Data Sheet March 31, 2008 Austin MinilynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5 Vdc Output; 3A 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 3A output current High efficiency – 91% at 3.3V full load (VIN = 12.0V) Small size and low profile: 22.9 mm x 10.2 mm x 6.63 mm (0.90 in x 0.4in x 0.261 in) Low output ripple and noise High Reliability: Calculated MTBF = 10.8M hours at 25oC Full-load Applications Constant switching frequency (300 kHz) Output voltage programmable from 0.75 Vdc to 5.5 Vdc via external resistor Distributed power architectures Intermediate bus voltage applications Line Regulation: 0.3% (typical) Telecommunications equipment Load Regulation: 0.4% (typical) Servers and storage applications Temperature Regulation: 0.4 % (typical) Networking equipment Remote On/Off Enterprise Networks Output overcurrent protection (non-latching) Latest generation IC’s (DSP, FPGA, ASIC) and Microprocessor powered applications Wide operating temperature range (-40°C to 85°C) 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 Austin MiniLynxTM 12V SIP (single-inline) power modules are non-isolated DC-DC converters that can deliver up to 3A of output current with full load efficiency of 91% at 3.3V output. These modules provide precisely regulated output voltage programmable via external resistor from 0.75Vdc to 5.5Vdc over a wide range of input voltage (VIN = 8.3 - 14V). Their open-frame construction and small footprint enable designers to develop cost- and space-efficient solutions. In addition to sequencing, standard features include remote On/Off, programmable output voltage and over current 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: DS04-041 ver. 1.31 PDF name: minilynx_sip_12v_ds.pdf Data Sheet March 31, 2008 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A 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 Vo,set ≤ 3.63 VIN 8.3 12 14 Vdc Vo,set > 3.63 VIN 8.3 12 13.2 Vdc All IIN,max 2.2 Adc VO,set = 0.75Vdc IIN,No load 45 mA VO,set = 5.5Vdc IIN,No load 150 mA All IIN,stand-by 1.2 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 30 Input Ripple Rejection (120Hz) All 30 Operating Input Voltage Maximum Input Current (VIN= VIN, min to VIN, max, IO=IO, max VO,set = 3.3Vdc) Input No Load Current (VIN = VIN, nom Vdc, IO = 0, module enabled) Input Stand-by Current (VIN = VIN, nom, module disabled) 2 0.4 2 As mAp-p dB CAUTION: This power module is not internally fused. An input line fuse must always be used. This power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of a complex power architecture. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fastacting fuse with a maximum rating of 6 A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information. LINEAGE POWER 2 Data Sheet March 31, 2008 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Electrical Specifications (continued) Parameter Output Voltage Set-point Device Symbol Min Typ Max Unit All VO, set -2.5 VO, set +2.5 % VO, set All VO, set -3% ⎯ +4% % VO, set All VO 0.7525 5.5 Vdc (VIN=VIN, 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 ⎯ 10 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 ⎯ 3000 μF 3 Adc All CO, max ⎯ Output Current All Io 0 Output Current Limit Inception (Hiccup Mode ) All IO, lim ⎯ 200 ⎯ % Io All IO, s/c ⎯ 2 ⎯ Adc VO,set = 1.2Vdc η 81.5 % VIN= VIN, nom, TA=25°C VO, set = 1.5Vdc η 84.0 % IO=IO, max , VO= VO,set VO,set = 1.8Vdc η 86.0 % VO,set = 2.5Vdc η 89.0 % VO,set = 3.3Vdc η 91.0 % ESR ≥ 10 mΩ (VO= 90% of VO, set) Output Short-Circuit Current (VO≤250mV) ( Hiccup Mode ) Efficiency Switching Frequency VO,set = 5.0Vdc η All fsw ⎯ 93.0 300 ⎯ 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) Load Change from Io= 100% to 50%of Io,max: 1μF ceramic// 10 μF tantalum All Vpk ⎯ 200 ⎯ mV All ts ⎯ 25 ⎯ μs Peak Deviation Settling Time (Vo<10% peak deviation) LINEAGE POWER 3 Data Sheet March 31, 2008 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit All Vpk ⎯ 75 ⎯ 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 ⎯ 100 ⎯ 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 ⎯ 75 ⎯ mV Settling Time (Vo<10% peak deviation) All ts ⎯ 100 ⎯ μs General Specifications Parameter Min Calculated MTBF (IO=IO, max, TA=25°C) per Telecordia SR-332 Issue 1: Method 1 Case 3 Weight LINEAGE POWER Typ Max 10,865,819 ⎯ 2.8 (0.1) Unit Hours ⎯ g (oz.) 4 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Data Sheet March 31, 2008 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 On/Off Signal interface Device code with Suffix “4” – Positive logic (On/Off is open collector/drain logic input; Signal referenced to GND - See feature description section) Input High Voltage (Module ON) All VIH ― ― VIN, max V Input High Current All IIH ― ― 10 μA Input Low Voltage (Module OFF) All VIL -0.2 ― 0.3 V Input Low Current All IIL ― 0.2 1 mA Input High Voltage (Module OFF) All VIH 2.5 Input High Current All IIH Input Low Voltage (Module ON) All VIL Input low Current All IIL All Tdelay All All Device Code with no suffix – Negative Logic (On/OFF pin is open collector/drain logic input with external pull-up resistor; signal referenced to GND) -0.2 ― VIN,max Vdc 0.2 1 mA ― 0.3 Vdc ― 10 μA ― 3 ― msec Tdelay ― 3 ― msec Trise ― 4 ― msec ― 1 % VO, set 140 ⎯ °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 = VIN, min to VIN, max , TA = 25 C Overtemperature Protection All Tref ⎯ (See Thermal Consideration section) Input Undervoltage Lockout Turn-on Threshold All 7.9 V Turn-off Threshold All 7.8 V LINEAGE POWER 5 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Data Sheet March 31, 2008 Characteristic Curves 88 92 86 90 84 88 EFFICIENCY, η (%) EFFICIENCY, η (%) The following figures provide typical characteristics for the Austin MiniLynxTM 12 V SIP modules at 25ºC. 82 80 78 76 VIN = 8.3V 74 VIN = 12.0V 72 VIN =14.0V 70 0 0.6 1.2 1.8 86 84 82 80 VIN = 8.3V 78 VIN =12.0V 76 VIN = 14.0V 74 2.4 0 3 0.6 OUTPUT CURRENT, IO (A) 2.4 3 Figure 4. Converter Efficiency versus Output Current (Vout = 2.5Vdc). 88 95 86 92 84 89 EFFICIENCY, η (%) EFFICIENCY, η (%) 1.8 OUTPUT CURRENT, IO (A) Figure 1. Converter Efficiency versus Output Current (Vout = 1.2Vdc). 82 80 78 76 VIN = 8.3V 74 VIN = 12.0V 72 VIN = 14.0V 70 0 0.6 1.2 1.8 2.4 86 83 80 VIN = 8.3V 77 VIN = 12.0V 74 VIN = 14.0V 71 0 3 0.6 OUTPUT CURRENT, IO (A) 96 86 93 EFFICIENCY, η (%) 99 88 84 82 80 78 VIN = 8.3V VIN = 12.0V 74 VIN = 14.0V 72 0 0.6 1.2 1.8 2.4 OUTPUT CURRENT, IO (A) Figure 3. Converter Efficiency versus Output Current (Vout = 1.8Vdc). LINEAGE POWER 1.8 2.4 3 Figure 5. Converter Efficiency versus Output Current (Vout = 3.3Vdc). 90 76 1.2 OUTPUT CURRENT, IO (A) Figure 2. Converter Efficiency versus Output Current (Vout = 1.5Vdc). EFFICIENCY, η (%) 1.2 90 87 84 81 VIN = 8.3V 78 VIN = 12.0V 75 VIN =14.0V 72 3 0 0.6 1.2 1.8 2.4 3 OUTPUT CURRENT, IO (A) Figure 6. Converter Efficiency versus Output Current (Vout = 5.0Vdc). 6 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Data Sheet March 31, 2008 Characteristic Curves (continued) 0.2 0 7 8 9 10 11 12 INPUT VOLTAGE, VIN (V) VO (V) (10mV/div) OUTPUT VOLTAGE Figure 7. Input voltage vs. Input Current (Vout =3.3Vdc). TIME, t (1μs/div) VO (V) (10mV/div) OUTPUT VOLTAGE Figure 8. Typical Output Ripple and Noise (VIN = 12.0V dc, Vo = 0.75Vdc, Io=3A). TIME, t (1μs/div) Figure 9. Typical Output Ripple and Noise (VIN = 12.0V dc, Vo = 3.3Vdc, Io=3A). LINEAGE POWER 13 14 VO (V) (200mV/div) IO (A) (1A/div) 0.4 TIME, t (5 μs/div) Figure 10. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3Vdc). VO (V) (200mV/div) 0.6 IO (A) (1A/div) 0.8 OUTPUT CURRENT, OUTPUT VOLTAGE Io=0A 1 TIME, t (5 μs/div) Figure 11. Transient Response to Dynamic Load Change from 100% to 50% of full load (Vo = 3.3 Vdc). VO (V) (50mV/div) INPUT CURRENT, IIN (A) Io=1.5A 1.2 IO (A) (1A/div) Io=3A 1.4 OUTPUT CURRENT, OUTPUT VOLTAGE 1.6 OUTPUT CURRENT, OUTPUT VOLTAGE The following figures provide typical characteristics for the Austin MiniLynxTM 12V SIP modules at 25ºC. TIME, t (50μs/div) Figure 12. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vo = 3.3 Vdc, Cext = 2x150 μF Polymer Capacitors). 7 Data Sheet March 31, 2008 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Characteristic Curves (continued) Low-ESR external capacitors (7x150uF Polymer) VO (V) (1V/div) VIN (V) (10V/div) INPUT VOLTAGE OUTPUT VOLTAGE TIME, t (1ms/div) Figure 15. Typical Start-Up Using Remote On/Off with VO (V) (0.5V/div) TIME, t (1ms/div) Figure 17 Typical Start-Up Using Remote On/Off with Prebias (VIN = 12.0Vdc, Vo = 1.8Vdc, Io = 1.0A, Vbias =1.0Vdc). OUTPUT CURRENT, VO (V) (1V/div) VOn/off(V) (10V/div) ON/OFF VOLTAGE OUTPUT VOLTAGE Figure 14. Typical Start-Up Using Remote On/Off (VIN = 12.0Vdc, Vo = 3.3Vdc, Io = 3A). OUTPUT VOLTAGE VO (V) (1V/div) VOn/off(V) (10V/div) TIME, t (1ms/div) TIME, t (1ms/div) Figure 16. Typical Start-Up with application of Vin (VIN = 12.0Vdc, Vo = 3.3Vdc, Io = 3A). VOn/off(V) (10V/div) OUTPUT VOLTAGE ON/OFF VOLTAGE Figure 13. Transient Response to Dynamic Load Change from 100% of 50% full load (Vo = 3.3Vdc, Cext = 2x150 μF Polymer Capacitors). ON/OFF VOLTAGE TIME, t (50μs/div) IO (A) (5A/div) OUTPUT CURRENT, OUTPUTVOLTAGE IO (A) (1A/div) VO (V) (50mV/div) The following figures provide typical characteristics for the Austin MiniLynxTM 12 V SIP modules at 25ºC. TIME, t (20ms/div) Figure 18. Output short circuit Current (VIN = 12.0Vdc, Vo = 0.75Vdc). (VIN = 12.0Vdc, Vo = 3.3Vdc, Io = 3A, Co = 1050μF). LINEAGE POWER 8 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Data Sheet March 31, 2008 Characteristic Curves (continued) 3.5 3.5 3 3.0 2.5 2 1.5 1 100 LFM 0.5 0 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 MiniLynxTM 12 V SIP modules. 2.5 2.0 1.5 1.0 100 LFM 0.5 0 LFM 0.0 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 = 12.0 Vdc, Vo=0.75Vdc). Figure 22. Derating Output Current versus Local Ambient Temperature and Airflow (VIN = 12 Vdc, Vo=5.0 Vdc). OUTPUT CURRENT, Io (A) 3.5 3.0 2.5 2.0 1.5 1.0 100 LFM 0.5 0 LFM 0.0 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 = 12.0Vdc, Vo=1.8 Vdc). OUTPUT CURRENT, Io (A) 3.5 3.0 2.5 2.0 1.5 1.0 100 LFM 0.5 0 LFM 0.0 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 = 12.0Vdc, Vo=3.3 Vdc). LINEAGE POWER 9 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Data Sheet March 31, 2008 Test Configurations Design Considerations CURRENT PROBE TO OSCILLOSCOPE LTEST VIN(+) BATTERY 1μH CIN CS 1000μF Electrolytic 2x100μF Tantalum E.S.R.<0.1Ω @ 20°C 100kHz Input Filtering Austin MiniLynxTM 12V SIP module should be connected to a low -impedance source. A highly inductive source can affect the stability of the module. An input capacitance must be placed directly adjacent to the input pin of the module, to minimize input ripple voltage and ensure module stability in the presence of inductive traces that supply input voltage to the module. 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 VO (+) RESISTIVE LOAD 1uF . 10uF SCOPE In a typical application, a 22 µF low-ESR ceramic capacitors will be sufficient to provide adequate ripple voltage at the input of the module. To further minimize ripple voltage at the input, additional ceramic capacitors are recommended at the input of the module. Figure 26 shows input ripple voltage (mVp-p) for various outputs with a 10 µF or a 22µF input ceramic capacitor at full load. 350 1 x 10uF 300 1 x 22uF 250 COM 200 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. 