Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Features RoHS Compliant 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 10A output current High efficiency – 93% at 3.3V full load (VIN = 12.0V) 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) Low output ripple and noise High Reliability: Applications Calculated MTBF = 4.4 M 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 Over temperature protection Output overcurrent protection (non-latching) Wide operating temperature range (-40°C to 85°C) 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 The 12V Austin LynxTM Programmable SIP power modules are non-isolated dc-dc converters that can deliver up to 10A of output current with full load efficiency of 93% 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). Their open-frame construction and small footprint enable designers to develop costand space-efficient solutions. Standard features include remote On/Off, remote sense, output voltage adjustment, 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: DS03-098 ver. 1.41 PDF name: austin lynx sip 12v x3.pdf Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A 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 All VIN 10.0 12.0 14.0 Vdc Maximum Input Current All IIN,max 6.5 Adc VO,set = 0.75Vdc IIN,No load 40 mA VO,set = 5.0Vdc IIN,No load 100 mA All IIN,stand-by 2.0 mA Inrush Transient All It Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN, min to VIN, max, IO= IOmax ; See Test configuration section) All 20 Input Ripple Rejection (120Hz) All 30 (VIN= VIN, min to VIN, max, IO=IO, max VO,set = 3.3Vdc) Input No Load Current (VIN = 12.0Vdc, IO = 0, module enabled) Input Stand-by Current (VIN = 12.0Vdc, module disabled) 2 0.5 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 15A, time-delay fuse (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 March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A 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% % VO, set All VO 0.7525 5.5 Vdc (VIN=IN, min, IO=IO, max, TA=25°C) 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 15 mVrms Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ 30 50 mVpk-pk μF Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Cout = 1μF ceramic//10μFtantalum capacitors) External Capacitance ESR ≥ 1 mΩ All CO, max ⎯ ⎯ 1000 ESR ≥ 10 mΩ All CO, max ⎯ ⎯ 5000 μF Output Current All Io 0 10 Adc Output Current Limit Inception (Hiccup Mode ) All IO, lim ⎯ 200 ⎯ % Io All IO, s/c ⎯ 3 ⎯ Adc (VO= 90% of VO, set) Output Short-Circuit Current (VO≤250mV) ( Hiccup Mode ) Efficiency VO, set = 0.75Vdc η 81.0 % VIN= VIN, nom, TA=25°C VO, set = 1.2Vdc η 87.5 % IO=IO, max , VO= VO,set VO,set = 1.5Vdc η 89.0 % VO,set = 1.8Vdc η 90.0 % VO,set = 2.5Vdc η 92.0 % VO,set = 3.3Vdc η 93.0 % Switching Frequency VO,set = 5.0Vdc η All fsw ⎯ 95.0 300 ⎯ kHz % All Vpk ⎯ 200 ⎯ mV Dynamic Load Response (dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C) Load Change from Io= 50% to 100% of Io,max; 1μF ceramic// 10 μF tantalum Peak Deviation Settling Time (Vo<10% peak deviation) All ts ⎯ 25 ⎯ μs (dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C) All Vpk ⎯ 200 ⎯ mV All ts ⎯ 25 ⎯ μs Load Change from Io= 100% to 50%of Io,max: 1μF ceramic// 10 μF tantalum Peak Deviation Settling Time (Vo<10% peak deviation) LINEAGE POWER 3 Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit All Vpk ⎯ 100 ⎯ mV Dynamic Load Response (dIo/dt=2.5A/μs; V VIN = VIN, nom; TA=25°C) Load Change from Io= 50% to 100% of Io,max; Co = 2x150 μF polymer capacitors Peak Deviation Settling Time (Vo<10% peak deviation) All ts ⎯ 25 ⎯ μs (dIo/dt=2.5A/μs; VIN = VIN, nom; TA=25°C) Load Change from Io= 100% to 50%of Io,max: Co = 2x150 μF polymer capacitors Peak Deviation All Vpk ⎯ 100 ⎯ mV Settling Time (Vo<10% peak deviation) All ts ⎯ 25 ⎯ μs General Specifications Parameter Min Calculated MTBF (IO=IO, max, TA=25°C) Weight LINEAGE POWER Typ Max 4,400,000 ⎯ 5.6 (0.2) Unit Hours ⎯ g (oz.) 4 Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter Device Symbol Min Typ Max Unit All VIH ― ― VIN, max V μA On/Off Signal interface (On/Off is open collector/drain logic input; Signal referenced to GND - See feature description section) Input High Voltage (Module ON) Input High Current All IIH ― ― 10 Input Low Voltage (Module OFF) All VIL ― ― 0.3 V Input Low Current All IIL ― ― 1 mA All Tdelay ― 3 ― msec All Tdelay ― 3 ― msec All Trise ― 4 6 msec ― 