DESCRIPTION
The L9638 is a monolithic integrated circuit for LIN-bus interface function between the protocol handler in the controller and the physical bus in automotive applications. As well as it can be used in standard ISO 9141 systems.

FEATURES
■ Single-wire transceiver for LIN-protocol
■ Transmission rate up to 20 kbaud
■ Operating power supply voltage range 6V ≤ Vs ≤ 26V (40V for transients)
■ Low quiescent current in sleep mode (typ.10µA)
■ Wake-up through LIN-bus, Enable input (from µC CMOS compatible) or Wake-up input (edge driven)
■ Wide input and output range -24V ≤ VLIN ≤ Vs
■ Integrated pull/down/up resistors for LIN, TxD, RxD, EN, INH
■ Inhibit output with low resistance (<40Ω) versus Vs and short circuit protection
■ CMOS compatible TxD, RxD Interface
■ EMI robustness optimised
■ Thermal shutdown and LIN short circuit protection