DRV8850

ACTIVE

5.5-V 8-A H-bridge motor driver with ldo and current feedback

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Product details

Parameters

Number of full bridges 1 Vs (Min) (V) 2 Vs (Max) (V) 5.5 Peak output current (A) 9.5 RDS(ON) (HS + LS) (mOhms) 65 Control mode Independent 1/2-Bridge, PWM Control interface Hardware (GPIO) Features Current Sense Amplifier, Voltage Regulator Approx. price (US$) 0.68 | 1ku Rating Catalog open-in-new Find other Brushed DC (BDC) motor drivers

Package | Pins | Size

VQFN (RGY) 24 19 mm² 5.5 x 3.5 open-in-new Find other Brushed DC (BDC) motor drivers

Features

  • 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

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Description

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

= Featured
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet DRV8850 Low-Voltage H-Bridge IC With LDO Voltage Regulator datasheet (Rev. D) Oct. 08, 2019
Technical articles Anything but discrete: How to simplify 48-V to 60-V DC-fed three-phase inverter design Feb. 01, 2019
Application notes Best Practices for Board Layout of Motor Drivers (Rev. A) Jan. 22, 2019
Technical articles Integrated intelligence part 3: motor startup from standstill position Dec. 11, 2017
Technical articles Integrated intelligence part 2: motor startup open loop acceleration Dec. 04, 2017
Technical articles Six weird ways to design with a brushless-DC driver Aug. 28, 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
$29.00
Description

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 (...)

Features
  • DRV8850 5A continuous/8A peak current supply
  • MSP430 MCU onboard

Reference designs

REFERENCE DESIGNS Download
Integrated vs. Discrete Low Voltage Motor Drive Comparison Reference Design
TIDA-01162 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Electric Toothbrush Controller Reference Design
TIDA-00602 This TI Design uses Texas Instruments’ low-voltage H-Bridge motor driver with an integrated LDO voltage regulator and an ultra-low-power microcontroller (MCU) to demonstrate a full implementation of a battery powered electric toothbrush.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Energy Harvesting LaunchPad BoosterPack for Brushed DC Motor Control Reference Design
TIDA-00616 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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
VQFN (RGY) 24 View options

Ordering & quality

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