NON-ISOLATED DC/DC CONVERTERS 12V Input 0.9V-5.0V/20A Output x7PF-20A1A0 • Non-Isolated • Wide Trim Range • Fixed Frequency (275KHz) • • High Efficiency Converter Can Sink and Source Current • High Power Density • OCP/SCP • Power Good Output Signal (open collector) • Remote On/Off • Low Cost • Under-Voltage Lockout (UVLO) Description The Bel x7PF-20A1A0 is a new high density open frame non-isolated converter series for space sensitive applications. Each model has a wide input range (10.2V-13.8V) and offers a wide range of output voltage (0.9V - 5.0V) with a 20A load. An external resistor adjusts the output voltage from its pre-set value of 0.9V to any value up to the 5.0V maximum. Typical efficiency is 92% at Vo=5V, Vin=12V at full load. Typical features include remote on/off, under-voltage lockout, over-current protection and short circuit protection. Part Selection Output Voltage 0.9V – 5.0V Input Voltage 12V Max. Output Current 20A Max. Output Power 100W Typical Efficiency 92% Model Number Vertical Mount V7PF-20A1A0 Model Number Horizontal Mount 07PF-20A1A0 Note: Add “G” suffix at the end of the model number to indicate Tray Packaging. Absolute Maximum Ratings Parameter Input Voltage (continuous) Min -0.3V Typ - Max 13.8V Output Enable Terminal Voltage -0.3V - 13.8V Ambient Temperature 0°C - 80°C Storage Temperature -40°C - 125°C Notes Input Specifications Parameter Min 10.2V Typ - Max 13.8V Vo=5.0V Vo=2.5V Vo=0.9V - 9.1A 4.9A 2.2A - Vo=2.5V Vo=0.9V - -3.44A -0.97 A - Input Current (No Load) - 95mA - Remote Off Input Current - 5mA 10mA Input Voltage Input Current (Source) Input Current (Sink) Notes Able to sink 20A output current at any output voltage up to and including 2.5V. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 12V Input 0.9V-5.0V/20A Output Input Specifications (continued) Parameter Input Reflected Ripple Current (pk-pk) Vo=5.0V Vo=3.3V Vo=2.5V Vo=0.9V Input Reflected Ripple Current (RMS) Vo=5.0V Vo=3.3V Vo=2.5V Vo=0.9V External Input Capacitance Turn-on Voltage Threshold Turn-off Voltage Threshold Min Typ Max - 280mA 250mA 200mA 150mA 350mA 320mA 280mA 250mA 80mA 70mA 45mA 40mA 540uF 9.0V 7.6V 120mA 100mA 80mA 60mA 9.5V 8.3V 8.5V 7.0V Notes Tested with simulated source impedance of 1.5uH 5Hz to 20MHz, and 2 × 270uF/16V Oscon capacitors (ESR ≤ 20 mΩ) at the input Note: All specifications are typical at 25°C unless otherwise stated. Output Specifications Parameter Output Voltage Set Point Min -2.5%Vo,set Typ - Max 2.5%Vo,set Output Voltage Set Point -3.5%Vo,set - 3.5%Vo,set - - 0.4%Vo,set 0.4%Vo,set 0.5%Vo,set 1%Vo,set - - 0.5%Vo,set - 65mV 60mV 55mV 45mV 80mV 75mV 70mV 55mV 0A 25A - 18mV 15mV 15mV 10mV 5mS 0%Vo 25mV 25mV 20mV 15mV 20A 40A 0.1A2s 10mS 3%Vo 680uF 680uF 680uF - 5080uF 7840uF 11000uF Notes Vin=12V, lo=lomax, full load Over all operating input voltage, resistive load, and temperature conditions Load Regulation Vo=5.0V Vo=3.3V Vo=2.5V Vo=0.9V Line Regulation Output Ripple and Noise (pk-pk) Vo=5.0V Vo=3.3V Vo=2.5V Vo=0.9V Output Ripple and Noise (RMS) Vo=5.0V Vo=3.3V Vo=2.5V Vo=0.9V Output Current Current Limit Threshold Short Circuit Surge Transient Turn on Time Overshoot at Turn on Output Capacitance Vo=5.0V Vo=2.5V Vo=0.9V Transient Response 50% ~ 75% Max Load Settling Time VO=0.9V5.0V 75% ~ 50% Max Load Settling Time - 100mV 40uS 100mV 40uS 150mV 80uS 150mV 80uS Io=Iomin to Iomax Vin=Vinmin to Vinmax Tested at 0-20MHz BW, with a 680uF/6.3V Oscon capacitor (ESR ≤ 12 mΩ), 10uF/16V Tantalum capacitor, and 10nF ceramic capacitor at the output. Test conditions: di/dt=2.5A/uS; Vin=12V; with a 680uF/6.3V Oscon capacitor (ESR ≤ 12mΩ),10uF/16V Tantalum capacitor, and 10nF ceramic capacitor at the output. Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 12V Input 0.9V-5.0V/20A Output General Specifications Parameter Efficiency (Current Source) Vo=5.0V Vo=3.3V Vo=2.5V Vo=0.9V Efficiency (Current Sink) Vo=2.5V Vo=0.9V Switching Frequency Output Voltage Trim Range Min Typ Max 89% 86% 83% 65% 92% 89% 86% 69% - 79% 60% 240KHz 0.9V 82% 63% 275KHz - 310KHz 5.0V MTBF 5,570,000 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight - Notes Measured at Vin=12V, full load. Vo=0.9V when the Trim pin is open. Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25°C) 1.2 x 1.1 x 0.457 30.48 x 27.94 x 11.6 V7PF-20A1A0 1.2 x 1.1 x 0.508 30.48 x 27.94 x 12.91 15g 07PF-20A1A0 - Note: All specifications are typical at 25°C unless otherwise stated. Control Specifications Parameter Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Power Good Power Good Delay Min Typ Max -0.3V 2.4V - 0.8V 13.8V - - 8mS 1 Notes Remote On/Off pin open, unit on. Note: All specifications are typical at 25°C unless otherwise stated. 1. the power good signal is an open collector output. When the output of the module reaches 90% of the nominal set point, the power good pin is set high. Output Trim Equations Equation for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. Trim values should not be less than 280Ω. Rtrim = 1.17 Vadj − 0.9 Vout Module Trim Rtrim GND Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The Trim Up voltage should be connected between the Trim pin and Ground. Vout Rs × (1.3Vt − 1.17 ) Rt = 1.17 − Rs × (Vadj − 0.9 ) Module Rt Trim Rs GND Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com Vt NON-ISOLATED DC/DC CONVERTERS 12V Input 0.9V-5.0V/20A Output Efficiency Data 5.0V Vout(SOURCE) Efficiency 93.0% 90.0% 10.2V 12.0V 13.8V 87.0% 84.0% 81.0% 78.0% 2.0 5.0 10.0 15.0 20.0 Output Current (A) 2.5V Vout(SOURCE) 91.0% Efficiency 88.0% 85.0% 10.2V 12.0V 13.8V 82.0% 79.0% 76.0% 73.0% 2.0 5.0 10.0 Output Current (A) 15.0 20.0 0.9V Vout(SOURCE) 85.0% 80.0% Efficiency 75.0% 70.0% 65.0% 10.2V 12.0V 13.8V 60.0% 55.0% 50.0% 2.0 5.0 10.0 Output Current (A) 15.0 20.0 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 12V Input 0.9V-5.0V/20A Output Thermal Derating Curves Vo=5V; Vin=12V Vo=2.5V; Vin=12V Vo=0.9V; Vin=12V Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 12V Input 0.9V-5.0V/20A Output V7PF-20A1A0 Pin Connections Pin 1 2 3 4 5 6 7 8 9 10 11 Function Vout Vout Vout Trim Remote On/Off Power Good Ground Ground Reserved Vin Vin Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 12V Input 0.9V-5.0V/20A Output 07PF-20A1A0 Pin Connections Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 Function Vout Vout Vout Trim Remote On/Off Power Good Ground Ground Pwrgd_set Vin Vin Support Pin Support Pin 2005 Bel Fuse Inc. Specifications subject to change without notice. 020405 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com Bel Fuse Ltd. 8F/ 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com