DRV8842PWPRG4.B中文资料德州仪器数据手册PDF规格书

1 Features

1• Single H-Bridge Current-Control Motor Driver

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

• Five-Bit Winding Current Control Allows Up to 32

Current Levels

• Low MOSFET RDS(on) Typical 0.2 Ω (HS + LS)

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

• Built-In 3.3-V Reference Output

• Industry-Standard PWM Control Interface

• Thermally 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 DRV8842 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, one

coil of a stepper motor, or other loads. The output

driver block consists of N-channel power MOSFETs

configured as an H-bridge. The DRV8842 can supply

up to 5-A peak or 3.5-A RMS output current (with

proper heatsinking at 24 V and 25°C).

Separate inputs to independently control each half of

the H-bridge are provided.

Internal shutdown functions are provided for

overcurrent protection, short-circuit protection,

undervoltage lockout, and overtemperature.

TheDRV8842 is available in a 28-pin HTSSOP

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

Sb/Br).