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AH284 - HALL-EFFECT SMART FAN MOTOR CONTROLLER

Datasheet Summary

Description

The AH284 is a single-chip solution for driving two-coil brushless direct current (BLDC) fans and motors.

The device includes a Hall-effect sensor, dynamic offset correction and two complementary open-drain output drivers with internal Zener diode protection.

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Datasheet preview – AH284

Datasheet Details

Part number AH284
Manufacturer DIODES Incorporated
File Size 173.01 KB
Description HALL-EFFECT SMART FAN MOTOR CONTROLLER
Datasheet download datasheet AH284 Datasheet
Additional preview pages of the AH284 datasheet.

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Full PDF Text Transcription

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AH284 HALL-EFFECT SMART FAN MOTOR CONTROLLER Description Pin Assignments The AH284 is a single-chip solution for driving two-coil brushless direct current (BLDC) fans and motors. The device includes a Hall-effect sensor, dynamic offset correction and two complementary open-drain output drivers with internal Zener diode protection. To help protect the motor coils, the AH284 provides Rotor Lock Protection which shuts down output drives if rotor lock is detected. The device automatically re-starts when the rotor lock is removed. The AH284 is available in SIP4 and SOT89-5L packages. (Top View) (Top View) 284 Vdd 1 1 : Vdd 5 NC 2 : DO GND 2 284 12 3 4 SIP-4L 3 : DOB 4 : GND DO 3 74 DOB SOT89-5L Features Applications • Single-chip solution • Operating Voltage: 3.
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