L9638 Datasheet, PDF (1/14 Pages) STMicroelectronics – LIN BUS TRANSCEIVER

L9638
LIN BUS TRANSCEIVER
1 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 ≤ V_LIN ≤ 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
Figure 1. Block Diagram
SO-8
Table 1. Order Codes
Part Number
L9638D
L9638D013TR
Package
SO-8
Tape & Reel
2 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.
VS
Int.5V
Internal
Voltage
Regulator
RxD
Glitch
Filter
VS_D
LIN
TxD
EN
WUP
Glitch
Filter
Control
Logic
Protection
VS_D
INH
GND
October 2004
Rev. 4
1/14