• STCN75DS2F
  • STCN75DS2F

STCN75DS2F

Digital temperature sensor IC, thermal watchdog, high-precision
Operating Temp Min Celsius -55.0
Operating Temp Max Celsius 125.0
Operating Voltage Min Volt 2.7
Operating Voltage Max Volt 5.5
ECCN US EAR99
ECCN EU NEC
Packing Type Tape And Reel
RoHs compliant Ecopack2
Grade Industrial
Package Name MiniSO-8
Description

The STCN75 is a high-precision digital CMOS temperature sensor IC with a sigma-delta temperature-to-digital converter and an I2C-compatible serial digital interface. It is targeted for general applications such as personal computers, system thermal management, electronics equipment, and industrial controllers, and is packaged in the industry-standard 8-lead TSSOP package.

The device contains a bandgap temperature sensor and 9-bit ADC which monitor and digitize the temperature to a resolution up to 0.5 °C. The STCN75 is typically accurate to (±3 °C - max) over the full temperature measurement range of –55 °C to 125 °C with ±2 °C accuracy in the –25 °C to +100 °C range. The STCN75 is pin-for-pin and software compatible with the TCN75.

The STCN75 is specified for operating at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the supply current is typically (125 μA).

The onboard sigma-delta analog-to-digital converter (ADC) converts the measured temperature to a digital value that is calibrated in degrees centigrade; for Fahrenheit applications a lookup table or conversion routine is required.

The STCN75 is factory-calibrated and requires no external components to measure temperature.

Key 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:125 μA (typ)
  • No external components required
  • 2-wire I2C/SMBus-compatible serial interface
    • Selectable bus address allows connection of up to eight devices on the bus
  • Wide power supply range - operating voltage range: 2.7 V to 5.5 V
  • Conversion time is 45 ms (typ)
  • Programmable temperature threshold and hysteresis set points
  • Pin- and software-compatible with TCN75 (drop-in replacement)
  • Power-up defaults permit standalone operation as a thermostat
  • Shutdown mode to minimize power consumption
  • Output pin (open drain) can be configured for interrupt or comparator/thermostat mode (dual purpose event pin)
  • MSOP8 (TSSOP8) package
  • STCN75DS2F

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