D Data Sheet t G GE N NQR002A A0X4: No on-Isolat ted DC-D DC Powe er Module es 3 3Vdc –14Vd dc input; 0.6Vdc to 5.5 5Vdc outpu ut; 2A Outp put Current t Fea atures  Compliant to RoHS EU Direc ctive 2002/95/E EC (Z versions)  Compatible in n a Pb-free or S SnPb wave-sold dering environment (Z versions)  Wide Input vo oltage range (3 3Vdc-14Vdc)  Output voltag ge programmable from 0.6 Vd dc to 5.5Vdc via external re esistor TM  Tunable Loop p to optimize dynamic output voltage response  Fixed switchin ng frequency  Output overcurrent protection (non-latchin ng)  Over tempera ature protection Ro oHS Complia ant  Remote On/O Off A Application ns  Small size: 10 0.4 mm x 13.5 m mm x 8.1 mm  Distributed d power archit tectures (0.4 41 in x 0.53 in x 0.32 in)  Intermedia ate bus voltage e applications  Wide operatin ng temperature range (-40°C to 85°C)  Telecomm munications equ uipment †  UL* 60950-1R Recognized, CS SA C22.2 No. 60950-1-03  Servers an nd storage app plications ‡ Certified, and VDE 0805:200 01-12 (EN6095 50-1) Licensed  Networkin ng equipment  ISO** 9001 an nd ISO 14001 c certified manuf facturing facilities  Industrial applications D Description n T The NQR002A0 0X4 SIP power modules are non-isolated dc c-dc converters s in an industry y standard pac ckage that can deliver up to 2 2A of output cu urrent with a fu ull load efficien ncy of 93% at 5 5.0Vdc output v voltage (VIN = 1 12Vdc). These modules opera ate over a w wide range of iinput voltage (V VIN = 3Vdc-14V Vdc) and provid de a precisely r regulated output voltage from m 0.6Vdc to 5.5 5Vdc, p programmable e via an external resistor. Fea atures include remote On/Off f, adjustable ou utput voltage, o over current an nd over TM t temperature protection. A ne ew feature, the e Tunable Loop p , allows the u user to optimiz ze the dynamic c response of th he converter t to match the lo oad. * * UL is a regist tered tradema ark of Underwriiters Laborator ries, Inc. C CSA is a registe ered trademark of Canadian Standards Association. V VDE is a tradem mark of Verban nd Deutscher E Elektrotechnike er e.V. * ** ISO is a regis stered tradema ark of the Inter rnational Organization of Standards Jun ne 18, 2014 ©2014 General Electric Compan ny. All rights reserved. GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Device Symbol Min Max Unit Input Voltage All V -0.3 15 Vdc IN 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 All VIN 3 12 14 Vdc Maximum Input Current All IIN,max 2.0 Adc (V =3V to 14V, I =I) IN O O, max Input No Load Current (VIN = 9Vdc, IO = 0, module enabled) VO,set = 0.6 Vdc IIN,No load 20 mA (V = 12Vdc, I = 0, module enabled) V = 5.0Vdc I 48 mA IN O O,set IN,No load Input Stand-by Current All I 1.5 mA IN,stand-by (VIN = 12Vdc, module disabled) 2 2 Inrush Transient All It 1 A s Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN =0 All 20 mAp-p to 14V, IO= IOmax ; See Test Configurations) Input Ripple Rejection (120Hz) All -65 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 an integrated part of sophisticated 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 4A (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. June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 2 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Output Voltage Set-point (with 0.5% tolerance for All VO, set -1.5 +1.5 % VO, set external resistor used to set output voltage) Output Voltage All VO, set -3.0 ⎯ +3.0 % VO, set (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range All V 0.6 5.5 Vdc O Selected by an external resistor Output Regulation (for Vo ≥ 2.5Vdc) Line (V =V to V) All -0.4 +0.4 % V IN IN, min IN, max ⎯ O, set Load (I =I to I) All 0.8 % V O O, min O, max ⎯ O, set Output Regulation (for Vo <2.5Vdc) Line (VIN=VIN, min to VIN, max) All -10 ⎯ +10 mV Load (IO=IO, min to IO, max) All ⎯ 20 mV Output Ripple and Noise on nominal output (V =V and I =I to I Cout = 22μF) IN IN, nom O O, min O, max Peak-to-Peak (5Hz to 20MHz bandwidth) All 50 100 mV ⎯ pk-pk RMS (5Hz to 20MHz bandwidth) All ⎯ 20 38 mV rms 1 External Capacitance TM Without the Tunable Loop ESR ≥ 1 mΩ All C 22 47 μF O, max ⎯ TM With the Tunable Loop ESR ≥ 0.15 mΩ All CO, max 0 ⎯ 1000 μF ESR ≥ 10 mΩ All C 0 ⎯ 3000 μF O, max Output Current All I 0 2 Adc o Output Current Limit Inception (Hiccup Mode ) All I 180 % I O, lim o,max Output Short-Circuit Current All IO, s/c 140 mArms (VO≤250mV) ( Hiccup Mode ) Efficiency (V = 6Vdc) V = 0.6Vdc η 69.2 % IN O,set V = 12Vdc, T=25°C V = 1.2Vdc η 80.4 % IN A O, set I =I V = V V = 1.8Vdc η 85.5 % O O, max , O O,set O,set VO,set = 2.5Vdc η 88.9 % VO,set = 3.3Vdc η 91 % VO,set = 5.0Vdc η 93.3 % Switching Frequency All fsw ⎯ 600 ⎯ kHz 1 External capacitors may require using the new Tunable Loop feature to ensure that the module is stable as well as getting TM the best transient response. See the Tunable Loop section for details. June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 3 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current General Specifications Parameter Min Typ Max Unit Calculated MTBF (V =12V, V =5Vdc, I =0.8I , T =40°C) Per IN O O O, max A 138,941,752 Hours Telcordia SR-332 Issue3: Method 1, Case 3 Weight ⎯ 1.2 (0.042) ⎯ g (oz.) General 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 (VIN=VIN, min to VIN, max; Open collector or equivalent signal referenced to GND) Logic High (Enable pin open - Module ON) Input High Current All IIH — 1 mA Input High Voltage All VIH 3.0 — V V IN, max Logic Low (Module Off) Input Low Current All IIL — — 10 μA Input Low Voltage All VIL -0.3 — 0.3 V Turn-On Delay and Rise Times (IO=IO, max , VIN = VIN, nom, Vo to within ±1% of steady state) Case 1: Enable input is enabled and then input power is applied (delay from instant at which All Tdelay 5 msec VIN =VIN, min until Vo=10% of Vo,set) Case 2: Input power is applied for at least one second and then Enable input is set enabled (delay from All Tdelay 5.2 msec instant at which Enable is enabled until Vo=10% of Vo, Output voltage Rise time (time for Vo to rise from 10% All Trise 1.4 msec of Vo,set to 90% of Vo, set) Output voltage overshoot 3.0 % V O, set o IO= IO, max; VIN = VIN, min to VIN, max, TA = 25 C Overtemperature Protection All T 117 ºC ref Input Undervoltage Lockout Turn-on Threshold All 2.95 Vdc Turn-off Threshold All 2.8 Vdc June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 4 Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves o The following figures provide typical characteristics for the NQR002 (0.6V, 2A) at 25 C 90 2.5 NC 80 2.0 70 Vin = 3V 1.5 60 1.0 50 Vin = 14V Vin = 12V 0.5 40 30 0.0 00.5 1 1.5 2 25 35 45 55 65 75 85 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 2. Derating Output Current versus Ambient Temperature Figure 1. Converter Efficiency versus Output Current. and Airflow. TIME, t (2μs/div) TIME, t (500μs /div) Figure 3. Typical output ripple and noise (VIN = 12V, Io = Figure 4. Transient Response to Dynamic Load Change from 0% Io,max). to 50% to 0% . TIME, t (5ms/div) TIME, t (5ms/div) Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max, Figure 6. Typical Start-up Using Input Voltage (VIN = 12V, Cext= Vin=12V,Cext= 22uF). 22uF ,Io = Io,max). June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 5 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE EFFICIENCY, η (%) VO (V) (200mV/div) VON/OFF (V) (5V/div) V (V) (20mV/div) O OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, Io (A) ………IO (A) (1Adiv) VO (V) (100mV/div) VO (V) (200mV/div) VIN (V) (5V/div) Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves o The following figures provide typical characteristics for the NQR002 (1.2V, 2A) at 25 C 100 2.5 NC 90 2.0 80 Vin = 3V 1.5 70 1.0 Vin = 14V 60 Vin = 12V 0.5 50 40 0.0 00.5 11.5 2 25 35 45 55 65 75 85 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 8. Derating Output Current versus Ambient Temperature Figure 7. Converter Efficiency versus Output Current. and Airflow. TIME, t (2μs/div) TIME, t (500μs /div) Figure 9. Typical output ripple and noise (VIN = 12V, Io = Figure 10. Transient Response to Dynamic Load Change from Io,max). 