DRV8323HRTAR

1 Features

1• Triple Half-Bridge Gate Driver

– Drives High-Side and Low-Side

N-Channel MOSFETs

– Supports 100% PWM Duty Cycle

• 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

– 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

Shunt Amplifiers

– Adjustable Gain (5, 10, 20, 40 V/V)

– Bidirectional or Unidirectional Support

• Selectable SPI or Hardware Interface

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

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

• Low-Power Sleep Mode (20-µA)

• Linear Voltage Regulator, 3.3 V, 30 mA

• Compact QFN Packages and Footprints

• Efficient System Design With CSD88599Q5DC

• 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

• BLDC Motor Modules

• CPAPs, Fans, and Pumps

• E-Bikes

• Power Tools and Lawn Appliances

• Drones, Robotics, and RC Toys

• ATM and Currency Counting

3 Description

The DRV832x family of devices are integrated gate

drivers for three-phase applications. The devices

provides three half-bridge gate drivers, each capable

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

MOSFETs. The DRV832x generates the proper 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 up to 1-A source and 2-A sink peak gate

drive current capability. 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. Gate

drive and device configuration settings are highly

configurable through a SPI or hardware (H/W)

interface. The DRV8323 and DRV8323R devices

have three, integrated low-side shunt 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.

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