1 % VO, set ― ― 0.5 V ⎯ 125 ⎯ °C 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 = 10.0 to 14.0Vdc, TA = 25 C Remote Sense Range Overtemperature Protection All Tref (See Thermal Consideration section) Input Undervoltage Lockout Turn-on Threshold All 8.2 V Turn-off Threshold All 8.0 V LINEAGE POWER 5 Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Characteristic Curves 90 94 88 92 86 90 84 88 EFFICIENCY, (η) EFFICIENCY, (η) The following figures provide typical characteristics for the 12V Austin Lynx Programmable SIP modules at 25ºC. 82 80 78 76 Vin=14V 74 Vin=12V 72 Vin=10V 70 0 2 4 6 8 86 84 82 80 Vin=14V 78 Vin=12V 76 Vin=10V 74 10 0 2 OUTPUT CURRENT, IO (A) 93 88 91 86 89 EFFICIENCY, (η) EFFICIENCY, (η) 95 90 84 82 80 Vin=14V 78 Vin=12V 76 Vin=10V 74 4 6 8 10 87 Vin=14V 85 Vin=12V 83 Vin=10V 81 79 77 0 10 OUTPUT CURRENT, IO (A) Figure 2. Converter Efficiency versus Output Current (Vout = 1.5Vdc). 2 4 6 8 10 OUTPUT CURRENT, IO (A) Figure 5. Converter Efficiency versus Output Current (Vout = 3.3Vdc). 92 96 90 94 92 88 86 EFFICIENCY, (η) EFFICIENCY, (η) 8 Figure 4. Converter Efficiency versus Output Current (Vout = 2.5Vdc). 92 2 6 OUTPUT CURRENT, IO (A) Figure 1. Converter Efficiency versus Output Current (Vout = 0.75Vdc). 0 4 84 82 Vin=14V 80 Vin=12V 78 Vin=10V 76 0 2 4 6 8 Vin=14V 88 Vin=12V 86 Vin=10V 84 82 80 78 10 OUTPUT CURRENT, IO (A) Figure 3. Converter Efficiency versus Output Current (Vout = 1.8Vdc). LINEAGE POWER 90 0 2 4 6 8 10 OUTPUT CURRENT, IO (A) Figure 6. Converter Efficiency versus Output Current (Vout = 5.0Vdc). 6 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Data Sheet March 30, 2008 Characteristic Curves (continued) The following figures provide typical characteristics for the 12V Austin Lynx Programmable SIP modules at 25ºC. Io =10A 4 3 2 1 0 8 9 10 11 12 13 14 VO (V) (100mV/div) INPUT CURRENT, IIN (A) Io =5A 5 IO (A) (2A/div) Io =0A 6 OUTPUT CURRENT, OUTPUT VOLTAGE 7 INPUT VOLTAGE, VIN (V) TIME, t (2μs/div) Figure 9. Typical Output Ripple and Noise (Vin = 12V dc, Vo = 5.0 Vdc, Io=10A). LINEAGE POWER IO (A) (2A/div) VO (V) (100mV/div) Figure 11. Transient Response to Dynamic Load Change from 100% to 50% of full load (Vo = 5.0 Vdc). VO (V) (20mV/div) Figure 8. Typical Output Ripple and Noise (Vin = 12V dc, Vo = 2.5, Vdc, Io=10A). OUTPUT CURRENT, OUTPUT VOLTAGE TIME, t (5μs/div) OUTPUT VOLTAGE TIME, t (2μs/div) TIME, t (5μs/div) Figure 10. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 5.0Vdc). OUTPUT CURRENT, OUTPUT VOLTAG IO (A) (2A/div) VO (V) (200mV/div) VO (V) (20mV/div) OUTPUT VOLTAGE Figure 7. Input voltage vs. Input Current (Vo = 2.5Vdc). TIME, t (10μs/div) Figure 12. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 5.0 Vdc, Cext = 2x150 μF Polymer Capacitors). 7 Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Characteristic Curves (continued) VOn/off (V) (5V/div) VO (V)(2V/div) VIN (V) (5V/div) Figure 17. Typical Start-Up with Prebias (Vin = 12Vdc, Vo = 2.5Vdc, Io = 1A, Vbias =1.2Vdc). OUTPUT CURRENT, On/Off VOLTAGE OUTPUT VOLTAGE TIME, t (2 ms/div) Figure 15. Typical Start-Up Using Remote On/Off with external capacitors (Vin = 12Vdc, Vo = 5.0Vdc, Io = 10A, Co = 1050μF). LINEAGE POWER TIME, t (1ms/div) IO (A) (10A/div) On/Off VOLTAGE VO (V)(2V/div) TIME, t (2 ms/div) Figure 14. Typical Start-Up Using Remote On/Off (Vin = 12.0 Vdc, Vo = 5.0Vdc, Io = 10A). TIME, t (2 ms/div) Figure 16. Typical Start-Up with application of Vin (Vin = 12Vdc, Vo = 5.0Vdc, Io = 10A). OUTPUT VOLTAGE VO (V)(2V/div) OUTPUT VOLTAGE VOn/off (V) (5V/div) Figure 13. Transient Response to Dynamic Load Change from 100% of 50% full load (Vo = 5.0 Vdc, Cext = 2x150 μF Polymer Capacitors). OUTPUT VOLTAGE INPUT VOLTAGE TIME, t (10μs/div) VO (V) (0.5V/div) VO (V) (100mV/div) IO (A) (2A/div) OUTPUT CURRENT, OUTPUT VOLTAGE The following figures provide typical characteristics for the 12V Austin Lynx Programmable SIP modules at 25ºC. TIME, t (10ms/div) Figure 18. Output short circuit Current (Vin = 12.0Vdc, Vo = 0.75Vdc). 8 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Data Sheet March 30, 2008 Characteristic Curves (continued) The following figures provide thermal derating curves for the 12V Austin Lynx Programmable SIP modules. 12 12 11 OUTPUT CURRENT, Io (A) OUTPUT CURRENT, Io (A) 11 10 9 8 7 6 5 NC 4 100 LFM 3 200 LFM 2 20 30 40 50 60 70 80 90 O 10 9 8 7 6 5 NC 100 LFM 200 LFM 4 3 2 300 LFM 400 LFM 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 = 12.0Vdc, Vo=0.75Vdc). Figure 22. Derating Output Current versus Local Ambient Temperature and Airflow (Vin = 12.0Vdc, Vo=5.0 Vdc). 