Data Sheet October 1, 2009 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10Vdc - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A Output Current RoHS Compliant Features Compliant to RoHS EU Directive 2002/95/EC (-Z versions) Compliant to ROHS EU Directive 2002/95/EC with lead solder exemption (non-Z versions) Delivers up to 16A output current High efficiency - 92% at 3.3V full load (VIN = 12.0V) Small size and low profile: 33.0 mm x 13.46 mm x 8.28 mm (1.30 in x 0.53 in x 0.326 in) Low output ripple and noise High Reliability: Applications Calculated MTBF = 4.4M hours at 25oC Full-load Distributed power architectures Constant switching frequency (300 kHz) Intermediate bus voltage applications Telecommunications equipment Output voltage programmable from 0.75 Vdc to 5.5Vdc 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 Microprocessor powered applications Remote On/Off Remote Sense Output overcurrent protection (non-latching) Wide operating temperature range (-40C to 85C) UL* 60950-1Recognized, CSA C22.2 No. 60950-103 Certified, and VDE 0805:2001-12 (EN60950-1) Licensed ISO** 9001 and ISO 14001 certified manufacturing facilities Description Austin SuperLynxTM 12V SMT (surface mount technology) power modules are non-isolated DC-DC converters that can deliver up to 16A of output current with full load efficiency of 92% at 3.3V output. These modules provide a precisely regulated output voltage ranging from 0.75Vdc to 5.5Vdc, programmable via an external resistor over a wide range of input voltage (VIN = 10 - 14Vdc). * 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 Document No: DS03-080 ver. 1.69 PDF name: superlynx_12v_smt_ds.pdf Data Sheet October 1, 2009 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Device Symbol Min Max Unit All VIN -0.3 15 Vdc All TA -40 85 C All Tstg -55 125 C Input Voltage Continuous Operating Ambient Temperature (see Thermal Considerations section) Storage Temperature 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 10.0 12.0 14.0 Vdc Maximum Input Current All IIN,max 9.5 Adc VO,set = 0.75 Vdc IIN,No load 40 mA VO,set = 5.0Vdc IIN,No load 100 mA All IIN,stand-by 2 mA Inrush Transient All It Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1H source impedance; VIN, min to VIN, max, IO= IOmax ; See Test configuration section) All 30 Input Ripple Rejection (120Hz) All 30 (VIN=10.0V to 14.0V, IO=IO, max ) Input No Load Current (VIN = 12.0Vdc, Io = 0, module enabled) Input Stand-by Current (VIN = 12.0Vdc, module disabled) 2 0.4 2 As mAp-p 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 fastacting fuse with a maximum rating of 15 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. LINEAGE POWER 2 Data Sheet October 1, 2009 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Electrical Specifications (continued) Parameter Output Voltage Set-point Device Symbol Min Typ Max Unit All VO, set -2.0 VO, set +2.0 % VO, set All VO, set -2.5% +3.5% % VO, set All VO 0.7525 5.5 Vdc (VIN=IN, min, IO=IO, max, TA=25C) Output Voltage (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range Selected by an external resistor Output Regulation Line (VIN=VIN, min to VIN, max) All 0.3 % VO, set Load (IO=IO, min to IO, max) All 0.4 % VO, set Temperature (Tref=TA, min to TA, max) All 0.4 % VO, set RMS (5Hz to 20MHz bandwidth) All 12 30 mVrms Peak-to-Peak (5Hz to 20MHz bandwidth) All 30 75 mVpk-pk F Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Cout = 1F ceramic//10Ftantalum capacitors) External Capacitance ESR 1 m All CO, max 1000 ESR 10 m All CO, max 5000 F Output Current All Io 0 16 Adc Output Current Limit Inception (Hiccup Mode ) All IO, lim 180 % Io All IO, s/c 3 Adc (VO= 90% of VO, set) Output Short-Circuit Current (VO250mV) ( Hiccup Mode ) Efficiency VIN= VIN, nom, TA=25C IO=IO, max , VO= VO,set Switching Frequency VO,set = 0.75Vdc 79.0 % VO, set = 1.2Vdc 85.0 % VO,set = 1.5Vdc 87.0 % VO,set = 1.8Vdc 88.0 % VO,set = 2.5Vdc 90.5 % VO,set = 3.3Vdc 92.0 % VO,set = 5.0Vdc 94.0 % All fsw 300 kHz All Vpk 200 mV Dynamic Load Response (dIo/dt=2.5A/s; VIN = VIN, nom; TA=25C) Load Change from Io= 50% to 100% of Io,max; 1F ceramic// 10 F tantalum Peak Deviation Settling Time (Vo<10% peak deviation) All ts 25 s (dIo/dt=2.5A/s; VIN = VIN, nom; TA=25C) Load Change from Io= 100% to 50%of Io,max: 1F ceramic// 10 F tantalum All Vpk 200 mV All ts 25 s Peak Deviation Settling Time (Vo<10% peak deviation) LINEAGE POWER 3 Data Sheet October 1, 2009 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit All Vpk 100 mV Dynamic Load Response (dIo/dt=2.5A/s; V VIN = VIN, nom; TA=25C) Load Change from Io= 50% to 100% of Io,max; Co = 2x150 F polymer capacitors Peak Deviation Settling Time (Vo<10% peak deviation) All ts 50 s (dIo/dt=2.5A/s; VIN = VIN, nom; TA=25C) Load Change from Io= 100% to 50%of Io,max: Co = 2x150 F polymer capacitors Peak Deviation All Vpk 100 mV Settling Time (Vo<10% peak deviation) All ts 50 s General Specifications Parameter Min Calculated MTBF (IO=IO, max, TA=25C) Weight LINEAGE POWER Typ Max 4,444,000 5.6 (0.2) Unit Hours g (oz.) 4 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 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 Von/Off All VIH Ion/Off All IIH Von/Off All VIL Ion/off All IIL All Tdelay All All Min Typ Max Unit VIN V 10 A 0.3 V 1 mA 3 msec Tdelay 3 msec Trise 4 6 msec 1 % VO, set 0.5 125 Remote On/Off Signal interface (VIN=VIN, min to VIN, max; Open collector pnp or equivalent Compatible, Von/off signal referenced to GND See feature description section) Logic High (On/Off Voltage pin open - Module ON) Logic Low (Von/Off 0.3V - Module OFF) Turn-On Delay and Rise Times o (IO=IO, max , VIN = VIN, nom, TA = 25 C, ) Case 1: On/Off input is set to Logic Low (Module ON) and then input power is applied (delay from instant at which VIN =VIN, min until Vo=10% of Vo,set) 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) Output voltage Rise time (time for Vo to rise from 10% of Vo,set to 90% of Vo, set) Output voltage overshoot - Startup o IO= IO, max; VIN = 3.0 to 5.5Vdc, TA = 25 C Remote Sense Range Overtemperature Protection All Tref C (See Thermal Consideration section) Input Undervoltage Lockout Turn-on Threshold All 8.2 V Turn-off Threshold All 8.0 V LINEAGE POWER 5 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 Characteristic Curves 90 94 88 92 86 90 84 88 EFFICIENCY, (%) EFFICIENCY, (%) The following figures provide typical characteristics for the Austin SuperLynxTM 12V SMT modules at 25C. 82 80 78 76 Vin=14V 74 Vin=12V 72 Vin=10V 70 0 4 8 12 86 84 82 80 Vin=14V 78 Vin=12V 76 Vin=10V 74 0 16 OUTPUT CURRENT, IO (A) 92 86 90 84 88 EFFICIENCY, (%) EFFICIENCY, (%) 94 88 82 80 78 Vin=14V Vin=12V 72 Vin=10V 70 0 4 8 12 16 86 84 82 80 Vin=14V 78 Vin=12V 76 Vin=10V 74 0 16 OUTPUT CURRENT, IO (A) 4 8 12 16 OUTPUT CURRENT, IO (A) Figure 2. Converter Efficiency versus Output Current (Vout = 1.2Vdc). Figure 5. Converter Efficiency versus Output Current (Vout = 2.5Vdc). 92 96 90 94 88 92 90 86 EFFICIENCY, (%) EFFICIENCY, (%) 12 Figure 4. Converter Efficiency versus Output Current (Vout = 1.8Vdc). 90 74 8 OUTPUT CURRENT, IO (A) Figure 1. Converter Efficiency versus Output Current (Vout = 0.75Vdc). 76 4 84 82 80 78 Vin=14V 76 Vin=12V 74 Vin=10V 72 0 4 8 12 86 84 82 80 Vin=14V 78 Vin=12V 76 Vin=10V 74 16 OUTPUT CURRENT, IO (A) Figure 3. Converter Efficiency versus Output Current (Vout = 1.5Vdc). LINEAGE POWER 88 0 4 8 12 16 OUTPUT CURRENT, IO (A) Figure 6. Converter Efficiency versus Output Current (Vout = 3.3Vdc). 6 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 Characteristic Curves (continued) TM Io =8A 8 Io =16A 6 4 2 0 8 9 10 11 12 14 TIME, t (5 s/div) TIME, t (2s/div) Figure 9. Typical Output Ripple and Noise (Vin = 12V dc, Vo = 5.0 Vdc, Io=16A). LINEAGE POWER IO (A) (2A/div) TIME, t (5 s/div) VO (V) (50mV/div) Figure 11. Transient Response to Dynamic Load Change from 100% to 50% of full load (Vo = 5.0 Vdc). IO (A) (2A/div) VO (V) (20mV/div) OUTPUT VOLTAGE Figure 8. Typical Output Ripple and Noise (Vin = 12V dc, Vo = 2.5 Vdc, Io=16A). OUTPUT CURRENT, OUTPUT VOLTAGE TIME, t (2s/div) VO (V) (200mV/div) Figure 10. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 5.0Vdc). VO (V) (20mV/div) Figure 7. Input voltage vs. Input Current (Vout = 5.0Vdc). OUTPUT CURRENT, OUTPUT VOLTAGE 13 OUTPUT VOLTAGE INPUT VOLTAGE, VIN (V) VO (V) (200mV/div) Io =0A 10 12V SMT modules at 25C. IO (A) (2A/div) INPUT CURRENT, IIN (A) 12 OUTPUT CURRENT, OUTPUT VOLTAGE The following figures provide typical characteristics for the Austin SuperLynx TIME, t (10s/div) Figure 12. