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TJA1020

Selection guide

Datasheet

TJA1020
(Product Specification)
13-Jan-04, 22 pages, 129 kB

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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.

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)
  • Supports K-line like functions.

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.

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
TJA1020T/N1TJA1020TD9352 687 33112Volume productionSOT96-1
(SO8)
TubeStandard MarkingTJA1020T/N1
week 3, 2005
TJA1020T/N1TJA1020TD-T9352 687 33118Volume productionSOT96-1
(SO8)
Tape reel smdStandard MarkingTJA1020T/N1
week 3, 2005
TJA1020U/N19352 710 76027Volume productionUncased dieCircuit Element Packed On Reel 7"No MarkingTJA1020U/N1

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
TJA1020T/N19352 687 33112  NAAVNET ELECTRONICS MARKETING3,060 1/7/2009Buy onlinenot available
   NADIGI-KEY CORPORATION5,612 1/6/2009Buy online 
TJA1020T/N19352 687 33118  ASIASACL - Hong Kong/Chinayes250001/08/2009Buy onlinenot available
   NADIGI-KEY CORPORATION90,000 1/6/2009Buy online 
   NAFUTURE ELECTRONICS1,500 1/7/2009Buy online 
   NAMOUSER ELECTRONICS2,446 1/7/2009Buy online 
TJA1020U/N19352 710 76027        not available

Applications


Related applications
Body controller module

Block diagrams/pinning

Parametrics/similar products

Type numberPackageSupply
voltage(V)
ApplicationConfigurationCATEGORYFEATURESFUNCTIONOperating
temp.(Cel)
Package MaterialTransceiver Type
TJA1020T/N1SOT96-1
(SO8)
5.0 ~ 27Communication deviceLIN1.3 transceiver Transceiver- Local and remote wake-up - Fail-safe featuresLIN transceiver-40 ~ +125- SO8 - Bare dieLIN transceiver
TJA1020U/N1Uncased die
5.0 ~ 27LIN1.3 transceiver Transceiver- Local and remote wake-up - Fail-safe features-40 ~ +126- SO8 - Bare die


Similar products
TJA1020 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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