MCP2021-500E/MD Microchip Technology, MCP2021-500E/MD Datasheet - Page 5

• Manufacturer Part Number: MCP2021-500E/MD
• Description: IC LIN TXRX ON-BOARD VREG 8DFN
• Manufacturer: Microchip Technology
• Type: Transceiverr

Specifications of MCP2021-500E/MD

• Number Of Drivers/receivers: 1/1
• Protocol: LIN
• Voltage - Supply: 6 V ~ 18 V
• Mounting Type: Surface Mount
• Package / Case: 8-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: APGRD004 - REF DESIGN MOD AUTO AMBNT LIGHTAC164130 - BOARD DAUGHT PICTL PLUS ECAN/LIN
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

TABLE 1-1:
1.4
EXAMPLE 1-1:
© 2009 Microchip Technology Inc.
POR
READY
OPERATION
POWER DOWN
TRANSMITTER-
OFF
State
Note 1: See
Typical Applications
2: C
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..
F
OVERVIEW OF OPERATIONAL MODES
Transmitter
is the filter capacitor for the external voltage supply.
Figure 2-3
RXD
TXD
V
TYPICAL MCP2021 APPLICATION
I/O
I/O
DD
OFF
OFF
OFF
OFF
WAKE-UP
ON
220 kΩ
for correct capacity and ESR for stable operation. .
(3)
+12
Receiver
Activity
Activity
Detect
Detect
OFF
ON
ON
100nF
Regulator
Voltage
OFF
OFF
ON
ON
ON
C
G
V
V
TXD
RXD
CS/LWAKE
FAULT/TXE
SS
REG
Read CS/LWAKE, if LOW, then READY,
if HIGH, Operational mode
If CS/LWAKE high level, then Operation
mode
If CS/LWAKE low level, then Power down
If FAULT/TXE low level, then Transmitter-
Off mode
On LIN bus falling, go to READY mode.
On CS/LWAKE high level, go to
Operational mode
If CS/LWAKE low level, then Power down
If FAULT/TXE high, then Operation mode
43V
(5)
+12
V
L
BB
BUS
R
Operation
TP
C
(5)
F
Master Node Only
1 kΩ
MCP2021/2
+12
27V
(4)
DS22018E-page 5
Bus Off state
Normal
Operation
mode
Low Power
mode
Comments
LIN Bus