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 5.0 Vdc, Cext = 2x150 F Polymer Capacitors). 7 Data Sheet October 1, 2009 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Characteristic Curves (continued) TM VOn/off (V) (5V/div) VOV) (2V/div) VIN (V) (5V/div) Vo (V) (2V/div) TIME, t (2 ms/div) Figure 16. Typical Start-Up with application of Vin with low-ESR polymer capacitors at the output (7x150 F) (Vin = 12Vdc, Vo = 5.0Vdc, Io = 16A, Co = 1050 F). OUTPUT VOLTAGE On/Off VOLTAGE OUTPUT VOLTAGE Figure 13. Transient Response to Dynamic Load Change from 100% of 50% full load (Vo = 5.0 Vdc, Cext = 2x150 F Polymer Capacitors). OUTPUT VOLTAGE, INPUT VOLTAGE TIME, t (10s/div) TIME, t (2 ms/div) IO (A) (10A/div) VOn/off (V) (5V/div) VOV) (2V/div) TIME, t (2 ms/div) Figure 15. Typical Start-Up Using Remote On/Off with Low-ESR external capacitors (7x150uF Polymer) (Vin = 12Vdc, Vo = 5.0Vdc, Io = 16A, Co = 1050F). LINEAGE POWER TIME, t (2 ms/div) Figure 17 Typical Start-Up with Prebias (Vin = 12Vdc, Vo = 5.0Vdc, Io = 1A, Vbias =3.3 Vdc). OUTPUT CURRENT, On/Off VOLTAGE OUTPUT VOLTAGE Figure 14. Typical Start-Up Using Remote On/Off (Vin = 12Vdc, Vo = 5.0Vdc, Io =16A). 12V SMT modules at 25C. VOV) (1V/div) OUTPUT CURRENT OUTPUTVOLTAGE IO (A) (2A/div) VO (V) (100mV/div) The following figures provide typical characteristics for the Austin SuperLynx TIME, t (10ms/div) Figure 18. Output short circuit Current (Vin = 12Vdc, Vo = 0.75Vdc). 8 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 Characteristic Curves (continued) 18 18 16 16 OUTPUT CURRENT, Io (A) OUTPUT CURRENT, Io (A) The following figures provide thermal derating curves for the Austin SuperLynx 14 12 10 NC 8 100 LFM 6 200 LFM 4 300 LFM 2 400 LFM 0 20 30 40 50 60 70 O 80 90 AMBIENT TEMPERATURE, TA C TM 12V SMT modules. 14 12 10 NC 8 6 4 2 0 100 LFM 200 LFM 300 LFM 400 LFM 20 30 40 50 60 70 80 90 O AMBIENT TEMPERATURE, TA C Figure 19. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 12Vdc, Vo=0.75Vdc). Figure 22. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 12Vdc, Vo=5.0 Vdc). 18 OUTPUT CURRENT, Io (A) 16 14 12 10 NC 8 6 4 2 0 100 LFM 200 LFM 300 LFM 400 LFM 20 30 40 50 60 70 80 90 O AMBIENT TEMPERATURE, TA C Figure 20. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 12Vdc, Vo=1.8 Vdc). 18 OUTPUT CURRENT, Io (A) 16 14 12 10 NC 8 6 4 2 0 100 LFM 200 LFM 300 LFM 400 LFM 20 30 40 50 60 70 80 90 O AMBIENT TEMPERATURE, TA C Figure 21. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 12Vdc, Vo=3.3 Vdc). LINEAGE POWER 9 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 Test Configurations Design Considerations CURRENT PROBE TO OSCILLOSCOPE VIN(+) BATTERY CIN CS 1000F Electrolytic 2x100F Tantalum E.S.R.<0.1 @ 20C 100kHz COM NOTE: Measure input reflected ripple current with a simulated source inductance (LTEST) of 1H. Capacitor CS offsets possible battery impedance. Measure current as shown above. Figure 23. Input Reflected Ripple Current Test Setup. COPPER STRIP VO (+) TM The Austin SuperLynx 12V SMT module should be connected to a low-impedance source. A highly inductive source can affect the stability of the module. An input capacitance must be placed directly adjacent to the input pin of the module, to minimize input ripple voltage and ensure module stability. LTEST 1H Input Filtering In a typical application, 6x47 F low-ESR tantalum capacitors (AVX part #: TPSE476M025R0100, 47F 25V 100 m ESR tantalum capacitor) will be sufficient to provide adequate ripple voltage at the input of the module. To further minimize ripple voltage at the input, very low ESR ceramic capacitors are recommended at the input of the module. Figure 26 shows input ripple voltage (mVp-p) for various outputs with 6x47 F tantalum capacitors and with 6x22 F ceramic capacitor (TDK part #: C4532X5R1C226M) at full load. . RESISTIVE LOAD . 10uF 350 SCOPE COM GROUND PLANE 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 24. Output Ripple and Noise Test Setup. Rdistribution Rcontact Rcontact VIN(+) Rdistribution Input Ripple Voltage (mVp-p) 1uF 300 250 200 150 100 Tantalum 50 Ceramic 0 VO 0 Rdistribution RLOAD VO VIN Rcontact Rcontact COM Rdistribution COM 1 2 3 4 5 Output Voltage (Vdc) Figure 26. Input ripple voltage for various output with 6x47 F tantalum capacitors and with 6x22 F ceramic capacitors at the input (full load). 