0% to 50% to 0%. TIME, t (5ms/div) TIME, t (5ms/div) Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max, Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Vin=12V,Cext= 22uF). Cext= 22uF, Io = Io,max). June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 6 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE EFFICIENCY, η (%) V (V) (500mV/div) V (V) (5V/div) O ON/OFF V (V) (20mV/div) O OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE I (A) (1Adiv) V (V) (100mV/div) OUTPUT CURRENT, Io (A) O O V (V) (500mV/div) V (V) (5V/div) O IN Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves o The following figures provide typical characteristics for the NQR002 (1.8V, 2A) at 25 C. 2.5 100 NC 90 2.0 Vin = 12V Vin = 3V 80 1.5 Vin = 14V 70 1.0 60 0.5 50 40 0.0 00.5 11.5 2 25 35 45 55 65 75 85 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 14. Derating Output Current versus Ambient Temperature Figure 13. Converter Efficiency versus Output Current. and Airflow. TIME, t (2μs/div) TIME, t (500μs /div) Figure 15. Typical output ripple and noise (VIN = 12V, Io = Figure 16. Transient Response to Dynamic Load Change from 0% Io,max). to 50% to 0%. TIME, t (5ms/div) TIME, t (5ms/div) Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max, Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Vin=12V,Cext=22uF,). Cext=22uF, Io = Io,max). June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 7 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE EFFICIENCY, η (%) VO (V) (500mV/div) VON/OFF (V) (5V/div) VO (V) (20mV/div) OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE I (A) (1Adiv) V (V) (100mV/div) OUTPUT CURRENT, Io (A) O O V (V) (500mV/div) V (V) (5V/div) O IN Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves o The following figures provide typical characteristics for the NQR002 (2.5V, 2A) at 25 C. 100 2.5 NC Vin = 12V 90 2.0 Vin = 3V 80 1.5 Vin = 14V 70 1.0 60 0.5 50 40 0.0 00.5 11.5 2 25 35 45 55 65 75 85 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 20. Derating Output Current versus Ambient Figure 19. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (2μs/div) TIME, t (500μs /div) Figure 21. Typical output ripple and noise (VIN = 12V, Io = Figure 22. Transient Response to Dynamic Load Change from Io,max). 0% to 50% to 0%. TIME, t (5ms/div) TIME, t (5ms/div) Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max, Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Cext= Vin=12V,Cext= 22uF ). 22uF, Io = Io,max). June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 8 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE EFFICIENCY, η (%) VO (V) (1V/div) VON/PFF (V) (5V/div) VO (V) (20mV/div) OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE I (A) (1Adiv) V (V) (100mV/div) OUTPUT CURRENT, Io (A) O O V (V) (1V/div) V (V) (5V/div) O IN Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves o The following figures provide typical characteristics for the NQR002 (3.3V, 2A) at 25 C. 2.5 100 NC 95 2.0 Vin = 12V 90 Vin = 4.5V 85 1.5 Vin = 14V 80 1.0 75 70 0.5 65 0.0 60 00.5 11.5 2 25 35 45 55 65 75 85 O OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 26. Derating Output Current versus Ambient Temperature Figure 25. Converter Efficiency versus Output Current. and Airflow. TIME, t (2μs/div) TIME, t (500μs /div) Figure 27. Typical output ripple and noise (VIN = 12V, Io = Figure 