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MCP2021 Datasheet(PDF) 7 Page - Microchip Technology

Part # MCP2021
Description  LIN Transceiver with Voltage Regulator
PDF  46 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP2021 Datasheet(HTML) 7 Page - Microchip Technology

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© 2009 Microchip Technology Inc.
DS22018E-page 7
MCP2021/2
EXAMPLE 1-3:
TYPICAL MCP2022 APPLICATION
FIGURE 1-3:
TYPICAL LIN NETWORK CONFIGURATION
LIN Bus
27V
(4)
VBB
LBUS
VREG
TXD
RXD
VSS
VDD
TXD
RXD
+12
CF
CG
CS/LWAKE
I/O
FAULT/TXE
I/O
43V
(5)
1k
Ω
+12
Master Node Only
+12
220 k
Ω
WAKE-UP
Note 1: See Figure 2-3 for correct capacity and ESR for stable operation.
2: CF is the filter capacitor for the external voltage supply.
3: This diode is only needed if CS/LWAKE is connected to 12V supply.
4: Transient suppressor diode. Vclamp L = 43V.
5: These components are required for additional load dump protection above 43V.
(3)
RTP
(5)
100 nF
RESET
MCLR
5V
1k
Ω
LIN bus
MCP202X
Master
µC
1k
Ω
VBB
Slave 1
µC
Slave 2
µC
Slave n <16
µC
40m
+ Return
LIN bus
LIN bus
MCP202X
LIN bus
MCP202X
LIN bus
MCP202X



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