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L5954 데이터시트(PDF) 11 Page - STMicroelectronics

부품명 L5954
상세설명  Multiple multifunction voltage regulator for car radio
PDF  15 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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L5954 데이터시트(HTML) 11 Page - STMicroelectronics

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L5954
Functional description
Doc 17717 Rev 1
11/15
3.1.4
Overvoltage
The IC will not operate if the BAT voltage reaches 27 V typ. or above.
Figure 3.
Definition of timing on the I2C bus.
Figure 4.
Typical application circuit.
3.1.5
Write mode
S = START condition - SDA goes from high to low while SCL is high
A = Acknowledge - the device being written to, pulls down on data line (SDA) during the
acknowledge clock pulse.
P = STOP condition - SDA goes from low to high while SCL is high.
tBUP
PS
P
SDA
SCL
Sr
tLOW
tR
tF
tHD;DAT
tHD;DAT
tSU;DAT
tSU;STA
tHD;STA
tSU;STO
D99AU1007
tSP
tHIGH
FBATT
VREF
C14
10
μF
C12
10
μF
C10
10
μF
C8
10
μF
C6
10
μF
1000
μF
0.1
μF
EN
REG5
REG4
REG3
REG2
REG1
REG5
HSD1
ENABLE
BAT
VREF
SCL
SDA
GND
REG4
REG3
HSD2
HSD3
HSD1
HSD2
HSD3
D99AU1010A
REG2
REG1
(*) ESR of output capacitors should be between 0.1
Ω and 5.0Ω.
CHIP ADDRESS
DATA BYTE
S
0
A
A
..
..
P
MSB
LSB
MSB
LSB
Obsolete
Product(s)
- Obsolete
Product(s)



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