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 Features  Compliant to RoHS EU Directive 2011/65/EU (-Z RoHS Compliant 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)  Delivers up to 3A output current  High efficiency – 91% at 3.3V full load (VIN = 12.0V)  Small size and low profile: 22.9 mm x 10.2 mm x 6.63 mm (0.90 in x 0.4in x 0.261 in)  Low output ripple and noise  High Reliability: Applications o Calculated MTBF = 10.8M 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 5.5  Telecommunications equipment Vdc via external resistor  Servers and storage applications  Line Regulation: 0.3% (typical)  Networking equipment  Load Regulation: 0.4% (typical)  Enterprise Networks  Temperature Regulation: 0.4 % (typical)  Latest generation IC’s (DSP, FPGA, ASIC) and  Remote On/Off 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 12V SIP (single-inline) power modules are non-isolated DC-DC converters that can deliver up to 3A of output current with full load efficiency of 91% at 3.3V output. These modules provide precisely regulated output voltage programmable via external resistor from 0.75Vdc to 5.5Vdc over a wide range of input voltage (VIN = 8.3 - 14V). 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 24, 2015 ©2015 General Electric Company. All rights reserved. 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 Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Device Symbol Min Max Unit Input Voltage All VIN -0.3 15 Vdc Continuous 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 ≤ 3.63 VIN 8.3 12 14 Vdc Vo,set > 3.63 VIN 8.3 12 13.2 Vdc Maximum Input Current All IIN,max 2.2 Adc (VIN= VIN, min to VIN, max, IO=IO, max VO,set = 3.3Vdc) Input No Load Current VO,set = 0.75Vdc IIN,No load 45 mA (VIN = VIN, nom Vdc, IO = 0, module enabled) VO,set = 5.5Vdc IIN,No load 150 mA Input Stand-by Current All I 1.2 mA IN,stand-by (VIN = VIN, nom, 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 30 mAp-p max, IO= IOmax ; See Test configuration section) Input Ripple Rejection (120Hz) All 30 dB CAUTION: This power module is not internally fused. An input line fuse must always be used. This power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of a complex power architecture. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 6 A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information. September 24, 2015 ©2015 General Electric Company. All rights reserved. Page 2 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 Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Output Voltage Set-point All V -2.5 V +2.5 % V O, set O, set O, set (VIN=VIN, min, IO=IO, max, TA=25°C) Output Voltage All V -3% +4% % 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  10 15 mVrms Peak-to-Peak (5Hz to 20MHz bandwidth) All  30 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  200  % 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 ) Efficiency VO,set = 1.2Vdc η 81.5 % VIN= VIN, nom, TA=25°C VO, set = 1.5Vdc η 84.0 % IO=IO, max , VO= VO,set VO,set = 1.8Vdc η 86.0 % VO,set = 2.5Vdc η 89.0 % VO,set = 3.3Vdc η 91.0 % VO,set = 5.0Vdc η 93.0 % Switching Frequency All fsw  300  kHz Dynamic Load Response (dIo/dt=2.5A/µs; V = V ; T =25°C) All Vpk  200  mV IN IN, nom A Load Change from Io= 50% to 100% of Io,max; 1μF ceramic// 10 μF tantalum Peak Deviation Settling Time (Vo<10% peak deviation) All ts  25  µs (dIo/dt=2.5A/µs; V = V ; T =25°C) All Vpk  200  mV IN IN, nom A Load Change from Io= 100% to 50%of Io,max: 1μF ceramic// 10 μF tantalum Peak Deviation Settling Time (Vo<10% peak deviation) All ts  25  µs September 24, 2015 ©2015 General Electric Company. All rights reserved. Page 3 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 Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Dynamic Load Response All V 75 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  75  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) 10,865,819 Hours per Telecordia SR-332 Issue 1: Method 1 Case 3 Weight 2.8 (0.1) g (oz.)   