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L9669

FAULT TOLERANT CAN TRANSCEIVER

s

s

s

s

s

s

s

s

s

FAULT TOLERANT DIFFERENTIAL

CAN TRANSCEIVER

OPERATING SUPPLY VOLTAGE 6V TO 28V,

TRANSIENTS UP TO 40V

LOW QUIESCENT CURRENT IN STANDBY

MODE (100

碌

A) AND SLEEP MODE (37

碌

A)

ON CHIP DIAGNOSIS FOR ERRORS ON THE

PHYSICAL BUSLINES WITH MICRO

CONTROLLER INTERFACE

OPTIMIZED EMI BEHAVIOUR DUE TO LIMITED

AND SYMMETRIC SLOPES OF CAN SIGNALS

AUTOMATIC SWITCHING TO SINGLE WIRE

MODE UPON BUS FAILURES

TWO-EDGE SENSITIVE WAKE-UP PIN

SUPPORTS TRANSMISSION WITH GROUND

SHIFT VOLTAGES:

SINGLE WIRE: 1.5V

DIFFERENTIAL WIRE: 3v

AN UNPOWERED NODE OR UNSUFFICIENT

SO14

ORDERING NUMBER: L9669

SUPPLIES DO NOT DISTURB THE BUS

LINES

DESCRIPTION

The L9669 is an integrated circuit which contains a

CAN physical line interface. It integrates all main lo-

cal functions for automotive body electronic applica-

tions connected to a CAN bus.

Figure 1. Block Diagram

KL30

(+12V)

Voltage +5V

Regulator

VS

14

INH

1

VCC

10

5Vint

75k

WAKE

7

VCC

12.5k

Wake-up

Control

CANH

Driver

TXD

Control

CANH

Driver

Filter

11 CANH

12 CANL

CAN

BUSLINE

TXD

2

R

RTH

3

R

RTL

Receiver

RXD

CANH Termination

NSTB

EN

5

6

Low

Power

Control

100k

8 RTH

9 RTL

4

Error

Management

& Diagnosis

CANL Termination

NERR

100k

13

GND

99AT0001

July 2003

1/13

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  FAULT TOLERANT CAN TRANSCEIVER
  
  L9669
• L9669
  英文版
  FAULT TOLERANT CAN TRANSCEIVER
  STMICROELECTRON...
  L9669

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