EEWORLDEEWORLDEEWORLD

Part Number

Search

AH285-YL-7

Description
HALL-EFFECT SMART FAN MOTOR CONTROLLER
File Size573KB,10 Pages
ManufacturerDiodes
Websitehttp://www.diodes.com/
Download Datasheet Compare View All

AH285-YL-7 Overview

HALL-EFFECT SMART FAN MOTOR CONTROLLER

NOT RECOMMENDED FOR NEW DESIGN
USE
AH2985
AH285
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Description
The AH285 is a single-chip solution for driving two-coil brushless
direct current (BLDC) fans and motors. The device includes a Hall-
effect sensor, dynamic offset correction and two complementary
open-drain output drivers with internal Zener diode protection.
To help protect the motor coils, the AH285 provides Rotor Lock
Protection which shuts down output drives if rotor lock is detected.
The device automatically re-starts when the rotor lock is removed.
A Tachometer output is provided by open-drain Frequency Generator
(FG) Pin which allows external interface to monitor motor rotation or
speed. The FG output is the magnetic change frequency.
The AH285 is available in SOT89-5 package.
Pin Assignments
(Top View)
Vdd
OBSOLETE – PART DISCONTINUED
1
2
285
5
FG
GND
DO
3
7
DOB
4
SOT89-5
Features
Applications
Single-chip Solution
Operating Voltage: 3.8V to 20V
Built-in Hall Sensor and Input Amplifier
Tachometer (FG) Output
Rotor Lock Protection (Lock detection, output shutdown and
automatic re-start)
Built-in Zener Protection for Output Driver
Average Output Current up to 500mA
Packaged in SOT89-5
Green Molding Compound
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Two-coil BLDC Cooling Fans
Low to Medium Voltage, Low Power BLDC Motors
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AH285
Document number: DS31029 Rev. 9 - 3
1 of 10
www.diodes.com
June 2017
© Diodes Incorporated

AH285-YL-7 Related Products

AH285-YL-7 AH285-Y AH285-YL-B
Description HALL-EFFECT SMART FAN MOTOR CONTROLLER HALL-EFFECT SMART FAN MOTOR CONTROLLER HALL-EFFECT SMART FAN MOTOR CONTROLLER

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号