Data Sheet October 2, 2009 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0Vdc -5.5Vdc Input; 0.75Vdc to 3.63Vdc 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 - 95% at 3.3V full load (VIN = 5.0V) Small size and low profile: 50.8 mm x 12.7 mm x 8.10 mm (2.00 in x 0.5 in x 0.32 in) Applications Distributed power architectures Intermediate bus voltage applications Telecommunications equipment Low output ripple and noise High Reliability: o Calculated MTBF > 6.8M hours at 25 C Full-load Constant switching frequency (300 kHz) Output voltage programmable from 0.75 Vdc to 3.63Vdc 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. 60950-1-03 Certified, and VDE 0805:2001-12 (EN60950-1) Licensed ISO** 9001 and ISO 14001 certified manufacturing facilities Description TM Austin SuperLynx SIP (Single In-line package) power modules are non-isolated dc-dc converters that can deliver up to 16A of output current with full load efficiency of 95.0% at 3.3V output. These modules provide a precisely regulated output voltage programmable via external resistor from 0.75Vdc to 3.63Vdc over a wide range of input voltage (VIN = 3.0 - 5.5Vdc). The open-frame construction and small footprint enable designers to develop costand space-efficient solutions. Standard features include remote On/Off, remote sense, programmable output voltage, overcurrent and overtemperature protection. * UL is a registered trademark of Underwriters Laboratories, Inc. CSA is a registered trademark of Canadian Standards Association. VDE is a trademark of Verband Deutscher Elektrotechniker e.V. ** ISO is a registered trademark of the International Organization of Standards Document No: DS03-085 ver. 1.53 PDF name: austin-superlynx-sip-ds.pdf Data Sheet October 2, 2009 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Device Symbol Min Max Unit All VIN -0.3 5.8 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 VIN - 0.5 VIN 3.0 5.5 Vdc Maximum Input Current All IIN,max 16 Adc Vo = 0.75 Vdc IIN,No load 70 mA Vo = 3.3 Vdc IIN,No load 70 mA All IIN,stand-by 1.5 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 Configurations) All 100 mAp-p Input Ripple Rejection (120Hz) All 30 dB (VIN=3.0V to 5.5V, IO=IO, max ) Input No Load Current (VIN = 5.0Vdc, IO = 0, module enabled) Input Stand-by Current (VIN = 5.0Vdc, module disabled) 2 0.1 2 As 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 20A, fast-acting, glass type fuse rated for 32V (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 2, 2009 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc 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 -3% +3% % VO, set All VO 0.7525 3.63 Vdc (VIN=VIN, 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 8 15 mVrms Peak-to-Peak (5Hz to 20MHz bandwidth) All 25 50 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 5000 F 16 Adc All CO, max Output Current All Io 0 Output Current Limit Inception (Hiccup Mode ) All IO, lim 180 % Io All IO, s/c 3.5 Adc VO,set = 0.75Vdc 82.0 % VIN= VIN, nom, TA=25C VO, set = 1.2Vdc 87.0 % IO=IO, max , VO= VO,set VO,set = 1.5Vdc 89.0 % VO,set = 1.8Vdc 90.0 % VO,set = 2.5Vdc 92.5 % ESR 10 m (VO= 90% of VO, set) Output Short-Circuit Current (VO250mV) ( Hiccup Mode ) Efficiency Switching Frequency VO,set = 3.3Vdc All fsw 95.0 300 kHz % All Vpk 300 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 300 mV All ts 25 s Peak Deviation Settling Time (Vo<10% peak deviation) LINEAGE POWER 3 Data Sheet October 2, 2009 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit All Vpk 150 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 100 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 150 mV Settling Time (Vo<10% peak deviation) All ts 100 s General Specifications Parameter Min Calculated MTBF (IO=IO, max, TA=25C) Weight