Data Sheet
©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC306XM, MOC316XM Rev. 1.5 7
MOC306XM, MOC316XM — 6-Pin DIP Zero-Cross Triac Driver Optocoupler (600 Volt Peak)
1. 100x scope probes are used, to allow high speeds and voltages.
2. 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 vernier resistor combined with various capacitor combinations 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.
27
2W
2W
100
2W
dV
dt
VERNIER
MOUNT DUT ON
TEMPERATURE CONTROLLED
Cμ PLATE
DIFFERENTIAL
PREAMP
f = 10 Hz
PW = 100 μs
50 Ω PULSE
GENERATOR
ALL COMPONENTS ARE NON-INDUCTIVE UNLESS SHOWN
82
2W
470pF
0.001
0.005
0.01
0.047
0.47
0.1
56
2W
1N914
20V
1000
1/4W
1N967A
18V
RFP4N100
DUT
20k
X100 PROBE
X100 PROBE
V
DRM
/V
RRM
SELECT
6
4
1
2
1000
10 WATT
WIREWOUND
0.33 1000V
POWER
1 M
2W EACH
1.2 M
2W
TEST
0-1000V
10mA
0.047
1000V
Figure 11. Circuit for Static
dV
Measurement of Power Thyristors
μ
F
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
μ
F
μ
F
μ
F
μ
F
μ
F
μ
F
μ
F
dV
dt
Basic Applications
Typical circuit for use when hot line switching is
required. In this circuit the “hot” side of the line is
switched and the load connected to the cold or
neutral side. The load may be connected to either
the neutral or hot line.
R
in
is calculated so that I
F
is equal to the rated I
FT
of the part, 15mA for the MOC3061M, 10mA for
the MOC3062M, or 5mA for the MOC3063M.
The 39Ω resistor and 0.01μF capacitor are for
snubbing of the triac and is often, but not always,
necessary depending upon the particular triac and
load used.
Suggested method of firing two, back-to-back
SCR’s with a Fairchild triac driver. Diodes
can be 1N4001; resistors, R1 and R2, are
optional 330Ω.
Note:
This optoisolator should not be used to drive
a load directly. It is intended to be a trigger
device only.
Figure 12. Hot-Line Switching Application Circuit
V
CC
R
in
1
2
3
6
5
4
240 VAC
HOT
NEUTRAL
360Ω
360Ω
MOC3061M
MOC3062M
MOC3063M
39Ω
0.01μF
FKPF12N60
LOAD
Figure 13. Inverse-Parallel SCR Driver Circuit
V
CC
R
in
1
2
3
6
5
4
115 VAC
SCR
360Ω
R1 D1
SCR
R2 D2
LOAD
MOC3061M
MOC3062M
MOC3063M