Data Sheet July 24, 2009 12V TLynxTM Non-Isolated DC-DC Power Modules: 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A Output Current Features RoHS Compliant EZ-SEQUENCE Distributed power architectures Intermediate bus voltage applications Telecommunications equipment Servers and storage applications Networking equipment Industrial equipment Vin+ VIN PGOOD CTUNE Q1 ON/OFF GND Compatible in a Pb-free or SnPb reflow environment (Z versions) Wide Input voltage range (4.5Vdc-14Vdc) Output voltage programmable from 0.69Vdc to 5.5 Vdc via external resistor Tunable Loop response Flexible output voltage sequencing EZSEQUENCE (APTS versions) Fixed switching freqeuency and ability to synchronize with external clock Output overcurrent protection (non-latching) Overtemperature protection Remote On/Off Remote Sense Power Good signal Ability to sink and source current Small size: TM to optimize dynamic output voltage 33 mm x 13.46 mm x 8.5 mm (1.3 in x 0.53 in x 0.334 in) RTUNE SEQ Cin Vout+ VOUT SENSE MODULE Compliant to RoHS EU Directive 2002/95/EC (Z versions) TM Applications Co Wide operating temperature range [-40°C to 105°C(Ruggedized: -D), 85°C(Regular)] Ruggedized (-D) version able to withstand high levels of shock and vibration 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 TRIM RTrim † Description The 12V TLynxTM series of power modules are non-isolated dc-dc converters that can deliver up to 20A of output current. These modules operate over a wide range of input voltage (VIN = 4.5Vdc-14Vdc) and provide a precisely regulated output voltage from 0.69Vdc to 5.5Vdc, programmable via an external resistor. Features include frequency synchronization, remote On/Off, adjustable output voltage, over current and temperature protection, power good and output voltage sequencing. The Ruggedized version (-D) is capable of operation up to 105°C and withstand high levels of shock and vibration. The Tunable LoopTM, allows the user to optimize the dynamic response of the converter to match the load with reduced amount of output capacitance leading to savings on cost and PWB area. * 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: DS07-012 ver. 1.12 PDF name: APTS020A0X_ds.pdf Data Sheet July 24, 2009 12V TLynxTM Non-isolated DC-DC Power Modules: 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A 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 Input Voltage Continuous Voltage on SEQ terminal All VSEQ -0.3 VIN Vdc Voltage on SYNC terminal All VSYNC -0.3 12 Vdc Voltage on PG terminal All VPG -0.3 6 Vdc Operating Ambient Temperature All TA -40 85 °C -D version TA -40 105 °C All Tstg -55 125 °C (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 All VIN 4.5 ⎯ 14 Vdc Maximum Input Current All IIN,max 20 Adc (VIN = 10.0Vdc, IO = 0, module enabled) VO,set = 0.69 Vdc IIN,No load 42 mA (VIN = 12.0Vdc, IO = 0, module enabled) VO,set = 3.3Vdc IIN,No load 74 mA All IIN,stand-by 3 mA Inrush Transient All It Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN =4.5V to 14V, IO= IOmax ; See Test Configurations) All 43 mAp-p Input Ripple Rejection (120Hz) All 45 dB (VIN=4.5V to 14V, IO=IO, max ) Input No Load Current Input Stand-by Current (VIN = 12.0Vdc, module disabled) 2 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 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 20 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 12V TLynxTM Non-isolated DC-DC Power Modules: 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Electrical Specifications (continued) Parameter Device Symbol Min Output Voltage Set-point All VO, set -1.5 Output Voltage All VO, set -2.5 All VO 0.69 (Over all operating input voltage, resistive load, and temperature conditions until end of life) Adjustment Range (selected by an external resistor) (Some output voltages may not be possible depending on the input voltage – see Feature Descriptions Section) Output Regulation (for VO ≥ 2.5Vdc) Typ ⎯ Max Unit +1.5 % VO, set +2.5 % VO, set 5.5 Vdc Line (VIN=VIN, min to VIN, max) All ⎯ +0.4 % VO, set Load (IO=IO, min to IO, max) All ⎯ 10 mV Output Regulation (for VO < 2.5Vdc) Line (VIN=VIN, min to VIN, max) All ⎯ 10 mV Load (IO=IO, min to IO, max) All ⎯ 5 mV Temperature (Tref=TA, min to TA, max) All ⎯ 0.5 % VO, set 0.5 Vdc 30 80 mVpk-pk 14 28 mVrms 200 μF Remote Sense Range All Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 10 μF ceramic capacitors) Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ RMS External Capacitance 1 TM Without the Tunable Loop All CO, max 0 ⎯ ESR ≥ 0.15 mΩ All CO, max 0 ⎯ 1000 μF ESR ≥ 10 mΩ All CO, max 0 ⎯ 10000 μF 0 ESR ≥ 1 mΩ With the Tunable Loop TM Output Current All Io Output Current Limit Inception (Hiccup Mode ) All IO, lim 120 20 % Io,max Adc Output Short-Circuit Current All IO, s/c 2.6 Adc (VO≤250mV) ( Hiccup Mode ) Efficiency (VIN= 10Vdc) VO,set = 0.69Vdc η 72.1 % VIN= 12Vdc, TA=25°C VO,set = 1.2Vdc η 81.3 % IO=IO, max , VO= VO,set VO,set = 1.8Vdc η 85.7 % VO, set = 2.5Vdc η 88.0 % VO,set = 3.3Vdc η 89.7 % VO,set = 5.0Vdc η 91.8 % 1 TM External capacitors may require using the new Tunable Loop feature to ensure that the module is stable as well as TM getting the best transient response. See the Tunable Loop section for details. LINEAGE POWER 3 12V TLynxTM Non-isolated DC-DC Power Modules: 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Electrical Specifications (continued) Parameter Switching Frequency Device Symbol Min Typ Max Unit All fsw ⎯ 550 ⎯ kHz 600 kHz Frequency Synchronization Synchronization Frequency Range 520 High-Level Input Voltage All VIH Low-Level Input Voltage All VIL 0.8 V VSYNC=2.5V ISYNC 1 mA Input Current, SYNC Minimum Pulse Width, SYNC 2.5 V All tSYNC 250 ns All tSYNC_SH 250 ns Peak Deviation All Vpk 380 mV Settling Time (Vo<10% peak deviation) All ts 30 μs Peak Deviation All Vpk 300 mV Settling Time (Vo<10% peak deviation) All ts 30 μs Minimum Setup/Hold Time, SYNC 2 Dynamic Load Response (dIo/dt=10A/μs; VIN = VIN, nom; Vout = 1.5V, TA=25°C) Load Change from Io= 50% to 100% of Io,max; Co = 0 Load Change from Io= 100% to 50%of Io,max: Co = 0 2 To meet set up time requirements for the synchronization circuit, the logic low width of the pulse must be greater than 100 ns wide. General Specifications Parameter Min Calculated MTBF (IO=0.8IO, max, VO=5V, TA=40°C) Telecordia Method Issue 2, Method I Case 3 Weight LINEAGE POWER Typ Max 14,262,200 ⎯ 6.05 (0.213) Unit Hours ⎯ g (oz.) 4 12V TLynxTM Non-isolated DC-DC Power Modules: 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 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 Units On/Off Signal Interface (VIN=VIN, min to VIN, max ; open collector or equivalent, Signal referenced to GND) Device is with suffix “4” – Positive Logic (See Ordering Information) Logic High ( Module ON) Input High Current All IIH ⎯ 25 µA Input High Voltage All VIH VIN – 1 ⎯ VIN,max V Logic Low (Module OFF) Input Low Current All IIL ⎯ ⎯ 3 mA Input Low Voltage All VIL ⎯ ⎯ 3.5 V Device Code with no suffix – Negative Logic (See Ordering Information) (On/OFF pin is open collector/drain logic input with external pull-up resistor; signal referenced to GND) Logic High (Module OFF) Input High Current All IIH ― ― 1 mA Input High Voltage All VIH 2.0 ― VIN, max Vdc Logic Low (Module ON) Input low Current All IIL ― ― 10 μA Input Low Voltage All VIL 0 ― 1 Vdc All Tdelay ― 2 ― msec All Tdelay ― 2 ― msec All Trise ― 5 ― msec 3.0 % VO, set Turn-On Delay and Rise Times (VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state) Case 1: On/Off input is enabled 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 enabled (delay from instant at which Von/Off is enabled 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) o Output voltage overshoot (TA = 25 C VIN= VIN, min to VIN, max,IO = IO, min to IO, max) With or without maximum external capacitance Over Temperature Protection All Tref 135 °C (See Thermal Considerations section) Sequencing Delay time Delay from VIN, min to application of voltage on SEQ pin Tracking Accuracy All TsEQ-delay (Power-Up: 2V/ms) All VSEQ –Vo 10 150 msec mV (Power-Down: 2V/ms) All VSEQ –Vo 100 mV (VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo) Input Undervoltage Lockout Turn-on Threshold All Turn-off Threshold All 4.2 Vdc Hysteresis All 0.25 Vdc LINEAGE POWER 4.45 Vdc 5 Data Sheet July 24, 2009 12V TLynxTM Non-isolated DC-DC Power Modules: 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Feature Specifications (cont.) Parameter Device Symbol Min Typ Max Units PGOOD (Power Good) Signal Interface Open Drain, Vsupply ≤ 6VDC Overvoltage threshold for PGOOD 110.8 %VO, set Undervoltage threshold for PGOOD 89.1 %VO, set Pulldown resistance of PGOOD pin LINEAGE POWER All 7 50 Ω 6 12V TLynxTM Non-isolated DC-DC Power Modules: 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Characteristic Curves The following figures provide typical characteristics for the 12V TLynx TM o at 0.69Vo and at 25 C. 22 90 OUTPUT CURRENT, Io (A) 20 EFFICIENCY, η (%) 85 80 Vin=5V Vin=7V 75 Vin=10V 70 0 5 10 15 LINEAGE POWER 12 10 2m/s (400LFM) Standard Part (85°C) 8 6 Ruggedized (D) Part (105°C) 4 45 55 65 75 85 95 105 VO (V) (200mV/div) IO (A) (5Adiv) OUTPUT CURRENT, OUTPUT VOLTAGE Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max). 1m/s (200LFM) Figure 2. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (20μs /div) VIN (V) (5V/div) Figure 4. Transient Response to Dynamic Load Change from 0% to 50% to 0%. INPUT VOLTAGE VO (V) (200mV/div) VON/OFF (V) (5V/div) TIME, t (2 ms/div) 14 O VO (V) (1V/div) OUTPUT VOLTAGE ON/OFF VOLTAGE Figure 3. Typical output ripple and noise (VIN = 12V, Io = Io,max). 0.5m/s (100LFM) AMBIENT TEMPERATURE, TA C OUTPUT VOLTAGE VO (V) (10mV/div) OUTPUT VOLTAGE TIME, t (1μs/div) NC 16 35 20 OUTPUT CURRENT, IO (A) Figure 1. Converter Efficiency versus Output Current. 18 TIME, t (1 ms/div) Figure 6. Typical Start-up Using Input Voltage (VIN = 10V, Io = Io,max). 