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BU9817FV PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BU9817FV
기능 4-channel temperature sensor IC for PCs with I2C BUS interface
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BU9817FV 데이터시트, 핀배열, 회로
Multimedia ICs
BU9817FV
4-channel temperature sensor IC for
PCs with I2C 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 I2C 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 I2C 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 VDD = 3V to 5.5V.
!Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
VDD
7.0
Power dissipation
Pd
350
Operating temperature
Topr
– 15 ~ + 75
Storage temperature
Tstg
– 55 ~ +125
Voltage applied to pins
VIN GND – 0.5 ~ VDD + 0.5
* Reduced by 3.5mW for each increase in Ta of 1˚C over 25˚C.
Unit
V
mW
˚C
˚C
V
!Recommended operating conditions (Ta = 25°C)
Parameter
Operating power supply voltage
Symbol
VDD
Min.
3.0
Typ.
Max.
5.5
Unit
V
Note) I2C BUS is a registered trademark philips.




BU9817FV pdf, 반도체, 판매, 대치품
Multimedia ICs
!Input / output equivalent circuits
Pin. No
Pin name
Input / output circuits
1 SDA
BU9817FV
Function
I2C BUS serial data input / output.
When only input address accords slave
address (BU9817FV's), register data is
inputted or outputted.
2 SCL
3 OD1
4 OD2
5 OD3
6 OD4
7 GND
I2C BUS serial clock input.
Open-drain output corresponds to AD1 to
AD4 input.
Connect this pin a pull-up resister.
The pull-up resister should be above VDD /
4mA ().
Ground terminal.
8 CLK
Clock input for ADC block.
Input clock is 32.768kHz.
AD converter and voltage hysteresis
comparator use this clock to operate.

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BU9817FV 전자부품, 판매, 대치품
Multimedia ICs
!Measurement circuit
I2C BUS
Controller
820
820
820
820
1.2k
1.2k
1.2k
1.2k
1 14
2
3
4
5
6
7
Fig.1
13
12
11
10
9
8
BU9817FV
32.768kHz

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전력 반도체 판매 ( IGBT, TR 모듈, SCR, 다이오드 모듈 )

휴대전화 : 010-3582-2743


상호 : 아이지 인터내셔날

전화번호 : 051-319-2877, [ 홈페이지 ]



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부품번호상세설명 및 기능제조사
BU9817FV

4-channel temperature sensor IC for PCs with I2C BUS interface

Rohm
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BU9817FV

4-channel temperature sensor

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