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FAN8404D Datasheet 2 Phase Half Wave BLDC Motor Driver

Manufacturer: Fairchild (now onsemi)

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General 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.

Overview

www.fairchildsemi.com FAN8404D 2 Phase Half Wave BLDC Motor Driver.

Key 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.

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