Automotive HVAC control reference design with HMI
TIDA-020010
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- Automotive HVAC control reference design with HMI
(PDF 5832 KB)
01 Feb 2019
Description
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), multiple channel light-emitting diode (LED) driver, which sets LED light intensity according to the ambient light intensity, that is measured by the ambient light sensor, The high-side switch on this reference design drives various loads, multiple hall-sensors are used for contactless measurement of the rotary knobs, tracking voltage regulator supplies off board sensors and multiplexer is used to multiplex multiple analog sensor outputs to the microcontrollers analog to digital converter (ADC).
Features
- Withstands reverse battery protection
- Drives up to 6 BDC motors
- Automatic LED dimming based on ambient light intensity
- Contactless rotation detection for the rotary knobs
- Fully protected high-side power switch with accurate current sense
See the Important Notice and Disclaimer covering reference designs and other TI resources.
