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參數(shù)資料
| 型號： | MOC3081SV-M |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電耦合器 |
| 英文描述： | 1 CHANNEL TRIAC OUTPUT WITH ZERO CRSVR OPTOCOUPLER |
| 封裝： | SURFACE MOUNT PACKAGE-6 |
| 文件頁數(shù)： | 9/11頁 |
| 文件大小： | 287K |
| 代理商： | MOC3081SV-M |
2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
MOC3081M, MOC3082M, MOC3083M Rev. 1.0.3
7
MOC3081M,
MOC3082M,
MOC3083M
—
6-Pin
Zer
o-Cr
oss
Optoisolator
s
T
riac
Driver
Output
(800
V
olt
P
eak)
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.
τ
RC is
measured at this point and recorded.
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.
Rin is calculated so that IF is equal to the rated IFT of the part, 15mA for the MOC3081M, 10mA for the MOC3082M,
and 5mA for the MOC3083M. The 39
resistor and 0.01F capacitor are for snubbing of the triac and may or may not
be necessary depending upon the particular triac and load use.
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 330
.
Note: This optoisolator should not be used to drive a load directly. It is intended to be a trigger device only.
Figure 11. Hot-Line Switching Application Circuit
0.01
VCC
Rin
1
2
3
6
5
4
240 VAC
HOT
FKPF12N80
NEUTRAL
360
* For highly inductive loads (power factor < 0.5), change this value to 360
.
330
MOC3081M
MOC3082M
MOC3083M
39*
LOAD
Figure 12. Inverse-Parallel SCR Driver Circuit
VCC
Rin
1
2
3
6
5
4
240 VAC
SCR
360
R1
D1
SCR
MOC3081M
MOC3082M
MOC3083M
R2
D2
LOAD
Figure 9. Static dv/dt Test Circuit
Vdc
800V
10 k
CTEST
X100
SCOPE
PROBE
PULSE
INPUT
MERCURY
WETTED
RELAY
RTEST
D.U.T.
Figure 10. Static dv/dt Test Waveform
504 V
0 VOLTS
APPLIED VOLTAGE
WAVEFORM
Vmax = 800 V
dv/dt =
0.63 Vmax
=
504
tRC
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