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NXP Semiconductors Electronic Components Datasheet

TJA1020 Datasheet

LIN transceiver

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TJA1020 pdf
INTEGRATED CIRCUITS
DATA SHEET
TJA1020
LIN transceiver
Product specification
Supersedes data of 2001 Dec 17
2002 Jul 17


NXP Semiconductors Electronic Components Datasheet

TJA1020 Datasheet

LIN transceiver

No Preview Available !

TJA1020 pdf
Philips Semiconductors
LIN transceiver
Product specification
TJA1020
FEATURES
General
Baud rate up to 20 Kbaud
Very low ElectroMagnetic Emission (EME)
High ElectroMagnetic Immunity (EMI)
Low slope mode for an even further reduction of EME
Passive behaviour in unpowered state
Input levels compatible with 3.3 and 5 V devices
Integrated termination resistor for Local Interconnect
Network (LIN) slave applications
Wake-up source recognition (local or remote).
Low power management
Very low current consumption in sleep mode with local
and remote wake-up.
Protections
Transmit data (TXD) dominant time-out function
Bus terminal and battery pin protected against
transients in the automotive environment (ISO7637)
Bus terminal short-circuit proof to battery and ground
Thermally protected.
GENERAL DESCRIPTION
The TJA1020 is the interface between the LIN
master/slave protocol controller and the physical bus in a
Local Interconnect Network (LIN). It is primarily intended
for in-vehicle sub-networks using baud rates from 2.4 up to
20 Kbaud.
The transmit data stream of the protocol controller at the
TXD input is converted by the LIN transceiver into a bus
signal with controlled slew rate and wave shaping to
minimize EME. The LIN bus output pin is pulled HIGH via
an internal termination resistor. For a master application
an external resistor in series with a diode should be
connected between pin INH or pin BAT and pin LIN. The
receiver detects the data stream at the LIN bus input pin
and transfers it via pin RXD to the microcontroller.
In normal transceiver operation the TJA1020 can be
switched in the normal slope mode or the low slope mode.
In the low slope mode the TJA1020 lengthens the rise and
fall slopes of the LIN bus signal, thus further reducing the
already very low emission in normal slope mode.
In sleep mode the power consumption of the TJA1020 is
very low, whereas in failure modes the power consumption
is reduced to a minimum.
QUICK REFERENCE DATA
SYMBOL
VBAT
IBAT
VLIN
Tvj
Vesd(HBM)
PARAMETER
supply voltage on pin BAT
supply current on pin BAT in sleep mode
supply current on pin BAT in standby mode; bus recessive
supply current on pin BAT in normal slope mode; bus recessive
supply current on pin BAT in normal slope mode; bus dominant
DC voltage on pin LIN
virtual junction temperature
electrostatic discharge voltage; human body model;
pins NWAKE, LIN and BAT
MIN.
5
1
100
100
1
27
40
4
TYP.
12
3
400
400
3.5
MAX.
27
8
1 000
1 000
8.0
+40
+150
+4
UNIT
V
µA
µA
µA
mA
V
°C
kV
ORDERING INFORMATION
TYPE
NUMBER
TJA1020T
TJA1020U
NAME
SO8
PACKAGES
DESCRIPTION
plastic small outline package; 8 leads; body width 3.9 mm
bare die; die dimensions 1480 × 1760 × 375 µm
VERSION
SOT96-1
2002 Jul 17
2


Part Number TJA1020
Description LIN transceiver
Maker NXP
Total Page 24 Pages
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