28. Transient Response to Dynamic Load Change from 0% Io,max). to 50% to 0%. TIME, t (5ms/div) TIME, t (5ms/div) Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max, Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Cext= Vin=12V,Cext= 22uF) 22uF, Io = Io,max). June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 9 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE EFFICIENCY, η (%) VO (V) (1V/div) VON?OFF (V) (5V/div) VO (V) (20mV/div) OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, Io (A) IO (A) (1Adiv) VO (V) (100mV/div) VO (V) (1V/div) VIN (V) (5V/div) Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Characteristic Curves o The following figures provide typical characteristics for the NQR002 (5V, 2A) at 25 C. 100 2.5 NC Vin = 6.5V 95 2.0 Vin = 12V 90 1.5 85 Vin = 14V 1.0 80 0.5 75 70 0.0 00.5 11.5 2 25 35 45 55 65 75 85 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 32. Derating Output Current versus Ambient Figure 31. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (2μs/div) TIME, t (500μs /div) Figure 33. Typical output ripple and noise (VIN = 12V, Io = Figure 34. Transient Response to Dynamic Load Change from Io,max). 0% to 50% to 0%. TIME, t (5ms/div) TIME, t (5ms/div) Figure 35. Typical Start-up Using On/Off Voltage (Io = Io,max, Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io = Vin=12V,Cext= 22uF). Io,max, Cext= 22uF). June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 10 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE EFFICIENCY, η (%) VO (V) (2V/div) VON/OFF (V) (5V/div) VO (V) (20mV/div) OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE I (A) (1Adiv) V (V) (100mV/div) OUTPUT CURRENT, Io (A) O O Vo (V) (2V/div) V (V) (5V/div) IN Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Test Configurations Design Considerations Input Filtering CURRENT PROBE TO OSCILLOSCOPE The NQR002A0X4 2A module should be connected to a low L TEST ac-impedance source. A highly inductive source can affect V (+) IN 1μH the stability of the module. An input capacitance must be placed directly adjacent to the input pin of the module, to C IN minimize input ripple voltage and ensure module stability. C 1000μF S Electrolytic 2x100μF To minimize input voltage ripple, low-ESR ceramic or polymer E.S.R.<0.1Ω Tantalum capacitors are recommended at the input of the module. @ 20°C 100kHz Figure 4 shows the input ripple voltage for various output COM voltages at 2A of load current with 1x10 µF or 1x22 µF ceramic capacitors and an input of 12V. NOTE: Measure input reflected ripple current with a simulated source inductance (L ) of 1μH. Capacitor C offsets TEST S 120 possible battery impedance. Measure current as shown above. 1x10uF 110 1x22uF Figure 1. Input Reflected Ripple Current Test Setup. 100 90 COPPER STRIP 80 70 V O (+) RESISTIVE LOAD 60 1uF . 10uF SCOPE 50 COM 40 30 GROUND PLANE 20 NOTE: All voltage measurements to be taken at the module 0.51 1.52 2.5 3 3.54 4.55 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 Output Voltage (Vdc) resistance. Figure 2. Output Ripple and Noise Test Setup. Figure 4. Input ripple voltage for various output voltages with 1x10 µF or 1x22 µF ceramic capacitors at the input (2A load). Input voltage is 12V. R R R R distribution contact contact distribution V (+) V IN O Output Filtering R LOAD V VIN O The NQR002A0X4 2A modules are designed for low output ripple voltage and will meet the maximum output ripple specification with no external capacitors. However, additional R R R R distribution contact contact distribution output filtering may be required by the system designer for a COM COM number of reasons. First, there may be a need to further reduce the output ripple and noise of the module. Second, the NOTE: All voltage measurements to be taken at the module dynamic response characteristics