EMC2104-BP-TR SMSC, EMC2104-BP-TR Datasheet

EMC2104-BP-TR

Manufacturer Part Number

EMC2104-BP-TR

Description

Motor / Motion / Ignition Controllers & Drivers Dual Closed Loop RPM Fan Ctrl 4Remote

Manufacturer

SMSC

Type

Controllerr

Datasheet

1.EMC2104-BP-TR.pdf (4 pages)

Specifications of EMC2104-BP-TR

Product

Fan / Motor Controllers / Drivers

Operating Supply Voltage

3.3 V

Supply Current

2 mA

Mounting Style

SMD/SMT

Package / Case

QFN-20

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

H&T Electronics

Part Number:

EMC2104-BP-TR

Quantity:

580

Company:

H&T Electronics

Part Number:

EMC2104-BP-TR

Quantity:

580

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PRODUCT FEATURES

General Description

The EMC2104 is an SMBus compliant fan controller with

up to five (up to 4 external and 1 internal) temperature

channels. The fan drivers can be operated using two

methods each with two modes. The methods include an

RPM based Fan Speed Control Algorithm and a direct

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 EMC2104 also includes a hardware programmable

temperature limit

output for thermal protection of critical circuitry.

Applications

SMSC EMC2104

Notebook Computers

Embedded Applications

Projectors

Industrial and Networking Equipment

and dedicated system shutdown

PRODUCT PREVIEW

Features

Two Programmable Fan Control circuits

RPM based fan control algorithm

Temperature Look-Up Table

Up to Four External Temperature Channels

Up to three thermistor compatible voltage inputs

Hardware Programmable Thermal Shutdown

Programmable High and Low Limits for all channels

3.3V Supply Voltage

SMBus 2.0 Compliant

Available in 20-pin QFN Package - Lead Free RoHS

— 4-wire fan compatible

— High speed PWM (26khz)

— Low speed PWM (9.5Hz - 2240Hz)

— Optional detection of aging fans

— 2% accuracy from 500RPM to 16k RPM

— Allows programmed fan response to temperature

— 1 to 4 thermal zones to control each fan driver

— Controls fan speed or drive setting

— Allows externally generated temperature data to control

— Designed to support 45nm, 60nm, and 90nm CPUs

— Automatically detects and supports CPUs requiring the

— Resistance error correction

— 1°C accurate (60°C to 100°C)

— 0.125°C resolution

— Detects fan aging and variation

Temperature

— Cannot be altered by software

— 60°C to 122°C Range or 92°C to 154°C Range

— SMBus Alert compatible

compliant (4mm x 4mm)

Dual RPM-Based PWM

Fan Controller with

Hardware Thermal

Shutdown

EMC2104

fan drivers including two DTS channels

BJT or Transistor models

Revision 1.78 (02-28-11)

Data Brief

Related parts for EMC2104-BP-TR

EMC2104-BP-TR Summary of contents

Page 1

... PRODUCT FEATURES General Description The EMC2104 is an SMBus compliant fan controller with up to five ( external and 1 internal) temperature channels. The fan drivers can be operated using two methods each with two modes. The methods include an RPM based Fan Speed Control Algorithm and a direct drive setting ...

Page 2

... ORDERING NUMBER EMC2104-BP-TR This product meets the halogen maximum concentration values per IEC61249-2-21 For RoHS compliance and environmental information, please visit 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2011 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction purposes is not necessarily given ...

Page 3

... Thermal Shutdown Logic Analog Mux Temp Limit 11 bit Σ Δ Registers ADC Temp Registers Configuration Lookup Table / RPM Control * denotes multiple pin functions Figure 1 EMC2104 Block Diagram 3 PRODUCT PREVIEW SMCLK SMDATA ALERT# SMBus Slave Protocol GPIO1* GPIO2* GPIOs GPIO3* Reference VREF* ...

Page 4

... Package Outline QFN 20-Pin 4mm x 4mm Figure 2 EMC2104 20-Pin 4x4mm QFN Package Outline and Parameters Revision 1.78 (02-28-11) Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown 4 PRODUCT PREVIEW SMSC EMC2104 ...

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