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. VO. IO Efficiency = LINEAGE POWER VIN. IIN x 100 % 10 6 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 Design Considerations (continued) Safety Considerations Output Filtering For safety agency approval the power module must be installed in compliance with the spacing and separation 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. TM The Austin SuperLynx 12V SMT module is designed for low output ripple voltage and will meet the maximum output ripple specification with 1 F ceramic and 10 F tantalum capacitors 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 ripple and noise of the module. Second, the dynamic response characteristics may need to be customized to a particular load step change. To reduce the output ripple and improve the dynamic response to a step load change, additional capacitance at the output can be used. Low ESR polymer and ceramic capacitors are recommended to improve the dynamic response of the module. For stable operation of the module, limit the capacitance to less than the maximum output capacitance as specified in the electrical specification table. LINEAGE POWER For the converter output to be considered meeting the requirements of safety extra-low voltage (SELV), the input must meet SELV requirements. The power module has extra-low voltage (ELV) outputs when all inputs are ELV. The input to these units is to be provided with a fastacting fuse with a maximum rating of 15A in the positive input lead. 11 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 temperatures beyond its rating. The module will automatically restarts after it cools down. Feature Description Remote On/Off TM The Austin SuperLynx 12V SMT power modules feature an On/Off pin for remote On/Off operation of the module. If not using the remote On/Off pin, leave the pin open (module will be On). The On/Off pin signal (Von/Off) is referenced to ground. To switch the module on and off using remote On/Off, connect an open collector pnp transistor between the On/Off pin and the VIN pin (See Figure 27). During a logic-high (On/Off pin is pulled high internal to the module) when the transistor is in the Off state, the power module is ON. The maximum allowable leakage current of the transistor when Von/off = VIN,max is 10A. During a logic-low when the transistor is turned-on, the power module is OFF. During this state VOn/Off is less than 0.3V and the maximum IOn/Off = 1mA. VIN(+) 20k Output Voltage Programming TM The output voltage of the Austin SuperLynx 12V can be programmed to any voltage from 0.75Vdc to 5.5Vdc by connecting a resistor (shown as Rtrim in Figure 28) between the Trim and GND pins of the module. Without an external resistor between the Trim and GND pins, the output of the module will be 0.7525Vdc. To calculate the value of the trim resistor, Rtrim for a desired output voltage, use the following equation: 10500 Rtrim = - 1000 Vo - 0.7525 Rtrim is the external resistor in Vo is the desired output voltage For example, to program the output voltage of the Austin SuperLynxTM 12V module to 1.8V, Rtrim is calculated as follows: 10500 - 1000 1.8 - 0.75 Rtrim = On/Off Ion/off + 20k 20k Css GND Rtrim = 9.024 k Enable Von/off V IN(+) V O(+) ON/OFF TRIM 20k Figure 27. Remote On/Off Implementation. Overcurrent Protection To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting circuitry and can endure current limiting continuously. At the point of current-limit inception, the unit enters hiccup mode. The unit operates normally once the output current is brought back into its specified range. The typical average output current during hiccup is 3A. Input Undervoltage Lockout At input voltages below the input undervoltage lockout limit, module operation is disabled. The module will begin to operate at an input voltage above the undervoltage lockout turn-on threshold. Overtemperature Protection To provide protection in a fault condition, the unit is equipped with a thermal shutdown circuit. The unit will shutdown if the thermal reference point Tref, exceeds o 125 C (typical), but