STCN75

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Digital temperature sensor IC, thermal watchdog, high-precision

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Product overview

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.
  • All 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

Circuit Diagram

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EDA Symbols, Footprints and 3D Models

STMicroelectronics - STCN75

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Quality and Reliability

Part Number Marketing Status Package RoHS Compliance Grade Material Declaration**
STCN75DS2F
Active
MiniSO-8 Ecopack2

STCN75DS2F

Package:

MiniSO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

MiniSO-8

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
STCN75DS2F No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel MiniSO-8 -55 125 MALAYSIA

STCN75DS2F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MiniSO-8

Operating Temperature (°C)

(min)

-55

(max)

125

Budgetary Price (US$)* / Qty

Country of Origin

MALAYSIA

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors