FD177

FD177 Version : A.003 Issue Date : 2008/06/10 File Name : SP-FD177-A.003.doc Total Pages : 8 Single Coil Brushless DC Motor Drivers with Soft-Switching ( 2.0 to 6.5 Volts ) SILICON TOUCH TECHNOLOGY INC. 9-7F-1 Prosperity Road I Science-Based Industrial Park Hsinchu, Taiwan 300, R.O.C. Tel：886-3-5645656 Fax：886-3-5645626 SILICON TOUCH TECHNOLOGY INC. FD177 General Specifications FD177 is a single coil DC brushless motor driver IC with soft-switching, locked protection, thermal shut down protection circuit, power polarity reverse protection and frequency generator. The driver is optimal for single coil fan applications with less external components. Features and Benefits z Support single-phase full wave Brushless DC Motor Driver z Built-in Hall sensor input signal amplifier z Low voltage startup (VDD=2.0V) z High driving capability z Lock detection and automatic self-restart z Power polarity reverse protection z Thermal shut down protection circuit z Thin, compact, highly reliable package (TSOT-28) Pin Description O1 VSS FGR HP O2 VDD NC HN Package : TSOT-28 NO. NAME DESCRIPTION 1 O1 Output driving & sinking pin 1 2 VSS Ground pin 3 FGR Frequency generator 4 HP Hall sensor in+ 5 HN Hall sensor in6 NC None connection 7 VDD Power supply pin 8 O2 Output driving & sinking pin 2 FD177 Version：A.003 Page：1 SILICON TOUCH TECHNOLOGY INC. FD177 Absolute Maximum Ratings ( Unless otherwise noted, VDD=5V, TA = 25 °C ) Characteristic Symbol Rating Supply Voltage...