AH291-YL-13 Diodes Inc, AH291-YL-13 Datasheet

Industrial Hall Effect / Magnetic Sensors HALL IC AIO DRIVER DCOIL 1.8V-5.75V

AH291-YL-13

Manufacturer Part Number
AH291-YL-13
Description
Industrial Hall Effect / Magnetic Sensors HALL IC AIO DRIVER DCOIL 1.8V-5.75V
Manufacturer
Diodes Inc
Datasheet

Specifications of AH291-YL-13

Operational Type
Hall Effect Smart Fan Motor Controllers
Operating Supply Voltage
1.8 V to 5.75 V
Current Rating
2.6 mA
Package / Case
SOT89-5L
Operating Point Min/max
60 G
Maximum Operating Temperature
+ 100 C
Minimum Operating Temperature
- 20 C
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
AH291 is a monolithic fan motor controller with Hall sensor’s
capability. It contains two complementary open-collector
drivers for motor’s coil driving, automatic lock shutdown and
restart function 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.
The AH291 is available in SIP4 and SOT89-5L packages.
Features
Description
Typical Application Circuit
AH291
Document number: DS31041 Rev. 8 - 2
On Chip Hall Sensor
Rotor-Locked Shutdown
Automatically Restart
Built-in Zener Protection for Output Driver
Operating Voltage: 1.8V to 5.75V
Output Current: I
Packages: SIP-4L and SOT89-5L
Green Molding Compound
1.8V/5.75V
Notes:
O(AVE)
= 400mA
1. R1, R2: typical 56 Ohm
C1, C2, C3: typical 2.2µF
The R, C value need to be fine tuned based on coils design.
V
(Note 1)
dd
D1
C3
1.8V/5.75V Brush-Less DC Fan
DO
1
D2
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
www.diodes.com
2
291
3
1 of 9
4
Pin Assignments
Applications
GND
(Top View)
1 2
Two-coil BLDC cooling fans
Low to medium voltage, low power BLDC motors
SIP-4L
291
DOB
3
4
1 : Vdd
2 : DO
3 : DOB
4 : GND
R1
C1
L2
GND
Vdd
DO
1
2
3
(Top View)
SOT89-5L
CONTROLLER
C2
R2
L1
291
© Diodes Incorporated
AH291
June 2010
7 4
5
DOB
NC

Related parts for AH291-YL-13

AH291-YL-13 Summary of contents

Page 1

... Description AH291 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-collector drivers for motor’s coil driving, automatic lock shutdown and restart function 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 ...

Page 2

... GND Ground NC Not Connected Functional Block Diagram Vdd Regulator Hall Plate Amp. AH291 Document number: DS31041 Rev LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR Lock detect, shutdown and automatic re-start Control Logic GND www.diodes.com AH291 CONTROLLER DO DOB June 2010 © Diodes Incorporated ...

Page 3

... SOT89-5L Conditions Operating Operating = 25 °C, Vdd = 5V, unless otherwise specified) A Conditions Operating I = 180mA 350mA O CT OUT1 OUT2 off off www.diodes.com AH291 CONTROLLER Rating Unit 8 400 400 700 550 mW 800 mW -55 ~ 150 150 Min Max Unit 1.8 5.75 -20 100 Min Typ. Max - 2.6 4 ...

Page 4

... AH291 Document number: DS31041 Rev LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR = 25 °C, Vcc = 24V, unless otherwise specified, A Min - -60 - OFF OFF SAT SAT S S Marking side SOT89- SIP- www.diodes.com AH291 CONTROLLER Note 3) (1mT = 10 Gauss) Typ. Max Unit 30 60 Gauss -30 - Gauss 60 - Gauss Brp ...

Page 5

... Pow er D iss ipation Curv 576 512 480 448 115 120 125 130 224 192 160 128 Power Dissipation Curve www.diodes.com AH291 CONTROLLER 100 286 264 242 220 130 135 140 150 (° 100 416 384 352 ...

Page 6

... X : Internal Code : A~Z : Green ( Top View ) Year : 0 Week : A~Z : 1~26 week; a~z : 27~52 week; 291 represents 52 and 53 week X : Internal code A~Z : Green www.diodes.com AH291 CONTROLLER Packing 13” Tape and Reel Part Number Quantity Suffix -13 June 2010 © Diodes Incorporated ...

Page 7

... Package type: SIP-4L 0.7 mm Active Area Depth Package Dimension AH291 Document number: DS31041 Rev LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR (All Dimensions in mm) Marking side 1.95 士 0.1mm 1.1 士 0.1mm www.diodes.com AH291 CONTROLLER Sensor Location June 2010 © Diodes Incorporated ...

Page 8

... Package Outline Dimensions (2) Package type: SOT89-5L Sensor Location AH291 Document number: DS31041 Rev LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR (Continued www.diodes.com AH291 CONTROLLER June 2010 © Diodes Incorporated ...

Page 9

... Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2010, Diodes Incorporated www.diodes.com AH291 Document number: DS31041 Rev LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR IMPORTANT NOTICE LIFE SUPPORT www.diodes.com AH291 CONTROLLER June 2010 © Diodes Incorporated ...

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