DRV8303DCARG4.A中文资料德州仪器数据手册PDF规格书

1 Features

1• 6-V to 60-V Operating Supply Voltage Range

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

Capability

• Slew Rate Control for EMI Reduction

• 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

• Serial Peripheral Interface (SPI)

• 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, nOCTW, and SPI

Registers

2 Applications

• 3-Phase BLDC and PMSM Motors

• CPAP and Pump

• E-Bikes

• Power Tools

• Robotics and RC Toys

• Industrial Automation

3 Description

The DRV8303 is a gate driver IC for three-phase

motor-drive applications. The device provides three

half bridge drivers, each capable of driving two Nchannel

MOSFETs. The device supports up to 1.7-A

source and 2.3-A peak current capability. The

DRV8303 can operate off of a single power supply

with a wide range from 6-V to 60-V. It uses a

bootstrap gate-driver architecture with trickle charge

circuitry to support 100% duty cycle. The DRV8303

uses automatic hand shaking when the high-side or

low-side MOSFET is switching to prevent current

shoot through. Integrated VDS sensing of the highside

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 serial peripheral interface (SPI) provides detailed

fault reporting and flexible parameter settings such as

gain options for the current-shunt amplifiers and slewrate

control of the gate drivers.