150 100 50 0 0.5 Rdistribution Rcontact Rcontact VIN(+) VO Rcontact Rcontact COM 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 Figure 26. Input ripple voltage for various outputs with 10 µF or a 22 µF ceramic capacitor at the input (full-load). RLOAD VO VIN Rdistribution 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. VO. IO Efficiency η = LINEAGE POWER VIN. IIN x 100 % 10 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Data Sheet March 31, 2008 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. 60950-103, and VDE 0850:2001-12 (EN60950-1) Licensed. TM The Austin MiniLynx 12 V 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 6A in the positive input lead. 11 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Data Sheet March 31, 2008 Feature Description VIN+ Remote On/Off Austin MiniLynxTM 12V SIP power modules feature an On/Off pin for remote On/Off operation. Two On/Off TM logic options are available in the Austin MiniLynx 12V series modules. Positive Logic On/Off signal, device code suffix “4”, turns the module ON during a logic High on the On/Off pin and turns the module OFF during a logic Low. Negative logic On/Off signal, no device code suffix, turns the module OFF during logic High and turns the module ON during logic Low. For positive logic modules, the circuit configuration for using the On/Off pin is shown in Figure 27. The On/Off pin is an open collector/drain logic input signal (Von/Off) that is referenced to ground. During a logichigh (On/Off pin is pulled high internal to the module) when the transistor Q1 is in the Off state, the power module is ON. Maximum allowable leakage current of the transistor when Von/off = VIN,max is 10µA. Applying a logic-low when the transistor Q1 is turnedOn, the power module is OFF. During this state VOn/Off must be less than 0.3V. When not using positive logic On/off pin, leave the pin unconnected or tie to VIN. MODULE VIN+ ON/OFF I ON/OFF VON/OFF Q2 R1 PWM Enable R3 Q1 + VON/OFF PWM Enable R1 Q2 Q1 CSS R2 GND _ Figure 28. Circuit configuration for using negative 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 3.5A. 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 Q3 CSS R4 GND I ON/OFF ON/OFF Input Undervoltage Lockout R2 + MODULE Rpull-up _ Figure 27. Circuit configuration for using positive logic On/OFF. To provide over temperature protection in a fault condition, the unit relies upon the thermal protection feature of the controller IC. The unit will shutdown if the thermal reference point Tref2, (see Figure 31) o exceeds 140 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. For negative logic On/Off devices, the circuit configuration is shown is Figure 28. The On/Off pin is pulled high with an external pull-up resistor (typical Rpull-up = 68k, +/- 5%). 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 2.5 Vdc. 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. LINEAGE POWER 12 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Data Sheet March 31, 2008 Feature Descriptions (continued) Output Voltage Programming The output voltage of the Austin MiniLynxTM 12V can be programmed to any voltage from 0.75Vdc to 5.5Vdc by connecting a resistor (shown as Rtrim in Figure 29) between Trim and GND pins of the module. Without an external resistor between Trim and GND pins, the output of the module will be 0.7525Vdc. To calculate the value of the trim resistor, Rtrim for a desired output voltage, use the following equation: ⎡ 10500 ⎤ Rtrim = ⎢ − 1000⎥ Ω ⎣Vo − 0.7525 ⎦ Rtrim is the external resistor in Ω Vo is the desired output voltage For example, to program the output voltage of the TM Austin MiniLynx 12V module to 1.8V, Rtrim