MOC2R6010 Datasheet, PDF (5/8 Pages) Motorola, Inc – OPTOISOLATOR 2 AMPS RANDOM-PHASE TRIAC OUTPUT 600 VOLTS

100
10
t(d)
1
t(f)
0.1
10
20
30
40
50
60
IFT, LED TRIGGER CURRENT (mA)
Figure 13. Delay Time, t(d), and Fall Time, t(f),
versus LED Trigger Current
MOC2R60-10 MOC2R60-15
t(delay), t(f) versus IFT
The POWER OPTO Isolators turn on switching speed con-
sists of a turn on delay time t(d) and a fall time t(f). Figure 13
shows that the delay time depends on the LED trigger cur-
rent, while the actual trigger transition time t(f) stays constant
with about one micro second.
The delay time is important in very short pulsed operation
because it demands a higher trigger current at very short trig-
ger pulses. This dependency is shown in the graph IFT ver-
sus LED PW.
The turn on transition time t(f) combined with the power
triacs turn on time is important to the power dissipation of this
device.
ISOL. TRANSF.
A
C
SCOPE
IFT
VTM
t(d)
t(f)
10 kΩ
VTM
DU
T
ZERO CROSS
DETECTOR
115
VAC
EXT. SYNC
FUNCTION
GENERATOR
Vout
PHASE CTRL.
PW CTRL.
PERIOD CTRL.
Vo AMPL. CTRL.
IFT
100 Ω
Figure 14. Switching Time Test Circuit
MOC2R60
VCC
R1
R2
MOV
C1
Load
Figure 15. Typical Application Circuit
Select the value of R1 according to the following formulas:
(1) R1 = (VCC – VF) / Max. IFT (on) per spec.
(2) R1 = (VCC – VF) / 0.050
Typical values for C1 and R2 are 0.01 µF and 39 Ω,
respectively. You may adjust these values for specific
applications. The maximum recommended value of C1 is
0.022 µF. See application note AN1048 for additional
information on component values.
The MOV may or may not be needed depending upon the
characteristics of the applied AC line voltage. For
applications where line spikes may exceed the 600 volts
rating of the MOC2R60, an MOV is required.
Motorola Optoelectronics Device Data
5