LITEON MOC 3052 Datasheet

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MOC3051-M MOC3052-M

PACKAGE

SCHEMATIC

ANODE

MAIN TERM.

CATHODE

NC*

N/C

*DO NOT CONNECT (TRIAC SUBSTRATE)

MAIN TERM.

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 performance of inductive loads.

FEATURES

• Excellent I

• 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. MOC3052V-M)

stability—IR emitting diode has low degradation

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

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MOC3051-M MOC3052-M

ABSOLUTE MAXIMUM RATINGS

Parameters Symbol Device Value Units

TOTAL DEVICE

Storage Temperature T

Operating Temperature T

Lead Solder Temperature T

Junction Temperature Range T

(3)

Isolation Surge Voltage

Total Device Power Dissipation @ 25°C

Derate above 25°C 4.4 mW/°C

EMITTER

Continuous Forward Current I

Reverse Voltage V

Total Power Dissipation 25°C Ambient

Derate above 25°C 1.33 mW/°C

DETECTOR

Off-State Output Terminal Voltage V

Peak Repetitive Surge Current (PW = 100 ms, 120 pps) I

Total Power Dissipation @ 25°C Ambient

Derate above 25°C 4 mW/°C

(peak AC voltage, 60Hz, 1 sec duration) V

= 25°C unless otherwise noted)

STG

OPR

SOL

ISO

DRM

TSM

All -40 to +150 °C

All -40 to +85 °C

All 260 for 10 sec °C

All -40 to +100 °C

All 7500 Vac(pk)

All

All 60 mA

All 3 V

All

All 600 V

All 1 A

All

330 mW

100 mW

300 mW

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MOC3051-M MOC3052-M

ELECTRICAL CHARACTERISTICS

= 25°C Unless otherwise speciﬁed)

INDIVIDUAL COMPONENT CHARACTERISTICS

Parameters Test Conditions Symbol Device Min Typ* Max Units

EMITTER

Input Forward Voltage I

Reverse Leakage Current V

= 10 mA V

= 3 V I

DETECTOR

Peak Blocking Current, Either Direction V

Peak On-State Voltage, Either Direction I

Critical Rate of Rise of Off-State Voltage I

TRANSFER CHARACTERISTICS

, I

= 0 (note 1) I

DRM

= 100 mA peak, I

= 0 (ﬁgure 7, @400V) dv/dt All 1000 V/µs

= 25°C Unless otherwise speciﬁed.)

= 0 V

DRM

DC Characteristics Test Conditions Symbol Device Min Typ* Max Units

LED Trigger Current, either direction

Main terminal

Voltage = 3V (note 2)

Holding Current, Either Direction I

*Typical values at T

= 25°C

MOC3051-M 15

MOC3052-M 10

All 280 µA

Note

1. Test voltage must be applied within dv/dt rating.

2. All devices are guaranteed to trigger at an I between max 15 mA for MOC3051, 10 mA for MOC3052 and absolute max I

value less than or equal to max I

. Therefore, recommended operating I

(60 mA).

3. Isolation surge votlage, VISO, is an internal device breakdown rating. For this text, pins 1 and 2 are common, and pins 4, 5 and 6 are common.

All 1.15 1.5 V

All 0.05 100 µA

All 10 100 nA

All 1.7 2.5 V

lies

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MOC3051-M MOC3052-M

Figure. 1 LED Forward Voltage vs. Forward Current

1.8

1.7

1.6

1.5

1.4

1.3

- FORWARD VOLTAGE (V)

1.2

1.1

1.0 110100

IF - LED FORWARD CURRENT (mA)

Figure. 3 Trigger Current vs. Ambient Temperature

1.4

1.3

1.2

1.1

(NORMALIZED)

1.0

0.9

0.8

TRIGGER CURRENT - I

0.7

NORMALIZED TO TA = 25°C

0.6

-40 -20 0 20 40 60 80 100

AMBIENT TEMPERATURE - TA (oC)

versus Temperature (normalized)