7 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Characteristic Curves (continued) The following figures provide typical characteristics for the 12V TLynxTM at 1.2Vo and at 25oC. 22 95 20 OUTPUT CURRENT, Io (A) EFFICIENCY, η (%) 90 85 Vin=4.5V 80 Vin=12V Vin=14V 75 70 0 5 10 15 LINEAGE POWER Standard Part (85°C) 8 6 Ruggedized (D) Part (105°C) 4 35 45 55 65 75 85 95 105 OUTPUT VOLTAGE VO (V) (200mV/div) IO (A) (5Adiv) OUTPUT CURRENT, TIME, t (20μs /div) VIN (V) (5V/div) Figure 10. Transient Response to Dynamic Load Change from 0% to 50% to 0%. INPUT VOLTAGE VON/OFF (V) (5V/div) Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max). 10 2m/s (400LFM) AMBIENT TEMPERATURE, TA C VO (V) (1V/div) OUTPUT VOLTAGE VO (V) (500mV/div) ON/OFF VOLTAGE TIME, t (1 ms/div) 12 Figure 8. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE VO (V) (20mV/div) OUTPUT VOLTAGE TIME, t (1μs/div) 1m/s (200LFM) 14 O OUTPUT CURRENT, IO (A) Figure 9. Typical output ripple and noise (VIN = 12V, Io = Io,max). 0.5m/s (100LFM) 16 25 20 Figure 7. Converter Efficiency versus Output Current. NC 18 TIME, t (1 ms/div) Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). 8 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Characteristic Curves (continued) The following figures provide typical characteristics for the 12V TLynxTM at 1.8Vo and at 25oC. 22 95 20 OUTPUT CURRENT, Io (A) EFFICIENCY, η (%) 90 Vin=4.5V 85 Vin=12V Vin=14V 80 75 70 0 5 10 15 LINEAGE POWER 10 Standard Part (85°C) 8 6 Ruggedized (D) Part (105°C) 4 35 45 55 65 75 85 95 105 VO (V) (200mV/div) IO (A) (5Adiv) OUTPUT CURRENT, OUTPUT VOLTAGE Figure 14. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (20μs /div) VIN (V) (5V/div) Figure 16. Transient Response to Dynamic Load Change from 0% to 50% to 0%. INPUT VOLTAGE VO (V) (500mV/div) VON/OFF (V) (5V/div) Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max). 2m/s (400LFM) 12 O VO (V) (1V/div) OUTPUT VOLTAGE ON/OFF VOLTAGE TIME, t (1 ms/div) 1m/s (200LFM) 14 AMBIENT TEMPERATURE, TA C OUTPUT VOLTAGE VO (V) (20mV/div) OUTPUT VOLTAGE TIME, t (1μs/div) Figure 15. Typical output ripple and noise (VIN = 12V, Io = Io,max). 0.5m/s (100LFM) 16 25 20 OUTPUT CURRENT, IO (A) Figure 13. Converter Efficiency versus Output Current. NC 18 TIME, t (1 ms/div) Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). 9 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Characteristic Curves (continued) The following figures provide typical characteristics for the 12V TLynxTM at 2.5Vo and at 25oC. 22 100 20 OUTPUT CURRENT, Io (A) EFFICIENCY, η (%) 95 90 Vin=4.5V 85 Vin=12V Vin=14V 80 75 70 0 5 10 15 LINEAGE POWER 10 Standard Part (85°C) 8 6 Ruggedized (D) Part (105°C) 4 35 45 55 65 75 85 95 105 VO (V) (200mV/div) IO (A) (5Adiv) OUTPUT CURRENT, OUTPUT VOLTAGE Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max). 2m/s (400LFM) 12 Figure 20. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (20μs /div) VIN (V) (5V/div) Figure 22. Transient Response to Dynamic Load Change from 0% to 50% to 0%. INPUT VOLTAGE VO (V) (1V/div) VON/OFF (V) (5V/div) TIME, t (1 ms/div) 1m/s (200LFM) 14 O VO (V) (1V/div) OUTPUT VOLTAGE ON/OFF VOLTAGE Figure 21. Typical output ripple and noise (VIN = 12V, Io = Io,max). 0.5m/s (100LFM) AMBIENT TEMPERATURE, TA C OUTPUT VOLTAGE VO (V) (20mV/div) OUTPUT VOLTAGE TIME, t (1μs/div) NC 16 25 20 OUTPUT CURRENT, IO (A) Figure 19. Converter Efficiency versus Output Current. 18 TIME, t (1 ms/div) Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). 10 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Characteristic Curves (continued) The following figures provide typical characteristics for the 12V TLynxTM at 3.3Vo and at 25oC. 22 100 20 OUTPUT CURRENT, Io (A) EFFICIENCY, η (%) 95 90 Vin=4.5V Vin=12V 85 Vin=14V 80 75 70 0 5 10 15 LINEAGE POWER Standard Part (85°C) 8 6 Ruggedized (D) Part (105°C) 4 35 45 55 65 75 85 95 105 VO (V) (200mV/div) IO (A) (5Adiv) OUTPUT CURRENT, OUTPUT VOLTAGE Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max). 2m/s (400LFM) 10 Figure 26. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (20μs /div) VIN (V) (5V/div) Figure 28. Transient Response to Dynamic Load Change from 0% 50% to 0%. INPUT VOLTAGE VO (V) (1V/div) VON/OFF (V) (2V/div) TIME, t (1ms/div) 1m/s (200LFM) 12 O VO (V) (1V/div) OUTPUT VOLTAGE ON/OFF VOLTAGE Figure 27. Typical output ripple and noise (VIN = 12V, Io = Io,max). 0.5m/s (100LFM) 14 AMBIENT TEMPERATURE, TA C OUTPUT VOLTAGE VO (V) (20mV/div) OUTPUT VOLTAGE TIME, t (1μs/div) NC 16 25 20 OUTPUT CURRENT, IO (A) Figure 25. Converter Efficiency versus Output Current. 18 TIME, t (1ms/div) Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). 