MIC384.0YM Micrel Semiconductor, MIC384.0YM Datasheet

MIC384.0YM

Manufacturer Part Number

MIC384.0YM

Description

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC384.0YM.pdf (22 pages)

Specifications of MIC384.0YM

Case

SOP8

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General Description

The MIC384 is a versatile digital thermal supervisor capable

of measuring temperature using its own internal sensor and

two inexpensive external sensors or embedded silicon diodes

such as those found in the Intel Pentium III* CPU. A 2-wire

serial interface is provided to allow communication with either

pin can be used as either an over-temperature alarm or a

thermostatic control signal.

Interrupt mask and status bits are provided for reduced soft-

ware overhead. Fault queues prevent nuisance tripping due

to thermal or electrical noise. A programmable address pin

permits two devices to share the bus. (Alternate base ad-

dresses available – contact Micrel.) Superior performance,

low power and small size makes the MIC384 an excellent

choice for multiple zone thermal management applications.

*SMBus and Pentium III are trademarks of Intel Corporation.

**I

Typical Application

September 2005

MIC384

Ordering Information

* The least-signiﬁcant bit of the slave address is determined by the state of the A0 pin.

C** or SMBus* masters. The open-drain interrupt output

Standard

MIC384-0BM

MIC384-1BM

MIC384-2BM

MIC384-3BM

MIC384-0BMM

MIC384-1BMM

MIC384-2BMM

MIC384-3BMM

C is a trademark of Philips Electronics, N.V.

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Part Number

Pb-Free

MIC384-0YM

MIC384-1YM

MIC384-2YM

MIC384-3YM

MIC384-0YMM

MIC384-1YMM

MIC384-2YMM

MIC384-3YMM

SERIAL BUS

FROM

HOST

3.3V

3-Channel SMBus Temperature Measurement System

pull-ups

3 × 10k

Base Address (*) Junction Temp. Range

100 100x

100 101x

100 110x

100 100x

100 101x

100 110x

100 111x

DATA

CLK

/INT

GND

MIC384

VDD

Features

• Measures Local and Two Remote Temperatures

• 2-Wire SMBus-compatible Interface

• Programmable Thermostat Settings for All Three Zones

• Open-Drain Interrupt Output Pin

• Interrupt Mask and Status Bits

• Fault Queues to Prevent Nuisance Tripping

• Low Power Shutdown Mode

• Failsafe response to diode faults

• 2.7V to 5.5V Power Supply Range

• 8-Lead SOIC and MSOP Packages

Applications

• Desktop, Server and Notebook Computers

• Power Supplies

• Test and Measurement Equipment

• Wireless Systems

• Networking/Datacom Hardware

-55°C to +125°C

0.1µF

Three-Zone Thermal Supervisor

2200pF

8-Lead MSOP

8-Lead SOIC

MIC384

Package

REMOTE

DIODE

REMOTE

DIODE

Contact Factory

Availability

MIC384

Micrel

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