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, PF≤1.0 • High Static dv/dt 10,000 V/µ s • Inverse Parallel SCRs Provide Commutating dv/dt >10K V/µ s • Very Low Leakage <10 µ 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 25°C ...................................... 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 25°C ........................................ 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=25°C .................................... ≥1012 Ω VIO=500 V, TA=100°C .................................. ≥1011 Ω Storage Temperature Range ............. –55°C to +125°C Ambient Temperature Range ............ –55°C to +100°C Soldering Temperature (max. ≤10 sec. dip soldering ≥0.5 mm from case bottom)................................................... 260°C Package Dimensions in inches (mm) Pin One ID. 3 2 1 4 5 6 .248 (6.30) .256 (6.50) .335 (8.50) .343 (8.70) .039 (1.00) min. 4° typ. .018 (0.45) .022 (0.55) LED Anode 1 Triac MT2 Substrate LED 5 do not 2 Cathode connect Triac 4 NC 3 ZCC* MT1 *Zero Crossing Circuit 6 .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) .110 (2.79) .150 (3.81) .300 (7.62) .347 (8.82) 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/µs. The use of a proprietary dv/dt clamp results in a static dV/dt of greater than 10KV/µs. 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. 5–141 Electrical Characteristics Parameter Symbol Min. Typ. Max. Unit Condition 1.16 1.35 V IF=10 mA V IR=10 µA µA VR=6 V VF=0 V, f=1 MHz Emitter Forward Voltage VF Breakdown Voltage VBR Reverse Current IR 0.1 Capacitance C0 25 pF Thermal Resistance, Junction to Lead RTHJL 750 °C/W 6 30 10 Output Detector Repetitive Peak Off-state Voltage VDRM 800 V IDRM=100 µA Off-state Voltage VD(RMS) 565 V ID(RMS)=70 µA Off-state Current ID(RMS)1 100 µA VD=800 V, TA100°C, IF=0 mA Off-state Current ID(RMS)2 200 µA VD=800 V, IF=Rated IFT On-state Voltage VTM 3 V IT=300 mA On-state Current ITM 300 mA PF=1.0, VT(RMS)=1.7 V Surge (Non-repetitive On-state Current) ITSM 3 A f=50 Hz Trigger Current 1 IFT1 2.0 mA VD=5 V Trigger Current 2 IFT2 6.0 mA Vop=220 V, f=50 Hz, Tj=100°C, tpF>10 ms Trigger Current Termperature Gradient ∆IFT1/∆Tj ∆IFT2/∆Tj 7 7 14 14 µA/K µA/K Inhibit Voltage Temperature Gradient ∆VDINH/ ∆Tj –20 Off-state Current in Inhibit State IDINH 50 Capacitance between Input and Output Circuit CIO 2.0 Holding Current IH 65 Latching Current IL 5 Zero Cross Inhibit Voltage VIH 15 Turn-on Time tON Turn-off Time tOFF Critical Rate of Rise of Off-State Voltage dv/dtcr dv/dtcr 10 1.7 mV/K 200 500 µA IF=IFT1, VDRM pF VD=0, f=1 kHz µA mA VT=2.2 V V IF=Rated IFT 35 µs VRM=VDM=565 VAC 50 µs PF=1.0, IT=300 mA V/µs V/µs VD=0.67 VDRM, Tj=25°C Tj=80°C V/µs V/µs VD=0.67 VDRM, di/dtcrq<15 A/ms Tj=25°C Tj=80°C 25 10000 5000 Critical Rate of Rise of Voltage at Current Commutation dv/dtcrq dv/dtcrq 10000 5000 Critical Rate of Rise of On-state Current di/dt/cr Thermal Resistance, Junction to Lead RTHJL 150 °C/W Critical Rate of Rise of Coupled Input/Output Voltage dv(IO)/dt 1000 0 V/µs Common Mode Coupling Capacitor CCM 0.01 pF Package Capacitance CIO 0.8 pF 8 A/µs Package 5–142 IT=0 A, VRM=VDM=565 VAC f=1 MHz, VIO=0 V IL4108