DIO1412

The DIO1412 is high-precision sensor chip for temperature monitoring in laptops, servers, and industrial applications. The DIO1412 achieves an inaccuracy of ±1°C even in complex application environments by utilizing advanced methods, including Resistance Error Correction (REC), Dynamic Element Matching, Automatic BJT Type Detection, Automatic Beta Detection, and Compensation. The DIO1412 monitors one external diode temperature and one internal diode temperature. The DIO1412 is compatible with the System Management Bus (SMBus) and Inter-Integrated Circuit (I2C) communication protocol. The DIO1412 can operate at ambient temperatures of -40°C ~ 125°C and have programmable High, Low, and Therm Limit for overtemperature alarm. In addition, the device can also detect erroneous states.

Product attributes

• Wide supply voltage range: 3.0 V to 3.6 V
• One external diode temperature monitor

− Maximum inaccuracy of ±1°C (20 ~ 110°C)

− 12-bit resolution: 0.0625°C

• One internal diode temperature monitor

− Maximum inaccuracy of ±1°C (20 ~ 110°C)

− 12-bit resolution: 0.0625°C

• Resistance Error Correction
• Automatic BJT Type Detection
• Programmable High Limit and Low Limit (/ALERT pin)
• Programmable Therm Limit (/THERM/ADDR pin)
• Programmable SM Bus (or I2C) address

− 1001_100(r/ _w): DIO1412A

− Selectable by /THERM /ADDR pull-up resistance: DIO1412C

• Operating temperature range: -40°C to 125°C