MOC2R60-10 MOTOROLA [Motorola, Inc], MOC2R60-10 Datasheet - Page 4

• Manufacturer Part Number: MOC2R60-10
• Description: OPTOISOLATOR 2 AMPS RANDOM-PHASE TRIAC OUTPUT 600 VOLTS
• Manufacturer: MOTOROLA [Motorola, Inc]

MOC2R60-10 MOC2R60-15
4
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
– 40
25
20
15
10
5
0
1
Figure 12. Minimum Time for LED Turn-Off to
Figure 11. LED Current Required to Trigger
– 20
0
Figure 9. Holding Current versus
2
Zero Cross of AC Trailing Edge
PW in , LED TRIGGER PULSE WIDTH ( s)
T A , AMBIENT TEMPERATURE ( C)
Ambient Temperature
0
versus LED Pulse Width
5
+ 25
Normalized
180
LED PW
at 25 C
10
+ 40
LED TURN OFF MIN 200 s
NORMALIZED TO:
PW in 100 s
20
+ 60
AC SINE
LED CURRENT
+ 80
50
+ 100
100
Phase Control Considerations
LED Trigger Current versus PW (normalized)
to be phase controllable. They may be triggered at any phase
angle within the AC sine wave. Phase control may be accom-
plished by an AC line zero cross detector and a variable pulse
delay generator which is synchronized to the zero cross de-
tector. The same task can be accomplished by a microproces-
sor which is synchronized to the AC zero crossing. The phase
controlled trigger current may be a very short pulse which
saves energy delivered to the input LED. LED trigger pulse
currents shorter than 100 s must have an increased ampli-
tude as shown on Figure 11. This graph shows the dependen-
cy of the trigger current I FT versus the pulse width t (PW). The
reason for the I FT dependency on the pulse width can be seen
on the chart delay t(d) versus the LED trigger current.
the minimum specified I FT for static condition, which is speci-
fied in the device characteristic. The normalized I FT has to be
multiplied with the devices guaranteed static trigger current.
Example:
Guaranteed I FT = 10 mA, Trigger pulse width PW = 3 s
I FT (pulsed) = 10 mA x 5 = 50 mA
Minimum LED Off Time in Phase Control Applications
trol each AC sine half wave from 0 to 180 degrees. Turn on at
zero degrees means full power, and turn on at 180 degrees
means zero power. This is not quite possible in reality be-
cause triac driver and triac have a fixed turn on time when
activated at zero degrees. At a phase control angle close to
180 degrees the turn on pulse at the trailing edge of the AC
sine wave must be limited to end 200 s before AC zero
cross as shown in Figure 12. This assures that the device
has time to switch off. Shorter times may cause loss off con-
trol at the following half cycle.
The Random Phase POWER OPTO Isolators are designed
I FT in the graph I FT versus (PW) is normalized in respect to
In phase control applications one intends to be able to con-
1000
100
10
– 40
0
Figure 10. dv/dt versus Ambient Temperature
I T = 30 mA – 2A(RMS)
– 20
F = 60 Hz
0
T A , AMBIENT TEMPERATURE ( C)
Motorola Optoelectronics Device Data
20
40
60
Commutating
Static
80
100
120