DRV8376-Q1数据手册TI中文资料规格书

描述 Description

The DRV8376-Q1 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 high-power 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-Q1 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-Q1, intended to protect the device, motor, and system against fault events.

特性 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