TCN75-5.0MPA データシートの表示（PDF） - TelCom Semiconductor, Inc

部品番号

コンポーネント説明

メーカー

TCN75-5.0MPA

2-WIRE SERIAL TEMPERATURE SENSOR AND THERMAL MONITOR

TelCom Semiconductor, Inc 

2-WIRE SERIAL TEMPERATURE

SENSOR AND THERMAL MONITOR

PRELIMINARY INFORMATION

TTCCNN755

2-WIRE SERIAL TEMPERATURE SENSOR AND THERMAL MONITOR

FEATURES

s Solid State Temperature Sensing; 2°C Accuracy (Typ.)

s Operates from – 55°C to +125°C

s Operating Range ..................................... 2.7V - 5.5V

s Programmable Trip Point and Hysteresis with

Power-up Defaults

s Standard 2-Wire Serial Interface

s Thermal Event Alarm Output Functions as

Interrupt or Comparator / Thermostat Output

s Up to 8 TCN75's May Share the Same Bus

s Shutdown Mode for Low Standby Power

Consumption

s Low Power ......................... 250µA (Typ.) Operating

1µA (Typ.) Shutdown Mode

s 8-Pin Plastic DIP, SOIC, and MSOP Packaging

TYPICAL APPLICATIONS

s Thermal Protection for High Performance CPU's

s Solid-State Thermometer

s Fire/Heat Alarms

s Thermal Management in Electronic Systems:

Computers

Telecom Racks

Power Supplies / UPS* / Amplifiers

s Copiers / Office Electronics

s Consumer Electronics

s Process Control

GENERAL DESCRIPTION

The TCN75 is a serially programmable temperature

sensor that notifies the host controller when ambient tem-

FUNCTIONAL BLOCK DIAGRAM

Temp

Sensor

VDD

9 Bit

∆Σ

A/D

Converter

Control

Logic

Register Set

Configuration

Temperature

TSET

THYST

INT/CMPTR

SDA

SCL

A0

A1

A2

Two Wire

Serial Port

Interface

TCN75

perature exceeds a user-programmed setpoint. Hysteresis

is also programmable. The INT/CMPTR output is program-

mable as either a simple comparator for thermostat opera-

tion or as a temperature event interrupt. Communication

with the TCN75 is accomplished via a two-wire bus that is

compatible with industry standard protocols. This permits

reading the current temperature, programming the setpoint

and hysteresis, and configuring the device.

The TCN75 powers up in Comparator Mode with a

default setpoint of 80°C with 5°C hysteresis. Defaults allow

independent operation as a stand-alone thermostat. A shut-

down command may be sent via the 2-wire bus to activate

the low-power standby mode. Address selection inputs

allow up to eight TCN75's to share the same 2-wire bus for

multi-zone monitoring.

All registers can be read by the host and the INT/

CMPTR output's polarity is user programmable. Both polled

and interrupt driven systems are easily accommodated.

Small physical size, low installed cost, and ease of use make

the TCN75 an ideal choice for implementing sophisticated

system management schemes.

ORDERING INFORMATION

Part No.

Supply

Voltage (V) Package

Junction

Temp. Range

TCN75-3.3MOA 3.3

TCN75-5.0MOA 5.0

TCN75-3.3MPA 3.3

TCN75-5.0MPA 5.0

TCN75-3.3MUA 3.3

TCN75-5.0MUA 5.0

8-Pin SOIC

8-Pin SOIC

8-Pin PDIP

8-Pin PDIP

8-MSOP

8-MSOP

– 55°C to +125°C

– 55°C to +125°C

– 55°C to +125°C

– 55°C to +125°C

– 55°C to +125°C

– 55°C to +125°C

PIN CONFIGURATIONS

8-Pin Plastic DIP

SDA 1

SCL 2

8 VDD

7 A0

INT/CMPTR 3

GND 4

SDA 1

SCL 2

INT/CMPTR 3

GND 4

TCN75MPA

8-Pin SOIC

TCN75MOA

6 A1

8-Pin MSOP

5 A2

SDA 1

8 VDD

SCL 2

INT/CMPTR 3

TCN75MUA

7 A0

6 A1

8 VDD

GND 4

5 A2

7 A0

6 A1

5 A2

TCN75-04 6/16/97 TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices1.

Share Link: