperature – 30 to 60 seconds (90 seconds maximum January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 19 Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current These sealed packages should not be broken until time of Surface Mount Information (continued) use. Once the original package is broken, the floor life of Lead Free Soldering the product at conditions of ≤ 30°C and 60% relative humidity varies according to the MSL rating (see J-STD- The –Z version Austin SuperLynx SMT modules are lead-free 033A). The shelf life for dry packed SMT packages will be (Pb-free) and RoHS compliant and are both forward and a minimum of 12 months from the bag seal date, when backward compatible in a Pb-free and a SnPb soldering stored at the following conditions: < 40° C, < 90% relative process. Failure to observe the instructions below may humidity. result in the failure of or cause damage to the modules and can adversely affect long-term reliability. Post Solder Cleaning and Drying Considerations Pb-free Reflow Profile Post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. The result Power Systems will comply with J-STD-020 Rev. C of inadequate cleaning and drying can affect both the (Moisture/Reflow Sensitivity Classification for reliability of a power module and the testability of the Nonhermetic Solid State Surface Mount Devices) for both finished circuit-board assembly. For guidance on Pb-free solder profiles and MSL classification procedures. appropriate soldering, cleaning and drying procedures, refer This standard provides a recommended forced-air- to Board Mounted Power Modules: Soldering and Cleaning convection reflow profile based on the volume and Application Note (AN04-001). thickness of the package (table 4-2). The suggested Pb- free solder paste is Sn/Ag/Cu (SAC). The recommended 300 Per J-STD-020 Rev. C linear reflow profile using Sn/Ag/Cu solder is shown in Peak Temp 260°C Fig. 37. 250 Cooling 200 Zone * Min. Time Above 235°C MSL Rating 15 Seconds 150 Heating Zone *Time Above 217°C The Austin SuperLynx SMT modules have a MSL rating of 1°C/Second 60 Seconds 100 2a. 50 Storage and Handling 0 The recommended storage environment and handling Reflow Time (Seconds) procedures for moisture-sensitive surface mount packages is detailed in J-STD-033 Rev. A (Handling, Figure 37. Recommended linear reflow profile using Packing, Shipping and Use of Moisture/Reflow Sensitive Sn/Ag/Cu solder. Surface Mount Devices). Moisture barrier bags (MBB) with desiccant are required for MSL ratings of 2 or greater. January 20, 2016 ©2016 General Electric Company. All rights reserved. Page 20 Reflow Temp (°C) Data Sheet GE TM 16A Austin SuperLynx : Non-Isolated DC-DC Power Modules 3Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 16A Output Current Ordering Information Please contact your GE Sales Representative for pricing, availability and optional features. Table 3. Device Codes Output Efficiency Connector Product codes Input Voltage Output Voltage Comcodes Current 3.3V @ 16A Type 95.0% SMT AXH016A0X3-SR 3.0 – 5.5Vdc 0.75 – 3.63Vdc 16A 108979519 95.0% SMT AXH016A0X3-SRZ 3.0 – 5.5Vdc 0.75 – 3.63Vdc 16A 108995180 95.0% SMT AXH016A0X3-SR12* 3.0 – 5.5Vdc 0.75 – 3.63Vdc 16A 108993416 95.0% SMT AXH016A0X3-SR12Z* 3.0 – 5.5Vdc 0.75 – 3.63Vdc 16A CC109104477 * -12 code has 100Ω resistor between sense and output pins, internal to the module. Standard code, without –12 suffix, has 10Ω resistor between sense and output pins. -Z refers to RoHS-compliant parts 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. January 20, 2016 ©2016 General Electric Company. All International rights reserved. Version 1.46