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IR3556 - synchronous buck gate driver

Description

The IR3556 integrated PowIRstage® contains a synchronous buck gate driver IC which is co-packed with control and synchronous MOSFETs and a Schottky diode to further improve efficiency.

Features

  • Integrated driver, Schottky diode, control MOSFET and synchronous MOSFET.
  • 5mV / A on-chip MOSFET current sensing with temperature compensated reporting.
  • Input voltage (VIN) range of 4.5V to 15V.
  • VCC and VDRV supply of 4.5V to 7V.
  • Output voltage range from 0.25V up to 5.5V.
  • Output current capability of 50A.
  • Operation up to 1.0MHz.
  • VCC under voltage lockout (UVLO).
  • 8mV / oC temperature analog output and thermal flag pull-up to 3.3V.
  • Over temperatu.

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Full PDF Text Transcription

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50A Integrated PowIRstage® IR3556 FEATURES  Integrated driver, Schottky diode, control MOSFET and synchronous MOSFET  5mV / A on-chip MOSFET current sensing with temperature compensated reporting  Input voltage (VIN) range of 4.5V to 15V  VCC and VDRV supply of 4.5V to 7V  Output voltage range from 0.25V up to 5.5V  Output current capability of 50A  Operation up to 1.0MHz  VCC under voltage lockout (UVLO)  8mV / oC temperature analog output and thermal flag pull-up to 3.3V  Over temperature protection (OTP)  Cycle-by-cycle self-preservation over current protection (OCP)  MOSFET phase fault detection and flag  Preliminary overvoltage protection (Pre-OVP)  Compatible with 3.
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