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IL4116 700 V IL4117 800 V IL4118
600 V
FEATURES * High Input Sensltlvity: IFT=1.3 mA, PF=1.0; IFT=3.5 mA, Typlcal PF < 1.0 * Zero Voltage Crosslng * 600/700/800 V Blocklng Voltage * 300 mA On-State Current * High Statlc dv/dt 10,000 V/sec., typical * Inverse Parallel SCRs Provide Commutatlng dv/dt >10 KV/msec. * Very Low Leakage <10 mA * Isolation Test Voltage from Double Molded Package 5300 VACRMS * Package, 6-Pln DIP * Underwriters Lab File #E52744 DESCRIPTION The IL411x consists of an AlGaAs IRLED optically coupled to a photosensitive zero crossing TRIAC network. The TRIAC consists of two inverse parallel connected monolithic SCRs. These three semiconductors are assembled in a six pin 0.3 inch dual inline package, using high insulation double molded, over/under leadframe construction. High input sensitivity is achieved by using an emitter follower phototransistor and a cascaded SCR predriver resulting in an LED trigger current of less than 1.3 mA(DC). The IL411x uses two discrete SCRs resulting in a commutating dV/dt greater than 10 KV/ms The use of a proprietary dv/dt clamp results in a static dv/dt of greater than 10 KV/s. This clamp circuit has a MOSFET that is enhanced when high dv/dt spikes occur between MT1 and MT2 of the TRIAC. When conducting, the FET clamps the base of the phototransistor, disabling the first stage SCR predriver. The zero cross line voltage detection circuit consists of two enhancement MOSFETS and a photodiode. The inhibit voltage of the network is determined by the enhancement voltage of the Nchannel FET. The P-channel FET is enabled by a photocurrent source that permits the FET to conduct the main voltage to gate on the N-channel FET. Once the main voltage can enable the N-channel, it clamps the base of the phototransistor, disabling the first stage SCR predriver. The blocking voltage of up to 800 V permits control of off-line voltages up to 240 VAC, with a safety factor of more than two, and is sufficient for as much as 380 VAC. Current handling capability is up to 300 mA RMS continuous at 25C. The IL411x isolates low-voltage logic from 120, 240, and 380 VAC lines to control resistive, inductive, or capacitive loads including motors, solenoids, high current thyristors or TRIAC and relays. Applications include solid-state relays, industrial controls, office equipment, and consumer appliances.
ZERO VOLTAGE CROSSING TRIAC DRIVER OPTOCOUPLER
Dimensions in inches (mm)
Pin One ID. 3 .248 (6.30) .256 (6.50) 4 5 6 2 1 LED 1 Anode LED 2 Cathode NC 3 ZCC* 6 Triac 2 Anode 5 4 Substrate do not connect Triac Anode 1
.335 (8.50) .343 (8.70) .039 (1.00) Min. 4 Typ. .018 (0.45) .022 (0.55)
*Zero Crossing Circuit
.300 (7.62) Typ. .130 (3.30) .150 (3.81) 18 Typ. .020 (.051) Min. .031 (0.80) .035 (0.90) .100 (2.54) Typ. .010 (.25) .014 (.35) .300 (7.62) .347 (8.82) .110 (2.79) .150 (3.81)
Maximum Ratings Emitter Reverse Voltage ...................................................................................6 V Forward Current.............................................................................. 60 mA Surge Current ................................................................................... 2.5 A Power Dissipation .........................................................................100 mW Derate Linearly from 25C ..................................................... 1.33 mW/C Thermal Resistance................................................................... 750 C/W Detector Peak Off-State Voltage IL4116 ...........................................................................................600 V IL4117 ...........................................................................................700 V IL4118 ...........................................................................................800 V RMS On-State Current .................................................................. 300 mA Single Cycle Surge .............................................................................. 3 A Total Power Dissipation ................................................................500 mW Derate Linearly from 25C ....................................................... 