L5951(2001) Ver la hoja de datos (PDF) - STMicroelectronics

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L5951
(Rev.:2001)

TRIPLE OUTPUT MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO WITH IDR/CLASS 2 INTERFACE

STMicroelectronics 

L5951

TRIPLE OUTPUT MULTIFUNCTION VOLTAGE REGULATOR

FOR CAR RADIO WITH IDR/CLASS 2 INTERFACE

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 (<150µA)

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

BLOCK DIAGRAM

VBAT

LVS

SUPPLY

SELECTOR

SO24

ORDERING NUMBER: L5951

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.

3V

STANDBY

REG1

BANDGAP

REFERENCE

5V

STANDBY

REG2

EN

SLEEP

ENABLE/

PROTECTION

LOGIC

January 2001

TX

4X

LOOP

RX

DIGITAL OUTPUT

DRIVER

WAVESHAPING

FILTER

4XEN AND

LOOPBACK

RESET

7.8V

BUS DRIVER

RESET

REG3

BUS

LOSS

OF GND

PROTECTION

LOAD

GND

D99AU991

1/13

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