PDT012A0X3

Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-Isolated DC-DC Power Modules 3Vdc –14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A Output Current Features                Vout+ Compliant to RoHS EU Directive 2002/95/EC (Z versions) Compatible in a Pb-free or SnPb reflow environment (Z versions) DOSA based Wide Input voltage range (3Vdc-14.4Vdc) Output voltage programmable from 0.6Vdc to 5.5Vdc via external resistor Tunable LoopTM to optimize dynamic output voltage response Power Good signal Fixed switching frequency Output overcurrent protection (non-latching) Overtemperature protection Remote On/Off Ability to sink and source current Cost efficient open frame design Small size: 12.2 mm x 12.2 mm x 8.5 mm (0.48 in x 0.48 in x 0.335 in) 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 † RoHS Compliant Applications       Distributed power architectures Intermediate bus voltage applications Telecommunications equipment Servers and storage applications Networking equipment Industrial equipment VIN PGOOD VOUT SENSE RTUNE Vin+  MODULE Cin  CTUNE Co Q1 ON/OFF GND TRIM RTrim Description The 12A Analog Pico DLynx power modules are non-isolated dc-dc converters that can deliver up to 12A of output current. These modules operate over a wide range of input voltage (VIN = 3Vdc-14.4Vdc) and provide a precisely regulated output voltage from 0.6Vdc to 5.5Vdc, programmable via an external resistor. Features include remote On/Off, adjustable output voltage, over current and over temperature protection. The Tunable LoopTM feature 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. † ‡ TM 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: DS10-008 ver. 1.12 PDF name: PVX012A0X.pdf Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A 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 Input Voltage Continuous Operating Ambient Temperature (see Thermal Considerations section) Storage Temperature All -D version All TA TA Tstg -40 -40 -55 85 105 125 °C °C °C Device All Symbol VIN Min -0.3 Max 15 Unit Vdc Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Operating Input Voltage Maximum Input Current (VIN=3V to 14V, IO=IO, max ) Input No Load Current (VIN = 12.0Vdc, IO = 0, module enabled) Input Stand-by Current (VIN = 12.0Vdc, module disabled) Inrush Transient Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN =0 to 14V, IO= IOmax ; See Test Configurations) Input Ripple Rejection (120Hz) VO,set = 0.6 Vdc VO,set = 5Vdc All All All All IIN,No load IIN,No load IIN,stand-by It 40 -60 2 Device All All Symbol VIN IIN,max Min 3 Typ ⎯ Max 14.4 12 Unit Vdc Adc mA mA mA 45 75 0.65 1 As mAp-p dB 2 LINEAGE POWER 2 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Electrical Specifications (continued) Parameter Output Voltage Set-point (with 0.1% tolerance for external resistor used to set output voltage) Output Voltage (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) Remote Sense Range Output Regulation (for VO ≥ 2.5Vdc) Line (VIN=VIN, min to VIN, max) Load (IO=IO, min to IO, max) Output Regulation (for VO < 2.5Vdc) Line (VIN=VIN, min to VIN, max) Load (IO=IO, min to IO, max) Temperature (Tref=TA, min to TA, max) Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 22 μF ceramic capacitors) Peak-to-Peak (5Hz to 20MHz bandwidth) RMS (5Hz to 20MHz bandwidth) External Capacitance 1 TM Device All All All All All All All All All Symbol VO, set VO, set VO Min -1.0 -3.0 0.6 Typ Max +1.0 Unit % VO, set % VO, set Vdc Vdc % VO, set mV mV mV % VO, set ⎯ +3.0 5.5 0.5 ⎯ ⎯ ⎯ ⎯ ⎯ +0.4 10 5 10 0.4 All All ⎯ 50 20 100 38 mVpk-pk mVrms Without the Tunable Loop ESR ≥ 1 mΩ With the Tunable Loop ESR ≥0.15 mΩ ESR ≥ 10 mΩ TM All All All All All All VO,set = 0.6Vdc VO, set = 1.2Vdc VO,set = 1.8Vdc VO,set = 2.5Vdc VO,set = 3.3Vdc VO,set = 5.0Vdc CO, max CO, max CO, max Io IO, lim IO, s/c η η η η η η