6.6 mW/C Thermal Resistance.................................................................... 150C/W Package Storage Temperature ..................................................... -55C to +150C Operating Temperature ................................................. -55C to +100C Lead Soldering Temperature ................................................ 260C/5 sec. Isolation Test Voltage ...........................................................5300 VACRMS Isolation Resistance VIO=500 V, TA=25C.................................................................. 1012 VIO=500 V, TA=100C................................................................ 1011
5-1
Characteristics (TA=25C)
Parameter Emitter Forward Voltage Breakdown Voltage Reverse Current Capacitance Thermal Resistance, Junction to Lead Output Detector Repetitive Peak Off-State Voltage IL4116 IL4117 IL4118 Off-State Voltage IL4116 IL4117 IL4118 Off-State Current On-State Voltage On-State Current Surge (Non-Repetitive, On-State Current) Holding Current Latchiing Current LED Trigger Current Zero Cross Inhibit Voltage Turn-On Time Turn-Off Time Critical State of Rise: Off-State Voltage Commutating Voltage Commutating Current Thermal Resistance, Junction to Lead Package Critical State of Rise of Couplrd Input-Output Voltage Common Mode Coupling Capacitor Package Capacitance dv(IO)/dt CCM CIO 10,000 0.01 0.8 V/s pF pF f=1 MHz, VIO=0 V IT=0 A, VRM=VDM=424 VAC VDRM VDRM VDRM VD(RMS) VD(RMS) VD(RMS) ID(RMS) VTM ITM ITSM IH IL IFT VIH tON tOFF dv(MT)/dt dv(COM)/dt di/dt RTHJL 10,000 2000 10,000 2000 100 150 65 5 0.7 15 35 50 1.3 25 600 700 800 424 494 565 650 750 850 460 536 613 10 1.7 100 3 300 3 200 V V V V V V A V mA A A mA mA V s s V/s V/s V/s V/s A/ms IDRM=100 mA IDRM=100 mA IDRM=100 mA ID(RMS)=70 A ID(RMS)=70 A ID(RMS)=70 A VD=600 V, TA=100C IT=300 mA PF=1.0, VT(RMS)=1.7 V f=50 Hz VT=3 V VT=2.2 V VAK=5 V IF=Rated IFT VRM=VDM=424 VAC PF=1.0, IT=300 mA VRM, VDM=400 VAC, TA=25C VRM, VDM=400 VAC, TA=80C VRM, VDM=400 VAC, TA=25C VRM, VDM=400 VAC, TA=80C IT=300 mA VF VBR IR CO RTHJL 6 1.3 30 0.1 40 750 10 1.5 V V A pF IF-20 mA IR=10 A VR=6 V VF=0 V, f=1 MHz Symbol Min. Typ. Max. Unit Condition
C/W
C/W
Figure 1. LED forward current vs. forward voltage
Figure 2. Forward voltage versus forward current
IL4116/4117/4118
5-2
Figure 3. Peak LED current vs. duty factor, Tau
Power Factor Considerations A snubber isn't needed to eliminate false operation of the TRIAC driver because of the IL411's high static and commutating dv/dt with loads between 1 and 0.8 power factors. When inductive loads with power factors less than 0.8 are being driven, include a RC snubber or a single capacitor directly across the device to damp the peak commutating dv/dt spike. Normally a commutating dv/dt causes a turning-off device to stay on due to the stored energy remaining in the turning-off device. But in the case of a zero voltage crossing optotriac, the commutating dv/dt spikes can inhibit one half of the TRIAC from turning on. If the spike potential exceeds the inhibit voltage of the zero cross detection circuit, half of the TRIAC will be heldoff and not turn-on. This hold-off condition can be eliminated by using a snubber or capacitor placed directly across the optotriac as shown in Figure 7. Note that the value of the capacitor increases as a function of the load current. The hold-off condition also can be eliminated by providing a higher level of LED drive current. The higher LED drive provides a larger photocurrent which causer. the phototransistor to turn-on before the commutating spike has activated the zero cross network. Figure 8 shows the relationship of the LED drive for power factors of less than 1.0. The curve shows that if a device requires 1.5 mA for a resistive load, then 1.8 times (2.7 mA) that amount would be required to control an inductive load whose power factor is less than 0.3.
Figure 4. Maximum LED power dissipation
Figure 5. On-state terminal voltage vs. terminal current
Figure 7. Shunt capacitance versus load current versus power factor
Figure 6. Maximum output power dissipation
Figure 8. Normalized LED trigger current
IL4116/4117/4118
5-3

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