Automotive, 40-V, 6-A, 12-channel half-bridge motor driver with advanced diagnostics


Product details


Number of full bridges 6 Vs (Min) (V) 4.5 Vs ABS (Max) (V) 40 Peak output current (A) 6 RDS(ON) (HS + LS) (mOhms) 1500 Sleep current (uA) 0.35 Control mode Independent 1/2-Bridge, PWM Control interface SPI Features Open-Load Detection Rating Automotive Operating temperature range (C) -40 to 125 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


  • AEC-Q100 qualified for automotive applications
  • 4, 6, 8, 10 and 12 half-bridge outputs
  • 4.5-V to 32-V operating voltage
    • 40-V absolute maximum voltage
  • 1-A RMS current for each output
    • 6-A maximum current for paralleled outputs
  • Low-power sleep mode (1.5-µA)
  • Supports 3.3-V and 5-V logic inputs
  • SPI for configuration and diagnostics
    • 5-MHz, 16-Bit SPI communication
    • Daisy chain functionality
  • PWM generators programmable over SPI
    • Individual half-bridge PWM operation
    • Configurable for high-side, low-side, and H-bridge load driving
    • Supports 8-bit duty cycle resolution
  • Integrated protection features with per channel detailed diagnostics over SPI
    • nFAULT pin output
    • VM undervoltage lockout (UVLO)
    • VM overvoltage protection (OVP)
    • Logic supply power on reset (POR)
    • Overcurrent protection (OCP)
    • Enhanced open load detection (OLD)
    • Thermal warning and shutdown (OTW/OTSD)
open-in-new Find other Brushed DC (BDC) motor drivers


The DRV89xx-Q1 is a pin-to-pin compatible family of integrated multi-channel half-bridge drivers with 4 to 12 half-bridges. The device family features low on-state resistance (RDS(ON)) for improved thermal performance during high-current operation.

These devices can drive brushed-DC (BDC) motors or stepper motors in independent, sequential, or parallel mode. The half-bridges are fully controllable to achieve a forward, reverse, coasting and braking operation of motor.

These devices feature standard 16-bit, 5-MHz serial peripheral interface (SPI) with daisy chain capability for complete configuration and detailed diagnostics. Depending on the device, four or eight programmable PWM generators are integrated to allow for current limiting during motor operation or LED dimming control.

The device includes numerous protection and diagnostic features including an nFAULT pin to alert the system when a fault occurs. The device features a low-current open load detection (OLD) mode to detect open-load conditions when the nominal load current is small and a passive OLD mode for offline OLD. The device is also fully-protected from short-circuit, undervoltage, and over-temperature conditions.

View our full portfolio of brushed motor drivers on ti.com.

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Technical documentation

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Type Title Date
* Data sheet DRV89xx-Q1 Automotive Multi-Channel Half-Bridge Drivers with Advanced Diagnostics datasheet (Rev. C) Feb. 11, 2020
Application note Daisy Chain Implementation for Serial Peripheral Interface (Rev. A) Apr. 07, 2021
Technical article Body control module resources to make your design more efficient and reliable Oct. 30, 2020
Application note Using the Half-Bridge DRV89xx-Q1 as High-Side or Low-Side Switch Oct. 26, 2020
Technical article Driving HVAC system flaps with an integrated, multichannel motor driver Feb. 17, 2020
Application note Open Load Detection in Intergrated Drivers (Rev. A) Nov. 07, 2019
Application note Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) Feb. 19, 2019
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) Jul. 06, 2018
Technical article Why are you still driving automotive motors with relays? Jul. 13, 2017
Technical article Understanding flap actuators and what drives them in automotive HVAC systems Apr. 13, 2017
Application note PowerPAD™ Made Easy (Rev. B) May 12, 2004

Design & development

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

Hardware development

document-generic User guide

The DRV8912-Q1 evaluation module (EVM) is an application board design to allow easy evaluation of the DRV8912-Q1 device. The DRV8912-Q1 device is an integrated 4.5-V to 32-V 12 channel H-bridges for automotive applications such as control of heating, ventilation, and airconditioning (HVAC) flap DC (...)

  • 4.5-V to 32-V operating voltage range
  • 1A DC maximum current for each channel / total 3A DC maximum current
  • Drive the brushed-DC (BDC) motors in independent, sequential, or parallel mode
  • The BDC and stepper motor is fully controllable with forward, reverse, coasting and braking mode support
  • 16-bit serial (...)

Reference designs

Automotive HVAC control reference design with HMI
TIDA-020010 — This reference design offers a cost-effective solution for a heating, ventilation, and air conditioning (HVAC) human-machine interface (HMI) application. This reference design incorporates a synchronous step-down converter, multiple channel half-bridge motor driver for brushed DC motors (BDC (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 24 View options

Ordering & quality

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