STCN75：Digital temperature sensor and thermal watchdog
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 I2
C/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
产品规格
| Description | Version | Size |
|---|---|---|
| DS5163: Digital temperature sensor and thermal watchdog | 9.0 | 566 KB |
宣传册
| Description | Version | Size |
|---|---|---|
| STTS75 | 2.2 | 706 KB |
样片和购买
| 型号 | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Unit Price (US$) * | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|---|---|---|---|---|---|---|---|---|
| STCN75DS2F | MSOP/TSSOP 8 | Tape And Reel | -55 | 125 | - | - | NEC | EAR99 | MALAYSIA |
质量和可靠性
| 型号 | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| STCN75DS2F | MSOP/TSSOP 8 | Industrial | Ecopack2 |
- circuit_diagram_13307_thumbnail.png STCN75
- Digital temperature sensor and thermal watchdog STTS75
- STCN75
