TC74 Series

Tiny Serial Digital Thermal Sensor

Catalog

Tiny Serial Digital Thermal Sensor

Part	Resolution	Supplier Device Package	Test Condition [Max]	Test Condition [Max]	Test Condition [Min]	Test Condition [Min]	Sensor Type	Output Type	Mounting Type	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Accuracy - Highest (Lowest)	Accuracy - Highest (Lowest)	Voltage - Supply [Min]	Voltage - Supply [Max]	Features	Sensing Temperature - Local [Max]	Sensing Temperature - Local [Min]
Microchip Technology TC74A4-3.3VCTTR
Microchip Technology TC74A1-5.0VCTTR
Microchip Technology TC74A3-3.3VAT
Microchip Technology TC74A3-5.0VCTTR
Microchip Technology TC74A1-3.3VAT	7 b	TO-220-5	125 °C	85 °C	0 °C	25 °C	Digital, Local	I2C/SMBus	Through Hole	TO-220-5	125 °C	-40 °C	2 °C	3 °C	2.7 V	5.5 V	Standby Mode	125 °C	-40 °C
Microchip Technology TC74A5-5.0VAT	7 b	TO-220-5	125 °C	85 °C	0 °C	25 °C	Digital, Local	I2C/SMBus	Through Hole	TO-220-5	125 °C	-40 °C	2 °C	3 °C	2.7 V	5.5 V	Standby Mode	125 °C	-40 °C
Microchip Technology TC74A2-5.0VAT
Microchip Technology TC74A5-3.3VAT	7 b	TO-220-5	125 °C	85 °C	0 °C	25 °C	Digital, Local	I2C/SMBus	Through Hole	TO-220-5	125 °C	-40 °C	2 °C	3 °C	2.7 V	5.5 V	Standby Mode	125 °C	-40 °C
Microchip Technology TC74A0-5.0VCTTR
Microchip Technology TC74A1-5.0VAT	7 b	TO-220-5	125 °C	85 °C	0 °C	25 °C	Digital, Local	I2C/SMBus	Through Hole	TO-220-5	125 °C	-40 °C	2 °C	3 °C	2.7 V	5.5 V	Standby Mode	125 °C	-40 °C

Catalog

Tiny Serial Digital Thermal Sensor

Key Features

• * Digital Temperature Sensing in SOT-23-5 Package

• * Outputs Temperature as an 8-Bit Digital Word

• * Simple Serial Port Interface

• * ±2°C Accuracy from +25°C to +85°C

• * ±3°C Accuracy from 0°C to +125°C

• * Supply Voltage of 2.7V to 5.5V

• * 200 µA (typ.) Operating Current

• * 5 µA (typ.) Standby Mode Current

Description

TC74 is a serially accessible digital temperature sensor particularly suited for low cost and small form-factor applications. Temperature data is converted from the on-board thermal sensing element and made available as an 8-bit digital word. Communication with the TC74 is accomplished via a simple 2-wire SMBus/I2C™-compatible serial port. This bus also can be used to implement multi-drop/multi-zone monitoring. The SHDN bit in the CONFIG register can be used to activate the low-power Standby mode. Temperature resolution is 1°C. Conversion rate is a nominal 8 samples/sec. Power consumption in only 200 µA (5 µA Standby). Small size, low installed cost and ease of use make the TC74 an ideal choice for implementing thermal management in a variety of systems.