Teccor, Brand thyristors, Figure 1: definition of quadrants – Littelfuse Q6008LH1LED Series User Manual
Page 3
3
Revised: January 25, 2013 08:34 AM
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
Teccor
®
brand Thyristors
8 Amp Alternistor (High Commutation) Triac for LED dimmer application
Q6008LH1LED Series
Figure 2: Normalized DC Gate Trigger Current for
All Quadrants vs. Junction Temperature
Junction Temperature (T
J
)- ºC
-65
-40
-15
10
35
60
85
110
0.0
Ratio of
I
GT
I
GT
(T
J
= 25°C)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Figure 1: Definition of Quadrants
Note: Alternistors will not operate in QIV
MT2 POSITIVE
(Positive Half Cycle)
MT2 NEGATIVE
(Negative Half Cycle)
NOTE: Alternistors will not operate in QIV
MT1
MT2
+
I
GT
REF
QII
MT1
I
GT
GATE
MT2
REF
MT1
MT2
REF
MT1
MT2
REF
QI
QIV
QIII
ALL POLARITIES ARE REFERENCED TO MT1
(
-
)
I
GT
GATE
(+)
I
GT
-
I
GT
GATE
(
-
)
I
GT
GATE
(+)
+
-
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
Figure 4: Normalized DC Gate Trigger Voltage for
All Quadrants vs. Junction Temperature
Junction Temperature (T
J
)- ºC
-65
-40
-15
10
35
60
85
110
0.0
Ratio of
I
H
I
H
(T
J
= 25°C)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Junction Temperature (T
J
)- ºC
Ratio of
V
GT
V
GT
(T
J
= 25°C)
-65
-40
-15
10
35
60
85
110
0.0
0.5
1.0
1.5
2.0
Figure 6: Maximum Allowable Case Temperature
vs. On-State Current (Standard / Alternistor Triac)
RMS On-State Current (I
T(RMS)
) - Amps
0
2
4
6
8
10
0
2
4
6
8
10
12
14
16
18
Average On-State
Power Dissipation (P
D(AV)
) - Watts
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
RMS On-State Current (I
T(RMS)
) - Amps
60
70
80
90
100
110
120
130
Maximum
All
ow
able
Case
Temper
at
ur
e (T
C
) - °C
0
1
2
3
4
5
6
7
8