Datasheet

MAX13410E–MAX13415E
RS-485 Transceiver with Integrated Low-Dropout
Regulator and AutoDirection Control
22 ______________________________________________________________________________________
A
GND
DI
1
2
8
7
V
CC
B
V
REG
RO
3
4
6
5
R
D
+
MAX13414E
MAX13415E
LDO
DE/RE
ISO_V
CC
ISO_V
CC
ISO_V
CC
MCU AND
RELATED
CIRCUITRY
V
SYS
V
SYS
V
SYS
R
t
R
t
C
S
1μF
ISO_V
CC
0.1μF
UNREGULATED ISOLATED
POWER SUPPLY
Figure 11. Typical Application Circuit for the MAX13414E/MAX13415E
MAX845
D1
D2FS
GND1 GND2
V
CC
1
8
46
27
3
V
IN
SD
FREQUENCY
SELECT
C2
C1
C3
5V AT 150mA
OUTPUT
5V
ON / OFF
T1
CR2
CR1
Figure 12. Using the MAX845 to Obtain an Isolated Power Supply
MAX5021/
MAX5022
V
OUT
V
SUPPLY
OPTO NDRV
CS
V
CC
V
IN
GND
Figure 13. The MAX5021 and MAX5022 provide an isolated
power supply with tighter regulation due to feedback using an
opto-isolator coupler.