Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc –5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A 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 3A output current  High efficiency – 94% at 3.3V full load (V = 5.0V) IN  Small size and low profile: 22.9 mm x 10.2 mm x 6.63 mm (0.90 in. x 0.40 in. x 0.261 in.)  Low output ripple and noise  High Reliability: Applications o Calculated MTBF = 11.9M hours at 25 C Full-load  Distributed power architectures  Constant switching frequency (300 kHz)  Intermediate bus voltage applications  Output voltage programmable from 0.75 Vdc to 3.63Vdc via external resistor  Telecommunications equipment  Line Regulation: 0.4% (typical)  Servers and storage applications  Load Regulation: 0.4% (typical)  Networking equipment  Temperature Regulation: 0.4 % (typical)  Enterprise Networks  Remote On/Off  Latest generation IC’s (DSP, FPGA, ASIC) and Microprocessor powered applications  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 MiniLynx SIP (single-in-line) power modules are non-isolated DC-DC converters that can deliver up to 3A of output current with full load efficiency of 94.0% at 3.3V output. These modules provide a precisely regulated output voltage programmable via an external resistor from 0.75Vdc to 3.63Vdc over a wide range of input voltage (VIN = 2.4 – 5.5Vdc). 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, programmable output voltage and over current 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 September 25, 2015 ©2015 General Electric Company. All rights reserved. Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A 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 2.4  5.5 Vdc Maximum Input Current All IIN,max 3.0 Adc (VIN= VIN, min to VIN, max, IO=IO, max VO,set = 3.3Vdc) Input No Load Current V = 0.75Vdc I 10 mA O,set IN,No load (V = 5.0Vdc, I = 0, module enabled) V = 3.3Vdc I 17 mA IN O O,set IN,No load Input Stand-by Current All IIN,stand-by 0.6 mA (V = 5.0Vdc, module disabled) IN 2 2 Inrush Transient All I t 0.04 A s Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; V to V All 35 mAp-p IN, min IN, I = I ; See Test configuration section) max, O Omax 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. September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 2 Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Output Voltage Set-point All V -2.0 V +2.0 % V O, set 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 0.4 % 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  10 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 3 Adc o Output Current Limit Inception (Hiccup Mode ) All I  220  % I O, lim o (V = 90% of V ) O O, set Output Short-Circuit Current All IO, s/c  2  Adc (VO≤250mV) ( Hiccup Mode ) VO,set = Efficiency η 81.5 % 0 75Vdc V = O, set VIN= VIN, nom, TA=25°C η 87.0 % 1 2Vdc V = O,set IO=IO, max , VO= VO,set η 89.0 % 1 5Vdc V = O,set η 90.0 % 1 8Vdc V = O,set η 93.0 % 2 5Vdc V = O,set η 94.0 % 3 3Vdc Switching Frequency All fsw  300  kHz Dynamic Load Response (dIo/dt=2.5A/µs; V = V ; T =25°C) All Vpk  250  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  50  µs (dIo/dt=2.5A/µs; V = V ; T =25°C) All Vpk  250  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  50  µs September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 3 Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Dynamic Load Response All V 60 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  60  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) 11,965,153 Hours Weight  2.8 (0.1)  g (oz.) September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 4 Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A 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 ― ― 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 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 1.5 ― 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 ― 4 ― msec Case 1: On/Off input is set to Logic Low (Module ON) and then input power is applied (delay from instant at which V =V until Vo=10% of Vo,set) IN IN, min All Tdelay ― 4 ― 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 ― 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 = 2.4 to 5.5Vdc, T = 25 C O O, max IN A Remote Sense Range ― ― 0.5 Overtemperature Protection All T 140 °C ref   (See Thermal Consideration section) Input Undervoltage Lockout Turn-on Threshold All 2.2 V Turn-off Threshold All 2.0 V September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 5 Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Characteristic Curves TM The following figures provide typical characteristics for the Austin MiniLynx SIP modules at 25ºC. 94 97 91 94 88 91 85 88 85 82 82 79 IN IN V = 2.5V V = 2.5V 79 76 IN IN V = 3.3V V = 3.3V 73 76 IN IN V = 5.0V V = 5.0V 73 70 0 0.6 1.2 1.8 2.4 3 0 0.6 1.2 1.8 2.4 3 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). 