CT303X, CT304X, CT306X, CT308X
6Pin Zero Cross TRIAC Driver Coupler
CT Micro
Features
High isolation 5000 VRMS
Peak Breakdown Voltage
250V – CT303X
400V – CT304X
600V – CT306X
800V – CT308X
Description
The CT303X, CT304X, CT306X and CT308X series
consists of a Zero Cross Photo Triac optically
coupled to a gallium arsenide Infrared-emitting
diode in a 6-lead DIP package with bending options.
Temperature range - 55 °C to 100 °C
Applications
Motor Controls
Lamp ballasts
Static AC Power Switch
Solenoid/ Valve Control
Package Outline
Schematic
Note: Different bending options available. See package
dimension.
CT Micro
Proprietary & Confidential
Page 1
Rev 1
Aug, 2013
CT303X, CT304X, CT306X, CT308X
6Pin Zero Cross TRIAC Driver Coupler
CT Micro
Absolute Maximum Rating at 25
o
C
Symbol
V
ISO
T
OPR
T
STG
T
SOL
Isolation voltage
Operating temperature
Storage temperature
Soldering temperature
Parameters
Ratings
5000
-55 ~ +100
-55 ~ +125
260
Units
V
RMS
o
C
o
C
o
C
Notes
Emitter
I
F
I
F(TRANS)
V
R
P
D
Forward current
Peak transient current
Reverse voltage
Power dissipation
(≤1μs P.W,300pps)
60
1
6
100
mA
A
V
mW
Detector
P
D
Power dissipation
CT303X
CT304X
300
250
400
600
800
1
mW
V
V
V
V
A
V
DRM
Off-State Output Terminal Voltage
CT306X
CT308X
I
TSM
Peak Repetitive Surge Current
CT Micro
Proprietary & Confidential
Page 2
Rev 1
Aug, 2013
CT303X, CT304X, CT306X, CT308X
6Pin Zero Cross TRIAC Driver Coupler
CT Micro
Electrical Characteristics
T
Emitter Characteristics
Symbol
V
F
I
R
C
IN
Parameters
Forward voltage
Reverse Current
Input Capacitance
A
= 25°C (unless otherwise specified)
Test Conditions
I
F
=10mA
V
R
= 6V
f= 1MHz
Min
Typ
1.2
Max
1.4
5
-
Units
V
µA
pF
Notes
-
-
-
45
Detector Characteristics
Symbol
Parameters
CT303X,
-
Peak Blocking
CT304X
I
F
= 0mA, V
DRM
= Rated V
DRM
Current
CT306X,
-
CT308X
I
F
= Rated I
FT,
V
DRM
= Rated
-
500
nA
-
100
Test Conditions
Min
Typ
Max
Units
Notes
I
DRM1
I
DRM2
V
TM
Inhibit Leakage Current
V
DRM
Peak On-State Voltage
Critical Rate of Rise
off-State Voltage
CT303X,
CT304X,
CT306X
CT308X
V
PEAK
= 400V
600
-
V
PEAK
= Rated V
DRM
1000
-
I
F
= Rated I
FT
, I
TM
= 100mA
-
-
500
3
µA
V
-
V/µs
-
dv/dt
Transfer Characteristics
Symbol
Parameters
CT3031, CT3041,
-
Ct3061, CT3081
Input
CT3032, CT3042,
-
15
Test Conditions
Min
Typ
Max
Units
Notes
I
FT
Trigger
CT3062, CT3082
Current
CT3033, CT3043,
Terminal Voltage = 3V
-
-
10
V
-
CT3063, CT3083
-
270
5
-
µA
Ω
I
H
R
IO
C
IO
Holding Current
Isolation Resistance
Isolation Capacitance
V
IO
= 500V
DC
f= 1Mhz
-
1x10
11
0.25
pF
CT Micro
Proprietary & Confidential
Page 3
Rev 1
Aug, 2013
CT303X, CT304X, CT306X, CT308X
6Pin Zero Cross TRIAC Driver Coupler
CT Micro
Typical Characteristic Curves
CT Micro
Proprietary & Confidential
Page 4
Rev 1
Aug, 2013
CT303X, CT304X, CT306X, CT308X
6Pin Zero Cross TRIAC Driver Coupler
CT Micro
CT Micro
Proprietary & Confidential
Page 5
Rev 1
Aug, 2013
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