DRV8814PWPRG4.B中文资料德州仪器数据手册PDF规格书

1 Features

1• 8 V to 45 V Operating Supply Voltage Range

• 2.5 A Maximum Drive Current at 24 V and T A =

25°C

• Dual H-Bridge Current-Control Motor Driver

– Drives Two DC Motors

– Four Level Winding Current Control

• Multiple Decay Modes

– Slow Decay

– Fast Decay

• Industry Standard Parallel Digital Control Interface

• Low Current Sleep Mode

• Built-In 3.3-V Reference Output

• Small Package and Footprint

• Protection Features

– Overcurrent Protection (OCP)

– Thermal Shutdown (TSD)

– VM Undervoltage Lockout (UVLO)

– Fault Condition Indication Pin (nFAULT)

2 Applications

• Printers

• Scanners

• Office Automation Machines

• Gaming Machines

• Factory Automation

• Robotics

3 Description

The DRV8814 provides an integrated motor driver

solution for printers, scanners, and other automated

equipment applications. The device has two H-bridge

drivers, and is intended to drive DC motors. The

output driver block for each consists of N-channel

power MOSFET’s configured as H-bridges to drive

the motor windings. The DRV8814 can supply up to 2.5-A peak or 1.75-A RMS output current (with proper

heatsinking at 24 V and 25°C) per H-bridge.

A simple parallel digital control interface is compatible

with industry-standard devices. Decay mode is

programmable to allow braking or coasting of the

motor when disabled.

Internal shutdown functions are provided for over

current protection, short circuit protection, under voltage lockout, and over temperature.

The DRV8814 is available in a 28-pin HTSSOP

package with PowerPAD™ (Eco-friendly: RoHS & no

Sb/Br).