8 Detailed Description

8.1 Overview

The DRV8300 family of devices is a gate driver for three-phase motor drive applications. These devices

decrease system component count, saves PCB space and cost by integrating three independent half-bridge

gate drivers and optional bootstrap diodes.

DRV8300D device integrates bootstrap diode used along with boot capacitor to generate voltage to drive high

side N-channel MOSFET. External bootstrap diode along with capacitor is needed for DRV8300N devices.

The gate drivers support external N-channel high-side and low-side power MOSFETs and can drive 750-mA

source, 1.5-A sink peak currents with total 30-mA average output current combined high and low side drivers. A

bootstrap capacitor and GVDD supply generates the voltage of the high-side gate drive. The GVDD supply

voltage is used to generate voltage for the low-side gate driver.

The DRV8300 family of devices are available in 0.5-mm pitch QFN and 0.65-mm pitch TSSOP surface-mount

packages. The QFN size is 4 × 4 mm (0.5-mm pin pitch) for the 24-pin package, and TSSOP size is 6.5 × 6.4

mm (0.65-mm pin pitch) for the 20-pin package.

DRV8300

SLVSFG5 – SEPTEMBER 2020

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