STDS75:Digital temperature sensor and thermal watchdog

The STDS75 is a high-precision CMOS (digital) temperature sensor IC with a delta-sigma analog-to-digital (ADC) 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 programmable 9- to 12-bit ADC which monitor and digitize the temperature to a resolution up to 0.0625 °C. The STDS75 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. At power-up, the STDS75 defaults to 9-bit resolution for software compatibility with the STLM75.

The STDS75 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 delta-sigma analog-to-digital converter (ADC) converts the measured temperature to a digital value that is calibrated in °C; for Fahrenheit applications a lookup table or conversion routine is required.

The STDS75 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 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 150 ms (max)
  • Programmable temperature threshold and hysteresis set points
  • Wide power supply range - operating voltage range: 2.7 V to 5.5 V
  • Pin- and software-compatible with DS75 (drop-in replacement)
  • 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)
  • MSOP8 (TSSOP8) package
产品规格
DescriptionVersionSize
DS5156: Digital temperature sensor and thermal watchdog9.0600 KB
应用手册
DescriptionVersionSize
AN2680: Fan speed controller based on STDS75 or STLM75 digital temperature sensor and ST72651AR6 MCU1.4125 KB
宣传册
DescriptionVersionSize
STTS752.2706 KB
MCUs Embedded Software
型号制造商Description
STSW-ST7055STFan speed controller based on STDS75 or STLM75 digital temperature sensor and ST72651AR6 MCU
样片和购买
型号PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STDS75DS2FMSOP/TSSOP 8Tape And Reel-55125--NECEAR99MALAYSIA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
STDS75DS2FMSOP/TSSOP 8IndustrialEcopack2md_e3-wspc-msoptssop-wspc-8-wspc-body3.00-wspc-pitch0.65_dcdsm6lacds-wspc-(stds75ds2f).pdf
md_e3-wspc-msoptssop-wspc-8-wspc-body3.xml
Digital temperature sensor and thermal watchdog STDS75
circuit_diagram_13297_thumbnail.png STDS75
Fan speed controller based on STDS75 or STLM75 digital temperature sensor and ST72651AR6 MCU STLM75
Digital temperature sensor and thermal watchdog STTS75
md_e3-wspc-msoptssop-wspc-8-wspc-body3.00-wspc-pitch0.65_dcdsm6lacds-wspc-(stds75ds2f).pdf STDS75
md_e3-wspc-msoptssop-wspc-8-wspc-body3.xml STM6904
STDS75