Download Datasheets TCN75 Device 
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Home - Analog & Interface Products - Thermal Management - Serial Output - TCN75 Device, download datasheet

Download Datasheets TCN75 Device


The TCN75 is a serially programmable temperature sensor that notifies the host controller when ambient temperature exceeds a user-programmed setpoint. Hysteresis is also programmable. The INT/CMPTR output is programmable as either a simple comparator for thermostat operation 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 80C with 5C 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 sophis-ticated system management schemes.

Datasheet and Other Documentation

Detailed Content

Lit. Number

Download

 

TCN75 Datasheet

21490a

Download TCN75 Datasheet

Status

In Production

Specification Chart

Output Type

Typical Accuracy (C)

Maximum Accuracy @ 25C

Maximum Temperature Range (C)

Vcc Range (V)

Max. Supply Current (A)

Serial Output

0.5

2

-55 to +125

+2.7 to +5.5

1000

Additional Features

Solid State Temperature Sensing; 0.5C Accuracy (Typ.)
Operates from 55C to +125C
Operating Range 2.7V - 5.5V
Programmable Trip Point and Hysteresis with Power-up Defaults
Standard 2-Wire Serial Interface
Thermal Event Alarm Output Functions as Interrupt or Comparator / Thermostat Output
Up to 8 TCN75's May Share the Same Bus
Shutdown Mode for Low Standby Power Consumption
5V Tolerant I/O at VDD = 3V
Low Power..... 250A (Typ.) Operating 1A (Typ.) Shutdown Mode

Package Options

8 MSOP(MS), 8 SOIC(S)



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