Hello, I' searching a chipset to control the fans by I2C bus. Chipset will supply power mosfet to generate PWM voltage to fans and regulate the speed to mantain the range of temperature on my mainboard.
The master of I2C bus is a STM32F205 Cortex-M3 microcontroller that monitor the temperature on board and control the fans speed by I2C chipset.

What are the chipset available for this with 12V fans 0,3mA x 2 pcs

Thank you

Maurizio

Hello Maurizio,

Rohm semiconductor has a very wide line-up of motor drivers & controllers (DC brushless, H-bridge, Stepper...). You should try to contact Rohm.

For example, DC brushless motor drivers and controller for cooling fan: http://www.rohm.com/products/lsi/motor/cooling_fan/driver/

Or H-Bridge PWM motor driver (ex. 2chx0.5A 15V): http://www.rohm.com/products/lsi/motor/h_bridge/sel2/#lineup

And more products on their website.

Ulrich