TLE8457BLE datasheet(16/33 Pages) INFINEON

No de pièce	TLE8457BLE

Description	LIN Transceiver with integrated Voltage Regulator

PDF	33 Pages

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Fabricant	INFINEON [Infineon Technologies AG]

Site Internet	http://www.infineon.com

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16 / 33 page

Data Sheet

Rev. 1.0

2016-08-05

TLE8457

LIN Transceiver with integrated Voltage Regulator

Functional Description

In case the VCC voltage rise above the VCC,UV undervoltage threshold before the timer elapses, VCC is considered

successfully initialized and the timer is disabled. If the timer elapses before VCC powers up correctly, the

TLE8457 will autonomously transition to Sleep Mode.

Normal Operation Mode Activation

After the TLE8457 has generated a reset pulse the Initialization Watchdog is started for monitoring the

activation of Normal Operation Mode. The microcontroller must set the EN input “high” before the timer

elapses after tInit_WD, else the TLE8457 will autonomously transition to Sleep Mode.

Figure 13

Enable activation time-out

TLE8457_INITIALIZATION_TIMEOUT

Standby mode / Sleep mode / unpowered

NRST

tRST

Sleep mode

tInit_WD

Init mode

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