H11AG1 Datasheet, PDF (5/8 Pages) QT Optoelectronics – PHOTOTRANSISTOR OPTOCOUPLERS

PHOTOTRANSISTOR OPTOCOUPLERS
H11AG1
H11AG2
H11AG3
47Ω
≤ 25A
LOAD
+5V ^15K
H11AG1
CMOS
CONTROL
≥ 0.16mA
75KΩ
47Ω
1.5MΩ
SC160B
22K
2N4256
150pF
C203D
DT230H
(4)
0.1
V130LA20A
120V
60Hz
SUPPLY
Figure 8. CMOS Input, 3KW, Zero Voltage Switching Solid State Relay
The H11AG1’s superior performance at low input currents allows standard CMOS logic circuits to directly operate a 25A solid state relay.
Circuit operation is as follows: power switching is provided by the SC160B, 25A triac. Its gate is controlled by the C203B via the DT230H
rectifier bridge. The C203B turn-on is inhibited by the 2N4256 when line voltage is above 12V and/or the H11AG is off. False trigger and
dv/dt protection are provided by the combination of the MOV^ varistor and RC snubber network.
R₁
AC
INPUT
VOLTAGE
1N148
C₁
H11AG1
4.7MΩ
47KΩ
C₂
0.1
3V ≤ V_CC ≤ 10V
4093 or
74HC14
4.7KΩ
INPUT
40-90 VRMS
20 Hz
95-135 VRMS
60 Hz
200-280 VRMS
50/60 Hz
R1
75 K
1/10 W
180 K
1/10 W
390 K
1/4 W
C1
0.1 µF
100 V
12 ηF
200 V
6.80 ηF
400 V
Z
109K
285K
550K
DC component of input voltage is ignored due to C1
Figure 9. Telephone Ring Detector/A.C. Line CMOS Input Isolator
The H11AG1 uses less input power than the neon bulb traditionally used to monitor telephone and line voltages. Additionally. response
time can be tailored to ignore telephone dial tap, switching transients and other undesired signals by modifying the value of C2. The high
impedance to line voltage also can simply board layout spacing requirements.
DS300213 1/28/02
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