the thermal shutdown is not intended as a guarantee that the unit will survive LINEAGE POWER LOAD Rtrim GND Figure 28. Circuit configuration to program output voltage using an external resistor. TM Austin SuperLynx 12Vdc can also be programmed by applying a voltage between the TRIM and GND pins (Figure 29). The following equation can be used to determine the value of Vtrim needed to obtain a desired output voltage Vo: Vtrim = (0.7 - 0.0667 x {Vo - 0.7525}) For example, to program the output voltage of a TM SuperLynx module to 3.3 Vdc, Vtrim is calculated as follows: Vtrim = (0.7 - 0.0667 x {3.3 - 0.7525}) Vtrim = 0.530V 12 Data Sheet October 1, 2009 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current The amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the output current. When using the trim feature, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power (Pmax = Vo,set x Io,max). Feature Descriptions (continued) Output Voltage Programming (continued) V IN(+) V O(+) ON/OFF LOAD TRIM + - GND Vtrim Figure 29. Circuit Configuration for programming Output voltage using external voltage source. Table 1 provides Rtrim values for some common output voltages, while Table 2 provides values of the external voltage source, Vtrim for same common output voltages. Table 1 VO, set (V) Rtrim (K) 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 Voltage Margining Output voltage margining can be implemented in the Austin SuperLynxTM 12V SMT 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, Rmargin-down, from the Trim pin to the Output pin for margining-down. Figure 30 shows the circuit configuration for output voltage margining. The POL Programming Tool, available at www.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 technical representative for additional details. Vo Rmargin-down Austin Lynx or Lynx II Series Q2 Trim Rmargin-up Table 2 Rtrim VO, set (V) Vtrim (V) 0.7525 Open 1.2 0.670 1.5 0.650 1.8 0.630 2.5 0.583 3.3 0.530 5.0 0.4166 Q1 GND Figure 30. Circuit Configuration for margining Output voltage. 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.lineagepower.com under the Design Tools section, helps determine the required external trim resistor needed for a specific output voltage. LINEAGE POWER 13 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 Feature Descriptions (continued) Remote Sense The Austin SuperLynxTM 12V 12V SMTpower modules have a Remote Sense feature to minimize the effects of distribution losses by regulating the voltage at the Remote Sense pin (See Figure 31). The voltage between the Sense pin and Vo pin must not exceed 0.5V. The amount of power delivered by the module is defined as the output voltage multiplied by the output current (Vo x Io). When using Remote Sense, the output voltage of the module can increase, which if the same output is maintained, increases the power output by the module. Make sure that the maximum output power of the module remains at or below the maximum rated power. When the Remote Sense feature is not being used, connect the Remote Sense pin to output pin. Rdistribution Rcontact Rcontact Rdistribution VIN(+) VO Sense RLOAD Rdistribution Rcontact Rcontact Rdistribution COM COM Figure 31. Remote sense circuit configuration. LINEAGE POWER 14 Data Sheet October 1, 2009 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Thermal Considerations 25.4_ (1.0) Wind Tunnel Power modules operate in a variety of thermal environments; however, sufficient cooling should always be provided to help ensure reliable operation. Considerations include ambient temperature, airflow, module power dissipation, and the need for increased reliability. A reduction in the operating temperature of the module will result in an increase in reliability. The thermal data presented here is based on physical measurements taken in a wind tunnel. The test set-up is shown in Figure 33. Note that the airflow is parallel to the short axis of the module as shown in figure 32. The derating data applies to airflow in either direction of the module's short axis. Air Flow Top View PWBs Power Module 76.2_ (3.0) x 5.97_ (0.235) Probe Loc ation for measuring airflow and ambient temperature Air flow Bottom View Figure 33. Thermal Test Set-up. Heat Transfer