LINEAGE POWER Typ Max 6,800,000 5.6 (0.2) Unit Hours g (oz.) 4 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Data Sheet October 2, 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 Min Typ Max Input High Voltage (Module OFF) All VIH Input High Current All IIH Input Low Voltage (Module ON) All Input Low Current All Unit 1.5 VIN,max V 0.2 1 mA VIL -0.2 0.3 V IIL 10 A All Tdelay 3.9 msec All Tdelay 3.9 msec All Trise 4.2 8.5 msec 1 % VO, set 0.5 V 125 C 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 Logic Low 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 (See Thermal Consideration section) Input Undervoltage Lockout Turn-on Threshold All 2.2 V Turn-off Threshold All 2.0 V LINEAGE POWER 5 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Data Sheet October 2, 2009 Characteristic Curves The following figures provide typical characteristics for the Austin SuperLynxTM SIP modules at 25C. 96 90 93 87 EFFICIENCY, (%) EFFICIENCY, (%) 90 84 81 VIN = 3.0V 78 VIN = 5.0V 75 VIN = 5.5V 72 87 84 81 VIN = 3.0V 78 VIN = 5.0V 75 VIN = 5.5V 72 0 4 8 12 16 0 4 OUTPUT CURRENT, IO (A) 8 12 16 OUTPUT CURRENT, IO (A) Figure 1. Converter Efficiency versus Output Current (Vout = 0.75Vdc). Figure 4. Converter Efficiency versus Output Current (Vout = 1.8Vdc). 93 100 97 90 87 EFFICIENCY, (%) EFFICIENCY, (%) 94 84 81 VIN = 3.0V 78 VIN = 5.0V 75 VIN = 5.5V 72 91 88 85 82 VIN = 5.0V 76 VIN = 5.5V 73 0 4 8 12 16 0 OUTPUT CURRENT, IO (A) 97 88 94 EFFICIENCY, (%) 100 91 85 82 79 VIN = 3.0V VIN = 5.0V 73 8 12 16 Figure 5. Converter Efficiency versus Output Current (Vout = 2.5Vdc). 94 76 4 OUTPUT CURRENT, IO (A) Figure 2. Converter Efficiency versus Output Current (Vout = 1.2Vdc). EFFICIENCY, (%) VIN = 3.0V 79 VIN = 5.5V 70 91 88 85 VIN = 4.5V 82 VIN = 5.0V 79 VIN = 5.5V 76 0 4 8 12 16 OUTPUT CURRENT, IO (A) Figure 3. Converter Efficiency versus Output Current (Vout = 1.5Vdc). LINEAGE POWER 0 4 8 12 16 OUTPUT CURRENT, IO (A) Figure 6. Converter Efficiency versus Output Current (Vout = 3.3Vdc). 6 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Data Sheet October 2, 2009 Characteristic Curves (continued) TM 4 2 0 0.5 1.5 2.5 3.5 INPUT VOLTAGE, VIN (V) VO (V) (20mV/div) OUTPUT VOLTAGE Figure 7. Input voltage vs. Input Current (Vout = 2.5Vdc). TIME, t (2s/div) VO (V) (20mV/div) OUTPUT VOLTAGE Figure 8. Typical Output Ripple and Noise (Vin = 5.0V dc, Vo = 0.75 Vdc, Io=16A). TIME, t (2s/div) Figure 9. Typical Output Ripple and Noise (Vin = 5.0V dc, Vo = 3.3 Vdc, Io=16A). LINEAGE POWER 4.5 5.5 VO (V) (200mV/div) IO (A) (5A/div) 6 TIME, t (5 s/div) Figure 10. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3Vdc). VO (V) (200mV/div) 8 IO (A) (5A/div) 10 OUTPUT CURRENT, OUTPUT VOLTAGE Io =16A 12 TIME, t (5 s/div) Figure 11. Transient Response to Dynamic Load Change from 100% to 50% of full load (Vo = 3.3 Vdc). VO (V) (200mV/div) INPUT CURRENT, IIN (A) Io =8A 14 SIP modules at 25C. IO (A) (5A/div) Io =0A 16 OUTPUT CURRENT, OUTPUT VOLTAGE 18 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 2, 2009 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Characteristic Curves (continued) VOV) (1V/div) TIME, t (2 ms/div) Figure 15. Typical Start-Up Using Remote On/Off with Low-ESR external capacitors (Vin = 5.5Vdc, Vo = 3.3Vdc, Io = 16.0A, Co = 1050F). LINEAGE POWER INPUT VOLTAGE VNN (V) (2V/div) OUTPUT VOLTAGE VOV) (1V/div) VOn/off (V) (2V/div) TIME, t (2 ms/div) Figure 17 Typical Start-Up Using Remote On/Off with Prebias (Vin = 3.3Vdc, Vo = 1.8Vdc, Io = 1.0A, Vbias =1.0Vdc). OUTPUT CURRENT, On/Off VOLTAGE VOn/off (V) (2V/div) OUTPUT VOLTAGE Figure 14. Typical Start-Up Using Remote On/Off (Vin = 5.0Vdc, Vo = 3.3Vdc, Io = 16.0A). On/Off VOLTAGE VOn/off (V) (2V/div) VOV) (1V/div) TIME, t (2 ms/div) Figure 16. Typical Start-Up with application of Vin (Vin = 5.0Vdc, Vo = 3.3Vdc, Io = 16A). VOV) (1V/div) 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). TIME, t (2 ms/div) OUTPUT VOLTAGE TIME, t (10s/div) IO (A) (10A/div) OUTPUT CURRENT, OUTPUTVOLTAGE IO (A) (5A/div) VO (V) (200mV/div) The following figures provide typical characteristics for the Austin SuperLynxTM SIP modules at 25C. TIME, t (10ms/div) Figure 18. Output short circuit Current (Vin = 5.0Vdc, Vo = 0.75Vdc). 