UJA1069TW datasheet(2/64 Pages) NXP

Part #	UJA1069TW

Description	LIN fail-safe system basis chip

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Manufacturer	NXP [NXP Semiconductors]

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2 / 64 page

UJA1069_4

Product data sheet

Rev. 04 — 28 October 2009

2 of 64

NXP Semiconductors

UJA1069

LIN fail-safe system basis chip

2.

Features

2.1 General

I Contains a full set of LIN ECU functions:

N LIN transceiver

N Voltage regulator for the microcontroller (5.0 V)

N Enhanced window watchdog with on-chip oscillator

N Serial Peripheral Interface (SPI) for the microcontroller

N ECU power management system

N Fully integrated autonomous fail-safe system

I Designed for automotive applications:

N Supports 14 V and 42 V architectures

N Excellent ElectroMagnetic Compatibility (EMC) performance

N ±8 kV ElectroStatic Discharge (ESD) protection Human Body Model (HBM) for

off-board pins

N ±4 kV ElectroStatic Discharge (ESD) protection IEC 61000-4-2 for off-board pins

N ±60 V short-circuit proof LIN-bus pin

N Battery and LIN-bus pins are protected against transients in accordance with

ISO 7637-3

N Very low sleep current

I Supports remote ﬂash programming via the LIN-bus

I Available in:

N Small 6.4 mm × 7.8 mm HTSSOP24 package with low thermal resistance

N Small 8 mm × 11 mm HTSSOP32 package with low thermal resistance

2.2 LIN transceiver

I LIN 2.0 and SAE J2602 compliant LIN transceiver

I Enhanced error signalling and reporting

I Downward compatible with LIN 1.3 and the TJA1020

2.3 Power management

I Smart operating modes and power management modes

I Cyclic wake-up capability in Standby and Sleep mode

I Local wake-up input with cyclic supply feature

I Remote wake-up capability via the LIN-bus

I External voltage regulators can easily be incorporated in the power supply system

(ﬂexible and fail-safe)

I 42 V battery related high-side switch for driving external loads such as relays and

wake-up switches

I Intelligent maskable interrupt output

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