器件名称:
FAN8404D
功能描述:
2 Phase Half Wave BLDC Motor Driver
文件大小:
89.95KB 共12页
简 介:
www.fairchildsemi.com FAN8404D 2 Phase Half Wave BLDC Motor Driver Features A wide range of operation voltage: 4V to 15V Built-in motor lock detector. Automatic restart function Alarm output for a motor lock detection Built-in thermal shut down circuits Built-in reverse current protection diode Compact package: 8-SOP-225 Description The FAN8404D is a monolithic integrated circuit, and suitable for DC cooling fan motors. 8-SOP-225 1 Typical Applications DC cooling fan motor Ordering Information Device FAN8404D FAN8404DTF Package 8-SOP-225 8-SOP-225 Operating Temp. 25°C ~ 85°C 25°C ~ 85°C Rev.1.0.3 2002 Fairchild Semiconductor Corporation FAN8404D Block Diagram OUTB 1 3 LD 2 Commutation & Control & TSD AL OUTA 7 VCC GND 4 5 6 IN+ IN- 8 Pin Definitions Pin Number 1 2 3 4 5 6 7 8 Pin Name OUTB AL LD VCC IN+ IN OUTA GND I/O O O I I O Pin Function Description Motor output B Alarm output Triangle pulse generator for lock detector and automatic restart Supply voltage Hall input + Hall input Motor output A Ground Remark Open Collector - 2 FAN8404D Equivalent Circuits Description OUTB OUTA Pin No. 1 7 1 7 Commutation Internal Circuit AL 2 2 Lock detector LD 3 3 Lock detector & Automatic restart Commutation VLDCP VLDCL IN+ IN- 5 6 5 6 Commutation 3 FAN8404D Absolute Maximum Ratings (Ta = 25°C) Parameter Maximum power supply voltage Maximum power dissipationnote1 Thermal resistancenote1 Maximum output voltage Maximum output current Alarm ……
