MCP9808 datasheet(1/52 Pages) MICROCHIP

部件名	MCP9808

功能描述	짹0.5째C Maximum Accuracy Digital Temperature Sensor

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制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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DS25095A-page 1

MCP9808

Features

•Accuracy:

- ±0.25 (typical) from -40°C to +125°C

- ±0.5°C (maximum) from -20°C to 100°C

- ±1°C (maximum) from -40°C to +125°C

• User-Selectable Measurement Resolution:

- +0.5°C, +0.25°C, +0.125°C, +0.0625°C

• User-Programmable Temperature Limits:

- Temperature Window Limit

- Critical Temperature Limit

• User-Programmable Temperature Alert Output

• Operating Voltage Range: 2.7V to 5.5V

• Operating Current: 200 µA (typical)

• Shutdown Current: 0.1 µA (typical)

• 2-wire Interface: I2C™/SMBus Compatible

• Available Packages: 2x3 DFN-8, MSOP-8

Typical Applications

• General Purpose

• Industrial Applications

• Industrial Freezers and Refrigerators

• Food Processing

• Personal Computers and Servers

• PC Peripherals

• Consumer Electronics

• Handheld/Portable Devices

Temperature Accuracy

Description

Microchip

Technology

Inc.’s

MCP9808

digital

temperature sensor converts temperatures between

-20°C

and

+100°C

to

a

digital

word

with

±0.25°C/±0.5°C (typical/maximum) accuracy.

The MCP9808 comes with user-programmable registers

that

provide

flexibility

for

temperature

sensing

applications.

The

registers

allow

user-selectable

settings such as Shutdown or Low-Power modes and

the specification of temperature Alert window limits and

critical output limits. When the temperature changes

beyond the specified boundary limits, the MCP9808

outputs an Alert signal. The user has the option of setting

the Alert output signal polarity as an active-low or active-

high comparator output for thermostat operation, or as a

temperature Alert interrupt output for microprocessor-

based systems. The Alert output can also be configured

as a critical temperature output only.

This sensor has an industry standard 400 kHz, 2-wire,

SMBus/I2C compatible serial interface, allowing up to

eight or sixteen sensors to be controlled with a single

serial bus (see Table 3-2 for available Address codes).

These

features

make

the

MCP9808

ideal

for

sophisticated,

multi-zone,

temperature-monitoring

applications.

Package Types

0%

10%

20%

30%

40%

Temperature Accuracy (°C)

T

A = -20°C, 25°C, 85°C, 100°C

V

DD = 3.3V

854 units

8-Pin 2x3 DFN*

1

2

3

4

8-Pin MSOP

8

7

6

5

* Includes Exposed Thermal Pad (EP); see Table 3-1.

A1

A0

A2

SCL

Alert

1

2

3

4

8

7

6

5

GND

SDA

VDD

EP

9

SCL

Alert

GND

SDA

A1

A0

A2

VDD

±0.5°C Maximum Accuracy Digital Temperature Sensor

类似零件编号 - MCP9808

制造商	部件名	数据表	功能描述
Microchip Technology	MCP9808	2Mb / 44P	Analog & Interface Product Selector Guide 11/29/11
	MCP9808	2Mb / 44P	Analog and Interface Product Selector Guide 11/29/11
	MCP9808-E-MS	1Mb / 52P	0.5째C Maximum Accuracy Digital Temperature Sensor 08/02/11
	MCP9808-E/MC	1Mb / 52P	0.5째C Maximum Accuracy Digital Temperature Sensor 08/02/11
	MCP9808-E/MS	1Mb / 52P	0.5째C Maximum Accuracy Digital Temperature Sensor 08/02/11

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类似说明 - MCP9808

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