September 24, 2015 ©2015 General Electric Company. All rights reserved. Page 4 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 Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter Device Symbol Min Typ Max Unit On/Off Signal interface Device code with Suffix “4” – Positive logic (On/Off is open collector/drain logic input; Signal referenced to GND - See feature description section) Input High Voltage (Module ON) All VIH ― ― V V IN, max Input High Current All IIH ― ― 10 μA Input Low Voltage (Module OFF) All VIL -0.2 ― 0.3 V Input Low Current All IIL ― 0.2 1 mA Device Code with no suffix – Negative Logic (On/OFF pin is open collector/drain logic input with external pull-up resistor; signal referenced to GND) Input High Voltage (Module OFF) All VIH 2.5 ― V Vdc IN,max Input High Current All IIH 0.2 1 mA Input Low Voltage (Module ON) All VIL -0.2 ― 0.3 Vdc Input low Current All IIL ― 10 μA Turn-On Delay and Rise Times o (I =I V = V T = 25 C, ) O O, max , IN IN, nom, A Case 1: On/Off input is set to Logic Low (Module All Tdelay ― 3 ― msec ON) and then input power is applied (delay from instant at which VIN =VIN, min until Vo=10% of Vo,set) All Tdelay ― 3 ― msec Case 2: Input power is applied for at least one second and then the On/Off input is set to logic Low (delay from instant at which Von/Off=0.3V until Vo=10% of Vo, set) All Trise ― 4 ― 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 ― % V O, set o IO= IO, max; VIN = VIN, min to VIN, max , TA = 25 C Overtemperature Protection All Tref  140  °C (See Thermal Consideration section) Input Undervoltage Lockout Turn-on Threshold All 7.9 V Turn-off Threshold All 7.8 V September 24, 2015 ©2015 General Electric Company. All rights reserved. Page 5 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 Characteristic Curves TM The following figures provide typical characteristics for the Austin MiniLynx 12 V SIP modules at 25ºC. 92 88 90 86 84 88 86 82 84 80 82 78 80 76 IN V = 8.3V VIN = 8.3V 78 74 IN VIN =12.0V V = 12.0V 76 72 VIN = 14.0V IN V =14.0V 74 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 = 1.2Vdc). = 2.5Vdc). 88 95 86 92 84 89 82 86 80 83 78 80 76 VIN = 8.3V VIN = 8.3V 77 74 IN V = 12.0V VIN = 12.0V 74 72 IN IN V = 14.0V V = 14.0V 70 71 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 = 1.5Vdc). = 3.3Vdc). 90 99 96 88 86 93 90 84 87 82 84 80 81 78 IN V = 8.3V IN V = 8.3V 78 76 IN IN V = 12.0V V = 12.0V 75 74 IN IN V =14.0V V = 14.0V 72 72 0 0.6 1.2 1.8 2.4 3 0 0.6 1.2 1.8 2.4 3 OUTPUT CU RRENT, I (A) OUTPUT CURRENT, I (A) O O Figure 3. Converter Efficiency versus Output Current (Vout Figure 6. Converter Efficiency versus Output Current (Vout = 1.8Vdc). = 5.0Vdc). September 24, 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 12V Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current Characteristic Curves (continued) TM The following figures provide typical characteristics for the Austin MiniLynx 12V SIP modules at 25ºC. 1.6 Io=3A 1.4 Io=1.5A 1.2 Io=0A 1 0.8 0.6 0.4 0.2 0 7 8 9 10 11 12 13 14 INPUT VOLTAGE, V (V) IN TIME, t (5 µs/div) Figure 7. Input voltage vs. Input Current Figure 10. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3Vdc). (Vout =3.3Vdc). TIME, t (1µs/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 = 0.75Vdc, Io=3A). TIME, t (1µs/div) TIME, t (50µs/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 = 3.3Vdc, Io=3A). μF Polymer Capacitors). September 24, 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) (1A/div) VO (V) (50mV/div) IO (A) (1A/div) VO (V) (200mV/div) IO (A) (1A/div) VO (V) (200mV/div) 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 Characteristic Curves (continued) TM The following figures provide typical characteristics for the Austin MiniLynx 12 V SIP modules at 25ºC. TIME, t (1ms/div) TIME, t (50µs/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 = 12.0Vdc, Vo = 3.3Vdc, Io = 3A). Polymer Capacitors). TIME, t (1ms/div) TIME, t (1ms/div) Figure 14. Typical Start-Up Using Remote On/Off Figure 17 Typical Start-Up Using Remote On/Off with Prebias (VIN = 12.0Vdc, Vo = 