Littelfuse LX8 User Manual
LX8 Series
Teccor® brand Thyristors
EV Series 0.8 Amp Sensitive Triacs
Description
New 0.8 Amp bi-directional solid state switch series
offering direct interface to microprocessor drivers in
economical TO-92 and surface mount packages. The die
voltage blocking junctions are glass-passivated to ensure
long term reliability and parametric stability.
Features & Benefits
Main Features
t3P)4DPNQMJBOUBOE
Halogen-Free
t#MPDLJOHWPMUBHF
(V
) capability
DRM
— up to 600V
t4UBUJDEWEU7PMUT
μsec
t5ISVIPMFBOETVSGBDF
mount packages
t4VSHF
Symbol Value Unit
I
T(RMS)
V
DRM/VRRM
I
GT
0.8 A
400 to 600 V
3 to 5 mA
capability > 9.5Amps
Applications
The LX8 EV Series is especially designed for low current
applications such as heating controls in hair care products,
as well as replacement of mechanical switch contacts
Schematic Symbol
MT2
G
MT1
where long life is required.
Absolute Maximum Ratings
Symbol Parameter Value Unit
I
T(RMS)
I
TSM
I2tI
di/dt Critical rate of rise of on-state current I
I
GTM
P
G(AV)
T
stg
T
J
RMS on-state current (full sine wave)
Non repetitive surge peak on-state current
(Single cycle, TJ initial = 25°C)
2
t Value for fusing
= 2 x IGT
G
Peak gate current tp = 10 μs
Average gate power dissipation
Storage junction temperature range -40 to 150 °C
Operating junction temperature range -40 to 110 °C
TO-92 T
SOT-223 T
TO-92 F = 50 Hz 8.0
SOT-223 F = 60 Hz 9.5
= 10 ms F = 50 Hz 0.32
t
p
t
= 8.3 ms F = 60 Hz 0.37
p
TO-92
SOT-223
= 50°C
C
= 90°C
L
= 110°C
T
J
T
= 110°C
J
T
= 110°C
J
0.8A A
20 A/μs
1A
0.1 W
A
2
A
s
LX8 Series
27
Specifications are subject to change without notice.
©2013 Littelfuse, Inc
Revised: 09/23/13
Teccor® brand Thyristors
EV Series 0.8 Amp Sensitive Triacs
Electrical Characteristics (T
Symbol Description
I
GT
V
GT
I
H
dv/dt
DC Gate Trigger Current
DC Gate Trigger Voltage ALL MAX. 1.3 1.3 V
Holding Current Gate Open MAX. 5 5 mA
Critical Rate-of-Rise of
Off-State Voltage
= 25°C, unless otherwise specified)
J
Test
Conditions
= 12V
V
D
RL = 60
= 110°C
T
J
VD = V
Exponential Waveform
DRM
Quadrant Limit
*o**o***
IV
MAX.
MIN. 10 10 V/μs
Value
LX803xy LX807xy
3
5
5
7
Gate Open
(dv/dt)c
Critical
Rate-of-Rise of
Commutating Voltage
(di/dt)c = 0.43A/ms
T
= 110°C
J
MIN. 1.5 1.5 V/μs
IG = 25mA
t
gt
NOTE: x = voltage, y = package
Turn-On Time
Static Characteristics (T
= 25°C, unless otherwise specified)
J
PW = 15μs
IT = 1.2A (pk)
MAX. 2.0 2.0 μs
Symbol Description Test Conditions Limit Value Unit
V
I
TM
DRM
Peak On-State Voltage ITM = 1.13A (pk) MAX 1.60 V
Off-State Current, Peak Repetitive
= V
V
D
= V
V
D
= 25°C
DRM TJ
= 110°C 100 μA
DRM TJ
MAX
5μA
Unit
mA
Thermal Resistances
Symbol Description Test Conditions Value Unit
R
th(j-c)
R
th(j-a)
1
60Hz AC resistive load condition, 100% conduction.
Junction to case (AC) IT = 0.8A
Junction to ambient IT = 0.8A
(RMS)
(RMS)
1
1
TO-92 60
SOT-223 25
TO-92 150
SOT-223 60
°C/W
°C/W
LX8 Series
28
Specifications are subject to change without notice.
©2013 Littelfuse, Inc
Revised: 09/23/13
Teccor® brand Thyristors
T
EV Series 0.8 Amp Sensitive Triacs
Figure 1: Definition of Quadrants
ALL POLARITIES ARE REFERENCED TO MT1
MT2 POSITIVE
(Positive Half Cycle)
MT2
(-)
I
GT
GATE
MT1
I
GT
GATE
REF
MT2
MT1
REF
I
-
GT
(-)
+
(+)
QII
QI
QIV
QIII
(+)
-
MT2 NEGATIVE
(Negative Half Cycle)
I
GT
GATE
I
GT
GATE
MT2
REF
MT2
REF
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
3.0
2.5
2.0
H
I
= 25ºC)
J
1.5
(T
H
I
1.0
Ratio of
0.5
0.0
-55 -40 -15 +5 +25 +45 +65 +85 +110
INITIAL ON-STATE CURRENT = 100mA (DC)
Junction Temperature (TJ) °C
MT1
MT1
+ I
Figure 2: Normalized DC Gate Trigger Current for
All Quadrants vs. Junction Temperature
GT
I
= 25ºC)
J
(T
GT
I
G
Ratio of
Junction Temperature (TJ) °C
Figure 4: Normalized DC Gate Trigger Voltage for
All Quadrants vs. Junction Temperature
2.00
1.7 5
1.50
1.2 5
= 25ºC)
GT
J
V
1.0 0
(T
GT
V
0.75
0.50
Ratio of
0.25
+125
0.0
-55 -40 -15 +5 +25 +45 +65 +85
Junction Temperature (TJ) °C
+110
+125
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
Average On-state Power Dissipation
LX8 Series
2.00
1.7 5
1.50
1.2 5
1.0 0
] - Watts
D(AV)
0.75
[P
0.50
0.25
0.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360˚
RMS On-state Current [I
T(RMS)
0.7 0.8 0.9 1. 0
] - Amps
Figure 6: Maximum Allowable Case Temperature
vs. On-State Current
130
120
110
100
90
) - ˚C
C
(T
80
70
60
Maximum Allowable Case Temperature
50
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
SOT-223
TO-92
RMS On-state Current [ I
29
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360
CASE TEMPERATURE: Measured as
shown on dimensional drawings
] - Amps
T(RMS)
Specifications are subject to change without notice.
o
1.00.9
©2013 Littelfuse, Inc
Revised: 09/23/13
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