may need to be customized terminals, as shown above. If sockets are used then Kelvin connections are required at the module terminals to a particular load step change. to avoid measurement errors due to socket contact resistance. To reduce the output ripple and improve the dynamic response Figure 3. Output Voltage and Efficiency Test Setup. to a step load change, additional capacitance at the output can be used. Low ESR ceramic and polymer are recommended V . I O O to improve the dynamic response of the module. Figure 5 Efficiency η = x 100 % provides output ripple information for different external V . I IN IN capacitance values at various Vo and for a load current of 2A. For stable operation of the module, limit the capacitance to less than the maximum output capacitance as specified in the electrical specification table. Optimal performance of the TM module can be achieved by using the Tunable Loop feature described later in this data sheet. June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 11 BATTERY Input Ripple Voltage (mVp-p) Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Feature Descriptions 20 1x22uF External Cap Enable (Remote On/Off) 18 2x22uF External Cap The NQR002A0X4 2A power modules feature a Enable pin with positive logic for remote On/Off operation. If the Enable pin is 16 not being used, leave the pin open (the module will be ON). The 14 Enable signal (V ) is referenced to ground. During a Logic On/Off High on the Enable pin, the module remains ON. During Logic- 12 Low, the module is turned OFF. 10 VIN+ MODULE 8 20K PWM Enable 0.5 1.5 2.5 3.5 4.5 Rpullup 20K Output Voltage(Volts) I Q3 Figure 5. Output ripple voltage for various output voltages ON/OFF 10K ON/OFF with external 1x22 µF, 2x22 µF ceramic capacitors at the Q2 + 10K output (2A load). Input voltage is 12V. V ON/OFF 10K 10K Q1 GND _ Safety Considerations For safety agency approval the power module must be installed in compliance with the spacing and separation Figure 6. Remote On/Off Implementation(positive logic). requirements of the end-use safety agency standards, i.e., UL 60950-1, CSA C22.2 No. 60950-1-03, and VDE 0850:2001-12 (EN60950-1) Licensed. Overcurrent Protection For the converter output to be considered meeting the To provide protection in a fault (output overload) condition, the requirements of safety extra-low voltage (SELV), the input must unit is equipped with internal current-limiting circuitry and can meet SELV requirements. The power module has extra-low endure current limiting continuously. At the point of voltage (ELV) outputs when all inputs are ELV. current-limit inception, the unit enters hiccup mode. The unit An input fuse for the module is recommended. Due to the wide operates normally once the output current is brought back into input voltage and output voltage ranges of the module, a 4A, its specified range. The average output current during hiccup is 125Vdc fast acting fuse is recommended 10% IO, max. Overtemperature Protection To provide protection in a fault condition, these modules are equipped with a thermal shutdown circuit. The unit will shut down if the overtemperature threshold of 130ºC is exceeded at the thermal reference point Tref. The thermal shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. Once the unit goes into thermal shutdown it will then wait to cool before attempting to restart. Input Undervoltage Lockout At input voltages below the input undervoltage lockout limit, the module operation is disabled. The module will begin to operate at an input voltage above the undervoltage lockout turn-on threshold. Output Voltage Programming The output voltage of the NQR002A0X4 2A module can be programmed to any voltage from 0.6dc to 5.5Vdc by connecting a resistor between the Trim+ and GND pins of the module. Certain restrictions apply