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PDF AH293 Data sheet ( Hoja de datos )
| Número de pieza | AH293 | |
| Descripción | LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER | |
| Fabricantes | Diodes Incorporated | |
| Logotipo |  |
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Features
AH293
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
General Description
• 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: IO(AVE) = 400 mA
• Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
• Packages: SOT89-5L
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.
Ordering Information
AH293 - X X X
Package
Y: SOT89-5L
Lead-Free
L : Lead Free
Packing
-7/-13 : Taping
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
Package Packaging
Code
(Note 2)
7” Tape and Reel
Quantity
Part Number Suffix
AH293-Y Y SOT89-5L 2500/Tape & Reel
Lead-free
-13
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
1 of 7
www.diodes.com
JANUARY 2007
© Diodes Incorporated
1 page  
AH293
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Magnetic Characteristics ( TA = 25 °C, Vdd = 5V, unless otherwise specified )
Characteristics
Operation Point
Release Point
Hysteresis
Symbol
Bop
Brp
Bhy
Min.
--
-60
--
Typ.
30
-30
60
( 1mT = 10 Gauss )
Max.
Unit
60 Gauss
-- Gauss
-- Gauss
Operating Characteristics
DOB
RP 12 OFF
10
8
6
4
ON 2 OP
Vsat
Brp 0
Bop
Magnetic Flux Density in Gauss
DO
OFF
RP
12 OP
10
8
6
4
2 ON
Vsat
Brp 0
Bop
Magnetic Flux Density in Gauss
S
Marking
side
N
( SOT89-5 )
AH293 Rev. 2
5 of 7
www.diodes.com
JANUARY 2007
© Diodes Incorporated
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet AH293.PDF ] | |
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