ATA6617 데이터 시트보기 (PDF) - Atmel Corporation

부품명

상세내역

제조사

ATA6617

Microcontroller with LIN Transceiver, 5V Regulator and Watchdog

Atmel Corporation 

Atmel ATA6616/ATA6617

Figure 3-4.

LIN Wake-up from Silent Mode

Bus wake-up filtering time

tbus

LIN bus

Node in silent mode

RXD

High

Fail-safe mode

Low

Normal mode

High

TXD

Watchdog

Watchdog off

VCC

voltage

regulator

Silent mode 3.3V/5V/50mA

EN

Start watchdog lead time td

Fail safe mode 3.3V/5V/50mA Normal mode

EN High

NRES

Undervoltage detection active

3.4.3

Sleep Mode

A falling edge at EN when TXD is low switches the IC into Sleep Mode. The TXD Signal has to

be logic low during the Mode Select window (Figure 3-5 on page 12). In order to avoid any

influence to the LIN-pin during switching into sleep mode it is possible to switch the EN up to

3.2µs earlier to LOW than the TXD. Therefore, the best and easiest way are two falling edges

at TXD and EN at the same time.The transmission path is disabled in Sleep Mode. The supply

current IVSsleep from VBatt is typically 10µA.

The VCC regulator is switched off. NRES and RXD are low. The internal slave termination

between the LIN pin and VS pin is disabled, only a weak pull-up current (typically 10µA)

between the LIN pin and the VS pin is present. Sleep Mode can be activated independently

from the current level on the LIN, WAKE, or KL_15 pin.

A voltage less than the LIN Pre_Wake detection VLINL at the LIN pin activates the internal LIN

receiver and switches on the internal slave termination between the LIN pin and the VS pin.

11

9132D–AUTO–12/10

Share Link: