TJA1029 - LIN 2.2A/SAE J2602 transceiver with TXD dominant timeout

TJA1029是NXP恩智浦公司的一款LIN收发信机产品，TJA1029是LIN 2.2A/SAE J2602 transceiver with TXD dominant timeout，本站介绍了TJA1029的封装应用图解、特点和优点、功能等，并给出了与TJA1029相关的NXP元器件型号供参考。

TJA1029 - LIN 2.2A/SAE J2602 transceiver with TXD dominant timeout - LIN收发信机 - 收发信机 - 恩智浦

产品描述

The TJA1029 is the interface between the Local Interconnect Network (LIN) master/slaveprotocol controller and the physical bus in a LIN network. It is primarily intended forin-vehicle subnetworks using baud rates up to 20 kBd and is compliant with LIN 2.0,LIN 2.1, LIN 2.2, LIN 2.2A and SAE J2602. The TJA1029 is pin-compatible with theTJA1020, TJA1021, TJA1022 and TJA1027.

The protocol controller generates the transmit data stream. The TJA1029 converts thedata stream into an optimized bus signal shaped to minimize ElectroMagnetic Emissions(EME). The LIN bus output pin is pulled HIGH via an internal termination resistor. For amaster application, connect an external resistor in series with a diode between pin VBATand pin LIN. The receiver detects a receive data stream on the LIN bus input pin andtransfers it via pin RXD to the microcontroller.

Power consumption is very low in Sleep mode. However, the TJA1029 can still be wokenup via pins LIN and SLP_N. An integrated TXD dominant time-out function prevents thebus being driven to a permanent dominant state.

产品特性和优势

General

Compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A and SAE J2602
Baud rate up to 20 kBd
Very low ElectroMagnetic Emissions (EME)
Very low current consumption in Sleep mode with remote LIN wake-up
Input levels compatible with 3.3 V and 5 V devices
Integrated termination resistor for LIN slave applications
Passive behavior in unpowered state
Operational during cranking pulse: full operation from 5 V upwards
Undervoltage detection
K-line compatible
Available in SO8 and HVSON8 packages
Leadless HVSON8 package (3.0 mm x 3.0 mm) with improved Automated OpticalInspection (AOI) capability
Dark green product (halogen free and Restriction of Hazardous Substances (RoHS)compliant)
Pin-compatible subset of the TJA1020, TJA1021 and TJA1022
Pin-compatible with the TJA1027

Protection

Very high ElectroMagnetic Immunity (EMI)
Very high ESD robustness: ±8 kV according to IEC 61000-4-2 for pins LIN and VBAT
Bus terminal and battery pin protected against transients in the automotiveenvironment (ISO 7637)
Bus terminal short-circuit proof to battery and ground
Thermally protected
Initial TXD dominant check when switching to Normal mode
TXD dominant time-out function

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