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AH2984 - TWO PHASE HALL-EFFECT SMART FAN MOTOR CONTROLLER

Datasheet Summary

Description

The AH2984 is a single-chip solution for driving two-coil brushless direct current (BLDC) fans and motors.

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

Features

  • Single-chip solution.
  • Operating Voltage: 2.5V to 15V.
  • Built-in Hall sensor and input amplifier.
  • Rotor Lock Protection (Lock detection, output shutdown and automatic re-start).
  • Built-in reverse voltage protection diode.
  • Built-in Zener protection for output drivers.
  • Average output current up to 500mA.
  • Packages: SIP-4 and SOT89-5.
  • “Green” Molding Compound.
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2.

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Datasheet preview – AH2984

Datasheet Details

Part number AH2984
Manufacturer DIODES Incorporated
File Size 323.71 KB
Description TWO PHASE HALL-EFFECT SMART FAN MOTOR CONTROLLER
Datasheet download datasheet AH2984 Datasheet
Additional preview pages of the AH2984 datasheet.

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Full PDF Text Transcription

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AH2984 TWO PHASE HALL-EFFECT SMART FAN MOTOR CONTROLLER Description The AH2984 is a single-chip solution for driving two-coil brushless direct current (BLDC) fans and motors. The device includes a Halleffect sensor, dynamic offset correction and two complementary open-drain output drivers with internal Zener diode protection. It is optimized for low start-up voltage. Pin Assignments (Top View) AH2984 To help protect the motor coils, the AH2984 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. Over temperature shutdown provides thermal protection for the device. The AH2984 is available in SIP4 and SOT89-5 packages.
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