參數(shù)資料
型號(hào): ATA6620-TAQY
廠商: Atmel
文件頁(yè)數(shù): 2/22頁(yè)
文件大?。?/td> 0K
描述: IC TXRX LIN BUS 5V/50MA 8SOIC
標(biāo)準(zhǔn)包裝: 4,000
類(lèi)型: 收發(fā)器
規(guī)程: LIN
電源電壓: 5 V ~ 18 V
安裝類(lèi)型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SO
包裝: 帶卷 (TR)
10
4850I–AUTO–09/09
ATA6620N
Figure 4-6.
Wake Up from Silent Mode at an Insufficient Falling Edge at Pin LIN
When designing the complete system it has to be considered, that in this case (only in pre-nor-
mal mode) the pin TXD of the ATA6620N works as an output.
4.3
Pre-normal Mode
At system power-up the device automatically switches to Pre-normal mode. The voltage regula-
tor is switched on (V
CC = 5V/50 mA) (see Figure 4-7 on page 11) after typically tVCC > 300 s.
The NRES output switches to low for t
res = 10 ms and sends a reset to the microcontroller. LIN
communication is switched off, and the undervoltage detection is active.
A power-down of V
Batt (VS < 4.15V) during Silent or Sleep mode switches into Pre-normal mode
after powering up the IC. During this mode the TXD pin is an output.
LIN Bus
Wake-up filtering
time t
WAKE
Regulator Wake-up Time
VCC
EN
Node ln silent mode
EN High
High
RXD
Low
If undervoltage switch to pre-normal mode
NRES
Silent mode
Pre-normal mode
Normal Mode
Normal mode
Undervoltage detection active
Pre-normal Mode
VLIN < VS - 1V and
VLIN > 0.6 VS
High
TXD
Low
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