11 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Characteristic Curves (continued) The following figures provide typical characteristics for the 12V TLynxTM at 5Vo and at 25oC. 22 100 20 90 Vin=4.5V Vin=12V OUTPUT CURRENT, Io (A) EFFICIENCY, η (%) 95 Vin=14V 85 80 75 70 0 5 10 15 20 LINEAGE POWER 12 Standard Part (85°C) 10 8 1.5m/s (300LFM) Ruggedized (D) Part (105°C) 6 2m/s (400LFM) 4 35 45 55 65 75 85 95 105 VO (V) (200mV/div) IO (A) (5Adiv) OUTPUT CURRENT, OUTPUT VOLTAGE Figure 34. Derating Output Current versus Ambient Temperature and Airflow. TIME, t (20μs /div) VIN (V) (5V/div) Figure 35. Transient Response to Dynamic Load Change from 0% 50% to 0%. INPUT VOLTAGE VO (V) (2V/div) VON/OFF (V) (5V/div) Figure 33. Typical Start-up Using On/Off Voltage (Io = Io,max). 1m/s (200LFM) 14 O VO (V) (1V/div) OUTPUT VOLTAGE ON/OFF VOLTAGE TIME, t (1 ms/div) 0.5m/s (100LFM) AMBIENT TEMPERATURE, TA C OUTPUT VOLTAGE VO (V) (20mV/div) OUTPUT VOLTAGE TIME, t (1μs/div) Figure 32. Typical output ripple and noise (VIN = 12V, Io = Io,max). NC 16 25 OUTPUT CURRENT, IO (A) Figure 31. Converter Efficiency versus Output Current. 18 TIME, t (1ms/div) Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). 12 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Test Configurations Design Considerations CURRENT PROBE TO OSCILLOSCOPE VIN(+) BATTERY CIN CS 1000μF Electrolytic 2x100μF Tantalum E.S.R.<0.1Ω TM The 12V TLynx 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. LTEST 1μH Input Filtering @ 20°C 100kHz COM NOTE: Measure input reflected ripple current with a simulated source inductance (LTEST) of 1μH. Capacitor CS offsets possible battery impedance. Measure current as shown above. Figure 37. Input Reflected Ripple Current Test Setup. To minimize input voltage ripple, ceramic capacitors are recommended at the input of the module. Figure 40 shows the input ripple voltage for various output voltages at 20A of load current with 2x22 µF or 3x22 µF ceramic capacitors and an input of 12V. RESISTIVE LOAD Vo+ 10uF 0.1uF COM SCOPE USING BNC SOCKET 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 38. Output Ripple and Noise Test Setup. Rdistribution Rcontact Rcontact VIN(+) Rdistribution Input Ripple Voltage (mVp-p) 300 COPPER STRIP 2x22uF 250 3x22 uF 200 150 100 50 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Output Voltage (Vdc) Figure 40. Input ripple voltage for various output voltages with 2x22 µF or 3x22 µF ceramic capacitors at the input (20A load). Input voltage is 12V. VO Output Filtering VO VIN Rdistribution RLOAD Rcontact Rcontact COM 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 39. Output Voltage and Efficiency Test Setup. VO. IO Efficiency η = LINEAGE POWER VIN. IIN x 100 % TM The 12V TLynx modules are designed for low output ripple voltage and will meet the maximum output ripple specification with 0.1 µF ceramic and 10 µF ceramic 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. Figure 41 provides output ripple information for different 13 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 external capacitance values at various Vo and for a full load current of 20A. 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 module can be achieved by using the Tunable TM Loop feature described later in this data sheet. 40 1x10uF External Cap 1x47uF External Cap 2x47uF External Cap 4x47uF External Cap Ripple (mVp-p) 30 20 10 0 0.5 1.5 2.5 3.5 Output Voltage (Volts) 4.5 5.5 Figure 41. Output ripple voltage for various output voltages with external 1x10 µF, 1x47 µF, 2x47 µF or 4x47 µF ceramic capacitors at the output (20A load). Input voltage is 12V. Feature Descriptions Remote Enable The 12V TLynxTM modules feature an On/Off pin for remote On/Off operation. Two On/Off logic options are available. In the Positive Logic On/Off option, (device code suffix “4” – see Ordering Information), the module turns ON during a logic High on the On/Off pin and turns OFF during a logic Low. With the Negative Logic On/Off option, (no device code suffix, see Ordering Information), the module turns OFF during logic High and ON during logic Low. The On/Off signal is always referenced to ground. For either On/Off logic option, leaving the On/Off pin disconnected will turn the module ON when input voltage is present. For positive logic modules, the circuit configuration for using the On/Off pin is shown in Figure 42. When the external transistor Q1 is in the OFF state, the internal PWM Enable signal is pulled high through an internal 24.9kΩ resistor and the external pullup resistor and the module is ON. When transistor Q1 is turned ON, the On/Off pin is pulled low and the module is OFF. A suggested value for Rpullup is 20kΩ. VIN+ MODULE Rpullup ON/OFF Safety Considerations 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. 60950-103, and VDE 0850:2001-12 (EN60950-1) Licensed. 