IL4116-X006 Vishay, IL4116-X006 Datasheet - Page 5

• Manufacturer Part Number: IL4116-X006
• Description: Triac & SCR Output Optocouplers Phototriac Output, Zero Crossing
• Manufacturer: Vishay

Specifications of IL4116-X006

• Configuration: 1
• Maximum Continuous Output Current: 300 mA
• Maximum Input Current: 60 mA
• Maximum Operating Temperature: + 100 C
• Maximum Power Dissipation: 500 mW
• Maximum Reverse Diode Voltage: 6 V
• Maximum Turn-on Time: 35 us (Typ)
• Minimum Operating Temperature: - 55 C
• Output Type: AC
• Package / Case: PDIP-6
• Typical Input Voltage: 1.3 V
• Zero-crossing Circuit: Yes
• Zero-crossing Voltage: 25 V
• Output Device: Triac
• Isolation Voltage: 5300 Vrms
• Peak Output Voltage (vdrm): 650 V
• Maximum Input Voltage: 1.5 V
• Maximum Output Voltage: 455 VAC
• Minimum Trigger Current: 0.7 mA (Typ)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TRIGGER CURRENT VS. TEMPERATURE AND VOLTAGE
The trigger current of the IL4116, IL4117, IL4118 has a
positive temperature gradient and also is dependent on the
terminal voltage as shown as the fig. 7.
INDUCTIVE AND RESISTIVE LOADS
For inductive loads, there is phase shift between voltage and current, shown in the fig. 8.
The voltage across the triac will rise rapidly at the time the
current through the power handling triac falls below the
holding current and the triac ceases to conduct. The rise
rate of voltage at the current commutation is called
commutating dV/dt. There would be two potential problems
for ZC phototriac control if the commutating dV/dt is too
high. One is lost control to turn off, another is failed to keep
the triac on.
Lost control to turn off
If the commutating dV/dt is too high, more than its critical
rate (dV/dt
LED drive current I
Document Number: 83628
Rev. 1.8, 20-Oct-10
21607
21611
Temperature and Operating Voltage (50 Hz)
crq
2.0
1.5
1.0
0.0
2.5
0.5
), the triac may resume conduction even if the
0
50
Fig. 7 - Trigger Current vs.
F
is off and control is lost.
85 °C
50 °C
100 150 200 250
Resistive load
V
RMS
100 °C
(V)
For technical questions, contact:
Commutating dV/dt
I
F(on)
25 °C
Optocoupler, Phototriac Output, Zero
Fig. 8 - Waveforms of Resistive and Inductive Loads
Crossing, Very Low Input Current
300 350
I
F(off)
AC line
voltage
Voltage
across triac
AC current
through
triac
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For the operating voltage 250 V
range - 40 °C to 85 °C, the I
I
Considering - 30 % degradation over time, the trigger
current minimum is I
In order to achieve control with certain inductive loads of
power factors is less than 0.8, the rate of rise in voltage
(dV/dt) must be limited by a series RC network placed in
parallel with the power handling triac. The RC network is
called snubber circuit. Note that the value of the capacitor
increases as a function of the load current as shown in fig. 9.
Failed to keep on
As a zero-crossing phototriac, the commutating dV/dt
spikes can inhibit one half of the TRIAC from keeping on If
the spike potential exceeds the inhibit voltage of the zero
cross detection circuit, even if the LED drive current I
FT1
(1.3 mA, max.).
Inductive load
IL4116, IL4117, IL4118
F
= 1.3 x 2.3 x 130 % = 4 mA
Commutating dV/dt
Vishay Semiconductors
F
should be at least 2.3 x of the
I
F(on)
RMS
over the temperature
I
F(off)
AC line
voltage
Voltage
across triac
www.vishay.com
AC current
through
triac
F
is on.
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