AH284-Y Ver la hoja de datos (PDF) - Anachip Corporation
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AH284-Y Datasheet PDF : 9 Pages
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Hall-Effect Smart Fan Motor Controller
AH284
Features
- On chip Hall sensor
- Rotor-locked shutdown
- Automatically restart
- Built-in Zener protection for output driver
- Operating voltage: 3.8V~20 V
- Output current: IO(AVE) = 500mA for SIP-4/SOT89-5
- Output current: IO(AVE) = 400mA for SOT23-5
- Package: SIP-4L, SOT23-5L, SOT89-5L
General Description
AH284 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
Pin Descriptions
VCC 1
GND 2
Front View
284
1 : VCC
2 : DO
3 : DOB
4 : GND
12 3 4
SIP-4L
5 NC
VCC
5
DOB
4
284
284
Name
VCC
DO
DOB
GND
NC
DO 3
74 DOB
SOT89-5L
123
NC GND DO
SOT23-5
Ordering Information
AH284 X - X X X
Description
Input power
Output pin
Output pin
Ground
Not connected
Wafer Body
Blank or
A~Z : if necessary
to specify
Package
P: SIP-4L
W:SOT23-5L
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. 0.5 Jan 17, 2005
1/9
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