8 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Data Sheet October 2, 2009 Characteristic Curves (continued) 18 18 16 16 14 12 10 NC 8 100 LFM 6 200 LFM 4 300 LFM 2 400 LFM 0 20 30 40 50 60 70 80 90 O OUTPUT CURRENT, Io (A) OUTPUT CURRENT, Io (A) The following figures provide thermal derating curves for the Austin SuperLynxTM SIP modules. 14 12 10 NC 8 6 100 LFM 200 LFM 4 300 LFM 2 400 LFM 0 20 30 40 50 60 70 80 90 O AMBIENT TEMPERATURE, TA C AMBIENT TEMPERATURE, TA C Figure 19. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 5.0, Vo=3.3Vdc). Figure 22. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 3.3dc, Vo=0.75 Vdc). 18 OUTPUT CURRENT, Io (A) 16 14 12 10 NC 8 6 100 LFM 200 LFM 4 300 LFM 2 400 LFM 0 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 = 5.0Vdc, Vo=0.75 Vdc). 18 OUTPUT CURRENT, Io (A) 16 14 12 10 NC 8 6 100 LFM 200 LFM 4 300 LFM 2 400 LFM 0 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 = 3.3Vdc, Vo=2.5 Vdc). LINEAGE POWER 9 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Data Sheet October 2, 2009 Test Configurations Design Considerations CURRENT PROBE TO OSCILLOSCOPE LTEST VIN(+) BATTERY 1H 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. Input Filtering TM Austin SuperLynx SIP module should be connected to a low ac-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. To minimize input voltage ripple, low-ESR polymer and ceramic capacitors are recommended at the input of the module. Figure 26 shows input ripple voltage (mVp-p) for various outputs with 1x150 F polymer capacitors (Panasonic p/n: EEFUE0J151R, Sanyo p/n: 6TPE150M) in parallel with 1 x 47 F ceramic capacitor (Panasonic p/n: ECJ-5YB0J476M, Taiyo- Yuden p/n: CEJMK432BJ476MMT) at full load. Figure 27 shows the input ripple with 2x150 F polymer capacitors in parallel with 2 x 47 F ceramic capacitor at full load. 300 RESISTIVE LOAD 1uF . 10uF 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(+) VO RLOAD VO VIN Rdistribution Rcontact Rcontact COM Rdistribution Rdistribution 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. 250 200 150 100 3.3Vin 50 5Vin 0 0.5 1 1.5 2 2.5 3 3.5 Output Voltage (Vdc) Figure 26. Input ripple voltage for various output with 1x150 F polymer and1x47 F ceramic capacitors at the input (full load). Input Ripple Voltage (mVp-p) VO (+) Input Ripple Voltage (mVp-p) COPPER STRIP 200 180 160 140 120 100 80 60 3.3Vin 40 20 0 5Vin 0.5 1 1.5 2 2.5 3 3.5 VO. IO Efficiency = LINEAGE POWER VIN. IIN x 100 % Output Voltage (Vdc) Figure 27. Input ripple voltage for various output with 2x150 F polymer and 2x47 F ceramic capacitors at the input (full load). 10 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Data Sheet October 2, 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 SIP 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 20A in the positive input lead. 11 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Data Sheet October 2, 2009 Feature Description Output Voltage Programming Remote On/Off The output voltage of the Austin SuperLynxTM SIP can be programmed to any voltage from 0.75 Vdc to 3.63 Vdc by connecting a single resistor (shown as Rtrim in Figure 29) between the TRIM and GND pins of the module. Without an external resistor between the TRIM pin and the ground, the output voltage of the