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 20 A in the positive input lead. LINEAGE POWER + VON/OFF Q1 GND 24.9K 22K I ON/OFF 23K PWM Enable Q2 22K 22K Q3 12.1K _ Figure 42. Circuit configuration for using positive On/Off logic. For negative logic On/Off modules, the circuit configuration is shown in Fig. 43. The On/Off pin should be pulled high with an external pull-up resistor (suggested value for the 4.5V to 14V input range is 20Kohms). When transistor Q1 is in the OFF state, the On/Off pin is pulled high, internal transistor Q2 is turned ON and the module is OFF. To turn the module ON, Q1 is turned ON pulling the On/Off pin low, turning transistor Q2 OFF resulting in the PWM Enable pin going high and the module turning ON. 14 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 VIN+ MODULE 16 PWM Enable I ON/OFF ON/OFF + VON/OFF GND 23K Q2 12.1K 22K Q1 14 24.9K Input Voltage (v) Rpullup1 12 Upper Limit 10 8 6 4 Lower Limit 2 _ 0 Figure 43. Circuit configuration for using negative On/Off logic. 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. Over Temperature Protection To provide protection in a fault condition, the unit is equipped with a thermal shutdown circuit. The unit will o shutdown if the overtemperature threshold of 135 C 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 TM The output voltage of the 12V TLynx module can be programmed to any voltage from 0.69dc 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. 44. The Upper Limit curve shows that for output voltages of 0.9V and lower, the input voltage must be lower than the maximum of 14V. The Lower Limit curve shows that for output voltages of 3.3V and higher, the input voltage needs to be larger than the minimum of 4.5V. LINEAGE POWER 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 Output Voltage (V) Figure 44. Output Voltage vs. Input Voltage Set Point Area plot showing limits where the output voltage can be set for different input voltages. Without an external resistor between Trim and GND pins, the output of the module will be 0.69Vdc. To calculate the value of the trim resistor, Rtrim for a desired output voltage, use the following equation: ⎤ ⎡ 6.9 Rtrim = ⎢ ⎥ kΩ ⎣ (Vo − 0.69 ) ⎦ Rtrim is the external resistor in kΩ Vo is the desired output voltage. Table 1 provides Rtrim values required for some common output voltages. Table 1 VO, set (V) 0.7 1.0 1.2 1.5 1.8 2.5 3.3 5.0 Rtrim (KΩ) 690 22.26 13.53 8.519 6.216 3.812 2.644 1.601 By using a ±0.5% tolerance trim resistor with a TC of ±100ppm, a set point tolerance of ±1.5% can be achieved as specified in the electrical specification. Remote Sense TM The 12V TLynx power modules have a Remote Sense feature to minimize the effects of distribution losses by regulating the voltage between the S+ and S– pins. The voltage between the S– and GND pins of the module must not drop below –0.2V. If Remote 15 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Sense is being used, the voltage between S+ and S– cannot be more than 0.5V larger than the voltage between VOUT and GND. Note that the output voltage of the module cannot exceed the specified maximum value. When the Remote Sense feature is not being used, connect the S+ pin to the VOUT pin and the S– pin to the GND pin. VIN(+) VO (+) S+ ON/OFF LOAD TRIM TM The 12V TLynx modules have monotonic start-up and shutdown behavior for any combination of rated input voltage, output current and operating temperature range. Startup into Pre-biased Output TM The 12V Pico TLynx 20A modules can start into a prebiased output as long as the prebias voltage is 0.5V less than the set output voltage. Note that prebias operation is not supported when output voltage sequencing is used. Output Voltage Sequencing TM R tri m GND Figure 45. Circuit configuration for programming output voltage using an external resistor. Voltage Margining Output voltage margining can be implemented in the TM 12V TLynx modules by connecting a resistor, Rmargin, from the Trim pin to the ground pin for margining-up up the output voltage and by connecting a resistor, Rmargindown, from the Trim pin to output pin for marginingdown. Figure 46 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 MODULE Q2 Trim Rmargin-up Rtrim The 12V TLynx modules include a sequencing feature, EZ-SEQUENCE that enables users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When not using the sequencing feature, either tie the SEQ pin to VIN or leave it unconnected. When an analog voltage is applied to the SEQ pin, the output voltage tracks this voltage until the output reaches the set-point voltage. The final value of the SEQ voltage must be set higher than the set-point voltage of the module. The output voltage follows the voltage on the SEQ pin on a one-to-one volt basis. By connecting multiple modules together, multiple modules can track their output voltages to the voltage applied on the SEQ pin. For proper voltage sequencing, first, input voltage is applied to the module. The On/Off pin of the module is left unconnected (or tied to GND for negative logic modules or tied to VIN for positive logic modules) so that the module is ON by default. After applying input voltage to the module, a minimum 10msec delay is required before applying voltage on the SEQ pin. During this time, a voltage of 50mV (± 20 mV) is maintained on the SEQ pin. This