on the output voltage set point depending on the input voltage. These are shown in the Output Voltage vs. Input Voltage Set Point Area plot in Fig. 7. The Lower Limit curve shows that for output voltages of 2.4V and higher, the input voltage needs to be larger than the minimum of 3V. June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 12 Ripple(mVp-p) Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Table 1 Feature Descriptions (continued) VO, set (V) Rtrim (KΩ) 0.6 Open 16 0.9 40 1.0 30 14 1.2 20 12 1.5 13.33 10 1.8 10 8 2.5 6.316 6 3.3 4.444 4 5.0 2.727 2 0 By using a ±0.5% tolerance trim resistor with a TC of ±25ppm, a 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 set point tolerance of ±1.5% can be achieved as specified in Output Voltage (V) the electrical specification. The POL Programming Tool available at www.lineagepower.com under the Design Tools Figure 7. Output Voltage vs. Input Voltage Set Point Area plot section, helps determine the required trim resistor needed for a showing limits where the output voltage can be set for specific output voltage. different input voltages. Without an external resistor between Trim+ and GND pins, the Vout V (+) V (+) IN O output of the module will be 0.6Vdc. To calculate the value of the trim resistor, Rtrim for a desired output voltage, use the following equation: ON/OFF LOAD  12  TRIM Rtrim = kΩ   () Vo − 0.6   R trim Rtrim is the external resistor in kΩ GND Vo is the desired output voltage Figure 8. Circuit configuration for programming output Table 1 provides Rtrim values required for some common voltage using an external resistor. output voltages. Voltage Margining Output voltage margining can be implemented in the NQR002A0X4 2A modules by connecting a resistor, Rmargin-up, from the Trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, R , from margin-down the Trim pin to output pin for margining-down. Figure 9 shows the circuit configuration for output voltage margining. The POL Programming Tool, available at www.lineagepower.com under the Design Tools section, also calculates the values of Rmargin-up and Rmargin-down for a specific output voltage and % margin. Please consult your local Lineage Power Field Application Engineer or Account Manager for additional details. June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 13 Input Voltage (v) Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Feature Descriptions (continued) right value of external R-C to tune the module for best transient performance and stable operation for other output Vo capacitance values. Rmargin-down VOUT MODULE Q2 RTUNE Trim MODULE Rmargin-up CTUNE Rtrim TRIM Q1 RTrim GND GND Figure. 10. Circuit diagram showing connection of R and TUME C to tune the control loop of the module. TUNE Figure 9. Circuit Configuration for margining Output voltage. Table 2. Recommended values of RTUNE and CTUNE to obtain Monotonic Start-up and Shutdown transient deviation of 2% of Vout for a 1A step load with The NQR002A0X4 2A modules have monotonic start-up and Vin=12V. shutdown behavior for any combination of rated input voltage, Co 1x47μF 2x47μF 3x47μF 4x47μF 10x47μF output current and operating temperature range. RTUNE 220 150 100 100 100 TM Tunable Loop CTUNE 3900pF 10nF 18nF 18nF 22nF The NQR002A0X4 2A modules have a new feature that optimizes transient response of the module called Tunable TM . External capacitors are usually added to improve Loop output voltage transient response due to load current changes. Table 3. General recommended values of of R and C TUNE TUNE Sensitive loads may also require additional output capacitance for Vin=12V and various external ceramic capacitor to reduce output ripple and noise. Adding external combinations. capacitance however affects the voltage control loop of the Vo 5V 3.3V 2.5V 1.8V 1.2V 0.6V