1.8Vdc, Io = 1.0A, Vbias (VIN = 12.0Vdc, Vo = 3.3Vdc, Io = 3A). =1.0Vdc). TIME, t (1ms/div) TIME, t (20ms/div) Figure 15. Typical Start-Up Using Remote On/Off with Low- Figure 18. Output short circuit Current ESR external capacitors (7x150uF Polymer) (VIN = 12.0Vdc, Vo = 0.75Vdc). (V = 12.0Vdc, Vo = 3.3Vdc, Io = 3A, Co = 1050µF). IN September 24, 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) (10V/div) VO (V) (1V/div) VOn/off(V) (10V/div) VO (V) (1V/div) IO (A) (1A/div) VO (V) (50mV/div) OUTPUT CURRENT, ON/OFF VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT VOLTAGE IO (A) (5A/div) VOn/off(V) (10V/div) VO (V) (0.5V/div) VIN (V) (10V/div) VO (V) (1V/div) 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 Characteristic Curves (continued) TM The following figures provide thermal derating curves for the Austin MiniLynx 12 V SIP modules. 3.5 3.5 3 3.0 2.5 2.5 2 2.0 1.5 1.5 1 1.0 100 LFM 100 LFM 0.5 0.5 0 LFM 0 LFM 0 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 = 12.0 Vdc, Vo=0.75Vdc). Ambient Temperature and Airflow (VIN = 12 Vdc, Vo=5.0 Vdc). 3.5 3.0 2.5 2.0 1.5 1.0 100 LFM 0.5 0 LFM 0.0 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 = 12.0Vdc, Vo=1.8 Vdc). 3.5 3.0 2.5 2.0 1.5 1.0 100 LFM 0.5 0 LFM 0.0 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 = 12.0Vdc, Vo=3.3 Vdc). September 24, 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 12V Austin MiniLynx : SIP Non-Isolated DC-DC Power Modules 8.3Vdc –14Vdc input; 0.75Vdc to 5.5Vdc output; 3A Output Current Test Configurations Design Considerations Input Filtering CURRENT PROBE TO OSCILLOSCOPE TM Austin MiniLynx 12V SIP module should be connected LTEST to a low -impedance source. A highly inductive source VIN(+) 1μH can affect the stability of the module. An input capacitance must be placed directly adjacent to the C input pin of the module, to minimize input ripple voltage IN C 1000μF S Electrolytic and ensure module stability in the presence of inductive 2x100μF E.S.R.<0.1Ω Tantalum traces that supply input voltage to the module. @ 20°C 100kHz COM In a typical application, a 22 µF low-ESR ceramic capacitors will be sufficient to provide adequate ripple NOTE: Measure input reflected ripple current with a simulated source inductance (L ) of 1μH. Capacitor C offsets TEST S voltage at the input of the module. To further minimize possible battery impedance. Measure current as shown ripple voltage at the input, additional ceramic above. capacitors are recommended at the input of the Figure 23. Input Reflected Ripple Current Test Setup. module. Figure 26 shows input ripple voltage (mVp-p) for various outputs with a 10 µF or a 22µF input ceramic capacitor at full load. COPPER STRIP 350 V (+) RESISTIVE O LOAD 1 x 10uF 300 1uF . 10uF SCOPE 1 x 22uF 250 COM 200 GROUND PLANE 150 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 100 to avoid measurement errors due to socket contact resistance. 50 Figure 24. Output Ripple and Noise Test Setup. 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 Rdistribution Rcontact Rcontact Rdistribution VIN(+) VO Figure 26. Input ripple voltage for various outputs with 10 µF or a 22 µF ceramic capacitor 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 September 24, 2015 ©2015 General Electric Company. All rights reserved. Page 10 BATTERY 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 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 12 V SIP module is designed for low requirements of the end-use safety agency standards, output ripple voltage and will meet the maximum output ripple i.e., UL 60950-1, CSA C22.2 No. 60950-1-03, and VDE specification with 1 µF ceramic and 10 µF tantalum capacitors 0850:2001-12 (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 output For the converter output to be considered meeting the ripple and noise of the module. Second, the dynamic response requirements of safety extra-low voltage (SELV), the characteristics may need to be customized to a particular load input must meet SELV requirements. The power