TA = -55oC

= 25oC

= 100oC

This graph (ﬁgure 3) shows the increase of the trigger current when the device is expected to operate at an ambient temperature below 25°C. Multiply the normalized I with the data sheet guaranteed I

shown this graph

Example: T

= -40°C, I

@ -40°C = 10 mA x 1.4 = 14 mA

= 10 mA

Phase Control Considerations

LED Trigger Current versus PW (normalized)

Random Phase Triac drivers are designed to be phase controllable. They may be triggered at any phase angle within the AC

Figure. 2 On-State Characteristics

800

600

400

(mA)

200

-200

-400

ON-STATE CURRENT - I

-600

-800

-3 -2 -1 0 1 2 3

ON-STATE VOLTAGE - VTM (V)

Figure. 4 LED Current Required to Trigger vs. LED Pulse Width

NORMALIZED TO:

≥

100 µs

, NORMALIZED LED TRIGGER CURRENT

251020 50 10

PWin, LED TRIGGER PULSE WIDTH (µs)

PWin

sine wave. Phase control may be accomplished by an AC line zero cross detector and a variable pulse delay generator which is synchronized to the zero cross detector. The same task can be accomplished by a microprocessor which is synchronized to the AC zero crossing. The phase controlled trigger current may be a very short pulse which saves energy delivered to the input LED. LED trigger pulse currents shorter than 100 µs must have an increased amplitude as shown on Figure 4. This graph shows the dependency of the trigger current I

versus the

pulse width can be seen on the chart delay t(d) versus the LED trigger current.

in the graph I

minimum speciﬁed I the device characteristic. The normalized I

versus (PW) is normalized in respect to the

for static condition, which is speciﬁed in

has to be multi-

plied with the devices guaranteed static trigger current.

Example: Guaranteed I I

(pulsed) = 10 mA x 5 = 50 mA

= 10 mA, Trigger pulse width PW = 3 µs

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MOC3051-M MOC3052-M

Minimum LED Off Time in Phase Control Applications

AC SINE

Figure 5. Minimum Time for LED Turn–Off to Zero

180

LED PW

LED TURN OFF MIN 200 µs

Cross of AC Trailing Edge

LED CURRENT

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.

Figure. 7 Leakage Current, I

10000

vs. Temperature

DRM

Figure. 6 Holding Current, IH vs. Temperature

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

, HOLDING CURRENT (mA)

0.1

-40

-30 -20 -10 0 10 20 30 4050607080

TA, AMBIENT TEMPERATURE (oC)

Figure. 8 LED Trigger Current, IFT vs. dv/dt

1.5

1.4

1.3

1.2

1.1

0.9

0.8

0.7

, LED TRIGGER CURRENT (NORMALIZED)

0.6

0.5

0.001

0.01 0.1 1 10 100 1000

dv/dt (V/µs)

NORMALIZED TO:

IFT at 3 V

10000

1000

100

, LEAKAGE CURRENT (nA)

DRM

0.1

-40 -20 0 20 40 60 80 100

TA, AMBIENT TEMPERATURE ( o C)

versus dv/dt

Tr iac drivers with good noise immunity (dv/dt static) have internal noise rejection circuits which prevent false triggering of the device in the event of fast raising line voltage transients. Inductive 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 I

versus

the reapplied voltage rise with a Vp of 400 V. This dv/dt condition simulates a worst case commutating dv/dt amplitude.

It can be seen that the I ing dv/dt reaches 1000 V/ms. The data sheet speciﬁed I

does not change until a commutat-

is therefore applicable for all practical inductive loads and load factors.

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MOC3051-M MOC3052-M

Figure 9. Delay Time, t(d), and Fall T ime, t(f),

100

t(delay) AND t(fall) ( s)

0.1 10 20 30 40 50 60

+400

Vdc

PULSE INPUT

MERCURY

vs. LED Trigger Current

t(d)

t(f)

IFT, LED TRIGGER CURRENT (mA)

TEST

WETTED

RELAY

TEST

D.U.T.

R = 1 k

SCOPE PROBE

Ω

X100

t(delay), t(f) versus I

The triac driver’s turn on switching speed consists of a turn on delay time t(d) and a fall time t(f). Figure 9 shows that the delay time depends on the LED trigger current, 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 trigger pulses. This dependency is shown in the graph I

versus LED PW.

