F2970

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, 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  ORDERING INFORMATION Note: Ordering Number Lead Free Halogen Free F2970L-S18-T F2970G-S18-T F2970L-S18-R F2970G-S18-R xx: Output Voltage, refer to Marking Information. Package SOP-18 SOP-18 SOP-18 Packing Tube Tape Reel www.unisonic.com.tw Copyright © 2013 Unisonic Technologies Co., Ltd 1 of 6 QW-R109-035.a F2970 Preliminary  PIN CONFIGURATION OUT2 1 VM 2 VCC 3 WH 4 WL 5 VTH 6 RMI 7 P-IN 8 CPWM 9 UTC F2970 LINEAR INTEGRATED CIRCUIT 18 P-GND 17 OUT1 16 S-GND 15 6VREG 14 CT 13 IN12...