F2970 Datasheet | Unisonic Technologies

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 t R - Kick-back absorption circuit are built in - Current limiter function (The limiter value determined with Rf, limit at IO=480m A 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 .unisonic..tw Copyright © 2013 Unisonic Technologies Co., Ltd 1 of 6 QW-R109-035.a 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 HB 11 IN+ 10 FG - PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 PIN NAME OUT2 VM VCC WH WL VTH RMI P-IN CPWM FG IN+ HB INCT 6VREG S-GND OUT1...