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AH289DYA

Description
High Voltage Hall-Effect Smart Fan Motor Controller
File Size167KB,7 Pages
ManufacturerAnachip
Websitehttp://www.anachip.com/
Download Datasheet View All

AH289DYA Overview

High Voltage Hall-Effect Smart Fan Motor Controller

AH289
High Voltage Hall-Effect Smart Fan Motor Controller
Features
- On chip Hall sensor
-
Rotor-locked shutdown
-
Automatically restart
- Rotor-state detection (RD) output
- Built-in Zener protection for output driver
- Operating voltage: 3.8V~28V
- Output current: I
O(AVE)
= 400mA
- Package: SIP-5L, SOT89-5L
General Description
AH289 is a monolithic fan motor controller with Hall
sensor’s capability. It contains two complementary
open-drain transistors for motor’s coil driving,
automatic lock current shutdown, and recovery
protections. In addition, rotor-state detection (RD)
output is for Rotor-state detection.
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
the rotor is blocked. Until the blocking is removed,
the motor recovers running normally.
Pin Configuration
289
( Front View )
1 : RD
2 : VCC
3 : DO
4 : DOB
5 : GND
1 2 3 4 5
Pin Descriptions
Symbol
RD
VCC
DO
DOB
GND
Description
Rotor-state detection
Input power
Output pin
Output pin
Ground
SIP-5L
VCC 1
GND 2
DO 3
SOT89-5L
289
5 RD
7 DOB
4
Ordering Information
AH289 X - X X X
Wafer Body
Blank or
A~Z : if necessary
to specify
Package
P: SIP-5L
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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