MOC3081 Datasheet, PDF (3/6 Pages) Motorola, Inc – 6-Pin DIP Zero-Cross Optoisolators Triac Driver Output

500
200
100
50
20
VDRM = 800 V
10
5
–40 –20 0 20 40 60 80 100
TA, AMBIENT TEMPERATURE (°C)
Figure 3. Leakage with LED Off
versus Temperature
1.5
NORMALIZED TO
1.4
TA = 25°C
1.3
1.2
1.1
1
0.9
0.8
0.7
–40 –20
0
20
40
60
80 100
TA, AMBIENT TEMPERATURE (°C)
Figure 5. Trigger Current versus Temperature
MOC3081 MOC3082 MOC3083
1.5
1.4
1.3
IF = RATED IFT
1.2
1.1
1
0.9
0.8
0.7
0.6
–40 –20
0 20 40 60 80 100
TA, AMBIENT TEMPERATURE (°C)
Figure 4. IDRM2, Leakage in Inhibit State
versus Temperature
25
20
q ^{NORMALIZED TO:}
PWin 100 µs
15
10
5
0
1
2
5
10
20
50
100
PWin, LED TRIGGER PULSE WIDTH (µs)
Figure 6. LED Current Required to Trigger
versus LED Pulse Width
+400
Vdc
PULSE
INPUT
RTEST
MERCURY
WETTED
RELAY
APPLIED VOLTAGE
WAVEFORM
252 V
0 VOLTS
t_RC
10 kΩ
CTEST
D.U.T.
X100
SCOPE
PROBE
1. The mercury wetted relay provides a high speed repeated pulse
to the D.U.T.
2. 100x scope probes are used, to allow high speeds and voltages.
3. The worst–case condition for static dv/dt is established by
triggering the D.U.T. with a normal LED input current, then
removing the current. The variable RTEST allows the dv/dt to be
gradually increased until the D.U.T. continues to trigger in
response to the applied voltage pulse, even after the LED
current has been removed. The dv/dt is then decreased until the
D.U.T. stops triggering. t_RC is measured at this point and
recorded.
Vmax = 400 V
ń + + dv dt
0.63 Vmax
t_RC
504
t_RC
Figure 7. Static dv/dt Test Circuit
Motorola Optoelectronics Device Data
3