12 OUTPUT CURRENT, Io (A) 11 10 9 8 7 6 NC 5 100 LFM 4 200 LFM 3 300 LFM 2 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 = 12.0Vdc, Vo=1.8 Vdc). 12 OUTPUT CURRENT, Io (A) 11 10 9 8 7 6 5 NC 100 LFM 200 LFM 4 3 2 300 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 = 12.0Vdc, Vo=3.3 Vdc). LINEAGE POWER 9 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Data Sheet March 30, 2008 Test Configurations Design Considerations CURRENT PROBE TO OSCILLOSCOPE The 12V Austin Lynx Programmable 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. LTEST VIN(+) BATTERY 1μH CIN CS 1000μF Electrolytic 2x100μF Tantalum E.S.R.<0.1Ω @ 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 23. Input Reflected Ripple Current Test Setup. COPPER STRIP In a typical application, 4x47 µF low-ESR tantalum capacitors (AVX part #: TPSE476M025R0100, 47µF 25V 100 mΩ ESR tantalum capacitor) will be sufficient to provide adequate ripple voltage at the input of the module. To minimize the 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 4x47 µF tantalum capacitors and with 4x 22 µF ceramic capacitor (TDK part #: C4532X5R1C226M) at full load. RESISTIVE LOAD 1uF . 10uF 300 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(+) RLOAD VO Rcontact Rcontact COM 250 200 150 100 Tantalum 50 Ceramic 0 0 1 2 3 4 5 6 VO VIN Rdistribution Rdistribution Input Ripple Voltage (mVp-p) VO (+) Input Filtering Output Voltage (Vdc) Figure 26. Input ripple voltage for various output with 4x47 µF polymer and 4x22 µF ceramic capacitors at the input (full load). 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. VO. IO Efficiency η = LINEAGE POWER VIN. IIN x 100 % 10 Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Design Considerations (continued) Safety Considerations Output Filtering For safety agency approval the power module must be installed in compliance with the spacing and separation 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. The 12V Austin Lynx Programmable SIP module is designed for low output ripple voltage and will meet the maximum output ripple specification with 1 µF ceramic and 10 µF 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 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Data Sheet March 30, 2008 Feature Description Remote On/Off Overtemperature Protection The 12V Austin Lynx Programmable SIP power modules feature an On/Off pin for remote On/Off operation. 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 npn transistor between the On/Off pin and the ground pin (See Figure 27). 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 temperatures beyond its rating. The module will automatically restarts after it cools down. 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 10µA. 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. MODULE VIN+ R2 ON/OFF I ON/OFF + VON/OFF Q2 R1 PWM Enable R3 Q1 Q3 CSS R4 GND _ Figure 27. Circuit configuration for using positive logic 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 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. LINEAGE POWER 12 Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Feature Descriptions (continued) Output Voltage Programming The output voltage of the 12V Austin Lynx Programmable SIP module can be programmed to any voltage from 0.75 Vdc to 5.5 Vdc by connecting a single resistor (shown as Rtrim in Figure 28) 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: ⎡ 10500 ⎤ Rtrim = ⎢ − 1000⎥ Ω ⎣Vo − 0.7525 ⎦ Voltage Margining For example, to program the output voltage of the 12V Austin Lynx Programmable SIP module to 1.8 Vdc, Rtrim is calculated is follows: ⎤ ⎡ 10500 Rtrim = ⎢ − 1000⎥ 1 . 8 − 0 . 7525 ⎦ ⎣ Rtrim = 9.024 kΩ V IN(+) V O(+) ON/OFF TRIM 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. 