IL4216 SIEMENS | Alldatasheet
Document overview
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Technical content
5–1
FEATURES
- High Input Sensitivity I FT =1.3 mA
- 600/700/800 V Blocklng Voltage
- 300 mA On-State Current
- High Static dv/dt 10,000 V/ m sec., typical
- Inverse Parallel SCRs Provide Commutating dv/dt >10 KV/ m sec
- Very Low Leakage <10 m A
- Isolation Test Voltage from Double Molded Package 5300 VAC RMS
- Package, 6-Pln DIP
- Underwriters Lab File #E52744
DESCRIPTION
The IL421x consists of an AlGaAs IRLED optically coupled to a pair of photosensitive non-zero crossing SCR chips and are connected inversely parallel to form a TRIAC. These three semiconductors are assembled in a six pin 0.3 inch dual in-line package, using high insulation double molded, over/under lead- frame construction. High input sensitivity is achieved by using an emitter follower phototransistor and a cascaded SCR pre- driver resulting in an LED trigger current of less than 1.3 mA (DC). The IL421x uses two discrete SCRs resulting in a commutating dv/dt of greater than 10KV/ m s. The use of a proprietary dv/dt clamp results in a static dv/dt of greater than 10KV/ m s. This clamp circuit has a MOS- FET that is enhanced when high dv/dt spikes occur between MT1 and MT2 of the TRIAC. The FET clamps the base of the phototransistor when conducting, dis- abling the internal 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 25 The IL421x isolates low-voltage logic from 120, 240, and 380 VAC lines to control resistive inductive, or capacitive loads including motors solenoids, high cur- rent thyristors or TRIAC and relays. Applications include solid-state relays, industrial con- trols, office equipment, and consumer appliances. Maximum Ratings Emitter Derate Linearly from 25 C C/W Detector Peak Off-State Voltage Derate Linearly from 25 C C/W Package RMS C to +150 C C to +100 C C/5 sec. Isolation Resistance V IO =500 V, T A =25 W V IO =500 V, T A =100 W Dimensions in inches (mm) .010 (.25) .014 (.35) .110 (2.79) .150 (3.81) .130 (3.30) .150 (3.81) .020 (.051) min. .300 (7.62) typ. .031 (0.80) .035 (0.90) .100 (2.54) typ. .039 (1.00) min. .018 (0.45) .022 (0.55) .248 (6.30) .256 (6.50) .335 (8.50) .343 (8.70) Pin One ID. 654 123 18° typ. .300 (7.62) .347 (8.82) typ. Triac Anode 1 Triac Anode 2 Substrate do not connect LED Anode LED Cathode NC 600 V IL4216 700 V IL4217 800 V IL4218 TRIAC DRIVER OPTOCOUPLER
Figure 1. LED forward current vs. forward voltage Figure 2. Forward voltage versus forward current