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DRV8301

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SLOS719F – AUGUST 2011 – REVISED JANUARY 2016

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7 Detailed Description

7.1 Overview

The DRV8301 is a 6-V to 60-V gate driver IC for three-phase motor drive applications. This device reduces

external component count by integrating three half-bridge drivers, two current shunt amplifiers, and a switching

buck converter. The DRV8301 provides overcurrent, overtemperature, and undervoltage protection. Fault

conditions are indicated through the nFAULT and nOCTW pins in addition to the SPI registers.

Adjustable dead time control and peak gate drive current allows for finely tuning the switching of the external

MOSFETs. Internal hand-shaking is used to prevent flow of current.

VDS sensing of the external MOSFETs allows for the DRV8301 to detect overcurrent conditions and respond

appropriately. Individual MOSFET overcurrent conditions are reported through the SPI status registers.

The highly configurable buck converter can support a wide range of output options. This allows the DRV8301 to

provide a power supply rail for the controller and lower voltage components.