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1 Features

? Three-phase BLDC motor driver

– Supports 48V systems

– Supports up to 100kHz PWM frequency

– Active Demagnetization to reduce power losses

– Cycle-by-cycle current limit to limit phase

current

? 4.5V to 65V operating voltage (70V abs max)

? High output current capability: 4.5A Peak

? Low MOSFET on-state resistance

– 400mΩ RDS(ON) (HS + LS) at TA = 25°C

? Reduced switching loss with 1.1V/ns slew rate and

reverse recovery loss minimization technique

– Adjustable slew rate options

? Low audible noise and ease of motor control with

ultra-low dead time < 200ns, and propagation

delay < 100ns

? Low-power sleep mode

– 1.5μA typical at VVM = 24V, TA = 25°C

? Multiple control interface options

– 6x PWM control interface

– 3x PWM control interface

? Does not require external current sense resistors,

built-in current sensing

? Flexible device configuration options

– DRV8376S: 5MHz 16-bit SPI for device

configuration and fault status

– DRV8376H: Hardware pin-based configuration

? Supports 1.8V, 3.3V, and 5V logic inputs

? Built-in 3.3V (5%), 30mA LDO regulator

? Built-in 5V (5%), 30mA LDO regulator

? Integrated protection features

– Supply under voltage lockout (UVLO)

– Charge pump under voltage (CPUV)

– Overcurrent protection (OCP)

– Thermal warning and shutdown (OTW/OTSD)

– Fault condition indication pin (nFAULT)

– Optional fault diagnostics over SPI

2 Applications

? Brushless-DC (BLDC) Motor Modules

? HVAC motors

? Office automation machines

? Factory automation and robotics

? Wireless antenna motor

? Drones

3 Description

The DRV8376 provides a gate drive and power stage

for driving a 4.5V to 65V brushless-DC motors. The

DRV8376 integrates three 1/2-H bridges with 70V

absolute maximum capability and a very low RDS(ON)

of 400mΩ (high-side plus low-side) to enable highpower

drive capability. Current is sensed using an

integrated current sensing feature eliminating the

need for external sense resistors. Power management

features with integrated LDO generate the necessary

voltage rails for the device and can be used to power

external circuits.

DRV8376 implements a 6x or 3x PWM control

scheme which can be used to implement sensored

or sensorless field-oriented control (FOC), sinusoidal

control, or trapezoid control using an external

microcontroller. The DRV8376 is capable of driving a

PWM frequency up to 100kHz. The control scheme is

highly configurable through hardware pins or register

settings ranging from motor current limiting behavior

to fault response.

There are a large number of protection features

integrated into DRV8376, intended to protect the

device, motor, and system against fault events.