Key facts
- Brand
- AnaChip
- Model
- AH287
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-05
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Anachip AH287 High Voltage Hall-Effect Smart Fan Motor Controller Datasheet
The Anachip AH287 is a high voltage Hall-effect smart fan motor controller designed for brushless DC fans. It integrates an on-chip Hall sensor with automatic restart functions to handle rotor lockouts, protecting the motor from damage caused by blocked rotors.
The device operates within a supply voltage range of 3.8V to 28V and is available in SIP-4L and SOT89-5L packages. It includes built-in Zener protection for output drivers and features automatic recovery circuits that attempt to restart the motor until the blockage is removed.
AnaChip AH287 specifications
| Supply Voltage | 3.8V ~ 28V |
|---|---|
| Output Current (SIP4/SOT89-5) | 400 mA |
| Operating Temperature | -40 ~ 100 °C |
| Storage Temperature | -55 ~ 150 °C |
| Output Zener-breakdown Voltage | 42V to 65V (Max) |
Source: Anachip AH287 High Voltage Hall-Effect Smart Fan Motor Controller Datasheet
All AnaChip AH287 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What are the available package types?
The AH287 is available in SIP-4L and SOT89-5L packages.
From: Anachip AH287 High Voltage Hall-Effect Smart Fan Motor Controller Datasheet
What are the magnetic operate and release points?
The typical operate point (Bop) is 30 Gauss, and the typical release point (Brp) is -30 Gauss.
From: Anachip AH287 High Voltage Hall-Effect Smart Fan Motor Controller Datasheet
What is the operating voltage range of the AH287?
The controller operates from 3.8 V up to 28 V.
Does the AH287 include rotor‑lock shutdown protection?
Yes, it has a rotor‑locked shutdown sensor capability.