DRV8840PWPRG4中文资料德州仪器数据手册PDF规格书

1 Features

• Single H-Bridge Current-Control Motor Driver

• 8.2-V to 45-V Operating Supply Voltage Range

• Five Bit Current Control Allows up to 32 Current

Levels

• Low MOSFET RDS(on) Typical 0.4 Ω (HS + LS)

• 5-A Maximum Drive Current at 24 V, TA = 25°C

• Built-In 3.3-V Reference Output

• Parallel Digital Control Interface

• Thermal Enhanced Surface Mount Package

• 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 DRV8840 provides an integrated motor driver

solution for printers, scanners, and other automated

equipment applications. The device has one H-bridge

driver, and is intended to drive one DC motor. The

output driver block for each consists of N-channel

power MOSFETs configured as full H-bridges to drive

the motor windings. The DRV8840 can supply up

to 5-A peak or 3.5-A output current (with proper

heatsinking at 24 V and 25°C).

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

overcurrent protection, short-circuit protection,

undervoltage lockout, and overtemperature.

The DRV8840 is available in a 28-pin HTSSOP

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

Sb/Br).