via Convection Increased airflow over the module enhances the heat transfer via convection. Thermal derating curves showing the maximum output current that can be delivered at different local ambient temperature (TA) for airflow conditions ranging from natural convection and up to 2m/s (400 ft./min) are shown in the Characteristics Curves section. Tref Figure 32. Tref Temperature measurement location. The thermal reference point, Tref used in the specifications is shown in Figure 32. For reliable o operation this temperature 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 BoardMounted Power Modules" for a detailed discussion of thermal aspects including maximum device temperatures. LINEAGE POWER 15 Data Sheet October 1, 2009 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Mechanical Outline Dimensions are in millimeters and (inches). Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated] x.xx mm 0.25 mm (x.xxx in 0.010 in.) LINEAGE POWER 16 Data Sheet October 1, 2009 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Recommended Pad Layout Dimensions are in millimeters and (inches). Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated] x.xx mm 0.25 mm (x.xxx in 0.010 in.) LINEAGE POWER Name Pin No. Function ON/OFF 1 Remote On/Off Control Positive Input Voltage Vin 2 GND 4 Common Ground Vout 5 Positive Output Voltage TRIM 6 Output Voltage Trim SENSE 7 Positive Remote Sense 17 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 Packaging Details The Austin SuperLynxTM 12V SMTversion is supplied in tape & reel as standard. Modules are shipped in quantities of 250 modules per reel. All Dimensions are in millimeters and (in inches). Reel Dimensions Outside diameter: Inside diameter: Tape Width: LINEAGE POWER 330.2 mm (13.00) 177.8 mm (7.00") 44.0 mm (1.73") 18 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 Surface Mount Information Pick and Place Reflow Soldering Information TM The Austin SuperLynx 12V SMT modules use an open frame construction and are designed for a fully automated assembly process. The modules are fitted with a label designed to provide a large surface area for pick and place operations. The label meets all the requirements for surface mount processing, as well as safety standards, and is able to withstand reflow o temperatures of up to 300 C. The label also carries product information such as product code, serial number and the location of manufacture. TM The Austin SuperLynx 12V SMT power modules are large mass, low thermal resistance devices and typically heat up slower than other SMT components. It is recommended that the customer review data sheets in order to customize the solder reflow profile for each application board assembly. The following instructions must be observed when soldering these units. Failure to observe these instructions may result in the failure of or cause damage to the modules, and can adversely affect long-term reliability. o Typically, the eutectic solder melts at 183 C, wets the land, and subsequently wicks the device connection. Sufficient time must be allowed to fuse the plating on the connection to ensure a reliable solder joint. There are several types of SMT reflow technologies currently used in the industry. These surface mount power modules can be reliably soldered using natural forced convection, IR (radiant infrared), or a combination of convection/IR. For reliable soldering the solder reflow profile should be established by accurately measuring the modules pin temperatures. Figure 34. Pick and Place Location. Nozzle Recommendations The module weight has been kept to a minimum by using open frame construction. Even so, these modules have a relatively large mass when compared to conventional SMT components. Variables such as nozzle size, tip style, vacuum pressure and placement speed should be considered to optimize this process. The minimum recommended nozzle diameter for reliable operation is 6mm. The maximum nozzle outer diameter, which will safely fit within the allowable component spacing, is 9 mm. Oblong or oval nozzles up to 11 x 9 mm may also be used within the space available. LINEAGE POWER Figure 35. Reflow Profile. An example of a reflow profile (using 63/37 solder) for the Austin SuperLynxTM 12V