fsw 22 22 22 0 ⎯ ⎯ ⎯ 47 1000 5000 12 μF μF μF Adc % Io,max A % % % % % % Output Current (in either sink or source mode) Output Current Limit Inception (Hiccup Mode) (current limit does not operate in sink mode) Output Short-Circuit Current (VO≤250mV) ( Hiccup Mode ) Efficiency VIN= 12Vdc, TA=25°C IO=IO, max , VO= VO,set 200 1.5 77.5 85.9 89.6 92.4 93.4 95.0 ⎯ 600 ⎯ Switching Frequency 1 All TM kHz 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 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current General Specifications Parameter Calculated MTBF (IO=0.8IO, max, TA=40°C) Telecordia Issue 2 Method 1 Case 3 Weight Device All ⎯ Min Typ 16,817,995 2.33(0.082) ⎯ Max Unit Hours g (oz.) Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter 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 Input High Voltage Logic Low (Module OFF) Input Low Current Input Low Voltage 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 Input High Voltage Logic Low (Module ON) Input low Current Input Low Voltage 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 (See Thermal Considerations section) All Tref 120/ 130 °C All All IIL VIL ― -0.2 ― ― 10 0.3 μA Vdc All All IIH VIH ― 3.5 ― ― 1 VIN, max mA Vdc All All IIL VIL ⎯ -0.2 ⎯ ⎯ 10 0.3 μA V All All IIH VIH 3.5 ⎯ ⎯ 1 VIN,max mA V Device Symbol Min Typ Max Unit All Tdelay ― 5 ― msec All Tdelay ― 5 ― msec All Trise ― 2 ― 3.0 msec % VO, set LINEAGE POWER 4 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Feature Specifications (cont.) Parameter Input Undervoltage Lockout Turn-on Threshold Turn-off Threshold Hysteresis PGOOD (Power Good) Signal Interface Open Drain, Vsupply ≤ 5VDC Overvoltage threshold for PGOOD Undervoltage threshold for PGOOD Pulldown resistance of PGOOD pin All 112.5 87.5 30 %VO, set %VO, set Ω All All All 2.6 0.3 2.9 Vdc Vdc Vdc Device Symbol Min Typ Max Units LINEAGE POWER 5 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Characteristic Curves The following figures provide typical characteristics for the 12A Analog Pico DLynxTM at 0.6Vo and 25oC. 90 85 80 12 OUTPUT CURRENT, Io (A) 10 8 6 4 2 0 55 65 75 Standard Part (85° C) NC 0.5m/s (100LFM) 1.5m/s (300LFM) EFFICIENCY, η (%) 75 70 65 60 55 50 0 Vin=3.3V Vin=12V Vin=14.4 V Ruggedized (D) Part (105° C) 1m/s (200LFM) 2m/s (400LFM) 2 4 6 8 10 12 85 95 O 105 OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 1. Converter Efficiency versus Output Current. Figure 2. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE VO (V) (20mV/div) TIME, t (1μs/div) IO (A) (10Adiv) VO (V) (5mV/div) TIME, t (20μs /div) Figure 3. Typical output ripple and noise (CO=22μF ceramic, VIN = 12V, Io = Io,max, ). Figure 4. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout3x47uF+6x330uF, CTune-47nF, RTune-180ohms ON/OFF VOLTAGE VON/OFF (V) (5V/div) INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT VOLTAGE VO (V) (200mV/div) TIME, t (2ms/div) VO (V) (200mV/div) VIN (V) (5V/div) TIME, t (2ms/div) Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 6. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 6 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Characteristic Curves The following figures provide typical characteristics for the 12A Analog Pico DLynxTM at 1.2Vo and 25oC. 95 90 Vin=3.3V Vin=12V 12 OUTPUT CURRENT, Io (A) 85 10 8 6 4 2 0 55 65 Standard Part (85 C) NC 0.5m/s (100LFM) 1.5m/s (300LFM) 1m/s (200LFM) 2m/s (400LFM) EFFICIENCY, η (%) 80 75 70 65 60 55 50 0 2 4 6 8 10 12 Vin=14.4 V Ruggedized (D) Part (105° C) 75 85 95 O 105 OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 7. Converter Efficiency versus Output Current. Figure 8. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE VO (V) (20mV/div) OUTPUT CURRENT, OUTPUT VOLTAGE TIME, t (1μs/div) IO (A) (10Adiv) VO (V) (10mV/div) TIME, t (20μs /div) Figure 9. Typical output ripple and noise (CO=22μF ceramic, VIN = 12V, Io = Io,max, ). Figure 10. