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Texas Instruments DRV8847 Dual H-Bridge Motor Drivers

Texas Instruments DRV8847 Dual H-Bridge Motor Drivers are for industrial applications, home appliances, ePOS printers, and other mechatronic applications. These devices can be used for driving two DC motors, a bipolar stepper motor, or other loads such as relays. A simple PWM interface allows for an easy interface with the controller. The DRV8847 drivers operate off a single power supply and support a wide input supply range from 2.7 to 18V. The output stage of the driver consists of N-channel power MOSFETs configured as two full H-bridges to drive motor windings or four independent half bridges (in an independent bridge interface). A fixed-off time controls the peak current in the bridge, which can drive a 1A load (2A in parallel mode with proper heat sinking at 25°C TA).

Features

  • Dual H-bridge motor driver
    • Single or dual-brushed DC motors
    • One bipolar stepper motor
    • Solenoid loads
  • 2.7V to 18V operating voltage range
  • High output current per H-bridge
    • 1A RMS driver current at TA = 25°C
    • 2A RMS driver current in parallel mode at TA = 25°C
  • Low on-state resistance
    • 1000mΩ RDS(ON) (HS + LS) at TA = 25°C
  • Multiple control interface options
    • 4-pin interface
    • 2-pin interface
    • Parallel bridge interface
    • Independent bridge interface
  • Current regulation with 20μs fixed-off time
  • Torque scalar for scaling output current to 50%
  • Supports 1.8V, 3.3V, 5V logic inputs
  • Low-power sleep mode
    • 1.7μA sleep mode supply current at VVM = 12V, TA = 25°C
  • I2C device variant available (DRV8847S)
    • Detailed diagnostics on I2C registers
    • Multi-slave operation support
    • Supports standard and fast I2C mode
  • Small packages and footprints
    • 16-pin TSSOP (no thermal pad)
    • 16-pin HTSSOP PowerPAD™ package
    • 16-pin WQFN thermal package
  • Built-in protection features
    • VM undervoltage lockout
    • Overcurrent protection
    • Open load detection
    • Thermal shutdown
    • Fault condition indication pin (nFAULT)

Applications

  • Refrigerator damper and ice maker
  • Washers, dryers, and dishwashers
  • Electronic Point-of-Sale (ePOS) printers
  • Stage lighting equipment
  • Miniature circuit breakers and smart meters

Simplified Schematic

Schematic - Texas Instruments DRV8847 Dual H-Bridge Motor Drivers

Related Product

Texas Instruments DRV8411A Dual H-Bridge Motor Driver

Device can drive one or two DC brush motors, one stepper motor, solenoids, or other inductive loads.

Learn Moreo Texas Instruments DRV8411A Dual H-Bridge Motor Driver View Productspowiązany z Texas Instruments DRV8411A Dual H-Bridge Motor Driver

Related Development Tool

Texas Instruments DRV8847xEVM Driver Evaluation Modules (EVMs)

Application boards that are designed to allow easy evaluation of the DRV8847 or DRV8847S drivers.

Learn Moreo Texas Instruments DRV8847xEVM Driver Evaluation Modules (EVMs) View Productspowiązany z Texas Instruments DRV8847xEVM Driver Evaluation Modules (EVMs)
Opublikowano: 2019-02-27 | Zaktualizowano: 2025-01-22