Datasheet

APPLICATION INFORMATION
V
BAT
V
SUP
V
DD
V
DD
V
SUP
INH
NWake
TPIC1021A
MCU
TMS470
MASTER
NODE
LIN
Controller
or
SCI/UART
(1)
EN
RXD
TXD
MCU w/o
pullup
(2)
V
DD
I/O
GND
2
8 3 7
1
4 5
6
Master
Node
Pullup
(3)
1 kW
LIN
220 pF
V
SUP
TPSxxxx
V
SUP
V
DD
V
DD
V
SUP
INH
NWake
TPIC1021A
MCU
TMS470
LIN
Controller
or
SCI/UART
(1)
EN
TXD
GND
2
8 3 7
1
4 5
6
LIN
220 pF
RXD
SLAVE
NODE
LIN Bus
I/O
I/O
TPSxxxx
V
SUP
V
DD
MCU w/o
pullup
(2)
V
DD
I/O
TPIC1021A-Q1
www.ti.com .......................................................................................................................................................... SLIS117A – AUGUST 2007 – REVISED JUNE 2009
(1) RXD on MCU or LIN slave has internal pullup, no external pullup resistor is needed.
(2) RXD on MCU or LIN slave without internal pullup, requires external pullup resistor.
(3) Master node applications require an external 1-k Ω pullup resistor and serial diode.
Figure 8.
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Product Folder Link(s): TPIC1021A-Q1