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout1x47uF+3x330uF, CTune-10nF & RTune-220ohms ON/OFF VOLTAGE VON/OFF (V) (5V/div) INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT VOLTAGE VO (V) (500mV/div) TIME, t (2ms/div) VO (V) (500mV/div) VIN (V) (5V/div) TIME, t (2ms/div) Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 7 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Characteristic Curves The following figures provide typical characteristics for the 12A Analog Pico DLynxTM at 1.8Vo and 25oC. 100 95 90 12 OUTPUT CURRENT, Io (A) EFFICIENCY, η (%) Vin=3.3V 10 8 6 4 2 0 55 65 NC 0.5m/s (100LFM) Standard Part (85° C) 85 80 75 70 65 60 0 2 4 6 8 10 12 Vin=12V Vin=14.4 V 1m/s (200LFM) 1.5m/s (300LFM) 2m/s (400LFM) Ruggedized (D) Part (105° C) 75 85 95 O 105 OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 13. Converter Efficiency versus Output Current. Figure 14. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE VO (V) (20mV/div) TIME, t (1μs/div) IO (A) (10Adiv) VO (V) (20mV/div) TIME, t (20μs /div) Figure 15. Typical output ripple and noise (CO=22μF ceramic, VIN = 12V, Io = Io,max, ). Figure 16. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout1x47uF+2x330uF,CTune-5600pF & RTune-270ohms ON/OFF VOLTAGE VON/OFF (V) (5V/div) INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT VOLTAGE VO (V) (500mV/div) TIME, t (2ms/div) VO (V) (500mV/div) VIN (V) (5V/div) TIME, t (2ms/div) Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 8 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Characteristic Curves The following figures provide typical characteristics for the 12A Analog Pico DLynxTM at 2.5Vo and 25oC. 100 95 90 12 OUTPUT CURRENT, Io (A) 10 8 6 4 2 0 55 65 NC 0.5m/s (100LFM) Standard Part (85° C) EFFICIENCY, η (%) 85 80 75 70 65 60 0 2 4 6 8 10 12 Vin=12V Vin=4.5V Vin=14.4V 1m/s (200LFM) 1.5m/s (300LFM) 2m/s (400LFM) Ruggedized (D) Part (105° C) 75 85 95 O 105 OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 19. Converter Efficiency versus Output Current. Figure 20. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE VO (V) (20mV/div) TIME, t (1μs/div) IO (A) (10Adiv) VO (V) (20mV/div) TIME, t (20μs /div) Figure 21. Typical output ripple and noise (CO=22μF ceramic, VIN = 12V, Io = Io,max, ). Figure 22. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout1x47uF+1x330uF,CTune-3300pF & RTune-270ohms ON/OFF VOLTAGE VON/OFF (V) (5V/div) INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT VOLTAGE VO (V) (1V/div) TIME, t (2ms/div) VO (V) (1V/div) VIN (V) (5V/div) TIME, t (2ms/div) Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 9 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Characteristic Curves The following figures provide typical characteristics for the 12A Analog Pico DLynxTM at 3.3Vo and 25oC. 100 12 95 OUTPUT CURRENT, Io (A) 10 8 6 4 2 0 55 EFFICIENCY, η (%) 90 85 Vin=12V 80 75 70 0 2 4 NC 0.5m/s (100LFM) Standard Part (85° C) Vin=5V Vin=14.4 V 1m/s (200LFM) 1.5m/s (300LFM) 2m/s (400LFM) Ruggedized (D) Part (105° C) 6 8 10 12 65 75 85 95 O 105 OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 25. Converter Efficiency versus Output Current. Figure 26. Derating Output Current versus Ambient Temperature and Airflow. OUTPUT VOLTAGE OUTPUT CURRENT VO (V) (50mV/div) IO (A) (10Adiv) OUTPUT VOLTAGE VO (V) (20mV/div) TIME, t (1μs/div) TIME, t (20μs /div) Figure 27. Typical output ripple and noise (CO=22μF ceramic, VIN = 12V, Io = Io,max, ). Figure 28. