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V7PF-20A1A0 Datasheet(PDF) 3 Page - Bel Fuse Inc. |
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V7PF-20A1A0 Datasheet(HTML) 3 Page - Bel Fuse Inc. |
3 / 7 page 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 Min Typ Max Notes Efficiency (Current Source) Vo=5.0V Vo=3.3V Vo=2.5V Vo=0.9V 89% 86% 83% 65% 92% 89% 86% 69% - - - - Efficiency (Current Sink) Vo=2.5V Vo=0.9V 79% 60% 82% 63% - - Measured at Vin=12V, full load. Switching Frequency 240KHz 275KHz 310KHz Output Voltage Trim Range 0.9V - 5.0V Vo=0.9V when the Trim pin is open. MTBF 5,570,000 hours Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25 °C) Dimensions Inches (L × W × H) Millimeters (L × W × H) 1.2 x 1.1 x 0.457 30.48 x 27.94 x 11.6 V7PF-20A1A0 Dimensions Inches (L × W × H) Millimeters (L × W × H) 1.2 x 1.1 x 0.508 30.48 x 27.94 x 12.91 07PF-20A1A0 Weight - 15g - Note : All specifications are typical at 25°C unless otherwise stated. Control Specifications Parameter Min Typ Max Notes Remote On/Off Signal Low (Unit Off) -0.3V - 0.8V Signal High (Unit On) 2.4V - 13.8V Remote On/Off pin open, unit on. Power Good Power Good Delay 1 - - 8mS 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. 9 . 0 17 . 1 − = adj trim V R 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. ) 9 . 0 ( 17 . 1 ) 17 . 1 3 . 1 ( − × − − × = adj V Rs Vt Rs Rt Rtrim Module Vout GND Trim Vt Module Vout GND Trim Rt Rs |
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