module is 0.7525 Vdc. To calculate the value of the resistor Rtrim for a particular output voltage Vo, use the following equation: TM The Austin SuperLynx SIP power modules feature an On/Off pin for remote On/Off operation. The On/Off pin is pulled high with an external pull-up resistor (typical Rpull-up = 68k, 5%) as shown in Fig. 28. When transistor Q1 is in the Off state, logic High is applied to the On/Off pin and the power module is Off. The minimum On/off voltage for logic High on the On/Off pin is 1.5Vdc. To turn the module ON, logic Low is applied to the On/Off pin by turning ON Q1. When not using the negative logic On/Off, leave the pin unconnected or tie to GND. VIN+ For example, to program the output voltage of the TM Austin SuperLynx module to 1.8 Vdc, Rtrim is calculated is follows: MODULE Rpull-up 21070 Rtrim = - 5110 Vo - 0.7525 I ON/OFF 21070 Rtrim = - 5110 1.8 - 0.7525 ON/OFF PWM Enable + VON/OFF R1 Q2 Q1 Rtrim = 15.004 k CSS R2 GND _ V IN(+) V O(+) ON/OFF TRIM Figure 28. Circuit configuration for On/Off. 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 3.5A. 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, o exceeds 125 C (typical), but the thermal shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. The module will automatically restarts after it cools down. LINEAGE POWER LOAD R trim GND Figure 29. Circuit configuration to program output voltage using an external resistor. The Austin SuperLynxTM can also be programmed by applying a voltage between the TRIM and GND pins (Figure 30). The following equation can be used to determine the value of Vtrim needed to obtain a desired output voltage Vo: Vtrim = (0.7 - 0.1698 x {Vo - 0.7525}) For example, to program the output voltage of a SuperLynxTM module to 3.3 Vdc, Vtrim is calculated as follows: Vtrim = (0.7 - 0.1698 x {3.3 - 0.7525}) Vtrim = 0.2670V 12 Data Sheet October 2, 2009 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Feature Descriptions (continued) V IN(+) V O(+) ON/OFF LOAD TRIM + - GND for margining-down. Figure 31 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. Vtrim Vo Rmargin-down Figure 30. Circuit Configuration for programming Output voltage using external voltage source. Austin Lynx or Lynx II Series Q2 Table 1 provides Rtrim values required for some common output voltages, while Table 2 provides values of external voltage source, Vtrim for the same common output voltages. Trim Rmargin-up Table 1 VO, (V) Rtrim Rtrim (K) 0.7525 Open 1.2 41.973 1.5 23.077 1.8 15.004 2.5 6.947 3.3 3.160 Table 2 VO, set (V) Vtrim (V) 0.7525 Open 1.2 0.6240 1.5 0.5731 1.8 0.5221 2.5 0.4033 3.3 0.2670 By a 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.lineagepower.com under the Design Tools section, helps determine the required external trim resistor needed for a specific output voltage. Q1 GND Figure 31. Circuit Configuration for margining Output voltage. Remote Sense The Austin SuperLynxTM SIP power modules have a Remote Sense feature to minimize the effects of distribution losses by regulating the voltage at the Remote Sense pin (See Figure 32). The voltage between the Sense pin and Vo pin must not exceed 0.5V. The amount of power delivered by the module is defined as the output voltage multiplied by the output current (Vo x Io). When using Remote Sense the output voltage of the module can increase, which if the same output is maintained, increases the power output by the module. Make sure that the maximum output power of the module remains at or below the maximum rated power. When the Remote Sense feature is not being used, connect the Remote Sense pin to the output pin of the module. Voltage Margining Output voltage margining can be implemented in the TM Austin SuperLynx 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 