General Description

The F75363 is a temperature sensor IC with PWM duty cycle output which is specific designed for graphic cards etc. An 11 bit analog to digital converter (ADC) was built inside F75363. The F75363 can monitor temperature and fan speed which is important for the system to work stably and properly. This chip provides 1 remot e temperature sensor and 1 local temperature sensor . The remote temperature sensor can be performed by CPU /GPU ther mal diode or transistor 2N3906 . T he users can set up the upper and lower limits (alarm thresholds) of all monitored parameters and th is chip can also issue warning messages for system protection when there is something wrong with m onitored items. As for fan speed control, the F75363 can use PWM duty cycle output to automatically control fan speed. The fan speed control is related to tem perature variation. There is 8 step lookup table for users to program PWM duty cycle output to con trol fan speed according to the temperature variation. The F75363 is in the package of 8 pin SOP and powered by 3.3V.