delay gives the module enough time to complete its internal power-up soft-start cycle. During the delay time, the SEQ pin should be held close to ground (nominally 50mV ± 20 mV). This is required to keep the internal op-amp out of saturation thus preventing output overshoot during the start of the sequencing ramp. By selecting resistor R1 (see fig. 47) according to the following equation R1 = Q1 GND 24950 ohms, V IN − 0.05 the voltage at the sequencing pin will be 50mV when the sequencing signal is at zero. Figure 46. Circuit Configuration for margining Output voltage Monotonic Start-up and Shutdown LINEAGE POWER 16 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 pullup resistor (suggested value 100KΩ) to a source of 6VDC or less. MODULE VIN+ Synchronization TM 499K + OUT R1 SEQ 10K - GND Figure 47. Circuit showing connection of the sequencing signal to the SEQ pin. After the 10msec delay, an analog voltage is applied to the SEQ pin and the output voltage of the module will track this voltage on a one-to-one volt bases until the output reaches the set-point voltage. To initiate simultaneous shutdown of the modules, the SEQ pin voltage is lowered in a controlled manner. The output voltage of the modules tracks the voltages below their set-point voltages on a one-to-one basis. A valid input voltage must be maintained until the tracking and output voltages reach ground potential. TM When using the EZ-SEQUENCE feature to control start-up of the module, pre-bias immunity during startup is disabled. The pre-bias immunity feature of the module relies on the module being in the diode-mode TM during start-up. When using the EZ-SEQUENCE feature, modules goes through an internal set-up time of 10msec, and will be in synchronous rectification mode when the voltage at the SEQ pin is applied. This will result in the module sinking current if a pre-bias voltage is present at the output of the module. When pre-bias immunity during start-up is required, the EZTM SEQUENCE feature must be disabled. For additional guidelines on using the EZ-SEQUENCETM feature please refer to Application Note AN04-008 “Application Guidelines for Non-Isolated Converters: Guidelines for Sequencing of Multiple Modules”, or contact the Lineage Power Technical representative for additional information. Power Good The 12V TLynx series of modules can be synchronized using an external signal. Details of the SYNC signal are provided in the Electrical Specifications table. If the synchronization function is not being used, leave the SYNC pin floating. Tunable LoopTM The 12V TLynxTM 20A modules have a new feature that optimizes transient response of the module called TM Tunable Loop . External capacitors are usually added to the output of the module for two reasons: to reduce output ripple and noise (see Figure 41) and to reduce output voltage deviations from the steady-state value in the presence of dynamic load current changes. Adding external capacitance however affects the voltage control loop of the module, typically causing the loop to slow down with sluggish response. Larger values of external capacitance could also cause the module to become unstable. TM The Tunable Loop allows the user to externally adjust the voltage control loop to match the filter network connected to the output of the module. The TM Tunable Loop is implemented by connecting a series R-C between the SENSE and TRIM pins of the module, as shown in Fig. 47. This R-C allows the user to externally adjust the voltage loop feedback compensation of the module. VOUT SENSE RTUNE MODULE CO CTUNE TRIM GND RTrim TM The 12V TLynx modules provide a Power Good (PGOOD) signal that is implemented with an opendrain output to indicate that the output voltage is within the regulation limits of the power module. The PGOOD signal will be de-asserted to a low state if any condition such as overtemperature, overcurrent or loss of regulation occurs that would result in the output voltage going ±11% outside the setpoint value. The PGOOD terminal should be connected through a LINEAGE POWER Figure. 48. Circuit diagram showing connection of RTUME and CTUNE to tune the control loop of the module. Recommended values of RTUNE and CTUNE for different output capacitor combinations are given in Tables 2 and 3. Table 2 shows the recommended values of RTUNE and CTUNE for different values of ceramic output capacitors up to 940μF that might be needed for an 17 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 application to meet output ripple and noise requirements. Selecting RTUNE and CTUNE according to Table 2 will ensure stable operation of the module. In applications with tight output voltage limits in the presence of dynamic current loading, additional output capacitance will be required. Table 3 lists recommended values of RTUNE and CTUNE in order to meet 2% output voltage deviation limits for some common output voltages in the presence of a 10A to 20A step change (50% of