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EMC2302-2-AIZL-TR

MCHPEMC2302-2-AIZL-TR

Microchip Technology
Motor Driver PWM 10-MSOP
Active9,656 in stock
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Overview

The EMC2302-2-AIZL-TR is a dual-channel PWM fan controller designed for precision thermal management using an RPM-based control algorithm. It supports 4-wire fans and operates over a 3V to 3.6V supply range while consuming only 0.4mA. The device offloads fan speed regulation from the host processor by maintaining constant RPM regardless of supply voltage fluctuations or fan aging.

Why Choose This Part

This controller features a sophisticated RPM-based algorithm that automatically adjusts PWM duty cycles to compensate for mechanical wear and aging in fans. It includes integrated safety features such as a watchdog timer, fan stall alerts, and programmable spin-up sequences to ensure reliable startup under high friction conditions.

Applications

Server Thermal Management
Redundant cooling systems where precise RPM control and stall detection are critical for uptime.
Projectors
Quiet operation through smooth ramp-rate control and high-frequency PWM to eliminate audible switching noise.
Networking Equipment
Industrial-grade cooling for switches and routers with SMBus alert capabilities for system health monitoring.

Key Specifications

Function Fan Control
Interface PWM
Applications Networking and Communications
Mounting Type Surface Mount
Package / Case 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Voltage - Supply 3V ~ 3.6V
Operating Temperature -40degC ~ 125degC
Supplier Device Package 10-MSOP

Getting Started

Interface the device via the SMBus/I2C pins to a host microcontroller to configure the look-up tables and ramp rates. Use the 26 kHz PWM setting to minimize acoustic noise in consumer applications and monitor the TACH input for real-time speed feedback. Engineers can leverage Microchip's evaluation tools and standard SMBus libraries for rapid firmware integration.