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L5951 Datasheet(PDF) 1 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) 1 Page - STMicroelectronics

 
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L5951
January 2001
s
3 VOLTAGE REGULATORS:
3.3V (100mA) STANDBY REGULATOR
5V (100mA) STANDBY REGULATOR
7.8V (100mA)
s
OUT OF REGULATION DETECTION FOR 5V-
STANDBY REGULATOR
s
WIDE OPERATING SUPPLY VOLTAGE
RANGE FROM 4.5V UP TO 26.5V FOR
TRANSIENT 34V
s
VERY LOW STANDBY QUIESCENT
CURRENT (<150
µA)
s
INPUT TO OUTPUT SIGNAL TRANSFER
FUNCTION PROGRAMMABLE
s
LVS FUNCTION
s
TTL AND CMOS COMPATIBLE INPUTS
s
OUTPUT CURRENT LIMITATION
s
CONTROLLED OUTPUT SLOPE FOR LOW
EMI
s
OVERTEMPERATURE SHUT-DOWN
s
ABLE TO SURVIVE UNDER LOSS OF
GROUND OR BATTERY
s
ESD PROTECTED
DESCRIPTION
The L5951 is a monolithic triple regulator integrated
with a SAE J1850 Integrated Driver / Receiver real-
ized in advanced Multipower-BCD technology. It is
intended to drive single wire J1850 communications,
and offer microcontroller power and power manage-
ment for automotive or industrial applications.
SO24
ORDERING NUMBER: L5951
TRIPLE OUTPUT MULTIFUNCTION VOLTAGE REGULATOR
FOR CAR RADIO WITH IDR/CLASS 2 INTERFACE
BLOCK DIAGRAM
SUPPLY
SELECTOR
BANDGAP
REFERENCE
3V
STANDBY
5V
STANDBY
RESET
ENABLE/
PROTECTION
LOGIC
7.8V
BUS DRIVER
WAVESHAPING
FILTER
4XEN AND
LOOPBACK
DIGITAL OUTPUT
DRIVER
LOSS
OF GND
PROTECTION
LOAD
GND
BUS
REG3
RESET
REG2
REG1
VBAT
LVS
EN
SLEEP
TX
4X
LOOP
RX
D99AU991


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