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 1µA @ VCC 0.5V
  	- LOW QUIESCENT CURRENT IN OFF CONDITION ISOFF = 120µA
  	- 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 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.
   
  ABSOLUTE MAXIMUM RATINGS (No damage or latch)
   	 		 			| 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/µs |  		
 		 			| 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.
   
  BLOCK DIAGRAM
  
   
  PIN CONNECTION (Top view)
  
   
  OUTLINE AND MECHANICAL DATA
  SO8
  
   
   
   
  