Datasheet > DS1775R/TR6

DS1775R/TR6

更新时间： 2022-11-26 02:05:28

品牌	Logo	应用领域
达拉斯 - DALLAS		监控
页数	文件大小	规格书
13页	233K
描述
SOT23-5 Digital Thermometer and Thermostat

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数据手册

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DS1775R/TR6 数据手册

PRODUCT PREVIEW

PRELIMINARY

DS1775

SOT23-5 Digital Thermometer

and Thermostat

www.dalsemi.com

FEATURES

§ Temperature measurements require no

external components

PIN ASSIGNMENT

§ Measures temperatures from –55°C to

+125°C. Fahrenheit equivalent is –67°F to

257°F

§ Thermometer accuracy is ±2.0°C

§ Thermometer resolution is configurable from

9 to 12 bits (0.5°C to 0.0625°C resolution)

§ Thermostat settings are user definable

§ Data is read from/written to via a 2–wire

serial interface

§ Wide power supply range (2.7V – 5.5V)

§ Software compatible with DS75 2–Wire

Thermal Watchdog in thermometer mode

§ Space–conscious SOT23–5 package with

low thermal time constant

SCL

SDA

GND

O.S.

V_DD

DS1775R

SOT23-5

PIN DESCRIPTION

GND

SCL

SDA

V_DD

Ground

2–Wire Serial Clock

2–Wire Serial Data Input/Output

Power Supply Voltage

Thermostat Output Signal

O.S.

ORDERING INFORMATION

Part Number

Address

000

Part Number

DS1775R/TR4

DS1775R/TR5

DS1775R/TR6

DS1775R/TR7

Address

100

101

110

111

DS1775R/TRL

DS1775R/TR1

DS1775R/TR2

DS1775R/TR3

001

010

011

* "R" denotes SOT 23-5 Package

DESCRIPTION

The DS1775 SOT23-5 Digital Thermometer and Thermostat provides temperature readings which

indicate the temperature of the device. Thermostat settings and temperature readings are all

communicated to/from the DS1775 over a simple 2–wire serial interface. No additional components are

required; the device is truly a “temperature–to–digital” converter.

For applications that require greater temperature resolution, the user can adjust the readout resolution

from 9 to 12 bits. This is particularly useful in applications where thermal runaway conditions must be

detected quickly.

The open–drain thermal alarm output, O.S., becomes active when the temperature of the device exceeds a

user–defined temperature T_OS. The number of consecutive faults required to set O.S. active is

configurable by the user. The device can also be configured in the interrupt or comparator mode, to

customize the method which clears the fault condition.

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