4 PIN DIP RANDOM-PHASE TRIAC DRIVER
PHOTOCOUPLER
Features:
•
Peak breakdown voltage
- 400V: ELT302X
- 600V: ELT305X
•
High isolation voltage between input
and output (Viso=5000 V rms )
•
Compact dual-in-line package
•
Pb free and RoHS compliant.
•
UL approved (No. E214129)
•
VDE approved (No.132249)
•
SEMKO approved
•
NEMKO approved
•
DEMKO approved
•
FIMKO approved
ELT302X Series
ELT305X Series
Description
The ELT302X and ELT305X series of devices each consist of a
GaAs infrared emitting diode optically coupled to a monolithic silicon
random phase photo Triac.
They are designed for interfacing between electronic controls and
power triacs to control resistive and inductive loads for 115 to 240 VAC
operations.
.
Schematic
Applications
Solenoid/valve controls
Lamp ballasts
Static AC power switch
Interfacing microprocessors to 115 to 240Vac peripherals
Incandescent lamp dimmers
Temperature controls
Motor controls
Pin Configuration
1. Anode
2. Cathode
3. Terminal
4. Terminal
Everlight Electronics Co., Ltd.
Document No DPC-0000135
1
Rev. 1
http://www.everlight.com
March 2, 2012
：
4 PIN DIP RANDOM-PHASE TRIAC DRIVER
PHOTOCOUPLER
Absolute Maximum Ratings (T
a
=25°
C)
Parameter
Forward current
Reverse voltage
Input
Power dissipation
Derating factor (above 85°C)
Off-state Output Terminal ELT302X
Voltage
Output
ELT305X
I
TSM
P
D
Symbol
I
F
V
R
P
D
ELT302X Series
ELT305X Series
Rating
60
6
100
3.8
400
Unit
mA
V
mW
mW /°
C
V
DRM
600
1
300
7.4
V
iso
P
D
T
opr
T
stg
5000
330
-55~+100
-55~+125
260
V
A
mW
mW /°
C
V rms
mW
°
C
°
C
°
C
Peak Repetitive Surge Current
Power dissipation
Derating factor (above 85°C)
Isolation voltage
*1
Total power dissipation
Operating temperature
Storage temperature
Soldering temperature
*2
T
sol
Notes
*1 AC for 1 minute, R.H.= 40 ~ 60% R.H. In this test, pins 1 & 2 are shorted together, and pins 3 & 4
are shorted together.
*2 For 10 seconds.
Everlight Electronics Co., Ltd.
Document No DPC-0000135
2
Rev. 1
http://www.everlight.com
March 2, 2012
：
4 PIN DIP RANDOM-PHASE TRIAC DRIVER
PHOTOCOUPLER
Electrical Characteristics (T
a
=25° unless specified otherwise)
C
Input
Parameter
Forward voltage
Reverse Leakage current
Symbol
V
F
I
R
Min.
-
-
Typ.*
1.18
-
Max.
1.5
10
Unit
V
µA
ELT302X Series
ELT305X Series
Condition
I
F
= 10mA
V
R
= 6V
Output
Parameter
Peak Blocking Current
Peak On-state Voltage
Critical Rate of
Rise off-state
Voltage
ELT305X
Symbol
I
DRM
V
TM
Min.
-
-
-
dv/dt
1000
-
-
Typ.*
-
-
100
Max.
100
2.5
-
V/µs
Unit
nA
V
Condition
V
DRM
= Rated V
DRM
I
F
= 0mA
I
TM
=100mA peak,
I
F
=Rated I
FT
V
PEAK
=Rated V
DRM
, I
F
=0
(Fig. 8)
V
PEAK
=400V, I
F
=0 (Fig. 8)
ELT302X
Transfer Characteristics
Parameter
ELT3021
ELT3051
LED Trigger
Current
ELT3022
ELT3052
ELT3023
ELT3053
Holding Current
* Typical values at T
a
= 25°C
I
H
I
FT
Symbol
Min.
-
-
-
-
Typ.*
-
-
-
250
Max.
15
10
5
-
µA
mA
Main terminal Voltage=3V
Unit
Condition
Everlight Electronics Co., Ltd.
Document No DPC-0000135
3
Rev. 1
http://www.everlight.com
March 2, 2012
：
4 PIN DIP RANDOM-PHASE TRIAC DRIVER
PHOTOCOUPLER
Typical Performance Curves
ELT302X Series
ELT305X Series
Everlight Electronics Co., Ltd.
Document No DPC-0000135
4
Rev. 1
http://www.everlight.com
March 2, 2012
：
4 PIN DIP RANDOM-PHASE TRIAC DRIVER
PHOTOCOUPLER
ELT302X Series
ELT305X Series
Figure 8. Static dv/dt Test Circuit & Waveform
D.U.T.
A
K
T1
10
k
R
TEST
V
T
C
TEST
50
High Voltage
Pulse Source
T2
Applied V
T
Waveform
V
PEAK
0.632 x V
PEAK
0
τ
RC
Measurement Method
The high voltage pulse is set to the required V
PEAK
value and applied to the D.U.T. output side through the RC
circuit above. LED current is not applied. The waveform V
T
is monitored using a x100 scope probe. By varying
R
TEST
, the dv/dt (slope) is increased, until the D.U.T. is observed to trigger (waveform collapses). The dv/dt is
then decreased until the D.U.T. stops triggering. At this point,
τ
RC
is recorded and the dv/dt calculated.
dv/dt =
0.632 x V
PEAK
τ
RC
Everlight Electronics Co., Ltd.
Document No DPC-0000135
5
Rev. 1
http://www.everlight.com
March 2, 2012
：
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