module step change. has extra-low voltage (ELV) outputs when all inputs are ELV. To reduce the output ripple and improve the dynamic response to a step load change, additional capacitance at the output can The input to these units is to be provided with a fast- be used. Low ESR polymer and ceramic capacitors are acting fuse with a maximum rating of 6A in the positive recommended to improve the dynamic response of the module. input lead. For stable operation of the module, limit the capacitance to less than the maximum output capacitance as specified in the electrical specification table. September 24, 2015 ©2015 General Electric Company. All rights reserved. Page 11 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 Feature Description VIN+ MODULE Remote On/Off R pull-up TM I Austin MiniLynx 12V 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 12V 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 code Q2 CSS suffix, turns the module OFF during logic High and turns the Q1 module ON during logic Low. R2 For positive logic modules, the circuit configuration for using the GND _ On/Off pin is shown in Figure 27. The On/Off pin is an open collector/drain logic input signal (Von/Off) that is referenced to Figure 28. Circuit configuration for using negative ground. During a logic-high (On/Off pin is pulled high internal to logic On/OFF. 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-low Overcurrent Protection when the transistor Q1 is turned-On, the power module is OFF. To provide protection in a fault (output overload) During this state VOn/Off must be less than 0.3V. When not condition, the unit is equipped with internal using positive logic On/off pin, leave the pin unconnected or tie current-limiting circuitry and can endure current limiting to VIN. continuously. At the point of current-limit inception, the unit enters hiccup mode. The unit operates normally VIN+ MODULE once the output current is brought back into its specified range. The typical average output current R2 during hiccup is 3.5A. ON/OFF Q2 Input Undervoltage Lockout + R1 V ON/OFF I At input voltages below the input undervoltage lockout ON/OFF PWM Enable limit, module operation is disabled. The module will R3 begin to operate at an input voltage above the Q1 undervoltage lockout turn-on threshold. Q3 CSS Overtemperature Protection R4 To provide over temperature protection in a fault GND _ condition, the unit relies upon the thermal protection feature of the controller IC. The unit will shutdown if the Figure 27. Circuit configuration for using positive logic thermal reference point T , (see Figure 31) exceeds ref2 o On/OFF. 140 C (typical), but the thermal shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. The module will For negative logic On/Off devices, the circuit configuration is automatically restarts after it cools down. shown is Figure 28. The On/Off pin is pulled high with an external pull-up resistor (typical Rpull-up = 68k, +/- 5%). When transistor Q1 is in the Off state, logic High is applied to the On/Off pin and the power module is Off. The minimum On/off voltage for logic High on the On/Off pin is 2.5 Vdc. To turn the module ON, logic Low is applied to the On/Off pin by turning ON Q1. When not using the negative logic On/Off, leave the pin unconnected or tie to GND. September 24, 2015 ©2015 General Electric Company. All rights reserved. Page 12 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 Voltage Margining Feature Descriptions (continued) Output voltage margining can be implemented in the Output Voltage Programming TM Austin MiniLynx modules by connecting a resistor, Rmargin-up, from the Trim pin to the ground pin for TM margining-up the output voltage and by connecting a The output voltage of the Austin MiniLynx 12V can be resistor, Rmargin-down, from the Trim pin to the Output pin programmed to any voltage from 0.75Vdc to 5.5Vdc by for margining-down. Figure 30 shows the circuit connecting a resistor (shown as Rtrim in Figure 29) between Trim configuration for output