DRV8302DCAR.B中文资料德州仪器数据手册PDF规格书

1 Features

1• 8-V to 60-V Operating Supply Voltage Range

• 1.7-A Source and 2.3-A Sink Gate Drive Current

Capability

• Bootstrap Gate Driver With 100% Duty Cycle

Support

• 6 or 3 PWM Input Modes

• Dual Integrated Current Shunt Amplifiers With

Adjustable Gain and Offset

• 3.3-V and 5-V Interface Support

• Hardware Control Interface

• Protection Features:

– Programmable Dead Time Control (DTC)

– Programmable Overcurrent Protection (OCP)

– PVDD and GVDD Undervoltage Lockout

(UVLO)

– GVDD Overvoltage Lockout (OVLO)

– Overtemperature Warning/Shutdown

(OTW/OTS)

– Reported through nFAULT and nOCTW pins

2 Applications

• 3-Phase BLDC and PMSM Motors

• CPAP and Pumps

• E-Bikes

• Power Tools

• Robotics and RC Toys

• Industrial Automation

3 Description

The DRV8302 is a gate driver IC for three phase

motor drive applications. It provides three half bridge

drivers, each capable of driving two N-channel

MOSFETs. The device supports up to 1.7-A source

and 2.3-A peak current capability. The DRV8302 can

operate off of a single power supply with a wide

range from 8-V to 60-V. It uses a bootstrap gate

driver architecture with trickle charge circuitry to

support 100% duty cycle. The DRV8302 uses

automatic hand shaking when the high side or low

side MOSFET is switching to prevent current shoot

through. Integrated VDS sensing of the high and low

side MOSFETs is used to protect the external power

stage against overcurrent conditions.

The DRV8303 includes two current shunt amplifiers

for accurate current measurement. The amplifiers

support bi-directional current sensing and provide and

adjustable output offset up to 3 V.

The DRV8302 also includes an integrated switching

mode buck converter with adjustable output and

switching frequency. The buck converter can provide

up to 1.5 A to support MCU or additional system

power needs.

A hardware interface allows for configuring various

device parameters including dead time, overcurrent,

PWM mode, and amplifier settings. Error conditions

are reported through the nFAULT and nOCTW pins.