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AH2985 Description

The AH2985 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 plementary open-drain output drivers with internal Zener diode protection. It is optimized for low start-up voltage.

AH2985 Key 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
  • Built-in Reverse Voltage Protection Diode
  • Built-in Zener Protection for Output Drivers
  • Average Output Current up to 500mA
  • Package: TO94
  • Totally Lead-Free & Fully RoHS pliant (Notes 1 & 2)