MCP2021-330E-P MICROCHIP [Microchip Technology], MCP2021-330E-P Datasheet - Page 15

• Manufacturer Part Number: MCP2021-330E-P
• Description: LIN Transceiver with Voltage Regulator
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 1-7:
FIGURE 1-8:
© 2005-2012 Microchip Technology Inc.
V
BB
Note 1: See
2: C
3: This diode is only needed if CS/LWAKE is connected to a 12V supply.
4: Transient suppressor diode. Vclamp L = 43V.
5: These components are required for additional load dump protection above 43V.
6: Required if CPU does not have internal pull-up.
INT or MCLR
1 kΩ
F
MCP202X
is the filter capacitor for the external voltage supply.
LIN bus
Master
Figure 2-3
RXD
TXD
V
µC
Typical MCP2022/MCP2022P Application.
Typical LIN Network Configuration.
I/O
I/O
DD
WAKE-UP
220 kΩ
for correct capacity and ESR for stable operation.
(3)
+12
100 pF
MCP202X
LIN bus
V
Slave 1
DD
µC
(6)
C
G
40m
+ Return
RESET
V
TXD
RXD
FAULT/TXE
CS/LWAKE
REG
V
43V
SS
(5)
+12
MCP202X
V
L
MCP2021/2/1P/2P
LIN bus
BB
BUS
Slave 2
R
µC
TP
C
(5)
F
Master Node Only
1 kΩ
+12
27V
Slave n <16
MCP202X
LIN bus
(4)
DS22018F-page 15
µC
LIN bus
LIN Bus