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DRV8850

ACTIVE

7-V, 8-A H-bridge motor driver with LDO and current feedback

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Data sheet

DRV8850

ACTIVE
Data sheet Order now

Product details

Number of full bridges 1 Vs (min) (V) 2 Vs ABS (max) (V) 7 Peak output current (A) 9.5 RDS(ON) (HS + LS) (mΩ) 65 Sleep current (µA) 1 Control mode Independent 1/2-Bridge, PWM Control interface Hardware (GPIO) Features Current sense Amplifier, Voltage Regulator Rating Catalog Operating temperature range (°C) -40 to 85
Number of full bridges 1 Vs (min) (V) 2 Vs ABS (max) (V) 7 Peak output current (A) 9.5 RDS(ON) (HS + LS) (mΩ) 65 Sleep current (µA) 1 Control mode Independent 1/2-Bridge, PWM Control interface Hardware (GPIO) Features Current sense Amplifier, Voltage Regulator Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGY) 24 19.25 mm² 5.5 x 3.5
  • H-Bridge Motor Driver
    • Drives a DC Motor, One Winding of a Stepper Motor, or Other Loads
    • Low MOSFET On-Resistance: 65 mΩ HS + LS at 4.2V, 25°C
  • 5-A Continuous 8-A Peak-Drive Current
  • Internal Current Sensing With Current Sense Output
  • 2 to 5.5-V Operating Supply Voltage Range
  • Overvoltage and Undervoltage Lockout
  • Low-Power Sleep Mode
  • 100-mA Isolated Low-Dropout (LDO) Voltage Regulator
  • 24-Pin VQFN Package
  • H-Bridge Motor Driver
    • Drives a DC Motor, One Winding of a Stepper Motor, or Other Loads
    • Low MOSFET On-Resistance: 65 mΩ HS + LS at 4.2V, 25°C
  • 5-A Continuous 8-A Peak-Drive Current
  • Internal Current Sensing With Current Sense Output
  • 2 to 5.5-V Operating Supply Voltage Range
  • Overvoltage and Undervoltage Lockout
  • Low-Power Sleep Mode
  • 100-mA Isolated Low-Dropout (LDO) Voltage Regulator
  • 24-Pin VQFN Package

The DRV8850 device provides a motor driver plus LDO voltage regulator solution for consumer products, toys, and other low-voltage or battery-powered motion-control applications. The device has one H-bridge driver to drive a DC motor, a voice-coil actuator, one winding of a stepper motor, a solenoid, or other devices. The output driver block consists of N-channel power MOSFETs configured as an H-bridge to drive the load. An internal charge pump generates the needed gate-drive voltages.

The DRV8850 device supplies up to 5 A of continuous output current (with proper PCB heat sinking) and up to 8-A peak current. It operates on a supply voltage from 2 V to 5.5 V.

A low-dropout linear voltage regulator is integrated with the motor driver to supply power to microcontrollers or other circuits. The LDO voltage regulator can be active in device sleep mode, so that the driver may be shut down without removing power to any devices powered by the LDO voltage regulator.

Internal shutdown functions provide overcurrent, short circuit, undervoltage, overvoltage, and
overtemperature protection. In addition, the device also has built-in current sensing for accurate current measurement.

The DRV8850 device is packaged in a 24-pin VQFN
(3.5-mm × 5.5-mm) package (Eco-friendly: RoHS and no Sb/Br).

The DRV8850 device provides a motor driver plus LDO voltage regulator solution for consumer products, toys, and other low-voltage or battery-powered motion-control applications. The device has one H-bridge driver to drive a DC motor, a voice-coil actuator, one winding of a stepper motor, a solenoid, or other devices. The output driver block consists of N-channel power MOSFETs configured as an H-bridge to drive the load. An internal charge pump generates the needed gate-drive voltages.

The DRV8850 device supplies up to 5 A of continuous output current (with proper PCB heat sinking) and up to 8-A peak current. It operates on a supply voltage from 2 V to 5.5 V.

A low-dropout linear voltage regulator is integrated with the motor driver to supply power to microcontrollers or other circuits. The LDO voltage regulator can be active in device sleep mode, so that the driver may be shut down without removing power to any devices powered by the LDO voltage regulator.

Internal shutdown functions provide overcurrent, short circuit, undervoltage, overvoltage, and
overtemperature protection. In addition, the device also has built-in current sensing for accurate current measurement.

The DRV8850 device is packaged in a 24-pin VQFN
(3.5-mm × 5.5-mm) package (Eco-friendly: RoHS and no Sb/Br).
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Technical documentation

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Type Title Date
* Data sheet DRV8850 Low-Voltage H-Bridge IC With LDO Voltage Regulator datasheet (Rev. D) PDF | HTML 08 Oct 2019
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 20 Jun 2022
Application note Best Practices for Board Layout of Motor Drivers (Rev. B) PDF | HTML 14 Oct 2021

Design & development

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

Evaluation board

DRV8850EVM — DRV8850EVM - Evaluation Module for Low-Voltage H-Bridge Motor Driver with LDO Voltage Regulator

The DRV8850 device provides a motor driver plus LDO voltage regulator solution for applications requiring a high start-up torque with superior thermal performance in mind. The device has one H-bridge driver to drive a DC motor, a voice-coil actuator, one winding of a stepper motor or other types of (...)

User guide: PDF
Not available on TI.com
Reference designs

TIDA-01162 — Integrated vs. Discrete Low Voltage Motor Drive Comparison Reference Design

TIDA-01162 demonstrates the key differences between an integrated vs. discrete low-voltage motor drive solution. The discrete solution is implemented using two large external MOSFETs, while the integrated solution utilizes TI’s DRV8850 brushed DC motor driver.  Both designs are (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00602 — Electric Toothbrush Controller Reference Design

This reference design uses our low-voltage H-Bridge motor driver with an integrated low dropout (LDO) voltage regulator and an ultra-low-power microcontroller (MCU) to demonstrate a full implementation of a battery-powered electric toothbrush.
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00616 — Energy Harvesting LaunchPad BoosterPack for Brushed DC Motor Control Reference Design

The Energy Harvesting LaunchPad for Brushed DC Motor Control is designed for charging a Li-ion or Li-polymer battery with solar energy, and subsequently using a voltage regulator to provide secondary system power to a TI LaunchPad and any peripherals connected the LaunchPad. The BoosterPack is (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN (RGY) 24 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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