SMT power module is : * Pre-heating zone: room temperature to 183oC (2.0 to 4.0 minutes maximum) * Initial ramp rate < 2.5oC per second o o * Soaking Zone: 155 C to 183 C - 60 to 90 seconds typical (2.0 minutes maximum) o o * Reflow zone ramp rate:1.3 C to 1.6 C per second o o * Reflow zone: 210 C to 235 C peak temperature - 30 to 60 seconds (90 seconds maximum 19 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Surface Mount Information (continued) Lead Free Soldering The -Z version Austin SuperLynx 12V SMT modules are lead-free (Pb-free) and RoHS compliant and are both forward and backward compatible in a Pb-free and a SnPb soldering process. Failure to observe the instructions below may result in the failure of or cause damage to the modules and can adversely affect long-term reliability. Pb-free Reflow Profile Power Systems will comply with J-STD-020 Rev. C (Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices) for both Pb-free solder profiles and MSL classification procedures. This standard provides a recommended forced-air-convection reflow profile based on the volume and thickness of the package (table 4-2). The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). The recommended linear reflow profile using Sn/Ag/Cu solder is shown in Figure. 36. MSL Rating The Austin SuperLynx 12V SMT modules have a MSL rating of 2. Storage and Handling The recommended storage environment and handling procedures for moisture-sensitive surface mount packages is detailed in J-STD-033 Rev. A (Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface Mount Devices). Moisture barrier bags (MBB) with desiccant are required for MSL ratings of 2 or greater. These sealed packages should not be broken until time of use. Once the LINEAGE POWER original package is broken, the floor life of the product at conditions of <= 30C and 60% relative humidity varies according to the MSL rating (see J-STD-033A). The shelf life for dry packed SMT packages will be a minimum of 12 months from the bag seal date, when stored at the following conditions: < 40 C, < 90% relative humidity. Post Solder Cleaning and Drying Considerations Post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. The result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. For guidance on appropriate soldering, cleaning and drying procedures, refer to Board Mounted Power Modules: Soldering and Cleaning Application Note (AN04-001). 300 Per J-STD-020 Rev. C Peak Temp 260C 250 Reflow Temp (C) Data Sheet October 1, 2009 200 150 * Min. Time Above 235C 15 Seconds Heating Zone 1C/Second Cooling Zone *Time Above 217C 60 Seconds 100 50 0 Reflow Time (Seconds) Figure 36. Recommended linear reflow profile using Sn/Ag/Cu solder. 20 Austin SuperLynxTM 12V SMT Non-isolated Power Modules: 10 - 14Vdc input; 0.75Vdc to 5.5Vdc Output; 16A output current Data Sheet October 1, 2009 Ordering Information Please contact your Lineage Power Sales Representative for pricing, availability and optional features. Table 3. Device Codes Output Voltage Output Current Efficiency 3.3V @ 16A Connector Type Comcodes Device Code Input Voltage Range AXA016A0X3-SR 10 - 14Vdc 0.75V - 5.5Vdc 16 A 92.0% SMT 108982661 AXA016A0X3-SRZ 10 - 14Vdc 0.75V - 5.5Vdc 16 A 92.0% SMT CC109104840 AXA016A0X3-SR12* 10 - 14Vdc 0.75V - 5.5Vdc 16 A 92.0% SMT 108993424 AXA016A0X3-SR12Z* 10 - 14Vdc 0.75V - 5.5Vdc 16 A 92.0% SMT CC109104485 * -12 code has 100 resistor between sense and output pins, internal to the module. Standard code, without -12 suffix, has 10 resistor between sense and output pins. -Z refers to RoHS compliant codes Asia-Pacific Headquarters Tel: +65 6593 7211 World Wide Headquarters Lineage Power Corporation 601 Shiloh Road, Plano, TX 75074, USA +1-800-526-7819 (Outside U.S.A.: +1-972-244-9428) www.lineagepower.com e-mail: techsupport1@lineagepower.com Europe, Middle-East and Africa Headquarters Tel: +49 898 780 672 80 India Headquarters Tel: +91 80 28411633 Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. 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. Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents. (c) 2009 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved. LINEAGE POWER 21 Document No: DS03-080 ver. 1.69 PDF name: superlynx_12v_smt_ds.pdf