94 98 91 95 92 88 85 89 82 86 79 83 VIN = 2.5V VIN = 3.3V 76 80 IN V = 3.3V VIN = 4.0V 73 77 IN V = 5.0V IN V = 5.0V 70 74 0 0.6 1.2 1.8 2.4 3 0 0.6 1.2 1.8 2.4 3 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 = 1.2Vdc). = 2.5Vdc). 96 99 93 96 90 93 87 90 84 87 81 84 IN V = 2.5V IN V = 4.0V 78 81 IN V = 3.3V IN V = 5.0V 75 78 IN V = 5.0V IN V = 5.5V 72 75 0 0.6 1.2 1.8 2.4 3 0 0.6 1.2 1.8 2.4 3 OUTPUT CURRENT, I (A) OUTPUT CURRENT, I (A) O O Figure 3. Converter Efficiency versus Output Current (Vout Figure 6. Converter Efficiency versus Output Current (Vout = 1.5Vdc). = 3.3Vdc). September 25, 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 TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Characteristic Curves (continued) TM The following figures provide typical characteristics for the Austin MiniLynx SIP modules at 25ºC. 3.5 Io=3A 3 Io=1.5A 2.5 Io=0A 2 1.5 1 0.5 0 0 1 2 3 4 5 INPUT VOLTAGE, V (V) IN TIME, t (20 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 (1µs/div) TIME, t (20 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 = 0.75Vdc, Io=3A). TIME, t (1µs/div) TIME, t (100µs/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 = 5.0V dc, Vo = 3.3Vdc, Io=3A). μF Polymer Capacitors). September 25, 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) (20mV/div) IO (A) (2A/div) VO (V) (100mV/div) IO (A) (2A/div) VO (V) (100mV/div) Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Characteristic Curves (continued) TM The following figures provide typical characteristics for the Austin MiniLynx SIP modules at 25ºC. TIME, t (2ms/div) TIME, t (100µs/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 = 3.3Vdc, Cext = 2x150 μF (VIN = 5.0Vdc, Vo = 3.3Vdc, Io = 3A). Polymer Capacitors). TIME, t (2ms/div) TIME, t (2ms/div) Figure 14. Typical Start-Up Using Remote On/Off Figure 17 Typical Start-Up Using Remote On/Off with Prebias (VIN = 3.3Vdc, Vo = 1.8Vdc, Io = 1.0A, Vbias (VIN = 5.0Vdc, Vo = 3.3Vdc, Io = 3A). =1.0Vdc). TIME, t (2ms/div) TIME, t (10ms/div) Figure 15. Typical Start-Up Using Remote On/Off with Low- Figure 18. Output short circuit Current ESR external capacitors (7x150uF Polymer) (VIN = 5.0Vdc, Vo = 0.75Vdc). (VIN = 5.0Vdc, Vo = 3.3Vdc, Io = 3A, Co = 1050µF). September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 8 ON/OFF VOLTAGE OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE OUTPUT CURRENT, OUTPUTVOLTAGE VOn/off(V) (2V/div) VO (V) (1V/div) VOn/off(V) (2V/div) VO (V) (1V/div) IO (A) (2A/div) VO (V) (20mV/div) OUTPUT CURRENT, ON/OFF VOLTAGE OUTPUT VOLTAGE INPUT VOLTAG OUTPUT VOLTAGE V IN IO (A) (5A/div) VOn/off(V) (2V/div) VO (V) (0.5V/div) (V) (2V/div) VO (V) (1V/div) Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Characteristic Curves (continued) TM The following figures provide thermal derating curves for the Austin MiniLynx SIP modules. 3.5 3.5 3 3 2.5 2.5 2 2 1.5 1.5 1 1 0.5 0.5 0 LFM 0 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 Temperature and Airflow (VIN = 5.0, Vo=3.3Vdc). Ambient Temperature and Airflow (VIN = 3.3dc, Vo=2.5 Vdc). 3.5 3.5 3 3 2.5 2.5 2 2 1.5 1.5 1 1 0.5 0.5 0 LFM 0 LFM 0 0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 O AMBIENT TEMPERATURE, T C A Figure 20. Derating Output Current versus Local Ambient Figure 23. Derating Output Current versus Local Temperature and Airflow (VIN = 5.0Vdc, Vo=1.8 Vdc). Ambient Temperature and Airflow (VIN = 3.3dc, Vo=1.2 Vdc). 3.5 3.5 3 3 2.5 2.5 2 2 1.5 1.5 1 1 0.5 0.5 0 LFM 0 LFM 0 0 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 O AMBIENT TEMPERATURE, T C A Figure 21. Derating Output Current versus Local Ambient Figure 24. Derating Output Current versus Local Temperature and Airflow (VIN = 5.0Vdc, Vo=0.75 Vdc). Ambient Temperature and Airflow (VIN = 3.3dc, Vo=0.75 Vdc). Test Configurations September 25, 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 TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current CURRENT PROBE TO OSCILLOSCOPE Design Considerations L TEST Input Filtering V (+) IN 1μH TM The Austin MiniLynx SIP module should be connected to a low-impedance source. A highly inductive source can affect CIN CS 1000μF Electrolytic the stability of the module. An input capacitance must be 2x100μF E.S.R.<0.1Ω placed directly adjacent to the input pin of the module, to Tantalum @ 20°C 100kHz minimize input ripple voltage and ensure module stability. COM To minimize input voltage ripple, low-ESR polymer and ceramic capacitors are recommended at the input of the module. NOTE: Measure input reflected ripple current with a simulated Figure 28 shows the input ripple voltage (mVp-p) for various source inductance (L ) of 1μH. Capacitor C offsets TEST S possible battery impedance. Measure current as shown outputs with 1x22µF (TDK: C3225X5R0J226V) ceramic above. capacitor at the input of the module. Figure 29 shows the input ripple with 1x47µF (TDK: C3225X5R0J476M) ceramic Figure 25. Input Reflected Ripple Current Test Setup. capacitor at full load. COPPER STRIP 160 V O (+) RESISTIVE 3.3Vin LOAD 140 5Vin 1uF . 