 Features

 AEC-Q100 qualified:

− Device ambient temperature:

-40°C ≤ TA ≤ 125°C

− Device junction temperature:

-40°C ≤ TJ ≤ 150°C

 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 SMBus (or I2C) address

− 1001_100(r/

_w

): DIA1412A

− Selectable by

______

THERM /ADDR pull-up

resistance: DIA1412C

 Description

The DIA1412 is a high-precision sensor chip for

temperature monitoring in automotive sub-systems.

The DIA1412 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 DIA1412 monitors one external diode

temperature and one internal diode temperature. The

DIA1412 is compatible with the System Management

Bus (SMBus) and Inter-Integrated Circuit (I2C)

communication protocol.

The DIA1412 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.

 Applications

 Automotive ADAS system

 Automotive infotainment system

 Processor temperature monitoring