Linear Technology LTM2881-3 RS485 µModule Isolator Demo Board (3.3V Supply) DC1503A-A DC1503A-A Datenbogen
Produktcode
DC1503A-A
LTM2881
20
2881ff
Typical applicaTions
Figure 21. Switched 5V Power with Isolated CMOS Logic Connection with Low Voltage Interface
Figure 22. 4-Wire Full Duplex Self Biasing for Unshielded CAT5 Connection
2881 F21
A
V
CC2
RO
V
L
TE
RE
DE
DI
D
OUT
GND
GND2
V
CC
V
CC
CMOS INPUT
CMOS OUTPUT
B
Z
1.8V
D
IN
PWR
ON
OFF
REGULATED 5V
SWITCHED 5V
IRLML6402
330k
LTM2881
ISOLA
TION BARRIER
A
V
L
RE
DE
RO
DI
GND
V
CC
V
CC
B
Y
Z
PWR
GND2
LTM2881
ISOLA
TION BARRIER
Y
V
L
RE
RO
DE
DI
GND
V
CC
V
CCB
2881 F22
Z
A
B
PWR
GND2
BUS INHERITED
LTM2881
10nF
51Ω
51Ω
51Ω
51Ω
10nF
ISOLA
TION BARRIER
B