VDE recognized (File # 94766), ordering option V
(e.g., MOC3043VM)
Applications
Solenoid/valve controls ■ Lighting controls
Static power switches
Temperature controls
AC motor starters
6
1
AC motor drives
E.M. contactors
Solid state relays
6
1
Description
The MOC303XM and MOC304XM devices consist of a AlGaAs
infrared emitting diode optically coupled to a monolithic silicon
detector performing the function of a zero voltage crossing bilateral triac driver.
They are designed for use with a triac in the interface of logic
systems to equipment powered from 115 VAC lines, such as
teletypewriters, CRTs, solid-state relays, industrial controls,
printers, motors, solenoids and consumer appliances, etc.
Characteristics Test Conditions Symbol DeviceMin Typ Max Units
Inhibit VoltageI
Leakage in Inhibited StateI
Note
1. Test voltage must be applied within dv/dt rating.
2. All devices are guaranteed to trigger at an I
(15 mA for MOC3031M & MOC3041M, 10 mA for MOC3032M & MOC3042M, 5 mA for MOC3033M & MOC3043M) and absolute max I
3. This is static dv/dt. See Figure 9 for test circuit. Commutating dv/dt is a function of the load-driving thyristor(s) only.
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 R
allows the dv/dt to be gradually
TEST
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 trig-
1. The mercury wetted relay provides a high speed repeated pulse
gering. τRC is measured at this point and recorded.
158
=
RC
APPLIED VOLTAGE
WAVEFORM
0 VOLTS
252 V
τ
RC
Figure 11. Static dv/dt Test Waveform
(MOC3041M, MOC3042M, MOC3043M)
V
max
dv/dt =
= 400 V
0.63 V
252
max
=
τ
τ
RC
RC
APPLIED VOLTAGE
WAVEFORM
0 VOLTS
Figure 9. Static dv/dt Test Circuit
158 V
τ
RC
Figure 10. Static dv/dt Test Waveform
(MOC3031M, MOC3032M, MOC3033M)
V
max
dv/dt =
= 250 V
0.63 V
max
τ
RC
Typical circuit (Fig 12, 13) 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
is calculated so that I
in
and MOC3042M, or 15 mA for the MOC3031M and MOC3041M. The 39 ohm resistor and 0.01 µF capacitor are for snubbing of the
is equal to the rated I
F
of the part, 5 mA for the MOC3033M and MOC3043M, 10 mA for the MOC3032M
FT
triac and may or may not be necessary depending upon the particular triac and load used.
R
in
V
CC
1
MOC3031M
2
MOC3032M
MOC3033M
3
For highly inductive loads (power factor < 0.5), change this value to 360 ohms.
*
180Ω
6
5
4
1 k
Figure 12. Hot-Line Switching Application Circuit
(MOC3031M, MOC3032M, MOC3033M)
R
in
V
HOT
CC
39Ω
*
0.01
LOAD
115 VAC
NEUTRAL
1
MOC3041M
2
MOC3042M
MOC3043M
3
For highly inductive loads (power factor < 0.5), change this value to 360 ohms.
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not intended to be an exhaustive list of all such trademarks.
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE T O 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 PA TENT RIGHTS, NOR THE RIGHTS OF OTHERS.
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORA TION.
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, or (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 significant injury to the
user.
PRODUCT STA TUS DEFINITIONS
Definition of Terms
Datasheet IdentificationProduct StatusDefinition
Advance Information
Preliminary
No Identification Needed
Formative or
In Design
First Production
Full Production
2. A critical component is 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.
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. I16
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