1 Features
1• Dual H-Bridge Motor Driver
– Single/Dual Brushed DC
– Stepper
• IN/IN Control Interface
• Optional Fixed Frequency Current Regulation
– Two Bit Current control Allows Up to Four
Current Levels
• Low MOSFET On-Resistance
– 2.5-A Maximum Drive Current at 24 V
and TA = 25°C
– Combined 400 mΩ RDS(ON) of High-Side and
Low-Side at 24 V and TA = 25°C
• 8.2-V to 45-V Operating Supply Voltage Range
• Low Current Sleep Mode
• Built-In 3.3-V Reference Output
• Thermally Enhanced Surface Mount Package
• Protection Features
– Overcurrent Protection (OCP)
– Thermal Shutdown (TSD)
– Undervoltage Lockout (UVLO)
– Fault Condition Indication Pin (nFAULT)

2 Applications
• Printers
• Scanners
• Office Automation Machines
• Gaming Machines
• Factory Automation
• Robotics

3 Description
The DRV8843 provides an integrated dual H-bridge
motor driver solution for printers, scanners, and other automated equipment applications. The device can
be used to drive one or two brushed DC motors, a
bipolar stepper motor, or other loads. A simple PWM
interface allows easy interfacing to controller circuits.
The output driver block consists of N-channel power
MOSFETs configured as H-bridges. The DRV8843 an
supply up to 2.5-A peak or 1.75-A RMS output
current (with proper heat sinking at 24 V and
TA = 25°C) per H-bridge.
A low-power sleep mode is provided which shuts
down internal circuitry to achieve very low quiescent
current draw. This sleep mode can be set using a
dedicated nSLEEP pin.
Internal protection features are provided for
overtemperature, overcurrent, and undervoltage.
Fault conditions are indicated by a nFAULT pin.