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IL420
600 V TRIAC DRIVER OPTOCOUPLER
FEATURES * High Input Sensitivity IFT=2 mA * Blocking Voltage, 600 V * 300 mA On-State Current * High Static dv/dt 10,000 V/s * Inverse Parallel SCRs Provide Commutating dv/dt >2K V/s * Very Low Leakage <10 A * Isolation Test Voltage from Double Molded Package 5300 VACRMS * Small 6-Pin DIP Package * Underwriters Lab File #E52744 * VDE 0884 Available with Option 1 Maximum Ratings Emitter Reverse Voltage ................................................ 6 V Forward Current ........................................... 60 mA Surge Current ..................................................2.5 A Power Dissipation.......................................100 mW Derate from 25C ................................1.33 mW/C Thermal Resistance..................................750 C/W Detector Peak Off-State Voltage ...................................600 V Peak Reverse Voltage ....................................600 V RMS On-State Current.................................300 mA Single Cycle Surge............................................ 3 A Total Power Dissipation ..............................500 mW Derate 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
Dimensions in inches (mm)
Pin One ID 3 .248 (6.30) .256 (6.50) 4 5 6 2 1
LED 1 Anode LED Cathode 2
.335 (8.50) .343 (8.70) .039 (1.00) Min. 4 typ. .018 (0.45) .022 (0.55)
6 Triac MT2 Substrate 5 do not connect NC 3 4 Triac MT1 *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)
DESCRIPTION The IL420 consists of a GaAs IRLED optically coupled to a photosensitive non-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 IL420 uses two discrete SCRs resulting in a commutating dV/dt of greater than 10KV/ms. The use of a proprietary dv/dt clamp results in a static dV/dt of greater than 10KV/ms. 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 600 V blocking voltage 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. The IL420 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.
5-1
Characteristics
Symbol Emitter Forward Voltage Reverse Current Capacitance Thermal Resistance, Junction to Lead Output Detector Off-State Voltage Reverse Voltage Off-State Current Reverse Current On-State Voltage On-State Current Surge (Non-Repititive) On-State Current Holding Current Latching Current LED Trigger Current Turn-On Time Turn-Off Time Critical State of Rise of Off-State Voltage dv/dtcr dv/dtcr Critical Rate of Rise of Voltage at Current Commutation Critical State of Rise of On-State Current Thermal Resistance, Junction to Lead Insulation and Isolation Critical Rate of Rise of Coupled Input/Output Voltage Common Mode Coupling Capacitor Package Capacitance Isolation Test Voltage, Input-Output Creepage Clearance Creepage Tracking Resistance per DIN IEC 112/VDE 0303, Part 1 group IIIa per DIN VDE 0110 Isolation Resistance Trigger Current Temperature Gradient Capacitance Between Input and Output Circuit Ris Ris IFT/Tj CIO dv(IO)/dt CCM CIO VISO 5300 7 7 CTI 175 5000 0.01 0.8 V/s pF pF VACRMS mm mm f=1 MHz, VIO=0 V Relative Humidity 50% IT=0 A, VRM=VDM=424 VAC dv/dtcrq dv/dtcrq di/dtcr RTHJL 150 10000 5000 10000 5000 8 VD (RMS) VR ID (RMS) IR (RMS) VTM ITM ITSM IH IL IFT tON tOFF 65 5 1 35 50 2 424 424 460 460 10 10 1.7 100 100 3 300 3 500 V V A A V mA A A mA mA s s V/s V/s V/s V/s A/s VT=2.2 V VAK=5 V VRM=VDM=424 VAC PF=1.0, IT=300 mA VD=0.67 VDRM Tj=25C Tj=80C VD=0.67 VDRM, di/dtcrq15 A/ms Tj=25C Tj=80C ID(RMS)=70 A IR(RMS)=70 A VD=600 V, TA=100C VR=600 V, TA=100C IT=300 mA PF=1.0, VT(RMS)=1.7 V f=50 Hz VF IR CO RTHJL 1.16 0.1 40 750 1.35 10 V A pF IF=10 mA VR=6 V VF=0 V, f=1 MHz Min Typ Max Unit Condition
C/W
C/W
1012 1011 7 14 2
A/K pF
VIO=500, TA=25C VIO=500, TA=100C
VR=0, f=1 kHz
IL420
5-2
Figure 1. Forward voltage versus forward current 1.4 VF - Forward Voltage - V 1.3 1.2 1.1 1.0 0.9 0.8 0.7 .1 1 10 IF - Forward Current - mA 100 Ta = 85C Ta = 25C Ta = -55C
Figure 4. Typical output characteristics IT=f(Vt), parameter: Tj
Figure 2. Peak LED current versus duty factor, Tau
10000
If(pk) - Peak LED Current - mA
Duty Factor .005 .01 .02 .05 .1 .2 100 .5
1000
t DF = /t
Figure 5. Current reduction ITRMS=f(TA) RthJA=125 K/W Device switch is soldered in PCB or base plate
10 10-6
10-5
10-4
10-3
10-2
10-1
10 0
10 1
t - LED Pulse Duration - s
Figure 3. Maximum LED power dissipation
150 LED - LED Power - mW P
100
50
Figure 6. Current reduction ITRMS=f(TPIN5), RthJ=16.5 K/W Thermocouple measurement must be performed potentially separated to A1 and A2. Measuring junction to be as near as possible at case.
-40 -20 0 20 40 60 80 Ta - Ambient Temperature - C 100
0 -60
IL420
5-3
Figure 7. Typical trigger delay time tgd=f(IF/IFT25C), VD=200 V, parameter: Tj
Figure 9. Power dissipation for 40 to 60 Hz line operation, PTOT=f(ITRMS)
Figure 8. Typical off-state current ID=f(Tj), VD=800 V, parameter: Tj
Figure 10. Pulse trigger current IFTN=f(tpIF)IFTN normalized to IFT, referring to tpIF1ms, VOP=200 V, f=40 to 60 Hz typ.
IL420
5-4

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