full load), with an input voltage of 12V. Please contact your Lineage Power technical representative to obtain more details of this feature as well as for guidelines on how to select the right value of external R-C to tune the module for best transient performance and stable operation for other output capacitance values or input voltages other than 12V. Table 2. General recommended values of of RTUNE and CTUNE for Vin=12V and various external ceramic capacitor combinations. Co 1x47μF 2x47μF 4x47μF 10x47μF 20x47μF RTUNE 240 240 240 CTUNE 1500pF 2700pF 5600pF 150 150 12nF 15nF Table 3. General Recommended values of RTUNE and CTUNE to obtain transient deviation of 2% of Vout for a 10A step load with Vin=12V. Vo Co RTUNE 5V 3.3V 2.5V 1.8V 1.2V 0.69V 6x47μF 6x47μF 5x47μF 12 2x + + + x330μF 330μF 6x47μF 2x330μF 4x330μF 330μF Polymer Polymer Polymer Polymer Polymer 220 220 200 CTUNE 5600pF 7500pF 18nF ΔV 99mV 66mV 50mV LINEAGE POWER 150 150 150 33nF 36mV 120nF 24mV 120nF 12mV 18 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Thermal Considerations 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 49. The preferred airflow direction for the module is in Figure 50. The derating data applies to airflow in either direction of the module’s long axis. Figure 50. Preferred airflow direction and location of hot-spot of the module (Tref). 25.4_ (1.0) Wind Tunnel PWBs Power Module Modules marked ruggedized with a “D” suffix operate up to an ambient of 105°C. For the remaining types de-rating curves for individual output voltages meet existing specifications up to 85°C. 76.2_ (3.0) x 12.7_ (0.50) Probe Location for measuring airflow and ambient temperature Air flow Figure 49. Thermal Test Setup. The thermal reference points, Tref used in the specifications are also shown in Figure 50. For reliable operation the temperatures at these points should not o exceed 125 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 19 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Shock and Vibration The ruggedized (-D version) of the modules are designed to withstand elevated levels of shock and vibration to be able to operate in harsh environments. The ruggedized modules have been successfully tested to the following conditions: Non operating random vibration: Random vibration tests conducted at 25C, 10 to 2000Hz, for 30 minutes each level, starting from 30Grms (Z axis) and up to 50Grms (Z axis). The units were then subjected to two more tests of 50Grms at 30 minutes each for a total of 90 minutes. Operating shock to 40G per Mil Std. 810F, Method 516.4 Procedure I: The modules were tested in opposing directions along each of three orthogonal axes, with waveform and amplitude of the shock impulse characteristics as follows: All shocks were half sine pulses, 11 milliseconds (ms) in duration in all 3 axes. Units were tested to the Functional Shock Test of MIL-STD-810, Method 516.4, Procedure I - Figure 516.4-4. A shock magnitude of 40G was utilized. The operational units were subjected to three shocks in each direction along three axes for a total of eighteen shocks. Operating vibration per Mil Std 810F, Method 514.5 Procedure I: The ruggedized (-D version) modules are designed and tested to vibration levels as outlined in MIL-STD-810F, Method 514.5, and Procedure 1, using the Power Spectral Density (PSD) profiles as shown in Table 1 and Table 2 for all axes. Full compliance with performance specifications was required during the performance test. No damage was allowed to the module and full compliance to performance specifications was required when the endurance environment was removed. The module was tested per MIL-STD-810, Method 514.5, Procedure I, for functional (performance) and endurance random vibration using the performance and endurance levels shown in Table 1 and Table 2 for all axes. The performance test has been split, with one half accomplished before the endurance test and one half after the endurance test (in each axis). The duration of the performance test was at least 16 minutes total per axis and at least 120 minutes total per axis for the endurance test. The endurance test period was 2 hours minimum per axis. Frequency (Hz) 10 30 40 50 90 110 130 140 Frequency (Hz) 10 30 40 50 90 110 130 140 LINEAGE POWER Table 1: Performance Vibration Qualification - All Axes PSD Level Frequency PSD Level Frequency (G2/Hz) (Hz) (G2/Hz) (Hz) 1.14E-03 170 2.54E-03 690 5.96E-03 230 3.70E-03 800 9.53E-04 290 7.99E-04 890 2.08E-03 340 1.12E-02 1070 2.08E-03 370 1.12E-02 1240 7.05E-04 430 8.84E-04 1550 5.00E-03 490 1.54E-03 1780 8.20E-04 560 5.62E-04 2000 Table 2: Endurance Vibration Qualification - All Axes PSD Level Frequency PSD Level Frequency (G2/Hz) (Hz) (G2/Hz) (Hz) 0.00803 170 0.01795 690 0.04216 230 0.02616 800 0.00674 290 0.00565 890 0.01468 340 0.07901 1070 0.01468 370 0.07901 1240 0.00498 430 0.00625 1550 0.03536 490 0.01086 1780 0.0058 560 0.00398 2000 PSD Level (G2/Hz) 1.03E-03 7.29E-03 