TC74 Datasheet

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  TC74 Datasheet

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.

Parameter Name  Value
Typical Accuracy (°)  0.5
Max Input/ Supply Current (µA)  350
Max. Accuracy @ 25° (°)  2
Temp. Range (°C)  -40 to +125
Operating Voltage Range (V)  2.7 to 5.5
Device Description  Serial Output Temp Sensor

     Features
Digital Temperature Sensing in SOT-23-5 Package
Outputs Temperature as an 8-Bit Digital Word
Simple Serial Port Interface
Solid State Temperature Sensing:
   ±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
Low Power:
   200 µA (typ.) Operating Current
   5 µA (typ.) Standby Mode Current


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