L9637D

L9637 Monolithic bus driver with ISO 9141 interface Features ■ Operating power supply voltage range 4.5 V  VS  36 V (40 V for transients) ■ Reverse supply (battery) protected down to VS  -24 V ■ Standby mode with very low current consumption ISSB 1 mA @ VCC 0.5 V ■ Low quiescent current in off condition ISOFF = 120 µA ■ 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 -24 V  VK  VS ■ K output current limitation, typ. IK = 60 mA ■ Defined OFF output status in undervoltage condition and VS or GND interruption ■ Controlled output slope for low EMI SO8 ■ 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 L9637 is a monolithic integrated circuit containing standard ISO 9141 compatible interface functions. Table 1. Device summary Order code Package L9637D L9637D013TR E-L9637D(1) E-L9637D013TR(1) SO8 SO8 SO8 SO8 1. Device in ECOPACK® package (see Section 4: Package information on page 13). Packing Tube Tape and reel Tube Tape and reel September 2013 Doc ID 1765 Rev 8 1/15 www.st.com 15 Contents Contents L9637 1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Block diagram . ...