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AH293

Features: On chip Hall sensor Rotor-locked shutdown Automatically restart Rotor-state detection (RD) output Buil t-in Zener protection for output driver Operating voltage: 1.8V~5.75 V Output current: IO(AVE) = 400 mA Package: SIP-5L, SOT23-5L, SOT89-5LPinoutSpecifications Characteristics ...

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SeekIC No. : 004278814 Detail

AH293: Features: On chip Hall sensor Rotor-locked shutdown Automatically restart Rotor-state detection (RD) output Buil t-in Zener protection for output driver Operating voltage: 1.8V~5.75 V Output curren...

AH293 Data Sheet

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Part Number:
AH293
Supply Ability:
5000

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  • 1~5000
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  • Processing time
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Product Details

Description



Features:

On chip Hall sensor
Rotor-locked shutdown
Automatically restart
Rotor-state detection (RD) output
Buil t-in Zener protection for output driver
Operating voltage: 1.8V~5.75 V
Output current: IO(AVE) = 400 mA
Package: SIP-5L, SOT23-5L, SOT89-5L




Pinout

Connection Diagram




Specifications

Characteristics
Symbol
Rating
Unit
Output Zener-breakdown Voltage
Vz
38
V
Operating Supply Voltage
Vcc
8
V
Output Current
IO(AVE)

400
mA
IO(PEAK)
500
Power Dissipation
PD
SIP5
550
mW
SOT23-5
230
SOT89-5
800
Operating temperature range
Topr
-20 ~ 100
°C
Storage temperature range
Tstg
-55 ~ 150
°C
Maximum Junction Temp.
Tj
150
°C


Part Number AH293
Output Comp.
Description Low Voltage Hall Effect Smart Fan Motor Controller
Operating Voltage (V) 1.8 to 5.75
Typical Supply Current (Ave)
Output Current (Ave) 400mA
Operating Point Bop (Gauss) 5/60
Release Point Brp (Gauss) -60/-5
Operating Ambient Temp Range (°C) -20 to +100





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. Besides, rotor-state detection (RD) output is for speed detection.

To avoid coil burning, rotor-lock shutdown detection circuit shut down the output driver if the rotor is blocked and then the automatic recovery circuit will try to restart the motor. These protecting actions of AH293 are repeated and periodic during the blocked period.Until the blocking is removed, the motor recovers running normally.






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