Datasheet
SLLS206J − MAY 1995 − REVISED NOVEMBER 2004
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
Diodes placed in series with the V
DD
and V
SS
leads protect the GD65232 and GD75232 in the fault condition in which
the device outputs are shorted to ±15 V and the power supplies are at low and provide low-impedance paths to ground
(see Figure 15).
V
DD
V
SS
±15 V
Output
GD65232,
GD75232
GD65232,
GD75232
V
SS
V
DD
Figure 15. Power-Supply Protection to Meet Power-Off Fault Conditions of TIA/EIA-232-F
GD65232,
GD75232
5 V
TL16C450
ACE
−12 V
TIA/EIA-232-F
DB9S
Connector
11
12
13
14
15
16
17
18
19
20
10
9
8
7
6
5
4
3
2
1
43
37
40
13
36
11
41
42
RI
DTR
CTS
SO
RTS
SI
DSR
DCD
12 V
5
9
6
1
C3
C2
C1
GND
RY5
DA3
RY4
DA2
DA1
RY3
RY2
RY1
V
CC
RA5
DY3
RA4
DY2
DY1
RA3
RA2
RA1
V
DD
V
SS
RI
DTR
CTS
TX
RTS
RX
DSR
DCD
Figure 16. Typical Connection