MIC281-5YM6 datasheet, PDF - EEWORLD Datasheet

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MIC281-5YM6: DescriptionLow-Cost IttyBitty Thermal Sensor IttyBitty; CategoryAnalog mixed-signal IC The signal circuit; File Size171KB，12 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com; Environmental Compliance

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MIC281-5YM6 Overview

Low-Cost IttyBitty Thermal Sensor IttyBitty

MIC281-5YM6 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Microchip
package instruction	LEAD FREE, SOT-23, 6 PIN
Reach Compliance Code	compli
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT
JESD-30 code	R-PDSO-G6
JESD-609 code	e3
length	2.9 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	6
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.45 mm
Maximum supply voltage (Vsup)	3.6 V
Minimum supply voltage (Vsup)	3 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
Temperature level	MILITARY
Terminal surface	MATTE TIN
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	1.625 mm

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MIC281

Micrel

MIC281

Low-Cost IttyBitty™ Thermal Sensor IttyBitty®

REV 11/04

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

. They will not clamp the bus

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.

Features

• Remote temperature measurement using embedded

thermal diodes or commodity transistors

•

Accurate remote sensing

±3°C max., 0°C to 100°C

• Excellent noise rejection

• I

C and SMBus 2.0 compatible serial interface

• 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

Typical Application

3.3V

10k

pull-ups

SERIAL BUS

HOST

MIC281

DATA

CLK

VDD

GND

0.1µF

2000pF

CPU DIODE

MIC281 Typical Application

IttyBitty is a registered trademark of Micrel, Inc.

*All trademarks are the property of their respective owners.

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

November 2004

MIC281

MIC281-5YM6 Related Products

	MIC281-5YM6	MIC281-0YM6	MIC281-1YM6	MIC281-2YM6	MIC281-3YM6	MIC281-4YM6	MIC281-6YM6	MIC281-7YM6
Description	Low-Cost IttyBitty Thermal Sensor IttyBitty	Low-Cost IttyBitty Thermal Sensor IttyBitty	Low-Cost IttyBitty Thermal Sensor IttyBitty	Low-Cost IttyBitty Thermal Sensor IttyBitty	Low-Cost IttyBitty Thermal Sensor IttyBitty	Low-Cost IttyBitty Thermal Sensor IttyBitty	Low-Cost IttyBitty Thermal Sensor IttyBitty	Low-Cost IttyBitty Thermal Sensor IttyBitty
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to	conform to	conform to	conform to
package instruction	LEAD FREE, SOT-23, 6 PIN	LEAD FREE, SOT-23, 6 PIN	LEAD FREE, SOT-23, 6 PIN	LSSOP,	LEAD FREE, SOT-23, 6 PIN	LEAD FREE, SOT-23, 6 PIN	LSSOP,	LEAD FREE, SOT-23, 6 PIN
Reach Compliance Code	compli	compli	compli	compli	compli	compli	compli	compli
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT
JESD-30 code	R-PDSO-G6	R-PDSO-G6	R-PDSO-G6	R-PDSO-G6	R-PDSO-G6	R-PDSO-G6	R-PDSO-G6	R-PDSO-G6
JESD-609 code	e3	e3	e3	e3	e3	e3	e3	e3
length	2.9 mm	2.9 mm	2.9 mm	2.9 mm	2.9 mm	2.9 mm	2.9 mm	2.9 mm
Humidity sensitivity level	1	1	1	1	1	1	1	1
Number of functions	1	1	1	1	1	1	1	1
Number of terminals	6	6	6	6	6	6	6	6
Maximum operating temperature	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C
Minimum operating temperature	-55 °C	-55 °C	-55 °C	-55 °C	-55 °C	-55 °C	-55 °C	-55 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	LSSOP	LSSOP	LSSOP	LSSOP	LSSOP	LSSOP	LSSOP	LSSOP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	260	260	260	260	260	260	260
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.45 mm	1.45 mm	1.45 mm	1.45 mm	1.45 mm	1.45 mm	1.45 mm	1.45 mm
Maximum supply voltage (Vsup)	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V
Minimum supply voltage (Vsup)	3 V	3 V	3 V	3 V	3 V	3 V	3 V	3 V
Nominal supply voltage (Vsup)	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	YES	YES	YES	YES	YES	YES	YES	YES
Temperature level	MILITARY	MILITARY	MILITARY	MILITARY	MILITARY	MILITARY	MILITARY	MILITARY
Terminal surface	MATTE TIN	MATTE TIN	MATTE TIN	Matte Tin (Sn)	MATTE TIN	MATTE TIN	Matte Tin (Sn)	MATTE TIN
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	0.95 mm	0.95 mm	0.95 mm	0.95 mm	0.95 mm	0.95 mm	0.95 mm	0.95 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	40	40	40	40	40	40	40	40
width	1.625 mm	1.625 mm	1.625 mm	1.625 mm	1.625 mm	1.625 mm	1.625 mm	1.625 mm
Maker	Microchip	Microchip	Microchip	Microchip	Microchip	-	Microchip	-

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