SMSC EMC1001

DATASHEET

Revision 1.6 (01-29-07)

Datasheet

PRODUCT FEATURES

EMC1001

1.5°C SMBus

Temperature Sensor in

Miniature SOT-23

General Description

The EMC1001 is a tiny SMBus temperature sensor with

±1.5

SOT23-6, the EMC1001 provides an accurate, low-cost,

low-current, solution for critical temperature monitoring

in a PC or embedded applications.

The EMC1001 generates two separate interrupts with

operates as a thermostat with programmable threshold

as a maskable SMBus alert

with

programmable

output. An efficient fan control system can be created

since this output may be used to control a fan.

A power down mode extends battery life in portable

applications.

Each part number may be configured to respond to one

of four separate SMBus addresses.

Features

Self Contained Internal Temperature Sensor

—0.25

°C resolution

—

±1.5°C Accuracy 40°C to 85°C

Small 6-lead SOT lead-free RoHS compliant

packages

SMBus address selected by external resistor

—

Select 1 of 4 per package, 8 addresses available

One-shot Command during standby

Low Power, 3.0V to 3.6V Supply

—

47uA at 0.0625 Conversions per Second (Typical)

—

4.8uA in Standby (Typical)

SMBus 2.0 Compliant interface

Programmable temperature conversion rate

Applications

Desktop and Notebook Computers

Thermostats

Smart batteries

Industrial/Automotive

Other Electronic Systems

Simplified Block Diagram

EMC1001

Internal

Temp Diode

Switching

Current

SMCLK

High Limit Registers

THERM Hysteresis Register

Low Limit Registers

THERM Limit Register

Address Pointer Register

Conversion Rate Register

Interrupt Masking

Status Register

Configuration Register

Temperature

Register

ALERT

SMDATA

10-bit

delta-sigma

ADC

THERM