The SGM452B is an industry standard digital temperature sensor which integrates sigma-delta analog-to-digital converter (ADC) and I2C interface. This device is accurate to ±1.2℃ (MAX) in the range of -55℃ to +125℃. The SGM452B offers 12-bit digital temperature readings.
The power supply voltage of the device is from 2.7V to 5.5V. I2C interface is used to communicate with SGM452B devices and it operates up to 400kHz. There are three address pins of the devices to support eight SGM452B at most on the same I2C bus. There is an appropriative over-temperature output with programmable limit and hysteresis on SGM452B. The programmable fault tolerance of the output can define the number of consecutive error conditions that must occur before OS is activated. The wide temperature, wide power supply range and I2C interface make the SGM452B ideal for plenty of applications in which thermal management is critical for performance, such as wireless base stations, notebook computers, personal computers, etc.
The SGM452B is available in Green SOIC-8 and MSOP-8 packages and operates over an ambient temperature range of -55℃ to +125℃.
- Power Supply Voltage Range: 2.7V to 5.5V
- Temperature Accuracy:
-55℃ to +125℃: ±1.2℃ (MAX) - Low Quiescent Current: 49μA (TYP)
- Shutdown Mode Current: 0.4μA (TYP)
- Without External Components
- Minimize Power Consumption through Shutdown Mode
- Support Eight SGM452B Devices in One Serial Bus
- Power-Up Defaults Can be Operated Stand-Alone as Thermostat
- Available in Green SOIC-8 and MSOP-8 Packages
Thermal Management in Computing System
Telecom Infrastructure Equipment
Environmental Monitoring
