AMIS-40615 Datasheet, PDF (8/17 Pages) AMI SEMICONDUCTOR – LIN Transceiver with 3.3V Voltage Regulator

AMIS-40615
LIN Transceiver with 3.3V Voltage Regulator
Data Sheet
Wake ^{Detection of Local Wake-Up}
Wake ^{Detection of Local Wake-Up}
V_BB
V_BB
50% V_BB typ.
50% V_BB typ.
Sleep Mode
Stand-by Mode
t
Sleep Mode
Figure 5: Local Wake-up Signal
t
Stand-by Mode
PC20060427.3
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
V_BB
40% Vbb
Detection of Remote Wake-Up
t_WAKE
Sleep Mode
60% Vbb
LIN dominant level
Stand-by Mode
Figure 6: Remote Wake-up Behavior
LIN recessive level
t
PC20060427.2
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 – March 2007, M-20544-001
8
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