HIN202, HIN206, HIN207, HIN208, HIN211, HIN213
Typical Performance Curves
12
V- SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (|V|)
0.1µF
10
8
6
4
2
0
3.0
12
10
8
6
4
2
0
V- (V
CC
= 4V)
T
A
= 25
o
C
TRANSMITTER OUTPUTS
OPEN CIRCUIT
0
5
10
15
20
25
V+ (V
CC
= 5V)
V+ (V
CC
= 4V)
V- (V
CC
= 5V)
3.5
4.0
4.5
V
CC
5.0
5.5
6.0
30
35
|I
LOAD
| (mA)
FIGURE 5.
V- SUPPLY VOLTAGE vs V
CC
FIGURE 6. V+, V- OUTPUT VOLTAGE vs LOAD
Test Circuits (HIN202)
+4.5V TO
+5.5V INPUT
0.1µF
C3
0.1µF
C1
+
-
-
+
1 C1+
2 V+
3 C1-
0.1µF +
C2 -
0.1µF C4
3kΩ
T2
OUTPUT
RS-232
±30V
INPUT
-
+
4 C2+
5 C2-
6 V-
7 T2
OUT
8 R2
IN
V
CC
16
GND 15
T1
OUT
14
R1
IN
13
R1
OUT
12
T1
IN
11
T2
IN
10
R2
OUT
9
3kΩ
T1 OUTPUT
RS-232
±30V
INPUT
TTL/CMOS OUTPUT
TTL/CMOS INPUT
TTL/CMOS INPUT
TTL/CMOS OUTPUT
R
OUT
= V
IN
/I
T2
OUT
T1
OUT
V
IN
=
±2V
A
1 C1+
2 V+
3 C1-
4 C2+
5 C2-
6 V-
7 T2
OUT
8 R2
IN
V
CC
16
GND 15
T1
OUT
14
R1
IN
13
R1
OUT
12
T1
IN
11
T2
IN
10
R2
OUT
9
FIGURE 7. GENERAL TEST CIRCUIT
FIGURE 8. POWER-OFF SOURCE RESISTANCE
CONFIGURATION
Application Information
The HIN2XX may be used for all RS-232 data terminal and
communication links. It is particularly useful in applications
where
±12V
power supplies are not available for
conventional RS-232 interface circuits. The applications
presented represent typical interface configurations.
A simple duplex RS-232 port with CTS/RTS handshaking is
illustrated in Figure 9. Fixed output signals such as DTR
(data terminal ready) and DSRS (data signaling rate select)
is generated by driving them through a 5kW resistor
connected to V+.
In applications requiring four RS-232 inputs and outputs
(Figure 10), note that each circuit requires two charge pump
capacitors (C1 and C2) but can share common reservoir
capacitors (C3 and C4). The benefit of sharing common
reservoir capacitors is the elimination of two capacitors and
the reduction of the charge pump source impedance which
effectively increases the output swing of the transmitters.
9
INTERSIL [ INTERSIL CORPORATION ]
