Datasheet

MAX845
Isolated Transformer Driver
for PCMCIA Applications
10 ______________________________________________________________________________________
C3
0.1µF
C1
0.1µF
C2
2.2µF
ISO 5V
ISOLATION
BARRIER
5V
V
IN
MAX845
D1
D2
FS
GND1 GND2
V
CC
1
8
6
2 7
3
1N5817
SD
4
ON / OFF
390Ω
*74HC04
DE
RO
390Ω
*74HC04
DI
3.3k
1
3
5
4
6
1
2
4
3
5
4
1
3
6
*74HC04
*74HC04 OR EQUIVALENT
MAX883
56 4
SHDNSET GND
MAX481
MAX483
MAX485
MAX487
52
RE GND
C4
2.2µF
IN OUT
8 2
1N5817
390Ω
4
3.3k
3.3k
3
1
8
6
7
DI
DE
RO
A
B
PC410 / 417
PC357T
PC410 / 417
ICT:1.3CT
V
CC
485
I/O
N.C.
Figure 9. Typical RS-485 Application Circuit