AMIS-40616
LIN Transceiver with 5V Voltage Regulator
Data Sheet
Wake
V
BB
Detection of Local Wake-Up
Wake
V
BB
50% V
BB
typ.
Detection of Local Wake-Up
50% V
BB
typ.
Sleep Mode
Stand-by Mode
t
Sleep Mode
Stand-by Mode
PC20060427.3
t
Figure 5: Local Wake-up Signal
A remote wake-up is
only
detected if a combination of (1) a falling edge at the LIN pin (transition from recessive to dominant) is
followed by (2) a dominant level maintained for a time period > t
WAKE
and (3) again a rising edge at pin LIN (transition from dominant to
recessive) happens.
LIN
Detection of Remote Wake-Up
V
BB
t
WAKE
40% Vbb
LIN dominant level
Sleep Mode
Stand-by Mode
60% Vbb
LIN recessive level
t
PC20060427.2
Figure 6: Remote Wake-up Behavior
The wake-up source is distinguished by pin RxD in the stand-by mode:
•
RxD remains high after power-up or local wake-up.
•
RxD is kept low until normal mode is entered after a remote wake-up (LIN).
AMI Semiconductor
– January 2007, M-20545-001
8
www.amis.com
AMI [ AMI SEMICONDUCTOR ]