is calculated as follows: 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. Voltage Margining Output voltage margining can be implemented in the TM Austin MiniLynx modules by connecting a resistor, Rmargin-up, from the Trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, Rmargin-down, from the Trim pin to the Output pin for margining-down. Figure 30 shows the circuit configuration for output voltage margining. The POL Programming Tool, available at www.lineagepower.com under the Design Tools section, also calculates the values of Rmargin-up and Rmargin-down for a specific output voltage and % margin. Please consult your local Lineage Power technical representative for additional details. Vo ⎤ ⎡ 10500 Rtrim = ⎢ − 1000⎥ ⎦ ⎣1.8 − 0.7525 Rmargin-down Rtrim = 9.024 kΩ Austin Lynx or Lynx II Series Q2 V IN(+) V O(+) Trim Rmargin-up ON/OFF LOAD TRIM Rtrim R trim Q1 GND GND Figure 29. Circuit configuration to program output voltage using an external resistor. Figure 30. Circuit Configuration for margining Output voltage. Table 1 provides Rtrim values required for some common output voltages. Table 1 VO, set (V) 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 13 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Data Sheet March 31, 2008 Thermal Considerations Power modules operate in a variety of thermal environments; however, sufficient cooling should 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 setup 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 Airflow 5.97_ (0.235) Probe Loc ation for measuring airflow and ambient temperature Air flow Figure 32. Thermal Test Set-up. Tref1 Heat Transfer via Convection Increased airflow over the module enhances the heat transfer via convection. Thermal derating curves showing the maximum output current that can be delivered by various module versus local ambient temperature (TA) for natural convection and up to 0.5m/s (100 ft./min) are shown in the Characteristics Curves section. Tref2 Figure 31. Tref Temperature measurement location. The thermal reference point, Tref used in the specifications is shown in Figure 32. For reliable operation this temperature should not exceed 115oC. 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 14 Data Sheet March 31, 2008 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A 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 RoHScompliant 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 Pbfree reflow process. If additional information is needed, please consult with your Lineage Power technical representative for more details. LINEAGE POWER 15 Data Sheet March 31, 2008 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A 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.) Top View Side View PIN FUNCTION 1 Vo 2 Trim 3 GND 4 VIN 5 On/Off LINEAGE POWER 16 Data Sheet March 31, 2008 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A 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 Trim 3 GND 4 VIN 5 On/Off LINEAGE POWER 17 Austin MiniLynxTM 12V SIP Non-isolated Power Modules: 8.3 – 14Vdc Input; 0.75Vdc to 5.5Vdc Output; 3A output current Data Sheet March 31, 2008 Ordering Information Please contact your Lineage Power Sales Representative for pricing, availability and optional features. Table 2. Device Codes Device Code Input Voltage Output Voltage Output Current Efficiency 3.3V@ 3A Connector Type AXA003A0X 8.3 – 14Vdc 3A 91.0% Comcodes 108992624 AXA003A0XZ 8.3 – 14Vdc 0.75 – 5.5Vdc 0.75 – 5.5Vdc 3A 91.0% SIP SIP AXA003A0X4 8.3 – 14Vdc 0.75 – 5.5Vdc 3A 91.0% SIP 108992632 AXA003A0X4Z 8.3 – 14Vdc 0.75 – 5.5Vdc 3A 91.0% SIP CC109104824 CC109101268 -Z refers to RoHS compliant Versions 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 18 Document No: DS04-041 ver. 1.31 PDF name: minilynx_sip_12v_ds.pdf