MOC-3021 Motorola, MOC-3021 Datasheet - Page 3

• Manufacturer Part Number: MOC-3021
• Description: 6-Pin DIP Random-Phase Optoisolators Triac Driver Output
• Manufacturer: Motorola

+400
Vdc
PULSE
INPUT
APPLIED VOLTAGE
0 VOLTS
Motorola Optoelectronics Device Data
1.4
1.3
1.2
1.1
0.9
0.8
0.7
0.6
12
10
1
–40
WAVEFORM
8
6
4
2
0
25 30
Figure 3. Trigger Current versus Temperature
–20
Figure 5. dv/dt versus Temperature
40
MERCURY
WETTED
T A , AMBIENT TEMPERATURE ( C)
T A , AMBIENT TEMPERATURE ( C)
RELAY
0
t
RC
50
252 V
R TEST
20
60
40
70
CIRCUIT IN FIGURE 7
C TEST
60
80
D.U.T.
STATIC dv/dt
Figure 7. Static dv/dt Test Circuit
80
90
R = 10 k
SCOPE
PROBE
X100
100
100
V max = 400 V
dv dt
1. The mercury wetted relay provides a high speed repeated
2. 100x scope probes are used, to allow high speeds and
3. The worst–case condition for static dv/dt is established by
+
100
10
25
20
15
10
1
– 40
5
0
pulse to the D.U.T.
voltages.
triggering the D.U.T. with a normal LED input current, then
removing the current. The variable R TEST 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.
recorded.
0.63 V max
1
t
– 30 – 20 –10
RC
Figure 4. LED Current Required to Trigger
MOC3021 MOC3022 MOC3023
2
Figure 6. Leakage Current, I DRM
+
t
252
RC
T A , AMBIENT TEMPERATURE ( C)
versus LED Pulse Width
PW in , LED TRIGGER WIDTH ( s)
versus Temperature
0
5
10
t
RC is measured at this point and
20
10
30
NORMALIZED TO:
40
20
PW in
50
q
100 s
60
50
70 80
100
3