User manual

Drawings and Schematics
 2011 Microchip Technology Inc. DS70319B-page 27
FIGURE A-5: LIN CIRCUIT SCHEMATICS
J12 used for Master/Slave select
J13 used for Master/Slave select
C1
10 uF
C2
10uF
D1
43V
D3
D5
D6
43V
D7
27V
D8
J8
LIN Power
+3.3V
+9V
LIN Power
LIN Power
R1
100k
R2
1k
R3
100k
R4
1k
J9
LIN Power
+12V
J10
J11
LIN Power
J12
J13
C3
22uF 25V
C4
0.1 uF
C7
0.1uF
C8
10uF
C9
10uF
C10
DNP
C11
DNP
D4
27V
+3.3V
U1
MCP2021
U2
MCP2021
1
2
3
1
2
1
2
3
1
2
3
Rxd
RF2/U1RX_E
CS/WAKE
RE8/INT1
VREG
Txd
RF3/U1TX_E
VSS
LIN
VBAT
FAULT/TXE
RD15/U1RTS_E
Rxd
RF4/PMPA9/U2RX
CS/WAKE
RA14/INT3
VREG
Txd
RF5/PMPA8/U2TX
VSS
LIN
VBAT
FAULT/TXE
RF13/U2RTS
LIN Power
LIN1
LIN2