MIC281-6YM6TR Micrel Semiconductor, MIC281-6YM6TR Datasheet

MIC281-6YM6TR

Manufacturer Part Number

MIC281-6YM6TR

Description

Manufacturer

Micrel Semiconductor

Datasheet

1.MIC281-6YM6TR.pdf (12 pages)

Specifications of MIC281-6YM6TR

Date_code

10+

Packing_info

SOT-163

Current page: 1 of 12
Download datasheet (172Kb)

General Description

The MIC281 is a digital thermal sensor capable of measuring

the temperature of a remote PN junction. It is optimized for

applications favoring low cost and small size. The remote

junction may be an inexpensive commodity transistor, e.g.,

2N3906, or an embedded thermal diode such as found in

Intel Pentium* II/III/IV CPUs, AMD Athlon* CPUs, and Xilinx

Virtex* FPGAs.

The MIC281 is 100% software and hardware backward com-

patible with the MIC280 and features the same industry-leading

noise performance and small size. The advanced integrating

A/D converter and analog front-end reduce errors due to noise

for maximum accuracy and minimum guardbanding.

A 2-wire SMBus 2.0-compatible serial interface is provided for

host communication. The clock and data pins are 5V-tolerant

regardless of the value of V

lines low even if the device is powered down.

Superior performance, low power, and small size make the

MIC281 an excellent choice for cost-sensitive thermal man-

agement applications.

Typical Application

IttyBitty is a registered trademark of Micrel, Inc.

*All trademarks are the property of their respective owners.

November 2004

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

SERIAL BUS

. They will not clamp the bus

HOST

3.3V

10k

pull-ups

MIC281 Typical Application

DATA

CLK

MIC281

GND

VDD

Features

• Remote temperature measurement using embedded

• Accurate remote sensing

• Excellent noise rejection

• I

• SMBus timeout to prevent bus lockup

• Voltage tolerant I/Os

• Low power shutdown mode

• Failsafe response to diode faults

• 3.0V to 3.6V power supply range

• IttyBitty™ SOT23-6 Package

Applications

• Desktop, server and notebook computers

• Set-top boxes

• Game consoles

• Appliances

Low-Cost IttyBitty™ Thermal Sensor IttyBitty®

thermal diodes or commodity transistors

C and SMBus 2.0 compatible serial interface

±3°C max., 0°C to 100°C

0.1µF

2000pF

CPU DIODE

MIC281

REV 11/04

MIC281

Related parts for MIC281-6YM6TR

Related keywords

MIC281-6YM6TR datasheet
MIC281-6YM6TR data sheet
MIC281-6YM6TR pdf datasheet
MIC281-6YM6TR component
MIC281-6YM6TR part
MIC281-6YM6TR distributor
MIC281-6YM6TR RoHS
MIC281-6YM6TR datasheet download