MAX3535E Maxim, MAX3535E Datasheet - Page 19

• Manufacturer Part Number: MAX3535E
• Description: +3V to +5V / 2500VRMS Isolated RS-485/RS-422 Transceivers with 15kV ESD Protection
• Manufacturer: Maxim

The MAX3535E/MXL1535E transceivers facilitate bi-
directional data communications on multipoint bus
transmission lines. Figure 11 shows a typical RS-485
Figure 11. Typical Half-Duplex Multidrop RS-485 Network
+3V to +5V, 2500V
0.1µF
Applications Information
Transceivers with ±15kV ESD Protection
______________________________________________________________________________________
RE
+3.3V
10µF
RO
GND1
R
Typical Applications
V
RO1
CC1
DE
RE
DI
DE
A
ST1
MAX3535E
D
DI
B
ST2
TRANSFORMER
TRANSCEIVER
BARRIER
DRIVER
RE
ISOLATION BARRIER
RMS
TGM-240
RO
R
TRANSCEIVER
BARRIER
BAT54C
DE
BAT54C
10µF
1/2
A
1/2
Isolated RS-485/RS-422
multidrop-network applications circuit. Figure 12 shows
the MAX3535E/MXL1535E functioning as line repeaters
with cable lengths longer than 4000ft. To minimize
reflections, terminate the line at both ends in its charac-
teristic impedance. Keep stub lengths off the main line
as short as possible.
D
DI
GND2
B
REGULATOR
VOLTAGE
RECEIVER
0.1µF
D
V
CC2
DRIVER
R
V
CC2
120Ω
RO2
A
B
Y
Z
SLO
A
B
CONTROL GROUND
RS-485 GROUND
120Ω
R
RE
D
DE
DI
RO
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