Microchip Technology Inc
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EMC2301

Status: In Production

Features:

  • 4-wire fan compatible
  • High speed PWM (26 kHz)
  • Low speed PWM (9.5Hz - 2240 Hz)
  • Optional detection of aging fans
  • Fan Spin Up Control and Ramp Rate Control
  • Alert on Fan Stall
  • Watchdog Timer
  • 0.5% accuracy from 500 RPM to 16k RPM (external crystal oscillator)
  • 1% accuracy from 500 RPM to 16k RPM (internal clock)
  • SMBus Alert compatible
  • CLK Pin can provide a clock source output
  • Available in an 8-pin MSOP RoHS Compliant package
  • Servers
  • Projectors
  • Industrial and Networking Equipment
  • Notebook Computers
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The EMC2301 is an SMBus compliant fan controller with a PWM fan driver. The fan driver is controlled by a programmable frequency PWM driver and Fan Speed Control algorithm that operates in either a closed loop fashion or as a directly PWM-controlled device.

Each closed loop Fan Speed Control algorithm (FSC) has the capability to detect aging fans and alert the system. It will likewise detect stalled or locked fans and trigger an interrupt.

Additionally, the EMC2301 offers a clock output so that multiple devices may be chained and slaved to the same clock source for optimal performance in large distributed systems.

Additional Features

    Features

    • Programmable Fan Control circuit
      • 4-wire fan compatible
      • High speed PWM (26 kHz)
      • Low speed PWM (9.5Hz - 2240 Hz)
      • Optional detection of aging fans
      • Fan Spin Up Control and Ramp Rate Control
      • Alert on Fan Stall
    • Watchdog Timer
    • RPM-based fan control algorithm
      • 0.5% accuracy from 500 RPM to 16k RPM (external crystal oscillator)
      • 1% accuracy from 500 RPM to 16k RPM (internal clock)
    • SMBus 2.0 Compliant
      • SMBus Alert compatible
    • CLK Pin can provide a clock source output
    • Available in an 8-pin MSOP RoHS Compliant package

     

    Applications

    • Servers
    • Projectors
    • Industrial and Networking Equipment
    • Notebook Computers
Parametrics
Name
Value
comments
Fan Speed Controller
# Fans Drivers
1
PWM/Linear Control
PWM
Typical Accuracy
N/A
Max Accuracy
N/A
Maximum Temperature Range
-40 to 125
Vcc Range (V)
3.0 to 3.6
SMBus Alert
Yes
Voltage Monitors
N/A

Documents

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Application Notes

Product Briefs


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RoHS Information

Part Number
Device Weight
Shipping Weight
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
EMC2301-1-ACZL-TR
0.025600
0.215600
8
MSOP
3x3mm
Matte Tin
e3
Rohs icon
efup china icon
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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