IL410
ZERO VOLTAGE CROSSING
600 V TRIAC DRIVER OPTOCOUPLER
FEATURES
鈥?On-State Current, 300 mA
鈥?Zero Voltage Crossing
鈥?Blocking Voltage, 600 V
鈥?Isolation Test Voltage from Double Molded
Package, 5300 VAC
RMS
鈥?High Input Sensitivity
I
FT
=2 mA, PF=1.0
I
FT
=5 mA, PF鈮?.0
鈥?High Static dv/dt 10,000 V/碌s
鈥?Inverse Parallel SCRs Provide
Commutating dv/dt
>10K
V/碌s
鈥?Very Low Leakage
<10 碌A(chǔ)
鈥?Small 6-Pin DIP Package
鈥?Underwriters Lab File #E52744
鈥?VDE Approval #0884 (Optional with Option 1,
Add -X001 Suf鏗亁)
Maximum Ratings
Emitter
Reverse Voltage ................................................ 6 V
Forward Current............................................ 60 mA
Surge Current ................................................. 2.5 A
Thermal Resistance ................................. 750
擄C/W
Power Dissipation ...................................... 100 mW
Derate from 25擄C ................................ 1.33 mW/擄C
Detector
Peak Off-State Voltage................................... 600 V
Peak Reverse Voltage.................................... 600 V
RMS On-State Current ................................ 300 mA
Single Cycle Surge ............................................ 3 A
Thermal Resistance .................................. 125擄C/W
Total Power Dissipation.............................. 500 mW
Derate from 25擄C................................... 6.6 mW/擄C
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.
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擄
typ.
.018 (0.45)
.022 (0.55)
6 Triac
MT2
Substrate
5 do not
connect
ZCC*
NC 3
4 Triac
MT1
*Zero Crossing Circuit
.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)
DESCRIPTION
The IL410 consists of a GaAs IRLED optically coupled to a photosensi-
tive 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 insula-
tion double molded, over/under leadframe construction.
High input sensitivity is achieved by using an emitter follower pho-
totransistor and a cascaded SCR predriver resulting in an LED trigger
current of less than 2 mA (DC).
The IL410 uses two discrete SCRs resulting in a commutating dV/dt
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 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 pho-
totransistor, disabling the 鏗乺st stage SCR predriver.
The zero cross line voltage detection circuit consists of two enhance-
ment MOSFETS and a photodiode. The inhibit voltage of the network is
determined by the enhancement voltage of the N-channel FET. The P-
channel 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 phototrans-
istor, disabling the 鏗乺st stage SCR predriver.
The 600V blocking voltage permits control of off-line voltages up to
240VAC, with a safety factor of more than two, and is suf鏗乧ient for as
much as 380VAC.
The IL410 isolates low-voltage logic from 120, 240, and 380 VAC lines to
control resistive, inductive, or capacitive loads including motors, sole-
noids, high current thyristors or TRIAC and relays.
Applications include solid-state relays, industrial controls, of鏗乧e equip-
ment, and consumer appliances.
5鈥?
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