UNISONIC TECHNOLOGIES CO.
, LTD F2970 Preliminary LINEAR INTEGRATED CIRCUIT FOR FAN MOTOR SINGLE-PHASE FULL-WAVE DRIVER  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, lo...

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