Automotive HVAC control module

Products and reference designs

Automotive HVAC control module

Block diagram


Our integrated circuits and reference designs for automotive heating, ventilation and air conditioning (HVAC) control modules help accelerate your design through intelligent drive capabilities with enhanced diagnostics and robust sensors for feedback in closed-loop systems as well as performance motor drivers, efficient power supplies and LED drivers.

Design requirements

Automotive HVAC control module designs require:

  • Reduced EMI to optimize system performance.
  • Scalable power and communication interfaces.
  • Fast temperature control by driving of multiple flap actuators in minimal board size.
  • High accuracy to achieve optimal in-cabin temperature, humidity and air quality.
  • Comprehensive diagnostics for fault identification.
  • Minimal drivers to support multiple LEDs with individual dimming and diagnostics.

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Block diagram

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Technical documentation

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Type Title Date
Technical article Understanding flap actuators and what drives them in automotive HVAC systems PDF | HTML 30 Aug 2023
White paper How to design heating and cooling systems for HEV/EVs (Rev. A) 21 Jun 2023
White paper HEV/EV용 난방 및 냉방 시스템 설계 방법 (Rev. A) PDF | HTML 11 Jul 2023
White paper Evolution vs. revolution: the building blocks of automotive body electronics 11 Apr 2018
White paper 車體控制模組的系統電源架構 02 Apr 2019
Technical article Driving HVAC system flaps with an integrated, multichannel motor driver PDF | HTML 01 Mar 2024

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