E910.43 Datasheet, PDF (1/1 Pages) ELMOS Semiconductor AG – LIN transceiver

BUS IC
K-Bus transceiver
LIN- / K-Bus transceiver
LIN transceiver + VREG
ÿ LIN transceiver
LIN transceiver + VREG + WD
Single wire CAN transceiver
CAN transceiver
ÿ LIN transceiver
DC/DC CONVERTER
MOTOR DRIVER IC
RIPPLE COUNTER
FEATURES
ÿ Supply voltage range VS 6V to 18V
ÿ Supply voltage range VDD 4.5V to 5.5V
ÿ LIN 2.0 compatible interface for
data rates up to 20kBaud
ÿ Output slewrate control to reduce EMI
ÿ Short circuit current limitation
ÿ Over temperature protection
ÿ Bus-line DC voltage range – 24V to + 30V
ÿ Receiver debounce filter
ÿ Very low active current consumption
ÿ Very low standby current (typ. < 10 µA)
ÿ Wake up output by LIN-Bus transition and EN,
battery power on
ÿ – 40°C to + 125°C operating temperature
ÿ SO 8n package
APPLICATION
ÿ Bus interface for Local Interconnect Network (LIN)
communication especially in automobile
applications
DESCRIPTION
The IC interfaces between a µC and a Local Interconnect Network
(LIN) bus-line, mainly in automotive sub bus applications. When
pin EN is at High level (VDD), a digital input signal at pin TxD
is transferred to the fully protected low side driver on pin BUS.
The voltage level on pin BUS is detected by a comparator with a
threshold of nominally 50% of the battery supply VS. After pass-
ing a debounce filter it is valid on pin RxD as a digital signal refer-
enced to the digital supply voltage VDD.
EN also statically keeps the high side output INH active. A high to
low transition on EN as well as VDD falling under the POR thresh-
old will dynamically reset INH to high impedance. A debounced
low level on the bus-line for a certain time will set INH to high
level as well as a - power on condition - on the battery supply
pin VS.
BLOCK DIAGRAM
VBAT
VDD
ext. voltage
regulator
EN
INH
VS
BUS
VDD
EN
wake up
&
POR
slewrate
control
RXD
control
TXD
VDD
µC
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DRIVER IC
I/O IC
SENSOR IC
SENSOR INTERFACE IC
PINNING
Pin Name
1
RxD
2
EN
3
VDD
4
TxD
5
GND
6
BUS
7
VS
8
INH
Description
Serial data from IC to µC
Enable activates transmitter,receive and output INH
+5V digital supply
Serial data from µC to IC
Ground
LIN-Bus pin
+12V positive supply
Switched battery supply output to activate,
e.g. an external voltage regulator
E910.43
PACKAGE
RxD
1
EN
2
VDD
3
TxD
4
8
INH
7
VS
6
BUS
5
GND
Note ELMOS Semiconductor AG (below ELMOS) reserves the right to make changes to the product contained in this publication without notice. ELMOS assumes no responsibility for the use of any
circuits described herein, conveys no licence under any patent or other right, and makes no representation that the circuits are free of patent infringement. While the information in this publication
has been checked, no responsibility, however, is assumed for inaccuracies. ELMOS does not recommend the use of any of its products in life support applications where the failure or malfunction of
the product can reasonably be expected to cause failure of a life-support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications.
Copyright © 2005 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited.
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elmos product catalog june 2005
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