voltage margining. The POL and GND pins of the module. Without an external resistor Programming Tool, available at between Trim and GND pins, the output of the module will be www.gecriticalpower.com under the Design Tools 0.7525Vdc. To calculate the value of the trim resistor, Rtrim for a section, also calculates the values of R and margin-up desired output voltage, use the following equation: Rmargin-down for a specific output voltage and % margin. Please consult your local GE technical representative for  10500  Rtrim= −1000Ω   additional details. Vo− 0.7525   Rtrim is the external resistor in Ω Vo Vo is the desired output voltage Rmargin-down For example, to program the output voltage of the Austin TM MiniLynx 12V module to 1.8V, Rtrim is calculated as follows: Austin Lynx or Lynx II Series  10500  Rtrim= −1000 Q2   1.8− 0.7525   Trim Rtrim= 9.024kΩ Rmargin-up Rtrim V (+) V (+) IN O Q1 LOAD GND ON/OFF TRIM R trim Figure 30. Circuit Configuration for margining Output GND voltage. Figure 29. Circuit configuration to program output voltage using an external resistor. Table 1 provides Rtrim values required for some common output voltages. Table 1 VO, set (V) Rtrim (KΩ) 0.7525 Open 1.2 22.46 1.5 13.05 1.8 9.024 2.5 5.009 3.3 3.122 5.0 1.472 Using 1% tolerance trim resistor, set point tolerance of ±2% is achieved as specified in the electrical specification. The POL Programming Tool, available at www.gecriticalpower.com under the Design Tools section, helps determine the required external trim resistor needed for a specific output voltage. September 24, 2015 ©2015 General Electric Company. All rights reserved. Page 13 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 Thermal Considerations Power modules operate in a variety of thermal environments; however, sufficient cooling should be provided to help ensure reliable operation. 25.4_ Wind Tunnel (1.0) Considerations include ambient temperature, airflow, module power dissipation, and the need for increased reliability. A PWBs reduction in the operating temperature of the module will result Power Module 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 long axis of the module as shown in figure 31. The derating data applies to airflow in either direction of the module’s long axis. 76.2_ (3.0) x Probe Loc ation for measuring 5.97_ airflow and (0.235) ambient temperature Air flow Figure 32. Thermal Test Set-up. Heat Transfer via Convection Increased airflow over the module enhances the heat transfer via convection. Thermal derating curves showing the maximum output current that can be delivered by various module versus local ambient temperature (TA) for natural convection and up to 0.5m/s (100 ft./min) are shown in the Characteristics Curves section. Figure 31. T Temperature measurement location. ref The thermal reference point, T used in the specifications is ref shown in Figure 32. 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 24, 2015 ©2015 General Electric Company. All rights reserved. Page 14 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 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 24, 2015 ©2015 General Electric Company. All rights reserved. Page 15 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 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 24, 2015 ©2015 General Electric Company. All rights reserved. Page 16 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 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 September 24, 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 2. Device Codes Input Output Output Efficiency Connector Device Code Comcodes Voltage Voltage Current 3.3V@ 3A Type 108992624 AXA003A0X 8.3 – 14Vdc 0.75 – 5.5Vdc 3 A 91.0% SIP 0.75 – 5.5Vdc SIP CC109101268 AXA003A0XZ 8.3 – 14Vdc 3 A 91.0% 0.75 – 5.5Vdc SIP 108992632 AXA003A0X4 8.3 – 14Vdc 3 A 91.0% 0.75 – 5.5Vdc SIP CC109104824 AXA003A0X4Z 8.3 – 14Vdc 3 A 91.0% -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 24, 2015 ©2015 General Electric Company. All International rights reserved. Version 1.34