1 Features

• Quad 1/2-H-Bridge DC Motor Driver
  • Can Drive Four Solenoids, Two DC Motors, One Stepper Motor, or Other Loads
  • Full Individual Half Bridge Control
  • Low MOSFET On-Resistance
• 2.5-A Maximum Drive Current at 24 V, 25°C
• Floating Input Buffers Allow Dual (Bipolar) Supplies (up to ±30 V)
• Built-In 3.3-V, 10-mA LDO Regulator
• Industry Standard IN/IN Digital Control Interface
• 8-V to 60-V Operating Supply Voltage Range
• Outputs Can Be Connected in Parallel
• Thermally Enhanced Surface Mount Package

2 Applications

• Textile Machines
• Office Automation Machines
• Gaming Machines
• Factory Automation
• Robotics

3 Description

The DRV8844 provides four individually controllable 1/2-H-bridge drivers. It can be used to drive two DC motors, one stepper motor, four solenoids, or other loads. The output driver channel for each channel consists of N-channel power MOSFET’s configured in a 1/2-H-bridge configuration.

The DRV8844 can supply up to 2.5-A peak or 1.75-A RMS output current per channel (with proper PCB heatsinking at 24 V and 25°C) per H-bridge.

Separate inputs to independently control each 1/2-H-bridge are provided. To allow operation with split supplies, the logic inputs and nFAULT output are referenced to a separate floating ground pin.

Internal shutdown functions are provided for over current protection, short circuit protection, undervoltage lockout, and overtemperature.

The DRV8844 is available in a 28-pin HTSSOP package with PowerPAD™ (Eco-friendly: RoHS & no Sb/Br).

1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic