AH293-YG-13 Diodes Inc, AH293-YG-13 Datasheet

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AH293-YG-13

Manufacturer Part Number
AH293-YG-13
Description
Board Mount Hall Effect / Magnetic Sensors HALL IC SMART DC FAN PRE-D 1.8-5.75V400mA
Manufacturer
Diodes Inc
Datasheet
1.AH293-PL-B.pdf (8 pages)

Specifications of AH293-YG-13

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
AH293 is a monolithic fan motor controller with Hall sensor’s
capability. It contains two complementary open-collector
transistors for Motor’s coil driving, automatic lock current
shutdown,
detection (RD) output is for speed detection.
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 AH293 is available in SOT89-5L package.
Features
Description
•
•
•
•
•
•
•
•
•
Typical Application Circuit
AH293
Document number: DS31048 Rev. 6 - 2
On Chip Hall Sensor
Rotor-Locked Shutdown
Automatically Restart
Rotor-State Detection (RD) Output
Built-in Zener Protection for Output Driver
Operating Voltage: 1.8V~5.75 V
Output Current: I
Packaged in SOT89-5L
Green Molding Compound
and
Notes:
recovery
O(AVE)
(1.8V/5.75V)
(alarm)
RD
= 400 mA
V
1. R1, R2: typical 56 Ohm
dd
C1, C2, C3: typical 2.2µF
The R, C value need to be fine tuned based
on coils design.
protections.
1.8V/5.75V DC Brush-Less Fan with RD Output Function
(Note 1)
Also,
D1
rotor-state
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
R
pu
www.diodes.com
1 of 8
1
Pin Assignments
Applications
•
•
D2
2
Two-coil BLDC cooling fans
Low to medium voltage, low power BLDC motors
293
C3
3
4
5
GND
Vdd
GND
DO
Coil2
1
2
3
R1
C1
(Top View)
SOT89-5L
293
7 4
5
Coil1
CONTROLLER
R2
C2
DOB
RD
© Diodes Incorporated
AH293
June 2010

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AH293-YG-13 Summary of contents

Page 1

... Description AH293 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-collector transistors for Motor’s coil driving, automatic lock current shutdown, and recovery protections. detection (RD) output is for speed detection. Rotor-lock shutdown detection circuit turns off the output driver when the rotor is blocked to avoid coil overheat ...

Page 2

... Output Pin GND Ground Functional Block Diagram Vdd Regulator Hall Plate Amp. AH293 Document number: DS31048 Rev LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR Lock detect, shutdown and automatic re-start Control Logic GND www.diodes.com AH293 CONTROLLER DO DOB June 2010 © Diodes Incorporated ...

Page 3

... Conditions Operating Operating = 25 °C, Vdd = 5V, unless otherwise specified) A Conditions Operating I = 180mA 350mA 10mA O OUT1 OUT2 off off off www.diodes.com AH293 CONTROLLER Rating Unit 8 400 mA 700 mA 800 mW °C -55 ~ 150 °C 150 Min Max Unit 1.8 5.75 V °C -20 100 Min Typ. Max - 2.6 4 ...

Page 4

... Document number: DS31048 Rev LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR = 25 °C, Vdd = 5V, unless otherwise specified, Note 4) A Min - -60 - OFF OFF OP RP Vsat Vsat Bop Magnetic Flux Density in Gauss S Marking side N ( SOT89- www.diodes.com AH293 CONTROLLER (1mT = 10 Gauss) Typ. Max Unit 30 60 Gauss -30 - Gauss 60 - Gauss ...

Page 5

... Document number: DS31048 Rev LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR 576 512 480 448 115 120 125 130 224 192 160 128 Power Dissipation Curve www.diodes.com AH293 CONTROLLER 100 416 384 352 320 135 140 145 150 (°C) A June 2010 © Diodes Incorporated ...

Page 6

... Package Y : SOT89-5L Device Package Packaging Code (Note 6, 7) AH293-YG-13 Y SOT89-5L Notes Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 6. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. ...

Page 7

... Package Outline Dimensions Sensor Location AH293 Document number: DS31048 Rev LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR (All Dimensions in mm www.diodes.com AH293 CONTROLLER June 2010 © Diodes Incorporated ...

Page 8

... 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 AH293 Document number: DS31048 Rev LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR IMPORTANT NOTICE LIFE SUPPORT www.diodes.com AH293 CONTROLLER June 2010 © Diodes Incorporated ...

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