IL4216
700 V
IL4217
800 V
IL4218
600 V
TRIAC DRIVER OPTOCOUPLER
FEATURES
鈥?High Input Sensitivity I
FT
=1.3 mA
鈥?600/700/800 V Blocklng Voltage
鈥?300 mA On-State Current
鈥?High Static dv/dt 10,000 V/
碌
sec., typical
鈥?Inverse Parallel SCRs Provide Commutating
dv/dt >10 KV/
碌
sec
鈥?Very Low Leakage <10
碌
A
鈥?Isolation Test Voltage from Double Molded
Package 5300 VAC
RMS
鈥?Package, 6-Pln DIP
鈥?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/
碌
s. The use
of a proprietary
dv/dt clamp
results in a static dv/dt of
greater than 10KV/
碌
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 suf鏗乧ient for as much as 380
VAC. Current handling capability is up to 300 mA
RMS, continuous at 25
擄
C.
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, of鏗乧e equipment, and consumer appliances.
4擄
typ.
.018 (0.45)
.022 (0.55)
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
6 Triac 2
Anode
Substrate
5 do not
connect
Triac
4 Anode 1
.335 (8.50)
.343 (8.70)
.039
(1.00)
min.
.300 (7.62)
typ.
.130 (3.30)
.150 (3.81)
18擄 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 25
擄
C ......................................................1.33 mW/
擄
C
Thermal Resistance....................................................................750
擄
C/W
Detector
Peak Off-State Voltage
IL4216...........................................................................................600 V
IL4217...........................................................................................700 V
IL4218...........................................................................................800 V
RMS On-State Current...................................................................300 mA
Single Cycle Surge...............................................................................3 A
Total Power Dissipation ................................................................500 mW
Derate Linearly from 25
擄
C ........................................................6.6 mW/
擄
C
Thermal Resistance.....................................................................150
擄
C/W
Package
Isolation Test Voltage........................................................... 5300 VAC
RMS
Storage Temperature......................................................鈥?5
擄
C to +150
擄
C
Operating Temperature ..................................................鈥?5
擄
C to +100
擄
C
Lead Soldering Temperature................................................ 260
擄
C/5 sec.
Isolation Resistance
V
IO
=500 V, T
A
=25
擄
C .................................................................
鈮?/div>
10
12
鈩?/div>
V
IO
=500 V, T
A
=100
擄
C ...............................................................
1
2
3
