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PDF MOC3051-M Data sheet ( Hoja de datos )
| Número de pieza | MOC3051-M | |
| Descripción | (MOC3051-M / MOC3052-M) 6-PIN DIP RANDOM-PHASE OPTOISOLATORS TRIAC DRIVERS (600 VOLT PEAK) | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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PACKAGE
6-PIN DIP RANDOM-PHASE
OPTOISOLATORS TRIAC DRIVERS
(600 VOLT PEAK)
MOC3051-M MOC3052-M
SCHEMATIC
6
6
1
6
1
ANODE 1
CATHODE 2
N/C 3
6 MAIN TERM.
5 NC*
4 MAIN TERM.
*DO NOT CONNECT
(TRIAC SUBSTRATE)
1
DESCRIPTION
The MOC3051-M and MOC3052-M consist of a AlGaAs infrared emitting diode optically coupled to a non-zero-crossing silicon
bilateral AC switch (triac). These devices isolate low voltage logic from 115 and 240 Vac lines to provide random phase control of
high current triacs or thyristors. These devices feature greatly enhanced static dv/dt capability to ensure stable switching perfor-
mance of inductive loads.
FEATURES
• Excellent IFT stability—IR emitting diode has low degradation
• High isolation voltage—minimum 7500 peak VAC
• Underwriters Laboratory (UL) recognized—File #E90700
• 600V peak blocking voltage
• VDE recognized (File #94766)
- Ordering option V (e.g. MOC3023V-M)
APPLICATIONS
• Solenoid/valve controls
• Lamp ballasts
• Static AC power switch
• Interfacing microprocessors to 115 and 240 Vac peripherals
• Solid state relay
• Incandescent lamp dimmers
• Temperature controls
• Motor controls
© 2003 Fairchild Semiconductor Corporation
Page 1 of 11
4/14/03
1 page  
6-PIN DIP RANDOM-PHASE
OPTOISOLATORS TRIAC DRIVERS
(600 VOLT PEAK)
MOC3051-M MOC3052-M
AC SINE
0ϒ 180°
LED PW
LED CURRENT
LED TURN OFF MIN 200 µs
Figure 5. Minimum Time for LED Turn–Off to Zero
Cross of AC Trailing Edge
Figure. 6 Holding Current, I H vs. Temperature
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
- 40 - 30 - 20 -10 0 10 20 30 40 50 60 70 80
TA , AMBIENT TEMPERATURE (oC)
Figure. 8 LED Trigger Current, I FT vs. dv/dt
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
0.001
0.01
0.1
NORMALIZED TO:
IFT at 3 V
1 10 100 1000 10000
dv/dt (V/ µs)
Minimum LED Off Time in Phase Control
Applications
In Phase control applications one intends to be able to control
each AC sine half wave from 0 to 180 degrees. Turn on at zero
degrees means full power and turn on at 180 degree means
zero power. This is not quite possible in reality because 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 driver’s turn on pulse at the trailing edge of the AC sine
wave must be limited to end 200 ms before AC zero cross as
shown in Figure 5. This assures that the triac driver has time
to switch off. Shorter times may cause loss of control at the
following half cycle.
10000
Figure. 7 Leakage Current, I DRM vs. Temperature
1000
100
10
1
0.1
-40
-20 0
20 40 60 80
TA , AMBIENT TEMPERATURE (oC)
100
IFT versus dv/dt
Triac drivers with good noise immunity (dv/dt static) have inter-
nal noise rejection circuits which prevent false triggering of the
device in the event of fast raising line voltage transients. Induc-
tive loads generate a commutating dv/dt that may activate the
triac drivers noise suppression circuits. This prevents the
device from turning on at its specified trigger current. It will in
this case go into the mode of “half waving” of the load. Half
waving of the load may destroy the power triac and the load.
Figure 8 shows the dependency of the triac drivers IFT versus
the reapplied voltage rise with a Vp of 400 V. This dv/dt condi-
tion simulates a worst case commutating dv/dt amplitude.
It can be seen that the IFT does not change until a commutat-
ing dv/dt reaches 1000 V/ms. The data sheet specified IFT is
therefore applicable for all practical inductive loads and load
factors.
© 2003 Fairchild Semiconductor Corporation
Page 5 of 11
4/14/03
5 Page 
6-PIN DIP RANDOM-PHASE
OPTOISOLATORS TRIAC DRIVERS
(600 VOLT PEAK)
MOC3051-M MOC3052-M
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO
ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME
ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN;
NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, and (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in a significant injury of the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
© 2003 Fairchild Semiconductor Corporation
Page 11 of 11
4/14/03
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet MOC3051-M.PDF ] | |
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