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IL4108
ZERO VOLTAGE CROSSING 800 V TRIAC DRIVER OPTOCOUPLER
FEATURES * On-State Current, 300 mA * Zero Voltage Crossing * Blocking Voltage, 800 V * Isolation Test Voltage 5300 VACRMS * High Input Sensitivity IFT=2 mA, PF=1.0 IFT=5 mA, PF1.0 * High Static dv/dt 10,000 V/ s * Inverse Parallel SCRs Provide Commutating dv/dt >10K V/ s * Very Low Leakage <10 A * Small 6-Pin DIP Package * Underwriters Lab File #E52744 * VDE Approval #0884 (Optional with Option 1, Add -X001 Suffix) Maximum Ratings Emitter Reverse Voltage ..................................................... 6 V Forward Current ................................................ 60 mA Surge Current ....................................................... 2.5 A Thermal Resistance....................................... 750 C/W Derate from 25C ...................................... 1.33 mW/C Detector Peak Off-state Voltage......................................... 800 V Peak Reverse Voltage ......................................... 800 V RMS On-state Current ..................................... 300 mA Single Cycle Surge.................................................. 3 A Thermal Resistance....................................... 125 C/W Total Power Dissipation ................................... 500 mW Derate from 25C ........................................ 6.6 mW/C Package Isolation Test Voltage (between emitter and detector, climate per DIN 40046, part 2, Nov. 74 (t=1 min.).................... 5300 VACRMS Pollution Degree (DIN VDE 0109) .............................. 2 Creepage Distance ........................................... 7 mm Clearance.......................................................... 7 mm Comparative Tracking Index per DIN IEC 112/VDE 0303 part 1, Group IIIa per DIN VDE 6110................................................... 175 Isolation Resistance VIO=500 V, TA=25C .................................... 1012 VIO=500 V, TA=100C .................................. 1011 Storage Temperature Range ............. -55C to +125C Ambient Temperature Range ............ -55C to +100C Soldering Temperature (max. 10 sec. dip soldering 0.5 mm from case bottom)................................................... 260C Package Dimensions in inches (mm)
Pin One ID. 3 .248 (6.30) .256 (6.50) 4 5 6 2 1
.335 (8.50) .343 (8.70) .039 (1.00) min. 4 typ. .018 (0.45) .022 (0.55)
Triac MT2 Substrate LED 5 do not 2 Cathode connect Triac 4 NC 3 ZCC* MT1 *Zero Crossing Circuit
6 .300 (7.62) typ.
LED Anode 1
.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)
DESCRIPTION The IL4108 consists of a GaAs 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 in-line 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 2 mA (DC). The IL4108 uses two discrete SCRs resulting in a commutating dV/dt greater than 10KV/s. The use of a proprietary dv/dt clamp results in a static dV/dt of greater than 10KV/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 N-channel FET. The Pchannel 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 800V blocking voltage permits control of off-line voltages up to 240VAC, with a safety factor of more than two, and is sufficient for as much as 380VAC. The IL4108 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.
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Electrical Characteristics
Parameter Emitter Forward Voltage Breakdown Voltage Reverse Current Capacitance Thermal Resistance, Junction to Lead Output Detector Repetitive Peak Off-state Voltage Off-state Voltage Off-state Current Off-state Current On-state Voltage On-state Current Surge (Non-repetitive On-state Current) Trigger Current 1 Trigger Current 2 Trigger Current Termperature Gradient Inhibit Voltage Temperature Gradient Off-state Current in Inhibit State Capacitance between Input and Output Circuit Holding Current Latching Current Zero Cross Inhibit Voltage Turn-on Time Turn-off Time Critical Rate of Rise of Off-State Voltage Critical Rate of Rise of Voltage at Current Commutation dv/dtcrq dv/dtcrq Critical Rate of Rise of On-state Current Thermal Resistance, Junction to Lead Package Critical Rate of Rise of Coupled Input/Output Voltage Common Mode Coupling Capacitor Package Capacitance dv(IO)/dt CCM CIO 1000 0 0.01 0.8 V/s pF pF f=1 MHz, VIO=0 V IT=0 A, VRM=VDM=565 VAC di/dt/cr RTHJL 150 10000 5000 8 V/s V/s A/s C/W VDRM VD(RMS) ID(RMS)1 ID(RMS)2 VTM ITM ITSM IFT1 IFT2 1.7 800 565 10 100 200 3 300 3 2.0 6.0 7 7 -20 50 2.0 65 5 15 35 50 10000 5000 25 500 200 14 14 V V A A V mA A mA mA A/K A/K mV/K A pF A mA V s s V/s V/s VT=2.2 V IF=Rated IFT VRM=VDM=565 VAC PF=1.0, IT=300 mA VD=0.67 VDRM, Tj=25C Tj=80C VD=0.67 VDRM, di/dtcrq<15 A/ms Tj=25C Tj=80C IF=IFT1, VDRM VD=0, f=1 kHz IDRM=100 A ID(RMS)=70 A VD=800 V, TA100C, IF=0 mA VD=800 V, IF=Rated IFT IT=300 mA PF=1.0, VT(RMS)=1.7 V f=50 Hz VD=5 V Vop=220 V, f=50 Hz, Tj=100C, tpF>10 ms VF VBR IR C0 RTHJL 6 1.16 30 0.1 25 750 10 1.35 V V A pF C/W IF=10 mA IR=10 A VR=6 V VF=0 V, f=1 MHz Symbol Min. Typ. Max. Unit Condition
IFT1/Tj IFT2/Tj VDINH/ Tj
IDINH CIO IH IL VIH tON tOFF dv/dtcr dv/dtcr
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IL4108

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