E-L9637D

L9637 Monolithic bus driver with ISO 9141 interface Features Operating power supply voltage range 4.5 V V 36 V (40 V for transients) S Reverse supply (battery) protected down to V -24 V S Standby mode with very low current SO8 consumption IS 1 mA V 0.5 V SB CC Low quiescent current in off condition IS = 120 A OFF High input impedance for open V or GND S TTL compatible TX input connection Bidirectional K-I/O pin with supply voltage Defined output ON status of LO or RX for open dependent input threshold LI or K inputs Overtemperature shut down function Selective Defined K output OFF for TX input open to K-I/O pin Integrated pull up resistors for TX, RX and LO Wide input and output voltage range -24 V V V EMI robustness optimized K S K output current limitation, typ. I = 60 mA K Description Defined OFF output status in undervoltage condition and V or GND interruption S The L9637 is a monolithic integrated circuit Controlled output slope for low EMI containing standard ISO 9141 compatible interface functions. Table 1. Device summary Order code Package Packing L9637D SO8 Tube L9637D013TR SO8 Tape and reel (1) E-L9637D SO8 Tube (1) E-L9637D013TR SO8 Tape and reel 1. Device in ECOPACK package (see Section 4: Package information on page 13). September 2013 Doc ID 1765 Rev 8 1/15 www.st.com 15Contents L9637 Contents 1 Block diagram and pin description . 3 1.1 Block diagram . 3 1.2 Pin description 3 2 Electrical specification . 4 2.1 Absolute maximum ratings . 4 2.2 Thermal data . 4 2.3 Electrical characteristics . 4 3 Functional description . 9 4 Package information 13 5 Revision history . 14 2/15 Doc ID 1765 Rev 8