10uF SCOPE 120 COM 100 GROUND PLANE 80 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 60 to avoid measurement errors due to socket contact resistance. 40 Figure 26. Output Ripple and Noise Test Setup. 20 0 R R R R distribution contact contact distribution 0 0.5 1 1.5 2 2.5 3 3.5 V (+) V IN O Output Voltage (Vdc) Figure 28. Input ripple voltage for various outputs with 1x22 R LOAD V VIN O µF ceramic capacitor at the input (full-load). 160 Rdistribution Rcontact Rcontact Rdistribution 3.3Vin COM COM 140 5Vin 120 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 resistance. 80 Figure 27. Output Voltage and Efficiency Test Setup. 60 40 V . I O O 20 Efficiency η = x 100 % V . I IN IN 0 0 0.5 1 1.5 2 2.5 3 3.5 Output Voltage (Vdc) Figure 29. Input ripple voltage for various outputs with 1x47 µF ceramic capacitor at the input (full load). September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 10 BATTERY Input Ripple Voltage (mVp-p) Input Ripple Voltage (mVp-p) Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Design Considerations (continued) Safety Considerations Output Filtering For safety agency approval the power module must be installed in compliance with the spacing and separation TM The Austin MiniLynx SIP 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 of reasons. First, there may be a need to further reduce the For the converter output to be considered meeting the output ripple and noise of the module. Second, the dynamic requirements of safety extra-low voltage (SELV), the input must response characteristics may need to be customized to a meet SELV requirements. The power module has extra-low particular load step change. voltage (ELV) outputs when all inputs are ELV. The input to these units is to be provided with a fast-acting To reduce the output ripple and improve the dynamic response fuse with a maximum rating of 6A in the positive input lead. 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. September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 11 Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Feature Description VIN+ MODULE Remote On/Off R pull-up TM I The Austin MiniLynx SIP power modules feature an On/Off pin ON/OFF for remote On/Off operation. Two On/Off logic options are ON/OFF TM available in the Austin MiniLynx series modules. Positive + PWM Enable V Logic On/Off signal, device code suffix “4”, turns the module ON ON/OFF R1 during a logic High on the On/Off pin and turns the module OFF during a logic Low. Negative logic On/Off signal, no device Q2 CSS code suffix, turns the module OFF during logic High on the Q1 On/Off pin and turns the module ON during logic Low. R2 For positive logic modules, the circuit configuration for using GND _ the On/Off pin is shown in Figure 30. The On/Off pin is an open collector/drain logic input signal (Von/Off) that is referenced to Figure 31. Circuit configuration for using negative logic ground. During a logic-high (On/Off pin is pulled high internal On/OFF. to the module) when the transistor Q1 is in the Off state, the power module is ON. Maximum allowable leakage current of the transistor when Von/off = VIN,max is 10µA. Applying a logic- Overcurrent Protection low when the transistor Q1 is turned-On, the power module is To provide protection in a fault (output overload) condition, the OFF. During this state VOn/Off must be less than 0.3V. When unit is equipped with internal current-limiting circuitry and can not using positive logic On/off pin, leave the pin unconnected endure current limiting continuously. At the point of or tie to VIN. current-limit inception, the unit enters hiccup mode. The unit operates normally once the output current is brought back into VIN+ MODULE its specified range. The typical average output current during hiccup is 3.5A. R2 ON/OFF Input Undervoltage Lockout Q2 + R1 V At input voltages below the input undervoltage lockout limit, ON/OFF I ON/OFF PWM Enable module operation is disabled. The module will begin to operate R3 at an input voltage above the undervoltage lockout turn-on threshold. Q1 Q3 CSS Overtemperature Protection R4 To provide over temperature protection in a fault condition, GND _ the unit relies upon the thermal protection feature of the controller IC. The unit will shutdown if the thermal reference o point Tref, exceeds 140 C (typical), but the thermal shutdown Figure 30. Circuit configuration for using positive logic is not intended as a guarantee that the unit will survive On/OFF. temperatures beyond its rating. The module will automatically restart after it cools down. For negative logic On/Off devices, the circuit configuration is shown is Figure 31. The On/Off pin is pulled high with an external pull-up resistor (typical Rpull-up = 5k, +/- 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 1.5Vdc. 