INFINEON IL4108

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