SLVSI22 August   2025 DRV8844A

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Output Stage
      2. 6.3.2 Logic Inputs
      3. 6.3.3 Bridge Control
      4. 6.3.4 Charge Pump
      5. 6.3.5 Protection Circuits
        1. 6.3.5.1 Overcurrent Protection (OCP)
        2. 6.3.5.2 Thermal Shutdown (TSD)
        3. 6.3.5.3 Undervoltage Lockout (UVLO)
      6. 6.3.6 CLR_FAULT and nSLEEP Operation
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Application Information
      1. 7.2.1 Driving Solenoid Loads
      2. 7.2.2 Driving Stepper Motor
      3. 7.2.3 Driving Brushed DC motor
    3. 7.3 Power Supply Recommendations
      1. 7.3.1 Bulk Capacitance
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
      3. 7.4.3 Thermal Considerations
        1. 7.4.3.1 Heatsinking
      4. 7.4.4 Power Dissipation
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Community Resources
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The DRV8844A is a four-channel, individually controllable half-bridge driver for a wide range of applications. The device supports up to 2.5A peak or 1.75A RMS output current at 24V and 25°C with proper PCB heatsinking. The output stage of the device consists of N-channel power MOSFETs configured as four independent half-bridges, allowing the device to be used for driving two DC motors, one stepper motor, four solenoids, or other loads. Each output can be a LS switch (low-side switch), HS switch (high-side switch), or a push-pull output driver.

Separate inputs to independently control each 1/2-H-bridge are provided. To allow operation with split (positive and negative) power supplies, the logic inputs and nFAULT output are referenced to a separate floating ground pin. Additionally, the DRV8844A supports the connection of sense resistors on each individual half-bridge, allowing for current sensing at the system level for applications such as motor control.

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

Device Information(1)
PART NUMBERPACKAGEBODY SIZE (NOM)
DRV8844A

HVSSOP (28)(DGQ)

7.30mm x 4.90mm

(1) For all available packages, see the orderable addendum at the end of the data sheet.
DRV8844A Simplified Schematic Simplified Schematic