DRV8323SRTARG4.A中文资料德州仪器数据手册PDF规格书

1 Features

• Triple Half-Bridge Gate Driver

– Drives 3 High-Side and 3 Low-Side N-Channel

MOSFETs (NMOS)

• Smart Gate Drive Architecture

– Adjustable Slew Rate Control

– 10-mA to 1-A Peak Source Current

– 20-mA to 2-A Peak Sink Current

• Integrated Gate Driver Power Supplies

– Supports 100% PWM Duty Cycle

– High-Side Charge Pump

– Low-Side Linear Regulator

• 6 to 60-V Operating Voltage Range

• Optional Integrated Buck Regulator

– LMR16006X SIMPLE SWITCHER®

– 4 to 60-V Operating Voltage Range

– 0.8 to 60-V, 600-mA Output Capability

• Optional Integrated Triple Current Sense

Amplifiers (CSAs)

– Adjustable Gain (5, 10, 20, 40 V/V)

– Bidirectional or Unidirectional Support

• SPI and Hardware Interface Available

• 6x, 3x, 1x, and Independent PWM Modes

• Supports 1.8-V, 3.3-V, and 5-V Logic Inputs

• Low-Power Sleep Mode (12 μA)

• Linear Voltage Regulator, 3.3 V, 30 mA

• Compact QFN Packages and Footprints

• Efficient System Design With Power Blocks

• Integrated Protection Features

– VM Undervoltage Lockout (UVLO)

– Charge Pump Undervoltage (CPUV)

– MOSFET Overcurrent Protection (OCP)

– Gate Driver Fault (GDF)

– Thermal Warning and Shutdown (OTW/OTSD)

– Fault Condition Indicator (nFAULT)

2 Applications

• Brushless-DC (BLDC) Motor Modules and PMSM

• Fans, Pumps, and Servo Drives

• E-Bikes, E-Scooters, and E-Mobility

• Cordless Garden and Power Tools, Lawnmowers

• Cordless Vacuum Cleaners

• Drones, Robotics, and RC Toys

• Industrial and Logistics Robots

3 Description

The DRV832x family of devices is an integrated gate

driver for three-phase applications. The devices

provide three half-bridge gate drivers, each capable

of driving high-side and low-side N-channel power

MOSFETs. The DRV832x generates the correct gate

drive voltages using an integrated charge pump for

the high-side MOSFETs and a linear regulator for the

low-side MOSFETs. The Smart Gate Drive

architecture supports peak gate drive currents up to

1-A source and 2-A. The DRV832x can operate from

a single power supply and supports a wide input

supply range of 6 to 60 V for the gate driver and 4 to

60 V for the optional buck regulator.

The 6x, 3x, 1x, and independent input PWM modes

allow for simple interfacing to controller circuits. The

configuration settings for the gate driver and device

are highly configurable through the SPI or hardware

(H/W) interface. The DRV8323 and DRV8323R

devices integrate three low-side current sense

amplifiers that allow bidirectional current sensing on

all three phases of the drive stage. The DRV8320R

and DRV8323R devices integrate a 600-mA buck

regulator.

A low-power sleep mode is provided to achieve low

quiescent current draw by shutting down most of the

internal circuitry. Internal protection functions are

provided for undervoltage lockout, charge pump fault,

MOSFET overcurrent, MOSFET short circuit, gate

driver fault, and overtemperature. Fault conditions are

indicated on the nFAULT pin with details through the

device registers for SPI device variants.