AH287-PG-B

Overview

The AH287-PG-B is a monolithic fan motor controller integrated circuit from Diodes Incorporated, designed for brushless DC (BLDC) motor driving applications. It integrates a driver and control stage in a single package, supporting supply voltages from 3.8V to 28V. The device features Hall sensor capability and contains two complementary open-drain drivers for coil driving. It operates with low current consumption and includes automatic commutation logic, simplifying the design of cooling fan systems.

Feature Summary

• Integrates driver and control stages for BLDC fan motors
• Supports Hall sensor input for commutation
• Features complementary open-drain outputs for coil driving
• Operates within a wide voltage range of 3.8V to 28V

Applications

• Brushless DC fan motor control
• Cooling system drives
• HVAC fan controllers

Procurement Notes

Verify the specific suffix PG-B against the manufacturer's latest datasheet to confirm pinout and packaging details. Ensure compatibility with the target motor's Hall sensor requirements and operating voltage range before integration into the final design.

Selection Notes

Select this component for applications requiring an integrated solution for small BLDC fans. It eliminates the need for external commutation logic or complex gate drive circuits. Consider the 4-SIP package for space-constrained designs where thermal performance and simple interface are priorities.

Part Context

This part belongs to Diodes Incorporated's portfolio of power management and motor control ICs. It is specifically categorized under motor drivers and controllers, targeting the consumer electronics and industrial cooling markets where reliable, low-cost fan control is essential.

Replacement Considerations

Check for direct cross-references in distributor databases. Verify if alternative parts offer compatible voltage ranges and pinouts. Ensure any substitute maintains the same Hall sensor interface and output configuration.