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The L9637 is a monolithic integrated circuit containing standard ISO 9141 compatible interface functions.
L9637 Maximum Ratings
Symbol
Parameter
Value
Unit
VS
Supply Voltage ISO transients t = 400ms
-24 to +36 -24 to +40
V V
VCC
Stabilized Voltage
-0.3 to +7
V
VS/dt
Supply Voltage transient
-10 to +10
V/s
VLI, K
Pin Voltage
-24 to VS
V
VLO, RX, TX
Pin Voltage
-24 to VCC
V
Note: Max.ESD voltages are ±2kV with human body model C = 100pF,R = 1.5k corresponds to maximum energy dissipation 0.2mJ according to MIL883C.
L9637 Features
`OPERATING POWER SUPPLY VOLTAGE RANGE 4.5V VS 36V (40V FOR TRANSIENTS) `REVERSE SUPPLY (BATTERY) PROTECTED DOWNTO VS -24V `STANDBY MODE WITH VERY LOW CURRENT CONSUMPTION ISSB 1A@VCC 0.5V `LOW QUIESCENT CURRENT IN OFF CONDITION ISOFF = 120A `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 `DEFINED OUTPUT ON STATUS OF LO OR RX FOR OPENLI OR K INPUTS `DEFINED K OUTPUT OFF FOR TX INPUT OPEN `INTEGRATED PULL UP RESISTORS FOR TX, RX AND LO `EMI ROBUSTNESS OPTIMIZED
L9637 Connection Diagram
L9637D Parameters
Technical/Catalog Information
L9637D
Vendor
STMicroelectronics
Category
Integrated Circuits (ICs)
Package / Case
8-SOIC (3.9mm Width)
Packaging
Tube
Type
Interface
Interface
ISO9141
Supply Voltage
4.5 V ~ 36 V
Current - Supply
2.3mA
Input Type
Voltage
Output Type
Voltage
Function
*
Number of Channels
*
Operating Temperature
*
Voltage - Supply
*
Drawing Number
*
Lead Free Status
Lead Free
RoHS Status
RoHS Compliant
Other Names
L9637D L9637D
L9637D General Description
The L9637 is a monolithic integrated circuit containing standard ISO 9141 compatible interface functions.
L9637D Maximum Ratings
Symbol
Parameter
Value
Unit
VS
Supply Voltage ISO transients t = 400ms
-24 to +36 -24 to +40
V V
VCC
Stabilized Voltage
-0.3 to +7
V
VS/dt
Supply Voltage transient
-10 to +10
V/s
VLI, K
Pin Voltage
-24 to VS
V
VLO, RX, TX
Pin Voltage
-24 to VCC
V
Note: Max.ESD voltages are ±2kV with human body model C = 100pF,R = 1.5k corresponds to maximum energy dissipation 0.2mJ according to MIL883C.
L9637D Features
`OPERATING POWER SUPPLY VOLTAGE RANGE 4.5V VS 36V (40V FOR TRANSIENTS) `REVERSE SUPPLY (BATTERY) PROTECTED DOWNTO VS -24V `STANDBY MODE WITH VERY LOW CURRENT CONSUMPTION ISSB 1A@VCC 0.5V `LOW QUIESCENT CURRENT IN OFF CONDITION ISOFF = 120A `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 `DEFINED OUTPUT ON STATUS OF LO OR RX FOR OPENLI OR K INPUTS `DEFINED K OUTPUT OFF FOR TX INPUT OPEN `INTEGRATED PULL UP RESISTORS FOR TX, RX AND LO `EMI ROBUSTNESS OPTIMIZED