module, typically causing the loop to slow down with sluggish 330μF response. Larger values of external capacitance could also Co 1x22μF1x47μF2x47μF2x47μF 3x47μF Polymer cause the module to become unstable. R 220 220 150 150 100 100 TUNE C TUNE2200pF3900pF 10nF 10nF 18nF 68nF To use the additional external capacitors in an optimal manner, ΔV 81mV 61mV 35mV 34mV 23mV 12mV TM the Tunable Loop feature allows the loop to be tuned externally by connecting a series R-C between the VOUT and TRIM pins of the module, as shown in Fig. 10. This R-C allows the user to externally adjust the voltage loop feedback compensation of the module to match the filter network Table 4. Recommended values of RTUNE and CTUNE to obtain connected to the output of the module. transient deviation of ≤2% of Vout for a 1A step load with Vin=5V Recommended values of R and C are given in Tables 2 TUNE TUNE Vo 3.3V 2.5V 1.8V 1.2V 0.6V and 3. Table 2 lists recommended values of R and C in TUNE TUNE 330μF order to meet 2% output voltage deviation limits for some Co 1x47μF 2x47μF2x47μF 3x47μF Polymer common output voltages in the presence of a 1A to 2A step RTUNE 220 150 150 100 100 change (50% of full load), with an input voltage of 12V. Table 3 C 3900pF 10nF 10nF 18nF 68nF TUNE shows the recommended values of RTUNE and CTUNE for different ΔV 62mV 35mV 34mV 23mV 12mV values of ceramic output capacitors up to TBD, again for an input voltage of 12V. The value of RTUNE should never be lower than the values shown in Tables 3 and 4. Please contact your Lineage Power technical representative to obtain more details of this feature as well as for guidelines on how to select the June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 14 Data Sheet GE NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Table 5. Recommended values of RTUNE and CTUNE to obtain transient deviation of ≤2% of Vout for a 1A step load with Vin=3.3V Vo 2.5V 1.8V 1.2V 0.6V 330μF Co 3x47μF 2x47μF 3x47μF Polymer RTUNE 100 150 100 100 C 18nF 10nF 18nF 68nF TUNE ΔV 48mV 34mV 23mV 12mV June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 15 D Data Shee et G GE N NQR002A A0X4: No on-Isolate ed DC-D DC Power r Module es 3V Vdc –14Vdc c input; 0.6 6Vdc to 5.5Vdc output; 2A Outpu ut Current T Thermal Co onsideratio ons P Power modules s operate in a v variety of therm mal environments; h however, sufficient cooling sh hould be provid ded to help ens sure reliable operation. C Considerations include ambie ent temperatur re, airflow, mod dule p power dissipation, and the ne eed for increase ed reliability. A reduction in the e operating tem mperature of th he module will result in an incr rease in reliability. The therm mal data presen nted h here is based on physical mea asurements taken in a wind tunnel. The test set-up is show wn in Figure 11 1. The preferre ed a airflow direction n for the modu ule is in Figure 1 12. 50 0.8 W Wind Tunnel [2.00] PWBs P Power Module Figure 12 2. Tref Tempera ature measure ement location. 76.2 P Probe Location Post t solder Clean ning and Dry ying Consider rations ffor measuring [3.0] a airflow and Post solder cleaning g is usually the e final circuit-board assembly y a ambient proce ess prior to ele ectrical board testing. The res sult of 7.24 ttemperature [0.285] inade equate cleanin ng and drying c can affect both h the reliability of a p power module and the testab bility of the finis shed circuit-board assem mbly. For guida ance on approp priate soldering g, clean ning and drying g procedures, r refer to Board M Mounted Powe er Modu ules: Soldering and Cleaning A Application Not te. A Air Thro ough-Hole Le ead-Free Sold dering Inform mation Flo ow These RoHS-compliant through-h hole products u use the SAC F Figure 11. The ermal Test Set- -up. (Sn/A Ag/Cu) Pb-free solder and RoH HS-compliant c components. They