Datasheet > TJA1128ETK

TJA1128ETK

更新时间： 2024-09-16 15:19:03

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
42页	709K
描述
LIN Mini System Basis Chip with integrated voltage regulator

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TJA1128ETK 数据手册

TJA1128

LIN mini system basis chip

Rev. 2 — 24 April 2023

Product data sheet

1 General description

The TJA1128 is a LIN Mini System Basis Chip (SBC) with a LIN transceiver, a low-

dropout voltage regulator (LDO), a window watchdog, two WAKE inputs, one general

purpose input (GPI) and one high-voltage multipurpose (HVMPO) output. The voltage

regulator delivers up to 85 mA and is available with 3.3 V and 5.0 V output voltages. The

TJA1128 can be operated in very low-current STANDBY and SLEEP modes with bus and

local wake-up capability.

2 Features and benefits

2.1 General

• Intended for use in road vehicles with a nominal 12 V system, full battery operating

range from 5.0 V to 28 V

• Very low current consumption in SLEEP and STANDBY mode

– SLEEP mode (voltage regulator off): typically 14 µA

– STANDBY mode (voltage regulator on): typically 22 µA

• Remote wake-up capability via pin LIN

• Local wake-up via pins WAKE1 and WAKE2

– Configurable level-sensitive wake-up detection

– Cyclic sampled wake-up detection option with synchronized bias control via pin

HVMPO

• Wake-up source recognition

• Configurable high-voltage multipurpose output (HVMPO)

– Bias control output for cyclic wake-up

– Limp home output

– Bias control output for battery monitoring circuit

– General purpose input (GPI) controlled output

• Limp home function on overtemperature, watchdog service fail, VCC undervoltage and

RSTN short-circuit to ground

• Overtemperature shutdown

• Bidirectional reset pin with variable power-on reset length

2.2 Device customization

• Quasi one-time configuration via Serial Peripheral Interface (SPI)

• Initial mode to configure and disable

– Functions (e.g., LIN, watchdog, Reset, WAKE)

– Modes (e.g., SLEEP)

12 3 4 5 6 7...42

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