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L5951 Datasheet(PDF) 5 Page - STMicroelectronics

Part No. L5951
Description  TRIPLE OUTPUT MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO WITH IDR/CLASS 2 INTERFACE
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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L5951 Datasheet(HTML) 5 Page - STMicroelectronics

 
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L5951
PIN CONNECTION
PIN FUNCTIONS
*denotes active low for Sleep and Reset.
N.
Name
Function
1
REG1
Regulator #1
2
Reset *
Reset Output to
µC
3
Rext
Waveshaping Resistor
4
GND_REG
Regulator Ground
,6,7,8,17,
18,19,20
GND_TX
Transceiver Ground
9
Sleep *
Transceiver Enable Input
0
EN
Enable for Regulator #3
11
4X
4XBus mode (41.6K Baud)
12
LOOP
Loopback Enable
13
RX
Serial Data Output to mC
14
TX
Serial Data Input from mC
15
Load
External Pull Down to Gnd
16
Bus
Bus Output to Vehicle
21
Bat
Battery Supply
22
REG3
Regulator #3
23
REG2
Regulator #2
24
LVS
Low Voltage Supply
REG1
RESET
REXT
GND_REG
GND_TX
GND_TX
GND_TX
GND_TX
SLEEP
BUS
GND_TX
GND_TX
GND_TX
GND_TX
BAT
REG3
REG2
LVS
1
3
2
4
5
6
7
8
9
22
21
20
19
18
16
17
15
23
10
24
EN
LOAD
D99AU992
4X
TX
11
14
13
12
LOOP
RX


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