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout1x47uF+1x330uF,CTune-2700pF & RTune-330ohms ON/OFF VOLTAGE VON/OFF (V) (5V/div) INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT VOLTAGE VO (V) (1V/div) TIME, t (2ms/div) VO (V) (1V/div) VIN (V) (5V/div) TIME, t (2ms/div) Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 10 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Characteristic Curves The following figures provide typical characteristics for the 12A Analog Pico DLynxTM at 5Vo and 25oC. 100 12 OUTPUT CURRENT, Io (A) 95 10 8 6 4 2 0 55 EFFICIENCY, η (%) 90 85 80 75 70 0 2 4 6 8 Vin=14.4V Vin=12V NC 0.5m/s (100LFM) 1m/s (200LFM) 1.5m/s (300LFM) Ruggedized (D) Part (105° C) Vin=7V Standard Part (85° C) 2m/s (400LFM) 10 12 OUTPUT CURRENT, IO (A) 65 75 85 95 O AMBIENT TEMPERATURE, TA C 105 Figure 31. Converter Efficiency versus Output Current. OUTPUT VOLTAGE OUTPUT CURRENT, Figure 32. Derating Output Current versus Ambient Temperature and Airflow. VO (V) (50mV/div) IO (A) (10Adiv) OUTPUT VOLTAGE VO (V) (20mV/div) TIME, t (1μs/div) TIME, t (20μs /div) Figure 33. Typical output ripple and noise (CO=22μF ceramic, VIN = 12V, Io = Io,max, ). Figure 34. Transient Response to Dynamic Load Change from 50% to 100% at 12Vin, Cout-5x47uF, CTune-1500pF & RTune-330ohms ON/OFF VOLTAGE VON/OFF (V) (5V/div) INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT VOLTAGE VO (V) (2V/div) TIME, t (2ms/div) VO (V) (1V/div) VIN (V) (5V/div) TIME, t (2ms/div) Figure 35. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). LINEAGE POWER 11 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current the module can be achieved by using the Tunable TM Loop feature described later in this data sheet 60 50 1x22uF Ext 1x47uF Ext 2x47uF Ext 4x47uF Ext Cap Cap Cap Cap Design Considerations Input Filtering The 12A Analog Pico DLynxTM 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, ceramic capacitors are recommended at the input of the module. Figure 37 shows the input ripple voltage for various output voltages at 12A of load current with 2x22 µF or 3x22 µF ceramic capacitors and an input of 12V. Ripple (mVp-p) 40 30 20 10 0 0.5 1.5 2.5 3.5 Output Voltage(Volts) 4.5 250 Input Ripple Voltage (mVp-p) 2x22uF 3x22uF 200 150 100 50 Figure 38. Output ripple voltage for various output voltages with external 1x22 µF, 1x47 µF, 2x47 µF or 4x47 µF ceramic capacitors at the output (12A load). Input voltage is 12V. 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 2nd, CSA C22.2 No. 60950-1-07, DIN EN 60950-1:2006 + A11 (VDE0805 Teil 1 + A11):2009-11; EN 60950-1:2006 + A11:200903. 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 time delay fuse with a maximum rating of 15 A in the positive input lead. 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Output Voltage (Vdc) Figure 37. Input ripple voltage for various output voltages with 2x22 µF or 3x22 µF ceramic capacitors at the input (12A load). Input voltage is 12V. Output Filtering The 12A Analog Pico DLynx modules are designed for low output ripple voltage and will meet the maximum output ripple specification with 0.1 µF ceramic and 22 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 38 provides output ripple information for different external capacitance values at various Vo and a full load current of 12A. 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 TM LINEAGE POWER 12 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Feature Descriptions Remote On/Off The 12A Analog Pico DLynx power 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 should be 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 39. When the external transistor Q1 is in the OFF state, the internal PWM Enable signal is pulled high through an internal 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 TBD TBA Figure 39. Circuit configuration for using positive On/Off logic. For negative logic On/Off modules, the circuit configuration is shown in Fig. 40. The On/Off pin should be pulled high with an external pull-up resistor (suggested value for the 3V to 14.4V input range is 20Kohms). When transistor Q1 is in the OFF state, the On/Off pin is pulled high, internal transistor Q4 