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FAN8404D

Fairchild Semiconductor
Part Number FAN8404D
Manufacturer Fairchild Semiconductor
Description 2 Phase Half Wave BLDC Motor Driver
Published Mar 30, 2005
Detailed Description www.fairchildsemi.com FAN8404D 2 Phase Half Wave BLDC Motor Driver Features • • • • • • • A wide range of operation vo...
Datasheet PDF File FAN8404D PDF File

FAN8404D
FAN8404D

Overview
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 output current Alarm output withstanding voltage Maximum hall input AC level Operating temperature Storage temperature Symbol VCCMAX PDMAX ΘJA VOMAX IOMAX IAL VAL VHACMAX TOPR TSTG Value 18 429note2 620note3 291.
61note2 201.
52note3 30 1.
2note4 10 36 6 −25 ~ 85 −55 ~ 150 Unit V mW °C/W V A mA V V °C °C Note1: PCB Condition: Thickness (1.
6mm), Dimension (76.
2mm * 114.
3mm) Refer: EIA/J SED 51-3 & EIA/J SED 51-7 Note2: Air condition (0m/s) Note3: Air condition (3m/s) Note4: Should not exc...


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