DRV8823DCARG4.A中文资料德州仪器数据手册PDF规格书

1 Features

1• PWM Motor Driver With Four H-Bridges

– Drives Two Stepper Motors, One Stepper and

Two DC Motors, or Four DC Motors

– Up to 1.5-A Current Per Winding

– Low On-Resistance

– Programmable Maximum Winding Current

– Three-Bit Winding Current Control Allows up to

Eight Current Levels

– Selectable Slow or Mixed Decay Modes

• 8- to 32-V Operating Supply Voltage Range

• Internal Charge Pump for Gate Drive

• Built-in 3.3-V Reference

• Serial Digital Control Interface

• Fully Protected Against Undervoltage,

Overtemperature, and Overcurrent Events

• Thermally-Enhanced Surface Mount Package

2 Applications

• Printers

• Scanners

• Office Automation Machines

• Gaming Machines

• Factory Automation

• Robotics

3 Description

The DRV8823 provides an integrated motor driver

solution for printers and other office automation equipment applications.

The motor driver circuit includes four H-bridge drivers. Each of the motor driver blocks employ N-channel

power MOSFETs configured as an H-bridge to drive

the motor windings.

A simple serial interface allows control of all functions

of the motor driver with only a few digital signals. The

devices also provides a low-power sleep function.

The motor drivers provide PWM current control

capability. The current is programmable, based on an

externally supplied reference voltage and an external current sense resistor. In addition, eight current levels

(set through the serial interface) allow microstepping

with bipolar stepper motors.

Internal shutdown functions are provided for

overcurrent protection (OCP), short-circuit protection,

undervoltage lockout, and overtemperature.

The DRV8823 is packaged in a 48-pin HTSSOP

package (eco-friendly: RoHS and no Sb/Br).