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 Q4 OFF resulting in the PWM Enable pin going high and the module turning ON. VIN+ Monotonic Start-up and Shutdown The module has monotonic start-up and shutdown behavior for any combination of rated input voltage, output current and operating temperature range. TM Startup into Pre-biased Output The modules can start into a prebiased output as long as the prebias voltage is 0.5V less than the set output voltage. Output Voltage Programming The output voltage of the module is programmable to any voltage from 0.6dc 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. 41. The Upper Limit curve shows that for output voltages lower than 1V, the input voltage must be lower than the maximum of 14.4V. The Lower Limit curve shows that for output voltages higher than 0.6V, the input voltage needs to be larger than the minimum of 3V. 16 14 Input Voltage (v) 12 10 8 6 4 2 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 Lower Upper Output Voltage (V) Figure 41. Output Voltage vs. Input Voltage Set Point Area plot showing limits where the output voltage can be set for different input voltages. MODULE Rpullup VIN(+) PWM Enable I ON/OFF Q1 GND _ ON/OFF VO (+) VS+ + VON/OFF 22K 22K Q4 CSS ON/OFF TRIM Rtrim GND LOAD P VX012 NEGATIVE LOGIC FIGURE Figure 40. Circuit configuration for using negative On/Off logic. Figure 42. Circuit configuration for programming output voltage using an external resistor. LINEAGE POWER 13 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Vo Rmargin-down Without an external resistor between Trim and GND pins, the output of the module will be 0.6Vdc. To calculate the value of the trim resistor, Rtrim for a desired output voltage, should be as per the following equation: MODULE Q2 Trim Rmargin-up Rtrim   12 Rtrim =   kΩ  (Vo − 0.6 ) Rtrim is the external resistor in kΩ Vo is the desired output voltage. Table 1 provides Rtrim values required for some common output voltages. Q1 GND Table 1 VO, set (V) 0.6 0.9 1.0 1.2 1.5 1.8 2.5 3.3 5.0 Rtrim (KΩ) Open 40 30 20 13.33 10 6.316 4.444 2.727 Figure 43. Circuit Configuration for margining Output voltage. 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. Remote Sense The power module has a Remote Sense feature to minimize the effects of distribution losses by regulating the voltage at the SENSE pin. The voltage between the SENSE pin and VOUT pin should not exceed 0.5V. Overtemperature Protection To provide protection in a fault condition, the unit is equipped with a thermal shutdown circuit. The unit will shutdown if the overtemperature threshold of 120(Q1) / 130(L1)oC(typ) is exceeded at the thermal reference point Tref . Once the unit goes into thermal shutdown it will then wait to cool before attempting to restart. Voltage Margining Output voltage margining can be implemented in the module 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 output pin for margining-down. Figure 43 shows the circuit configuration for output voltage margining. The POL Programming Tool, available at www.lineagepower.com under the Downloads 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. 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. LINEAGE POWER 14 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Power Good The module provides a Power Good (PGOOD) signal that is implemented with an open-drain 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 ±10% outside the setpoint value. The PGOOD terminal can be connected through a pullup resistor (suggested value 100KΩ) to a source of 5VDC or lower. Tunable LoopTM The 12A Pico DLynxTM modules have a feature that optimizes transient response of the module called Tunable LoopTM. External capacitors are usually added to the output of the module for two reasons: to reduce output ripple and noise (see Figure 38) 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. 