are designed t to be processe ed through sing gle or dual wav ve solde ering machines s. The pins hav ve an RoHS-compliant finish T The thermal ref ference point, T T used in the e specifications s of ref that is compatible w with both Pb and Pb-free wav ve soldering thermal deratin ng curves is sho own in Figure 1 12. For reliable e o proce esses. A maxim mum preheat ra ate of 3°C/s is suggested. Th he o operation this t temperature sh hould not exceed 120 C. wave e preheat process should be s such that the t temperature of f T The output pow wer of the module should not exceed the rat ted the p power module board is kept b below 210°C. F For Pb solder, p power of the module (Vo,set x x Io,max). the re ecommended pot temperatu ure is 260°C, wh hile the Pb-free e solde er pot is 270°C max. Not all R RoHS-complian nt through-hole e P Please refer to t the Application n Note “Therma al Characteriza ation products can be processed with p paste-through- -hole Pb or Pb- - P Process For Open-Frame Board-Mounted Po ower Modules” ” for a free r reflow process s. If additional information is needed, please e d detailed discuss sion of therma al aspects inclu uding maximum m consult with your Lineage Power representative e for more d device tempera atures. detaiils. Jun ne 18, 2014 © ©2014 General Electric Company y. All rights reserv ved. Page e 16 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Example Application Circuit Requirements: Vin: 12V Vout: 1.8V Iout: 1A max., worst case load transient is from 1A to 1.5A ΔVout: 1.5% of Vout (27mV) for worst case load transient Vin, ripple 1.5% of Vin (180mV, p-p) Vout+ Vin+ VIN VOUT RTUNE MODULE MODULE + CI1 CI2 CO1 CTUNE ON/OFF TRIM Q3 RTrim GND CI1 1x10μF/16V ceramic capacitor (e.g. TDK C Series) CI2 100μF/16V bulk electrolytic CO1 1x47μF/6.3V ceramic capacitor (e.g. TDK C Series, Murata GRM32ER60J476ME20) CTune 3900pF ceramic capacitor (can be 1206, 0805 or 0603 size) RTune 180 ohms SMT resistor (can be 1206, 0805 or 0603 size) RTrim 5kΩ SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%) June 18, 2014 ©2014 General Electric Company. All rights reserved. Page 17 G GE D Data Shee et N NQR002A A0X4: No on-Isolate ed DC-D DC Power r Module es 3V Vdc –14Vdc c input; 0.6 6Vdc to 5.5Vdc output; 2A Outpu ut Current M Mechanical Outline D Dimensions are e in millimeters s and (inches). T Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless oth herwise indicat ted] x.xx x mm ± 0.25 m mm (x.xxx in ± 0 0.010 in.) Jun ne 18, 2014 © ©2014 General Electric Company y. All rights reserv ved. Page e 18 G GE D Data Shee et N NQR002A A0X4: No on-Isolate ed DC-D DC Power r Module es 3V Vdc –14Vdc c input; 0.6 6Vdc to 5.5Vdc output; 2A Outpu ut Current R Recommen nded Pad La ayout D Dimensions are e in millimeters s and (inches). T Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless oth herwise indicat ted] x.xx x mm ± 0.25 m mm (x.xxx in ± 0 0.010 in.) June 18, 2014 © ©2014 General Electric Company y. All rights reserv ved. Page e 19 GE Data Sheet NQR002A0X4: Non-Isolated DC-DC Power Modules 3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current Ordering Information Please contact your Lineage Power Sales Representative for pricing, availability and optional features. Table 4. Device Codes Input Output Output On/Off Connector Device Code Comcodes Voltage Range Voltage Current Logic Type NQR002A0X4Z 3 – 14Vdc 0.6 – 5.5Vdc 2A Positive SIP CC109171468 -Z refers to RoHS compliant parts Contact Us For more information, call us at USA/Canada: +1 888 546 3243, or +1 972 244 9288 Asia-Pacific: +86.021.54279977*808 Europe, Middle-East and Africa: +49.89.878067-280 India: +91.80.28411633 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. June 18, 2014 ©2014 General Electric Company. All International rights reserved. Version 1.0