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). Output voltage margining can be implemented in the 12V Austin Lynx Programmable SIP 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 29 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. LOAD Vo Rmargin-down R trim GND Austin Lynx or Lynx II Series Q2 Figure 28. Circuit configuration for programming output voltage using an external resistor. Trim Rmargin-up Table 1 provides Rtrim values for some common output voltages, while Table 2 provides values of the external voltage source, Vtrim for the same common output voltages. Table 1 VO, set (V) Q1 GND Rtrim (KΩ) 0.7525 Open 1.2 22.46 1.5 13.05 1.8 9.024 2.5 5.009 3.3 3.122 5.0 1.472 LINEAGE POWER Rtrim Figure 29. Circuit Configuration for margining Output voltage. Remote Sense The 12V Austin Lynx Programmable 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 30). The voltage 13 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Data Sheet March 30, 2008 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, leave the Remote Sense pin unconnected. Rdistribution Rcontact Rcontact Rdistribution VIN(+) VO Sense RLOAD Rdistribution Rcontact Rcontact Rdistribution COM COM Figure 30. Remote sense circuit configuration LINEAGE POWER 14 Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current 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 Figure 32. Note that the airflow is parallel to the long axis of the module as shown in figure 31. The derating data applies to airflow in either direction of the module’s long axis. 25.4_ (1.0) Wind Tunnel PWBs Power Module 76.2_ (3.0) x Air Flow Tref 8.3_ (0.325) Probe Location for measuring airflow and ambient temperature Air flow Figure 33. Thermal Test Set-up. Top View Heat Transfer via Convection Figure 31. Tref Temperature measurement location. The thermal reference point, Tref used in the specifications is shown in Figure 31. For reliable operation this temperature should not exceed 115 oC. 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 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. 15 Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Post solder Cleaning and Drying Considerations Post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. The result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. For guidance on appropriate soldering, cleaning and drying procedures, refer to Board Mounted Power Modules: Soldering and Cleaning Application Note. Through-Hole Lead-Free Soldering Information The RoHS-compliant through-hole products use the SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant components. They are designed to be processed through single or dual wave soldering machines. The pins have an RoHS-compliant finish that is compatible with both Pb and Pb-free wave soldering processes. A maximum preheat rate of 3°C/s is suggested. The wave preheat process should be such that the temperature of the power module board is kept below 210°C. For Pb solder, the recommended pot temperature is 260°C, while the Pb-free solder pot is 270°C max. Not all RoHS-compliant through-hole products can be processed with paste-through-hole Pb or Pb-free reflow process. If additional information is needed, please consult with your Lineage Power technical representative for more details. LINEAGE POWER 16 Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A 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.) Side View 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 * Remote sense feature is a customer specified option (code suffix “3”) LINEAGE POWER 17 Data Sheet March 30, 2008 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A 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 Pin Function 1 Vo 2 Vo 3 Vo,sense 4 Vo 5 GND 6 GND 7 VIN 8 VIN 9 TRIM 10 ON/OFF 18 12V Austin LynxTM SIP Non-isolated Power Modules, Programmable: 10Vdc – 14Vdc input; 0.75Vdc to 5.5Vdc Output;10A Output Current Data Sheet March 30, 2008 Ordering Information Please contact your Lineage Power Sales Representative for pricing, availability and optional features. Table 2. Device Codes Device Code Input Voltage Range Output Voltage Output Current Efficiency 3.3V @full load Connector Type AXA010A0X3 10 – 14Vdc 0.75 – 5.5Vdc 10 A 93.0% TH 108970120 AXA010A0X3Z 10 – 14Vdc 0.75 – 5.5Vdc 10 A 93.0% TH CC109101318 Comcodes * Remote sense feature is active and pin 6 is added with code suffix “3” -Z refers to RoHS compliant Versions Table 3. Device Option Option* Long Pins 5.08 mm ± 0.25mm (0.200 in. ± 0.010 in.) Suffix** 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 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 89 6089 286 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. © 2008 Lineage Power Corporation, (Mesquite, Texas) All International Rights Reserved. LINEAGE POWER 19 Document No: DS03-098 ver. 1.41 PDF name: austin lynx sip 12v x3.pdf