DRV8873

ACTIVE

38-V, 10-A H-bridge motor driver with integrated current sensing & current sense feedback

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Product details

Parameters

Number of full bridges 1 Vs (Min) (V) 4.5 Vs (Max) (V) 37 Peak output current (A) 10 RDS(ON) (HS + LS) (mOhms) 150 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO), SPI Features Current Sense Amplifier, Integrated Current Sensing, Open-Load Detection Approx. price (US$) 1.40 | 1ku Rating Catalog open-in-new Find other Brushed DC (BDC) motor drivers

Package | Pins | Size

HTSSOP (PWP) 24 34 mm² 7.7 x 4.4 open-in-new Find other Brushed DC (BDC) motor drivers

Features

  • H-Bridge Motor Driver
    • Drives One DC Motor, One Winding of a Stepper Motor, or Solenoid Loads
  • 4.5-V to 38-V Operating Voltage Range
  • 10-A Peak Current Drive
  • Low HS + LS RDS(ON)
    • 150 mΩ at TJ = 25°C, 13.5 V
    • 250 mΩ at TJ = 150°C, 13.5 V
  • Current Mirror for Output Current Sensing
  • Configurable Control Interface
    • PH/EN
    • PWM (IN1/IN2)
    • Independent Half-Bridge Control
  • Supports 1.8-V, 3.3-V, 5-V Logic Inputs
  • SPI or Hardware Interface Options
  • Low-Power Sleep Mode (10 µA)
  • Small Package and Footprint
    • 24 HTSSOP PowerPAD™ IC Package
  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • Overcurrent Protection (OCP)
    • Output short to battery and short to ground protection
    • Open Load Detection
    • Thermal Shutdown (TSD)
    • Fault Condition Output (nFAULT / SPI)

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open-in-new Find other Brushed DC (BDC) motor drivers

Description

The DRV8873 device is an integrated driver IC for driving a brushed DC motor in industrial applications. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that drive motors bi-directionally with up to 10-A peak current. The device operates from a single power supply and supports a wide input supply range from 4.5 V to 38 V.

A PH/EN or PWM interface allows simple interfacing to controller circuits. Alternatively, independent half-bridge control is available to drive two solenoid loads.

A current mirror allows the controller to monitor the load current. This mirror approximates the current through the high-side FETs, and does not require a high-power resistor for sensing the current.

A low-power sleep mode is provided to achieve very-low quiescent current draw by shutting down much of the internal circuitry. Internal protection functions are provided for undervoltage lockout, charge pump faults, overcurrent protection, short-circuit protection, open-load detection, and overtemperature. Fault conditions are indicated on an nFAULT pin and through the SPI registers.

open-in-new Find other Brushed DC (BDC) motor drivers
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Technical documentation

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Type Title Date
* Datasheet DRV8873 H-Bridge Motor Driver datasheet Jun. 11, 2018
Technical articles Helping physicians achieve faster, more accurate patient diagnoses with molecular test technology May 20, 2020
Technical articles Motor-driven automation in smart home systems: how to achieve efficiency and cost savings Jan. 02, 2020
Technical articles Anything but discrete: How to simplify 48-V to 60-V DC-fed three-phase inverter design Feb. 01, 2019
Application notes Advantages of Integrated Current Sensing Jan. 07, 2019
Application notes Using DRV to Drive Solenoids - DRV8876/DRV8702-Q1/DRV8343-Q1 Feb. 19, 2018
Technical articles Integrated intelligence part 3: motor startup from standstill position Dec. 11, 2017

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
$75.00
Description

The DRV8873 is an integrated driver for industrial and automotive applications. With 10 A peak current capability and 4.5-38V voltage range, this device supports a wide range of applications. PH/EN or PWM interface allows simple interfacing to controller circuits while also allowing independent (...)

Features
  • Integrated current sensing
  • Multi-level current regulation
  • Open-load detection
  • 4.5V minimum operating supply
  • Charge pump architecture
EVALUATION BOARDS Download
document-generic User guide
$75.00
Description

The DRV8873 is an integrated driver for industrial and automotive applications. With 10 A peak current capability and 4.5-38V voltage range, this device supports a wide range of applications.

PH/EN or PWM interface allows simple interfacing to controller circuits while also allowing independent (...)

Features
  • Integrated current sensing
  • Multi-level current regulation
  • Open-load detection
  • 4.5V minimum operating supply
  • Charge pump architecture

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 24 View options

Ordering & quality

Support & training

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Videos

How to use integrated current sensing in brushed DC motors

Learn what current sensing is used for in brushed DC motors, how to implement a motor driver with integrated current sensing and how it works.

Posted: 05-Jan-2016
Duration: 03:29

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