Datasheet > NCT218

NCT218

更新时间： 2024-11-25 01:15:31

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
19页	160K
描述
Low Voltage, High Accuracy Temperature Monitor with I2C Interface

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中文翻译

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数据手册

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NCT218 数据手册

NCT218

Low Voltage, High

Accuracy Temperature

Monitor with I²C Interface

The NCT218 is a dual−channel digital thermometer and

undertemperature/overtemperature alarm, intended for use in thermal

management systems requiring low power and size. The NCT218

operates over a supply range of 1.4 V to 2.75 V making it possible to

use it in a wide range of applications including low power devices.

The NCT218 can measure the temperature of a remote thermal diode

accurate to 1°C and the ambient temperature accurate to 1.75°C.

The device operates over a wide temperature range of −40°C to

+125°C.

http://onsemi.com

MARKING

DIAGRAMS

DFN8

MT SUFFIX

CASE 511BU

T2 MG

The NCT218 includes series resistance cancellation, where up to

500 W (typical) of resistance in series with the temperature monitoring

diode can be automatically cancelled from the temperature result,

allowing noise filtering. The NCT218 has a configurable ALERT

output and overtemperature shutdown THERM pin.

WLCSP8

CASE 567DH

NCT218

AYWW

= Date Code

= Assembly year

= Work Week

Communication with the NCT218 is accomplished via the I C

interface which is compatible with industry standard protocols.

Through this interface the NCT218s internal registers may be

accessed. These registers allow the user to read the current

temperature from both the local (ambient) and remote channels,

change the configuration settings and adjust each channels limits.

An ALERT output signals when the on−chip or remote temperatures

are out of range. The THERM output is a comparator output that can

be used to shut down the system if it exceeds the programmed limit.

The ALERT output can be reconfigured as a second THERM output, if

required.

= Pb−Free Device

(Note: Microdot may be in either location)

PIN ASSIGNMENTS

SCL

D+

D−

SDA

ALERT/THERM2

GND

THERM

DFN8

(Top View)

Features

• Small DFN Package

• On−Chip and Remote Temperature Sensor

• Low Voltage Operation: 1.4 V to 2.75 V

• Low Quiescent Current:

♦ 44 mA Normal Mode (max)

♦ 20 mA Shutdown (max)

SDA

GND

D+

D−

• Power Saving Shutdown Mode

ALERT/

THERM2

• Operating Temperature Range of −40°C to 125°C

• Series Resistance Cancellation up to 500 W

• Low D− bias for Operation with Low Voltage Processors

• 2−wire I C Serial Interface

• Programmable Over/Undertemperature Limits

• These are Pb−Free Devices

WLCSP8

(Top View)

Applications

• Smart Phones, Tablet PCs, Satellite Navigation, Smart Batteries

ORDERING INFORMATION

See detailed ordering and shipping information on page 16 of

this data sheet.

Publication Order Number:

December, 2013 − Rev. 2

NCT218/D

12 3 4 5 6 7...19

中文翻译

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