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L4969

August 2003

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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OPERATING SUPPLY VOLTAGE 6V TO 28V,

TRANSIENT UP TO 40V

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LOW QUIESCENT CURRENT CONSUMP-

TION, LESS THAN 40

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TWO VERY LOW DROP VOLTAGE

REGULATORS 5V / 200mA

AND 5V/200mA

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SEPARATE VOLTAGE REGULATOR FOR

CAN-TRANSCEIVER SUPPLY WITH LOW

POWER SLEEP MODE

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EFFICIENT UC SUPERVISION AND RESET

LOGIC

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24 BIT SERIAL INTERFACE

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AN UNPOWERED OR INSUFFICIENTLY

SUPPLIED NODE DOES NOT DISTURB THE

BUS LINES

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VS VOLTAGE SENSE COMPARATOR

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SUPPORTS TRANSMISSION WITH

GROUNDSHIFT:

SINGLE WIRE: 1.5V, DIFFERENTIAL: 3V

DESCRIPTION

The L4969 is an integrated circuit containing 3 inde-

pendent Voltage Regulators and a standard fault tol-

erant low speed CAN line interface in multipower

BCD3S process.

It integrates all main local functions for automotive body

electronic applications connected to a CAN bus.

SO20

PowerSO20

ORDERING NUMBERS: L4969MD (SO20)

L4969 (PowerSO20)

PRELIMINARY DATA

SYSTEM VOLTAGE REGULATOR

WITH FAULT TOLERANT LOW SPEED CAN-TRANSCEIVER

Figure 1. Block Diagram

VREG 1

VREG 2

VREG 3

Fault tolerant

low speed

CAN-transceiver

24 Bit SPI

Control and Status Memory

Identifier Filter

Watchdog and

adjustable RC-Oscillator

VS

V1

V2

V3

CANH

CANL

RTH

RTL

TX

RX

SCLK

SIN

SOUT

WAKE

NINT

NRESET