1.00E-03 2.67E-03 1.08E-03 2.54E-03 2.88E-03 5.62E-04 PSD Level (G2/Hz) 0.00727 0.05155 0.00709 0.01887 0.00764 0.01795 0.02035 0.00398 20 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Example Application Circuit Requirements: Vin: 12V Vout: 1.8V Iout: 15A max., worst case load transient is from 10A to 15A ΔVout: Vin, ripple 1.5% of Vout (36mV) for worst case load transient 1.5% of Vin (180mV, p-p) Vin+ Vout+ VOUT S+ VIN RTUNE + CI2 MODULE MODULE CI1 CTUNE Q1 ON/OFF GND CO1 CO2 TRIM S- RTrim CI1 2 x 22μF/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20) CI2 200μF/16V bulk electrolytic CO1 5 x 47μF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19) CO2 CTune RTune 2 x 330μF/6.3V Polymer (e.g. Sanyo, Poscap) 22nF ceramic capacitor (can be 1206, 0805 or 0603 size) 150 ohms SMT resistor (can be 1206, 0805 or 0603 size) RTrim 6.19kΩ SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%) LINEAGE POWER + 21 Data Sheet July 24, 2009 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Mechanical Outline Dimensions are in millimeters and (inches). Tolerances: x.xx in. ± 0.02 in. (x.x mm ± 0.5 mm) [unless otherwise indicated] x.xxx in ± 0.010 in. (x.xx mm ± 0.25 mm) Top View Side View LINEAGE POWER 22 Data Sheet July 24, 2009 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Recommended Pad Layout Dimensions are in millimeters and (inches). Tolerances: x.xx in. ± 0.02 in. (x.x mm ± 0.5 mm) [unless otherwise indicated] x.xxx in ± 0.010 in. (x.xx mm ± 0.25 mm) LINEAGE POWER PIN FUNCTION 1 ON/OFF 2 VIN 3 SEQ 4 GND 5 VOUT 6 TRIM 7 S+ 8 S- 9 PGOOD 10 SYNC 23 Data Sheet July 24, 2009 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Packaging Details The 12V TLynxTM modules are 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 Dimensions: Inside Dimensions: Tape Width: LINEAGE POWER 330.2 mm (13.00”) 177.8 mm (7.00”) 24.00 mm (0.945”) 24 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Surface Mount Information Pick and Place The 12V TLynxTM 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. Nozzle Recommendations The module weight has been kept to a minimum by using open frame construction. Variables such as nozzle size, tip style, vacuum pressure and placement speed should be considered to optimize this process. The minimum recommended inside nozzle diameter for reliable operation is 3mm. The maximum nozzle outer diameter, which will safely fit within the allowable component spacing, is 7 mm. Lead Free Soldering TM The 12V TLynx modules are lead-free (Pb-free) and RoHS compliant and fully compatible in a Pb-free 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 Fig. 50. Soldering outside of the recommended profile requires testing to verify results and performance. not be broken until time of use. Once the original package is broken, the floor life of the product at conditions of ≤ 30°C 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. 300 Per J-STD-020 Rev. C Peak Temp 260°C 250 Reflow Temp (°C) Data Sheet July 24, 2009 200 150 * Min. Time Above 235°C 15 Seconds Heating Zone 1°C/Second Cooling Zone *Time Above 217°C 60 Seconds 100 50 0 Reflow Time (Seconds) Figure 50. Recommended linear reflow profile using Sn/Ag/Cu solder. 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). MSL Rating The 12V TLynxTM 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 LINEAGE POWER 25 12V TLynxTM: Non-isolated DC-DC Power Modules 4.5 – 14Vdc input; 0.69Vdc to 5.5Vdc output; 20A output current Data Sheet July 24, 2009 Ordering Information Please contact your Lineage Power Sales Representative for pricing, availability and optional features. Table 4. Device Codes Device Code Input Voltage Range Output Voltage Output Current On/Off Logic Comcodes APTS020A0X3-SRZ 4.5 – 14Vdc 0.69 – 5.5Vdc 20A Negative CC109127115 APTS020A0X43-SRZ 4.5 – 14Vdc 0.69 – 5.5Vdc 20A Positive CC109127123 APTS020A0X3-SRDZ 4.5 – 14Vdc 0.69 – 5.5Vdc 20A Negative CC109150232 Table 5. Coding Scheme TLynx Sequencing family feature. AP T Input voltage range Output current Output voltage On/Off logic S 020A0 X 4 T = with Seq. S = 4.5 14V X = w/o Seq. 20.0A X= 4= programmable positive output No entry = negative Options ROHS Compliance -SR -D Z S = Surface Mount R= Tape&Reel D = 105C operating ambient, 40G operating shock as per MIL Std 810F Z = ROHS6 Asia-Pacific Headquarters Tel: +65 6416 4283 World Wide Headquarters Lineage Power Corporation 3000 Skyline Drive, Mesquite, TX 75149, USA +1-800-526-7819 (Outside U.S.A.: +1-972-284-2626) www.lineagepower.com e-mail: [email protected] Europe, Middle-East and Africa Headquarters Tel: +49 898 780 672 80 India Headquarters Tel: +91 80 28411633 Lineage Power reserves the right to m ake changes to t he product(s) or inf ormation 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. © 2008 Lineage Pow er C orporation, (Mesquite, Texas) All I nternational Rights Res erved. LINEAGE POWER 26 Document No: DS07-012 ver. 1.12 PDF name: APTS020A0X_ds.pdf