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 Tunable LoopTM is implemented by connecting a series R-C between the SENSE and TRIM pins of the module, as shown in Fig. 45. This R-C allows the user to externally adjust the voltage loop feedback compensation of the module. TM Dual Layout Identical dimensions and pin layout of Analog and Digital Pico DLynx modules permit migration from one to the other without needing to change the layout. To support this, 2 separate Trim Resistor locations have to be provided in the layout. For the digital modules, the resistor is connected between the TRIM pad and SGND and in the case of the analog module it is connected between TRIM and GND MODULE TRIM Rtrim1 for Digital Rtrim2 for Analog (PVX012 / PDT012) SIG_GND VOUT SENSE RTUNE GND (PIN 7) MODULE CTUNE CO Caution – Do not connect SIG_GND to GND elsewhere in the layout Figure 44. Layout to support either Analog or Digital PicoDLynx on the same pad. TRIM GND RTrim Figure. 45. 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 1000uF that might be needed for an 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 6A to 12A step change (50% of full load), with an input voltage of 12V. LINEAGE POWER 15 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current 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 RTUNE CTUNE 1x47μF 330 100pF 2x47μF 330 560pF 4x47μF 6x47μF 10x47μF 330 330 270 3900pF 20x47μF 180 6800pF 1500pF 2200pF Table 3. Recommended values of RTUNE and CTUNE to obtain transient deviation of 2% of Vout for a 6A step load with Vin=12V. Vo Co RTUNE ΔV 5V 3.3V 2.5V 1.8V 1.2V 0.6V 1x47μF 3x47μF 1x47μF 1x47μF 3x47μF + + + + + 5x47μF 330μF 330μF 2x330μF 3x330μF 6x330μF Polymer Polymer Polymer Polymer Polymer 330 330 270 270 220 180 10nF 24mV 47nF 12mV 99mV 58mV 47mV 34mV CTUNE 1500pF 2700pF 3300pF 5600pF LINEAGE POWER 16 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current 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 46. The preferred airflow direction for the module is in Figure 47. Wind Tunnel PWBs 25.4_ (1.0) Power Module Figure 47. Preferred airflow direction and location of hot-spot of the module (Tref). 76.2_ (3.0) x 12.7_ (0.50) Probe Location for measuring airflow and ambient temperature Air flow Figure 46. Thermal Test Setup. The thermal reference points, Tref used in the specifications are also shown in Figure 45. For reliable operation the temperature at Q1 should not exceed 120oC and the temperature at L1 should not exceed 130oC. 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 17 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Example Application Circuit Requirements: Vin: Vout: Iout: ΔVout: Vin, ripple 12V 1.8V 9A max., worst case load transient is from 6A to 9A 1.5% of Vout (27mV) for worst case load transient 1.5% of Vin (180mV, p-p) Vin+ VIN PGOOD + VOUT V OUT SENSE RTUNE Vout+ CI2 CI1 MODULE CTUNE + CO1 CO2 Q1 ON/OFF GND TRIM RTrim CI1 CI2 CO1 CO2 CTune RTune RTrim 2x22μF/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20) 47μF/16V bulk electrolytic 2 x 47μF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19) 1 x 330μF/6.3V Polymer (e.g. Sanyo Poscap) 3300pF ceramic capacitor (can be 1206, 0805 or 0603 size) 270 ohms SMT resistor (can be 1206, 0805 or 0603 size) 10kΩ SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%) LINEAGE POWER 18 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A 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.) PIN 1 2 3 4 FUNCTION ON/OFF VIN GND VOUT VS+ (SENSE) TRIM GND NC NC PIN 10 11 12 13 14 15 16 17 FUNCTION PGOOD NC NC NC NC NC NC NC 17 16 5 6 7 8 9 13 14 12 11 15 7 8 9 LINEAGE POWER 19 Document No: DS10-008 ver. 1.12 PDF name: PVX012A0X.pdf Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A 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.) 