Datasheet > TJA1029

TJA1029

更新时间： 2024-09-19 12:24:07

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
24页	529K
描述
LIN 2.2A/SAE J2602 transceiver with TXD dominant timeout

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TJA1029 数据手册

TJA1029

LIN 2.2A/SAE J2602 transceiver with TXD dominant timeout

Rev. 1 — 8 January 2013

Product data sheet

1. General description

The TJA1029 is the interface between the Local Interconnect Network (LIN) master/slave

protocol controller and the physical bus in a LIN network. It is primarily intended for

in-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 the

TJA1020, TJA1021, TJA1022 and TJA1027.

The protocol controller generates the transmit data stream. The TJA1029 converts the

data 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 a

master application, connect an external resistor in series with a diode between pin V_BAT

and pin LIN. The receiver detects a receive data stream on the LIN bus input pin and

transfers it via pin RXD to the microcontroller.

Power consumption is very low in Sleep mode. However, the TJA1029 can still be woken

up via pins LIN and SLP_N. An integrated TXD dominant time-out function prevents the

bus being driven to a permanent dominant state.

2. Features and benefits

2.1 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  3.0 mm) with improved Automated Optical

Inspection (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

12 3 4 5 6 7...24

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