The heating, ventilation, air-conditioning and cooling (HVAC) system is designed to adjust, heat, cool, ventilate, clean, or dehumidify the indoor air quality (IAQ) in the car. The HVAC system consists of sensors and mechanical/electronic switches at the front end, blower motors, actuators (for fresh air circulation control, airflow control, and temperature control), and refrigeration units that deliver air to the cockpit at the rear end to ensure thermal comfort for drivers and passengers.

Based on MindMotion’s MM32SPIN023C microcontroller, the HVAC FLAP takes MM32SPIN023C as its main control.

MM32 MCU Model:

MM32SPIN023C Series

MCU Specifications:

- Memory and computing resources: 32KB Flash, 4KB SRAM and maximum main frequency 60MHz
- 7 timer resources: one 16-bit advanced timer, one 32-bit general-purpose timer, three basic timers, one 12-bit IWDG and one 24-bit Systick
- Support 2-channel DMA
- Hardware Divider HW-Div
- One 12-bit analog-to-digital converter ADC, 9 channels supported and sampling rate 1Msps
- Designed for motor applications with built-in 2 comparators, 2 rail-to-rail operational amplifiers, and 6 integrated MOSFETs; capable of sustaining a continuous driving current of up to 2A
- Support UART/SPI communication
- Support 6.5-18V power supply
- Operating ambient temperature -40℃~105℃
- Provide QFN32 package type


- Highly integrated solution with LDO, PreDriver and MOSFET
- All in one
- Overvoltage and overcurrent protection
- Position speed control
- Single UART communication

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