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. September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 12 Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Voltage Margining Feature Descriptions (continued) Output voltage margining can be implemented in the Austin Output Voltage Programming TM MiniLynx modules by connecting a resistor, R , from margin-up the Trim pin to the ground pin for margining-up the output TM The output voltage of the Austin MiniLynx SIP can be voltage and by connecting a resistor, R , from the Trim margin-down programmed to any voltage from 0.75 Vdc to 3.63 Vdc by pin to the Output pin for margining-down. Figure 33 shows the connecting a single resistor (shown as Rtrim in Figure 32) circuit configuration for output voltage margining. The POL between the TRIM and GND pins of the module. Without an Programming Tool, available at ww.gecriticalpower.com under external resistor between TRIM pin and the ground, the output the Design Tools section, also calculates the values of R margin-up voltage of the module is 0.7525 Vdc. To calculate the value of and Rmargin-down for a specific output voltage and % margin. the resistor Rtrim for a particular output voltage Vo, use the Please consult your local GE technical representative for following equation: additional details.  21070  Rtrim= − 5110Ω   Vo− 0.7525   Vo Rmargin-down For example, to program the output voltage of the Austin TM MiniLynx module to 1.8 Vdc, Rtrim is calculated is follows: Austin Lynx or Lynx II Series 21070   Rtrim= − 5110 Q2   1.8− 0.7525   Trim Rtrim= 15.004kΩ Rmargin-up Rtrim V (+) V (+) IN O Q1 LOAD GND ON/OFF TRIM R trim Figure 33. Circuit Configuration for margining Output GND voltage. Figure 32. Circuit configuration to program output voltage using an external resistor. Table 1 provides Rtrim values required for some common output voltages. Table 1 V (V) Rtrim (KΩ) O, set 0.7525 Open 1.2 41.973 1.5 23.077 1.8 15.004 2.5 6.947 3.3 3.160 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. September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 13 Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Thermal Considerations Power modules operate in a variety of thermal environments; 25.4_ however, sufficient cooling should always be provided to help Wind Tunnel (1.0) ensure reliable operation. Considerations include ambient temperature, airflow, module PWBs power dissipation, and the need for increased reliability. A Power Module reduction in the operating temperature of the module will result in an increase in reliability. The thermal data presented here is based on physical measurements taken in a wind tunnel. The test set-up is shown in Figure 35. Note that the airflow is parallel to the long axis of the module as shown in figure 34. The derating data applies to airflow in either 76.2_ (3.0) direction of the module’s long axis. x Probe Location for measuring 5.97_ airflow and (0.235) ambient temperature Air flow Figure 35. Thermal Test Set-up. Figure 34. T Temperature measurement location. ref The thermal reference point, T used in the specifications is ref shown in Figure 34. For reliable operation this temperature o should not exceed 115 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. September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 14 Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A 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. September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 15 Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A 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 PIN FUNCTION 1 Vo 2 Trim 3 GND 4 VIN 5 On/Off September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 16 Data Sheet GE TM Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 2.4Vdc – 5.5Vdc input; 0.75Vdc to 3.63Vdc output; 3A Output Current Recommended Pad Layout Dimensions are in millimeters and (inches). Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated] x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.) PIN FUNCTION 1 Vo 2 Trim 3 GND 4 VIN 5 On/Off Component side view September 25, 2015 ©2015 General Electric Company. All rights reserved. Page 17 Data Sheet GE TM 12V Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current Ordering Information Please contact your GE Sales Representative for pricing, availability and optional features. Table 3. Device Codes Input Output Output Efficiency On/Off Connector Voltage Range Comcodes Device Code Voltage Current 3.3V@ 3A Logic Type AXH003A0X 2.4 – 5.5Vdc 0.75 – 3.63Vdc 3 A 94.0 % Negative SIP 108992640 SIP AXH003A0X4 2.4 – 5.5Vdc 0.75 – 3.63Vdc 3 A 94.0 % Positive 108992657 SIP AXH003A0X-Z 2.4 – 5.5Vdc 0.75 – 3.63Vdc 3 A 94.0 % Negative CC109104865 SIP AXH003A0X4-Z 2.4 – 5.5Vdc 0.75 – 3.63Vdc 3 A 94.0 % Positive CC109104873 -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. September 25, 2015 ©2015 General Electric Company. All International rights reserved. Version 1.35