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RK73H1JLTD8661F Datasheet(PDF) 4 Page - International Rectifier |
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RK73H1JLTD8661F Datasheet(HTML) 4 Page - International Rectifier |
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4 / 22 page  IR3865MPBF 4 8/8/2012 Rev3.1 Pin Description NAME NUMBER I/O LEVEL DESCRIPTION FCCM 1 3.3V Forced Continuous Conduction Mode (CCM). Ground this pin to enable diode emulation mode or discontinuous conduction mode (DCM). Pull this pin to 3.3V to operate in CCM under all load conditions. ISET 2 Connecting resistor to PHASE pin sets over current trip point. PGOOD 3 5V Power good open drain output – pull up with a resistor to 3.3V GND 4,17 Reference Bias return and signal reference. FB 5 3.3V Inverting input to PWM comparator, OVP / PGOOD sense. SS 6 3.3V Soft start/shutdown. This pin provides user programmable soft- start function. Connect an external capacitor from this pin to GND to set the startup time of the output voltage. The converter can be shutdown by pulling this pin below 0.3V. NC 7 - - 3VCBP 8 3.3V For internal LDO. Bypass with a 1.0µF capacitor to AGND. A resistor in series with the bypass capacitor may be required in single-ground plane designs. Refer to Layout Recommendation for details. NC 9 - - VCC 10 5V VCC input. Gate drive supply. A minimum of 1.0µF ceramic capacitor is required. PGND 11 Reference Power return. PHASE 12 VIN Phase node (or switching node) of MOSFET half bridge. VIN 13 VIN Input voltage for the system. BOOT 14 VIN +VCC Bootstrapped gate drive supply – connect a capacitor to PHASE. FF 15 VIN Input voltage feed forward – sets on-time with a resistor to VIN. EN 16 5V Enable pin to turn on and off the device. Use two external resistors to set the turn on threshold (see Electrical Specifications) for input voltage monitoring. |
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Similar Description - RK73H1JLTD8661F |
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