The L9637 is a monolithic integrated circuit containing standard ISO 9141 compatible interface functions.
●Key Features
● Defined OFF output status in undervoltage condition and VS or GND interruption
● K output current limitation, typ. IK = 60 mA
● High input impedance for open VS or GND connection
● Controlled output slope for low EMI
● Defined K output OFF for TX input open
● Defined output ON status of LO or RX for open LI or K inputs
● EMI robustness optimized
● Integrated pull up resistors for TX, RX and LO
● Overtemperature shut down function Selective to K-I/O pin
● Bidirectional K-I/O pin with supply voltage dependent input threshold
● Operating power supply voltage range 4.5 V ≤ VS ≤ 36 V (40 V for transients)
● Standby mode with very low current consumption ISSB ≤ 1 mA @ VCC ≤ 0.5 V
● Reverse supply (battery) protected down to VS ≥ -24 V
● TTL compatible TX input
● Wide input and output voltage range -24 V ≤ VK ≤ VS
● Low quiescent current in off condition ISOFF = 120 µA
