Datasheet > TJA1124CHG

TJA1124CHG

更新时间： 2024-11-26 14:59:31

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
23页	275K
描述
Integrated pull-up resistors QUAD LIN transceivers

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TJA1124CHG 数据手册

TJA1124

Quad LIN master transceiver

Rev. 1 — 8 May 2018

Product data sheet

1 General description

The TJA1124 is a quad Local Interconnect Network (LIN) master channel device.

It provides the interface between a LIN master protocol controller and the physical

bus in a LIN network. Each of the four channels contains a LIN transceiver and LIN

master termination. The TJA1124 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,

ISO 17987-4:2016 (12 V LIN) and SAE J2602-1.

The transmit data streams generated by the LIN master protocol controller are converted

by the TJA1124 into optimized bus signals shaped to minimize ElectroMagnetic Emission

(EME). The LIN bus output pins are pulled HIGH via internal LIN master termination

resistors. The receivers detect receive data streams on the LIN bus input pins and

transfer them to the microcontroller via pins RXD1 to RXD4.

Power consumption is very low in Low Power mode. However, the TJA1124 can still be

woken up via pins SLP and LIN1 to LIN4.

2 Features and benefits

2.1 General

• Four LIN master channels in a single package:

– LIN transceiver

– LIN master termination consisting of a diode and a 1 kΩ ±10 % resistor

• Compliant with:

– LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A

– ISO 17987-4:2016 (12 V LIN)

– SAE J2602-1

• Very low current consumption in Low Power mode with wake-up via SLP or LIN pins

• Option to control an external voltage regulator via the INHN output

• Bus signal shaping optimized for baud rates up to 20 kBd

• VIO input for direct interfacing with 3.3 V and 5 V microcontrollers

• Passive behavior in unpowered state

• Undervoltage detection

• K-line compatible

• Leadless DHVQFN24 package (3.5 mm × 5.5 mm) supporting improved Automated

Optical Inspection (AOI) capability

2.2 Protection

• Excellent ElectroMagnetic Immunity (EMI)

12 3 4 5 6 7...23

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