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PDF ( 数据手册 , 数据表 ) AH287

零件编号 AH287
描述 High Voltage Hall-Effect Smart Fan Motor Controller
制造商 Anachip
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AH287 数据手册, 描述, 功能
High Voltage Hall-Effect Smart Fan Motor Controller
AH287
„ Features
- On chip Hall sensor
- Rotor-locked shutdown
- Automatically restart
- Built-in Zener protection for output driver
- Operating voltage: 3.8V~28V
- Output current: IO(AVE) = 400mA
- Package: SIP-4L, SOT89-5L
„ General Description
AH287 is a monolithic fan motor controller with Hall
sensor’s capability. It contains two complementary
open-drain drivers for motor’s coil driving, automatic
lock shutdown and restart function relatively.
To avoid coil burning, rotor-lock shutdown detection
circuit shut down the output driver if the rotor is
blocked and then the automatic recovery circuit will
try to restart the motor. This function repeats while
rotor is blocked. Until the blocking is removed, the
motor recovers running normally.
„ Pin Assignment
287 Front View
1 : VCC
2 : DO
3 : DOB
4 : GND
12 3 4
SIP-4L
„ Pin Descriptions
Name
VCC
DO
DOB
GND
NC
Description
Input power
Output pin
Output pin
Ground
Not connected
VCC 1
GND 2
287
5 NC
DO 3
74 DOB
SOT89-5L
„ Ordering Information
AH287 X - X X X
Wafer Body
Blank or
A~Z : if necessary
to specify
Package
P: SIP-4L
Y: SOT89-5L
Lead
L : Lead Free
Blank: Normal
Packing
Blank : Tube or Bulk
A : Tape & Reel
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 0.1 Jan 17, 2005
1/7












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