Digital temperature sensor and thermal watchdog
STTS75
Digital temperature sensor and thermal watchdog
Features
■ Measures temperatures from –55 °C to +125 °C (–67 °F ...
Description
STTS75
Digital temperature sensor and thermal watchdog
Features
■ Measures temperatures from –55 °C to +125 °C (–67 °F to +257 °F) – ±0.5 °C (typ) accuracy – ±2 °C (max) accuracy from –25 °C to +100 °C
■ Low operating current: 75 µA (typ)
■ No external components required ■ 2-wire I2C/SMBus-compatible serial interface
– Selectable serial bus address allows connection of up to eight devices on the same bus
■ Thermometer resolution is user-configurable from 9 (default) to 12 bits (0.5 °C to 0.0625 °C)
■ 9-bit conversion time is 45 ms (typ)
■ Programmable temperature threshold and hysteresis set points
■ Wide power supply range-operating voltage range: 2.7 V to 5.5 V
■ Power saving one-shot temperature measurement
■ Power-up defaults permit standalone operation as thermostat
■ Shutdown mode to minimize power consumption
■ Separate open drain output pin operates as an interrupt or comparator/thermostat output (dual purpose event pin)
■ Packages: – SO8 – MSOP8 (TSSOP8)
SO8 MSOP8 (TSSOP8)
June 2010
Doc ID 13298 Rev 11
1/41
www.st.com
1
Contents
Contents
STTS75
1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Serial communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Temperature sensor output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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