TJA1020T LIN transceiver

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

产品特点 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
功能框图
TJA1020T 功能框图
封装
型号 订购码 (12NC) 可订购的器件编号 产品状态 封装
TJA1020T/CM 9352 950 78118 TJA1020T/CM,118 量产 SO8 (SOT96-1)
订货和供应
型号 订购码 (12NC) 可订购的器件编号 化学成分
TJA1020T/CM 9352 950 78118 TJA1020T/CM,118 TJA1020T/CM
TJA1020T 技术支持
档案名称 标题 类型 格式
TJA1020T LIN transceiver Data sheet pdf
AN10115 Philips Microcontrollers in LIN Applications Application note pdf
AN00093 TJA1020 LIN Transceiver Application note pdf
AN00094 TJA1041/1041A high speed CAN transceiver Application note pdf
AN00020 TJA1050 high speed CAN transceiver Application note pdf
AN10211 TJA1040 high speed CAN transceiver Application note pdf
AN96116 PCA82C250/251 CAN Transceiver Application note pdf
PCA82C250_251_TJA1040_TJA1050 Upgrading Note PCA82C250/251 -> TJA1040, TJA1050 Other type pdf