LINEAGE POWER 13 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Data Sheet October 2, 2009 Feature Descriptions (continued) Rdistribution Rcontact Rcontact Rdistribution VIN(+) VO Sense RLOAD Rdistribution Rcontact Rcontact Rdistribution COM COM Figure 32. Remote sense circuit configuration LINEAGE POWER 14 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Data Sheet October 2, 2009 Thermal Considerations The 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 Fig. 33. Note that the airflow is parallel to the long axis of the module as shown in Fig. 34. The derating data applies to airflow in either direction of the module's long axis. 25.4_ (1.0) Wind Tunnel PWBs airflow conditions ranging from natural convection and up to 2m/s (400 ft./min) are shown in the Characteristics Curves section. Airflow Top View Power Module Tref Figure 34. Tref Temperature measurement location Post solder Cleaning and Drying Considerations 76.2_ (3.0) x 5.97_ (0.235) Probe Loc ation for measuring airflow and ambient temperature Air flow Figure 33. Thermal Test Set-up. The thermal reference point, Tref used in the specifications is shown in Figure 33. 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. Heat Transfer via Convection 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 3C/s is suggested. The wave preheat process should be such that the temperature of the power module board is kept below 210C. For Pb solder, the recommended pot temperature is 260C, while the Pb-free solder pot is 270C 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 Lineage Power technical representative for more details. 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 LINEAGE POWER 15 Data Sheet October 2, 2009 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Mechanical Outline Dimensions are in millimeters and (inches). Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated] x.xx mm 0.25 mm (x.xxx in 0.010 in.) Back View Pin Function 1 Vo 2 Vo 3 Vo,sense 4 Vo 5 GND 6 GND 7 VIN 8 VIN 9 TRIM 10 ON/OFF LINEAGE POWER Side View 16 Data Sheet October 2, 2009 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Recommended Pad Layout Dimensions are in millimeters and (inches). Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated] x.xx mm 0.25 mm (x.xxx in 0.010 in.) Pin Function 1 Vo 2 Vo 3 Vo,sense 4 Vo 5 GND 6 GND 7 VIN 8 VIN 9 TRIM 10 ON/OFF LINEAGE POWER 17 Austin SuperLynxTM SIP Non-isolated Power Modules: 3.0 - 5.5Vdc Input; 0.75Vdc to 3.63Vdc Output; 16A output current Data Sheet October 2, 2009 Ordering Information Please contact your Lineage Power Sales Representative for pricing, availability and optional features. Table 3. Device Codes Product codes Input Voltage Output Voltage Output Current Efficiency 3.3V @ 16A Connector Type Comcodes AXH016A0X3 3.0 - 5.5Vdc 0.75 - 3.3Vdc 16A 95.0% SIP 108979592 AXH016A0X3Z 3.0 - 5.5Vdc 0.75 - 3.3Vdc 16A 95.0% SIP CC109104964 AXH016A0X3-12* 3.0 - 5.5Vdc 0.75 - 3.3Vdc 16A 95.0% SIP 108993434 * Special code, consult factory before ordering The -12 code has a 100 resistor between sense and output pins, internal to the module. Standard code, without the -12 suffix, has a 10 resistor between sense and output pins. -Z refers to RoHS-compliant versions. Table 4. Device Option Option** Suffix*** Long Pins 5.08 mm 0.25mm (0.200 in. 0.010 in.) 5 ** Contact Lineage Power Sales Representative for availability of these options, samples, minimum order quantity and lead times *** When adding multiple options to the product code, add suffix numbers in the descending order 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 18 Document No: DS03-085 ver. 1.53 PDF name: austin-superlynx-sip-ds.pdf Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: GE (General Electric): AXH016A0X3Z