16 17 13 11 12 14 9 8 7 15 PIN 1 2 3 4 5 6 7 8 9 FUNCTION ON/OFF VIN GND VOUT VS+ (SENSE) TRIM GND NC NC PIN 10 11 12 13 14 15 16 17 FUNCTION PGOOD NC NC NC NC NC NC NC LINEAGE POWER 20 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current Packaging Details The 12V Analog Pico DLynxTM 12A modules are supplied in tape & reel as standard. Modules are shipped in quantities of 200 modules per reel. All Dimensions are in millimeters and (in inches). Reel Dimensions: Outside Dimensions: Inside Dimensions: Tape Width: 330.2 mm (13.00) 177.8 mm (7.00”) 24.00 mm (0.945”) LINEAGE POWER 21 Document No: DS10-008 ver. 1.12 PDF name: PVX012A0X.pdf Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current The recommended linear reflow profile using Sn/Ag/Cu solder is shown in Fig. 48. Soldering outside of the recommended profile requires testing to verify results and performance. Surface Mount Information Pick and Place The 12VAnalog Pico DLynxTM 12A 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. MSL Rating The 12VAnalog Pico DLynxTM 12A modules have a MSL rating of 1. Storage and Handling The recommended storage environment and handling procedures for moisture-sensitive surface mount packages is detailed in J-STD-033 Rev. A (Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface Mount Devices). Moisture barrier bags (MBB) with desiccant are required for MSL ratings of 2 or greater. These sealed packages should not be broken until time of use. Once the 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 Cooling Zone 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. Bottom Side / First Side Assembly This module is not recommended for assembly on the bottom side of a customer board. If such an assembly is attempted, components may fall off the module during the second reflow process. Lead Free Soldering The 12VAnalog Pico DLynxTM 12A modules are leadfree (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. Reflow Temp (°C) 200 * Min. Time Above 235°C 15 Seconds Heating Zone 1°C/Second *Time Above 217°C 60 Seconds 150 100 50 0 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). For questions regarding LGA, solder volume; please contact Lineage Power for special manufacturing process instructions. Reflow Time (Seconds) Figure 48. 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). LINEAGE POWER 22 Data Sheet August 31, 2011 12A Analog Pico DLynxTM: Non-isolated DC-DC Power Modules 3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current 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 Sequencing Comcodes PVX012A0X3-SRZ PVX012A0X3-SRDZ PVX012A0X43-SRZ 3 – 14.4Vdc 3 – 14.4Vdc 3 – 14.4Vdc 0.6 – 5.5Vdc 0.6 – 5.5Vdc 0.6 – 5.5Vdc 12A 12A 12A Negative Negative Positive No No No CC109159686 CC109168811 TBA* -Z refers to RoHS compliant parts *Please contact Lineage Power for more information Table 5. Coding Scheme Package Family Identifier P P=Pico U=Micro M=Mega G=Giga V D=Dlynx Digital V= DLynx Analog. Sequencing Output Option current X T=with EZ Sequence X=without sequencing 012A0 12A Output voltage X X= 4= programm positive able output No entry = negative On/Off logic Remote Sense 3 3= Remote Sense -SR S= Surface Mount R= Tape & Reel ROHS Compliance Z Z = ROHS6 Options -D D = 105°C operating ambient, 40G operating shock as per MIL Std 810F Asia-Pacific Headquarters Tel: +86.021.54279977*808 Europe, Middle-East and Africa Headquarters Tel: +49.89.878067-280 World Wide Headquarters Lineage Power Corporation 601 Shiloh Road, Plano, TX 75074, USA +1-888-LINEAGE(546-3243) (Outside U.S.A.: +1-972-244-WATT(9288)) www.lineagepower.com e-mail: techsupport1@lineagepower.com India Headquarters Tel: +91.80.28411633 Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents. © 2011 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved. LINEAGE POWER 23 Document No: DS10-008 ver. 1.12 PDF name: PVX012A0X.pdf