E-L9637D, E-L9637D013TR, L9637, L9637D, L9637D013TR

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L9637D
ISO 9141 INTERFACE

OPERATING POWER SUPPLY VOLTAGE RANGE 4.5V VS 36V (40V FOR TRANSIENTS) REVERSE SUPPLY (BATTERY) PROTECTED DOWN TO VS -24V STANDBY MODE WITH VERY LOW CURRENT CONSUMPTION ISSB 1uA @ VCC 0.5V LOW QUIESCENT CURRENT IN OFF CONDITION ISOFF = 120uA TTL COMPATIBLE TX INPUT BIDIRECTIONAL K-I/O PIN WITH SUPPLY VOLTAGE DEPENDENT INPUT THRESHOLD OVERTEMPERATURE SHUT DOWN FUNCTION SELECTIVE TO K-I/O PIN WIDE INPUT AND OUTPUT VOLTAGE RANGE -24V VK VS K OUTPUT CURRENT LIMITATION, TYP IK = 60mA DEFINED OFF OUTPUT STATUS IN UNDERVOLTAGE CONDITION AND VS OR GND INTERRUPTION CONTROLLED OUTPUT SLOPE FOR LOW EMI HIGH INPUT IMPEDANCE FOR OPEN VS OR GND CONNECTION BLOCK DIAGRAM

SO8

ORDERING NUMBER: L9637D

DEFINED OUTPUT ON STATUS OF LO OR RX FOR OPEN LI OR K INPUTS DEFINED K OUTPUT OFF FOR TX INPUT OPEN INTEGRATED PULL UP RESISTORS FOR TX, RX AND LO EMI ROBUSTNESS OPTIMIZED DESCRIPTION The L9637D is a monolithic integrated circuit containing standard ISO 9141 compatible interface functions.

VCC VS
RTX RL O RRX

K
IK OFF

+
1,75V

TX

+
LI
IL I

RX

+

LO

GND

September 2002

1/10

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E-L9637D DATASHEET