HIN202 Просмотр технического описания (PDF) - Intersil
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HIN202 Datasheet PDF : 19 Pages
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HIN202, HIN206, HIN207, HIN208, HIN211, HIN213
Typical Performance Curves
12
0.1µF
10
8
6
4
2
0
3.0
3.5
4.0
4.5
5.0
5.5
6.0
VCC
FIGURE 5. V- SUPPLY VOLTAGE vs VCC
12
10
8
V+ (VCC = 5V)
6
4
V- (VCC = 4V)
V+ (VCC = 4V)
2 TA = 25°C
TRANSMITTER OUTPUTS
OPEN CIRCUIT
0
0
5
10
15
20
V- (VCC = 5V)
25
30
35
|ILOAD| (mA)
FIGURE 6. V+, V- OUTPUT VOLTAGE vs LOAD
Test Circuits (HIN202)
0.1µF -
C3 +
0.1µF +
C1 -
1 C1+
2 V+
3 C1-
VCC 16
GND 15
T1OUT 14
0.1µF +
C2 -
4 C2+
5 C2-
R1IN 13
R1OUT 12
6 V-
T1IN 11
0.1µF C4
3kΩ
7 T2OUT T2IN 10
T2
OUTPUT
8 R2IN R2OUT 9
RS-232
±30V INPUT
+4.5V TO
+5.5V INPUT
3kΩ
T1 OUTPUT
RS-232 ±30V INPUT
TTL/CMOS OUTPUT
TTL/CMOS INPUT
TTL/CMOS INPUT
TTL/CMOS OUTPUT
FIGURE 7. GENERAL TEST CIRCUIT
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+.
1 C1+
2 V+
VCC 16
GND 15
3 C1-
4 C2+
T1OUT 14
R1IN 13
5 C2- R1OUT 12
6 V-
T1IN 11
7 T2OUT T2IN 10
8 R2IN R2OUT 9
ROUT = VIN/I
VIN = ±2V
T2OUT
T1OUT
A
FIGURE 8. POWER-OFF SOURCE RESISTANCE
CONFIGURATION
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.
10
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