參數(shù)資料
型號(hào): ATA6620-TASY
廠商: Atmel
文件頁(yè)數(shù): 22/22頁(yè)
文件大小: 0K
描述: IC TXRX LIN BUS 5V/50MA 8SOIC
標(biāo)準(zhǔn)包裝: 112
類型: 收發(fā)器
規(guī)程: LIN
電源電壓: 5 V ~ 18 V
安裝類型: 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: 管件
9
4850I–AUTO–09/09
ATA6620N
Figure 4-5.
LIN Wake-up Diagram from Sleep Mode
4.2.3
Wake Up from Sleep/Silent Mode at an Insufficient Falling Edge at Pin LIN
If the ATA6620N is in Sleep mode or Silent mode and the voltage at the LIN Bus falls to a value
lower than VLINL < V
S – 3.3V (see “Electrical Characteristics” numbers 9.5 and 9.6) but higher
than 0.6
× V
S, then a wake up is detected and the circuit switches to pre-normal mode and the
internal NMOS- transistor connected to the pin TXD is switched on and pulls down the pin TXD
to Ground. The following figure shows the corresponding diagram for the wake-up from silent
mode. The wake-up process from Sleep mode works analogue to this.
LIN Bus
Bus wake-up filtering time
tbus
On state
Off state
Regulator wake-up time
EN
Node in sleep mode
Microcontroller start-up
time delay
EN High
Low or floating
RXD
Low
Low or floating
NRES
Reset
time
Normal Mode
Pre-normal Mode
VCC
TXD
VLIN < 0.4 VS
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