F2970

DESCRIPTION 

The UTC F2970 is a single-phase full-wave bipolar driver

control IC with excellent efficiency for fan motor. 

FEATURES 

* Single-phase full-wave drive (16V to 1.2A transistors are built in)

* Speed adjustment function by thermistor input and external 

signal incorporated 

→Enables silent and low-vibration variable speed control 

through direct PWM control with separately-excited upper tR

* Kick-back absorption circuit are built in 

* Current limiter function (The limiter value determined with Rf, 

limit at IO=480mA with RL=1Ω connection,) 

* Low-consumption, low-loss, and low-noise drive enabled by the 

soft switching circuit during phase shift 

* HB incorporated 

* Lock protection and automatic reset functions incorporated 

* FG (rotation detection) output 

* Regeneration Di incorporated with less external parts 

* Thermal shutdown circuit incorporated 

规格书F2970