AH293-Y DIODES [Diodes Incorporated], AH293-Y Datasheet

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AH293-Y

Manufacturer Part Number
AH293-Y
Description
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Manufacturer
DIODES [Diodes Incorporated]
Datasheet
Features
Ordering Information
Note:
Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
AH293 Rev. 2
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
products (Note 1)
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:
Lead Free Finish/RoHS Compliant for Lead Free
Packages: SOT89-5L
http://www.diodes.com/datasheets/ap02001.pdf.
Lead-free
AH293-Y
Device
I
O
(
AVE
)
= 400 mA
Package
Y: SOT89-5L
Code
Y
Package
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
Packaging
SOT89-5L
www.diodes.com
(Note 2)
AH293 X X X
1 of 7
L : Lead Free
Lead-Free
-
2500/Tape & Reel
General 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. Also, rotor-state 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.
Quantity
7” Tape and Reel
Part Number Suffix
-7/-13 :
Packing
-13
Taping
CONTROLLER
©
JANUARY 2007
Diodes Incorporated
AH293

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AH293-Y Summary of contents

Page 1

... Ordering Information Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device AH293-Y Lead-free Note: 2. 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. AH293 Rev. 2 ...

Page 2

... Pin Assignment Pin Descriptions AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR Vdd 1 5 AH293 2 GND SOT89-5L Symbol Description RD Rotor-State Detection Input Power Output Pin DOB Output Pin GND Ground www.diodes.com CONTROLLER RD DOB JANUARY 2007 © Diodes Incorporated ...

Page 3

... RD (alarm) Notes: R1, R2: typical C1, C2, C3: typical 2.2 F The R, C value need to be fine tuned based on coils design. 1.8V/5.75V DC Brush-Less Fan with RD Output Function AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR Lock shutdown and Automatic recovery Control Logic Amp GND ...

Page 4

... The output of IC will be switched after the supply voltage is over 1.8V, but the magnetic characteristics won't be normal until the supply is over 2.0V. Truth Table IN- IN Latch-type RD output is low during rotation and high during stop AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR ( T = 25° Symbol (AVE (PEAK) ...

Page 5

... Magnetic Characteristics Characteristics Operation Point Release Point Hysteresis Operating Characteristics DOB RP ON Brp 0 Magnetic Flux Density in Gauss AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR = 25 ° 5V, unless otherwise specified ) A dd Symbol Min. Bop -- Brp -60 Bhy -- 12 OFF Vsat ...

Page 6

... Marking Information (1) SOT89-5L AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR 640 576 512 480 110 115 120 125 256 224 192 ...

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. AH293 Rev. 2 LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR (unit:mm ) ...

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