Automotive HVAC Multiple Flap Actuator/Damper DC Motor Driver-Reference Design


Design files


The TIDA-01357 reference design offers a DC motor control solution for multiple automotive HVAC flap actuators or  dampers. This design demonstrates a cost-effective motor driver solution for six flap actuators/dampers where all six motors can be driven simultaneously with an output current up to 0.4 A per motor. This reference design maintains a small solution size and low quiescent current in addition to offering reverse battery and load dump protection.

  • Direct battery operation (12V system); survives voltages up to 45V
  • Withstands reverse battery conditions and load dump conditions (12V system)
  • Three-chip solution to drive up to six motors
  • Compact layout; does not require external FETs
  • Overcurrent, undervoltage and overtemperature protection with diagnostics feature

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUCK1.PDF (1289 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components

TIDRQ00.PDF (69 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRQ01.PDF (271 K)

Detailed overview of design layout for component placement

TIDRQ03.ZIP (722 K)

Files used for 3D models or 2D drawings of IC components

TIDCD76.ZIP (358 K)

Design file that contains information on physical board layer of design PCB

TIDRQ02.PDF (1129 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Stepper motor drivers

DRV8802-Q1Automotive, 47-V, 1.6-A, dual H-bridge motor driver with current regulation

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Automotive HVAC Multiple-Flap Actuator and Damper Motor Drivers Reference Design Dec. 15, 2016
Technical article Putting innovation in the driver's seat. What technologies are most important to modern power seats? Apr. 27, 2017
Technical article Understanding flap actuators and what drives them in automotive HVAC systems Apr. 13, 2017

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