DRV8847

ACTIVE

18-V, 2-A dual H-bridge motor driver with current regulation & independent half-bridge control

Top

Product details

Parameters

Number of full bridges 2 Vs (Min) (V) 2.7 Vs (Max) (V) 18 Full-scale current (A) 1 Peak output current (A) 2 RDS(ON) (HS + LS) (mOhms) 1000 Control mode Independent 1/2-Bridge Control interface Hardware (GPIO), I2C Features Current Regulation, Open-Load Detection Approx. price (US$) 0.65 | 1ku open-in-new Find other Stepper motor drivers

Package | Pins | Size

HTSSOP (PWP) 16 32 mm² 5 x 6.4 TSSOP (PW) 16 22 mm² 5 x 4.4 WQFN (RTE) 16 9 mm² 3 x 3 open-in-new Find other Stepper motor drivers

Features

  • Dual H-bridge motor driver
    • Single or dual brushed DC motors
    • One bipolar stepper motor
    • Solenoid loads
  • 2.7-V to 18-V operating voltage range
  • High output current per H-bridge
    • 1-A RMS driver current at TA = 25°C
    • 2-A RMS driver current in parallel mode at TA = 25°C
  • Low on-state resistance at VM > 5-V
    • 1000 mΩ 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 20-µs fixed off time
  • Torque scalar for scaling output current to 50%
  • Supports 1.8-V, 3.3-V, 5-V logic inputs
  • Low-power sleep mode
    • 1.7-µA Sleep mode supply current at VVM = 12-V, 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)

All trademarks are the property of their respective owners.

open-in-new Find other Stepper motor drivers

Description

The DRV8847 device is a dual H-bridge motor driver for industrial applications, home appliances, ePOS printers, and other mechatronic applications. This device can be used for driving two DC motors, a bipolar stepper motor, or other loads such as relays. A simple PWM interface allows easy interface with the controller. The DRV8847 device operates off a single power supply and supports a wide input supply range from 2.7 to 18 V.

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 independent bridge interface). A fixed off time controls the peak current in the bridge which can drive a 1-A load (2-A in parallel mode with proper heat sinking, at 25°C TA).

A low-power sleep mode is provided to achieve a low quiescent current draw by shutting down much of the internal circuitry. Additionally, a torque scalar is provided which dynamically scales the output current through a digital input pin. This feature lets the controller decrease the current required for lower power consumption.

Internal protection functions are provided for undervoltage-lockout, overcurrent protection on each FET, short circuit protection, open-load detection, and overtemperature. Fault conditions are indicated by on the nFAULT pin. The I2C device variant (DRV8847S) has detailed diagnostics.

open-in-new Find other Stepper motor drivers
Download

Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The DRV8847 evaluation module (EVM) is an application board design to allow easy evaluation of the DRV8847 device. The DRV8847 device is an integrated low voltage dual H-bridge driver and highly-configurable power stage for industrial brushed DC, stepper motor, and solenoid applications. This device (...)

Features
  • 2.7-V to 18-V Operating Voltage Range
  • 1A RMS Driver Current / 2A RMS Driver Current in Parallel Mode
EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The DRV8847S evaluation module (EVM) is an application board design to allow easy evaluation of the DRV8847S device. The DRV8847S device is an integrated low voltage dual H-bridge driver and highly-configurable power stage for industrial brushed DC, stepper motor, and solenoid applications. This (...)

Features
  • 2.7-V to 18-V Operating Voltage Range
  • 1A RMS Driver Current / 2A RMS Driver Current in Parallel Mode
  • I²C Communication

Software development

SUPPORT SOFTWARE Download
SLVC728.ZIP (94 KB)
SUPPORT SOFTWARE Download
SLVC729.ZIP (92382 KB)

Reference designs

REFERENCE DESIGNS Download
12-V, 15-W Power limit, single driver-based stepper, brushed DC and actuator drive reference design
TIDA-010004 — This reference design demonstrates a multi-load drive using one driver chip in multiple configurations enabling reduced inventory. The multiple loads include one bipolar stepper motor, one brushed DC motor, and three actuator or solenoid loads driven from a 12-V DC supply. The design shows less than (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 16 View options
TSSOP (PW) 16 View options
WQFN (RTE) 16 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​