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TCN75, TCN75-3.3, TCN75-3.3MDA

Table of contents:
Info of TCN75
Info of TCN75-3.3
Info of TCN75-3.3MDA

TCN75, TCN75-3.3, TCN75-3.3MDA Selling Leads, Datasheet

MFG:MICREL Package Cooled:SOP8S D/C:2007+

TCN75, TCN75-3.3, TCN75-3.3MDA Datasheet download

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Part Number: TCN75

MFG: MICREL

Package Cooled: SOP8S

D/C: 2007+

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TCN75 General Description

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 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.

TCN75 Maximum Ratings

Parameter Name	Value
Typical Accuracy (°)	0.5
Max Input/ Supply Current (A)	1000
Max. Accuracy @ 25° (°)	3
Temp. Range (°C)	-55 to +125
Operating Voltage Range (V)	+2.7 to +5.5
Device Description	Serial Output Temp Sensor

TCN75 Features

` Solid State Temperature Sensing; 2 Accuracy (Typ.)
` Operates from 55 to +125
` 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
` Low Power......................... 250mA (Typ.) Operating 1mA (Typ.) Shutdown Mode
` 8-Pin Plastic DIP, SOIC, and MSOP Packaging

TCN75 Typical Application

· Thermal Protection for High Performance CPU's
· Solid-State Thermometer
· Fire/Heat Alarms
· Thermal Management in Electronic Systems: Computers Telecom Racks Power Supplies / UPS* / Amplifiers
· Copiers / Office Electronics
· Consumer Electronics
· Process Control

TCN75 Connection Diagram

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