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BU9817FV Datasheet

  • BU9817FV

  • 4-channel temperature sensor IC for PCs with I2C BUS interfa...

  • 105.32KB

  • 15頁

  • ROHM

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BU9817FV
Multimedia ICs
4-channel temperature sensor IC for
PCs with I
2
C BUS interface
BU9817FV
The BU9817FV is a 4-channel, 8-bit, A / D converter / overvoltage detector that is perfect for temperature sensors with
built-in I
2
C BUS interfaces. The host can access the BU9817FV anytime for the voltage data.
!Applications
Notebook computers, desktop computers, household
electric appliances
!Features
1) By attaching a thermistor, a maximum four-channel
temperature sensor is possible.
2) Can set comparison voltages independently.
3) Built-in I
2
C BUS interface.
4) Detection level and operating mode settings are pro-
grammable.
5) Extremely low operating current perfect for portable
equipment.
6) Operating voltage of V
DD
= 3V to 5.5V.
!
Absolute maximum ratings
(Ta = 25擄C)
Parameter
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
Voltage applied to pins
Symbol
V
DD
Pd
Topr
Tstg
V
IN
Limits
7.0
350
鈥?15 ~ + 75
鈥?55 ~ +125
GND 鈥?0.5 ~ V
DD
+ 0.5
Unit
V
mW
藲C
藲C
V
* Reduced by 3.5mW for each increase in Ta of 1藲C over 25藲C.
!
Recommended operating conditions
(Ta = 25擄C)
Parameter
Operating power supply voltage
Symbol
V
DD
Min.
3.0
Typ.
鈥?/div>
Max.
5.5
Unit
V
Note) I
2
C BUS is a registered trademark philips.

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