BU9817FV Datasheet, PDF (15/15 Pages) Rohm – 4-channel temperature sensor IC for PCs with I2C BUS interface

Multimedia ICs
BU9817FV
!Explanation for external components
(1) AD input pin (example when used as a temperature sensor)
To the AD input pin, input a voltage with divided resistance from a resistor and NTC thermistor. For the sensor to
measure the temperature, the NTC thermistor is used. The thermistor is a p-type semiconductor and as the temperature
increases, the resistance value becomes lower. In other words, the resistance temperature coefficient is negative,
and so the AD input pin voltage temperature characteristics are also negative.
VCC
ADx
BU9817FV
Put nearby BU9817FV
GND is required common and stability.
NTC thermistor
Put nearby measured object
!External dimensions (Units : mm)
5.0 ± 0.2
14
8
1
7
0.65
0.22 ± 0.1 0.3Min.
0.1
SSOP-B14