ah285-yl-b Diodes, Inc., ah285-yl-b Datasheet

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ah285-yl-b

Manufacturer Part Number
ah285-yl-b
Description
Hall-effect Smart Fan Motor Controller
Manufacturer
Diodes, Inc.
Datasheet
Features
Ordering Information
Note:
Note:
Pin Assignment
AH285 Rev. 3
Lead-free
GND
Vdd
DO
AH285-Y
1
2
3
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
Device
On Chip Hall Sensor
Rotor-Locked Shutdown
Automatically Restart
Frequency Generator (FG) Output
Built-in Zener Protection for Output Driver
Operating Voltage: 3.8V~20V
Output Current: I
Lead Free Package: SOT89-5L
Lead Free Finish/RoHS Compliant (Note 1)
http://www.diodes.com/datasheets/ap02001.pdf.
( Top View )
SOT89-5L
285
Package
Code
Y
O(AVE)
7 4
5
Y : SOT89-5L
DOB
FG
= 500mA for SOT89-5L
Package
Packaging
SOT89-5L
(Note 2)
AH285 - X X X
Quantity
L : Lead Free
HALL-EFFECT SMART FAN MOTOR CONTROLLER
www.diodes.com
Lead-Free
NA
1 of 7
Tube/Bulk
Part Number
General Description
AH285 is a monolithic fan motor controller with Hall sensor’s
capability. It contains two complementary open-drain transistors
as motor coil drivers, automatic lock current shutdown, and
recovery protections. Additional, frequency generator (FG) output
is for speed detection relatively.
Rotor-lock shutdown detection circuit turns off the output driver
when the rotor is blocked to avoid coil overheat. Then, the
automatic recovery circuit will restart the motor. These protected
actions are repeated and periodic during the blocked period. Until
the blocking is removed, the motor recovers and runs normally.
Suffix
NA
-13 : Taping
Packing
2500/Tape & Reel
Quantity
13” Tape and Reel
Part Number
©
Diodes Incorporated
Suffix
AH285
-13
JULY 2007

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ah285-yl-b Summary of contents

Page 1

... SOT89-5L AH285 Rev. 3 HALL-EFFECT SMART FAN MOTOR CONTROLLER General Description AH285 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-drain transistors as motor coil drivers, automatic lock current shutdown, and recovery protections. Additional, frequency generator (FG) output is for speed detection relatively. ...

Page 2

... Frequency Generation Vdd Input Power DO Output Pin DOB Output Pin GND Ground Block Diagram Vdd 2 Regulator Hall Plate Amp. AH285 Rev. 3 HALL-EFFECT SMART FAN MOTOR CONTROLLER Lock shutdown and Automatic recovery Control Logic 5 1 GND www.diodes.com AH285 DOB JULY 2007 © ...

Page 3

... Storage Temperature ST T Maximum Junction Temperature J θ (Note 3) Thermal Resistance Junction-to-Case JA θ Note: 3. should be confirmed with what heat sink thermal resistance heat sink contacting, JA AH285 Rev. 3 HALL-EFFECT SMART FAN MOTOR CONTROLLER GND R pu 285 25°C) ...

Page 4

... IN- IN Magnetic Characteristics Symbol Characteristics Bop Operation Point Brp Release Point Bhy Hysteresis AH285 Rev. 3 HALL-EFFECT SMART FAN MOTOR CONTROLLER = 25 °C, Vdd =12V, unless otherwise specified Conditions Operating Operating V =24V OUT I =300mA O I =500mA O I =300mA O I ...

Page 5

... Operating Characteristics DOB Brp 0 Magnetic Flux Density in Gauss AH285 Rev. 3 HALL-EFFECT SMART FAN MOTOR CONTROLLER OFF OFF OP RP Vsat Vsat Bop Magnetic Flux Density in Gauss S Marking side N ( SOT89- www.diodes.com AH285 Brp 0 Bop JULY 2007 © ...

Page 6

... Marking Information (1) SOT89-5L ( Top View ) 5 285 AH285 Rev. 3 HALL-EFFECT SMART FAN MOTOR CONTROLLER 576 512 480 448 115 120 125 130 224 192 160 ...

Page 7

... Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AH285 Rev. 3 HALL-EFFECT SMART FAN MOTOR CONTROLLER (unit : mm) ...

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