EMC2103-2-AP-TR Standard Microsystems (SMSC), EMC2103-2-AP-TR Datasheet

EMC2103-2-AP-TR

Manufacturer Part Number

EMC2103-2-AP-TR

Description

CLOSED LOOP RPM FAN CONTROLLER

Manufacturer

Standard Microsystems (SMSC)

Datasheet

1.EMC2103-3-KP-TR.pdf (85 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

EMC2103-2-AP-TR

Manufacturer:

SMSC

Quantity:

20 000

Current page: 1 of 85
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PRODUCT FEATURES

The EMC2103 is an SMBus compliant fan controller with

up to up to 3 external and 1 internal temperature

channels. The fan driver can be operated using two

methods each with two modes. The methods include an

RPM based Fan Speed Control Algorithm and a direct

PWM drive setting. The modes include manually

programming the desired settings or using the internal

programmable temperature look-up table to select the

desired setting based on measured temperature.

The temperature monitors offer 1°C accuracy (for

external diodes) with sophisticated features to reduce

errors introduced by series resistance and beta variation

of substrate thermal diode transistors commonly found

in processors.

The EMC2103 also includes a hardware programmable

temperature limit and dedicated system shutdown

output for thermal protection of critical circuitry.

Applications

SMSC EMC2103

Notebook Computers

Projectors

Graphics Cards

Industrial and Networking Equipment

DATASHEET

Features

Programmable Fan Control circuit

RPM based fan control algorithm

Temperature Look-Up Table

Up to Three External Temperature Channels

Hardware Programmable Thermal Shutdown

Programmable High and Low Limits for all channels

Internal Temperature Monitor

3.3V Supply Voltage

SMBus 2.0 Compliant

Two dedicated GPIOs (EMC2103-2 and EMC2103-4

Available in 12-pin, QFN Lead-Free RoHS Compliant

— 4-wire fan compatible

— High and low frequency PWM

— 2.5% accuracy from 500RPM to 16k RPM

— Detects fan aging and variation

— Allows programmed fan response to temperature

— Controls fan speed or PWM drive setting

— Allows externally set temperature data to drive fan

— Supports DTS data from CPU

(EMC2103-2 only)

— Supports 45nm, 60nm, and 90nm CPU diodes

— Automatically detects and supports CPUs requiring BJT

— Resistance error correction

— Supports discrete transistors (i.e. 2N3904)

— 1°C accurate (60°C to 125°C)

— 0.125°C resolution

Temperature

— Cannot be altered by software

— 65°C to 127°C Range

— 2°C accuracy

— 0.125°C resolution

— SMBus Alert compatible

only)

Package (EMC2103-1 and EMC2103-3) or 16-pin,

QFN Lead-Free RoHS Compliant Package

(EMC2103-2 and EMC2103-4)

RPM-Based Fan

Controller with HW

Thermal Shutdown

EMC2103

or Transistor models

Revision 0.88 (06-30-08)

Datasheet

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