Product Summary

The TC74W74F is a Tiny Serial Digital Thermal Sensor. It is particularly suited for low cost and small formfactor applications. Temperature data is converted from the onboard thermal sensing element and made available as an 8-bit digital word. Small size, low installed cost, and ease of use make the TC74W74F an ideal choice for implementing thermal management in a variety of systems. The applications of the TC74W74F include Thermal Protection for Hard Disk Drives and other PC Peripherals, PC Card Devices for Notebook Computers, Low Cost Thermostat Controls, Power Supplies, Thermistor Replacement.

Parametrics

TC74W74F absolute maximum ratings: (1)Supply Voltage (VDD): +6V; (2)Voltage On Any Pin: (GND – 0.3V) to (VDD + 0.3V); (3)Current On Any Pin: ±50mA; (4)Operating Temperature (TA): See Below; (5)Storage Temperature (TSTG): -65℃ to +150℃.

Features

TC74W74F features: (1)Digital Temperature Sensing in SOT-23-5 Package; (2)Outputs Temperature as an 8-Bit Digital Word; (3)Simple Serial Port Interface; (4)Solid-State Temperature Sensing: ±2℃ Accuracy from +25℃ to +85℃, ±3℃ Accuracy from 0℃ to +125℃; (5)3.0 and 5.5V Operating Range; (6)LowPower: 200μA Operating, 5μA Standby Mode.

Diagrams

TC74W74F block diagram