The turn on transition time t(f) combined with the power triac’s turn on time is important to the power dissipation of this device.

ISOL. TRANSF.

10 k

SCOPE

t(d)

t(f)

DUT

Ω

100

Ω

ZERO CROSS

DETECTOR

EXT. SYNC

FUNCTION

GENERATOR

out

115 VAC

PHASE CTRL. PW CTRL. PERIOD CTRL. Vo AMPL. CTRL.

APPLIED VOLTAGE

WAVEFORM

0 VOLTS

252 V

Figure 10. Static dv/dt Test Circuit

max

dv/dt =

= 400 V

0.63 V

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 R

allows the dv/dt to

TEST

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

is measured at this

point and recorded.

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MOC3051-M MOC3052-M

APPLICATIONS GUIDE

Basic Triac Driver Circuit

The new random phase triac driver family MOC3052-M and MOC3051-M are very immune to static dv/dt which allows snubberless operations in all applications where external generated noise in the AC line is below its guaranteed dv/dt withstand capability. For these applications a snubber circuit is not necessary when a noise insensitive power triac is used. Figure 11 shows the circuit diagram. The triac driver is directly connected to the triac main terminal 2 and a series Resistor R which limits the current to the triac driver. Current limiting resistor R must have a minimum value which restricts the current into the driver to maximum 1A.

R = Vp AC/I

The power dissipation of this current limiting resistor and the triac driver is very small because the power triac carries the load current as soon as the current through driver and current limiting resistor reaches the trigger current of the power triac. The switching transition times for the driver is only one micro second and for power triacs typical four micro seconds.

Triac Driver Circuit for Noisy Environments

When the transient rate of rise and amplitude are expected to exceed the power triacs and triac drivers maximum ratings a snubber circuit as shown in Figure 12 is recommended. Fast transients are slowed by the R-C snubber and excessive amplitudes are clipped by the Metal Oxide Varistor MOV.

max rep. = Vp AC/1A

LED

TRIAC DRIVER

= (VCC - VF LED - V

LED

R = Vp AC line/I

POWER TRIAC

TSM

LOAD

sat

Q)/I

AC LINE

CONTROL

RET.

Figure 11. Basic Driver Circuit

CONTROL

RET.

TRIAC DRIVER

LED

Typical Snubber values RS = 33 Ω, CS = 0.01 µF MOV (Metal Oxide Varistor) protects triac and driver from transient overvoltages >V

POWER TRIAC

DRM

MOV

max.

AC LINE

LOAD

Figure 12. Triac Driver Circuit for Noisy Environments

Triac Driver Circuit for Extremely Noisy Environments, as

speciﬁed in the noise standards IEEE472 and IEC255-4.

Industrial control applications do specify a maximum transient noise dv/dt and peak voltage which is superimposed onto the AC line voltage. In order to pass this environment noise test a modiﬁed snubber network as shown in Figure 13 is recommended.

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POWER TRIAC

LED

TRIAC DRIVER

MOV

CONTROL

RET.

Recommended snubber to pass IEEE472 and IEC255-4 noise tests RS = 47 W, CS = 0.01 mF

Figure 13. Triac Driver Circuit for Extremely Noisy

Environments

AC LINE

LOAD

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MOC3051-M MOC3052-M

Package Dimensions (Through Hole) Package Dimensions (Surface Mount)

0.350 (8.89)

0.320 (8.13)

0.014 (0.36)

0.010 (0.25)

Pin 1 ID

0.260 (6.60)

0.240 (6.10)

0.100 [2.54]

0.390 (9.90)

0.332 (8.43)

0.012 (0.30)

0.008 (0.20)

0.320 (8.13)

0.035 (0.88)

0.012 (0.30)

0.070 (1.77)

0.040 (1.02)

Seating Plane

0.200 (5.08)

0.115 (2.93)

0.100 (2.54)

0.015 (0.38)

0.020 (0.50)

0.016 (0.41)

0.350 (8.89)

0.320 (8.13)

0.014 (0.36)

0.010 (0.25)

0.100 (2.54)

Pin 1 ID

0.260 (6.60)

0.240 (6.10)

0.320 (8.13)

15°

0.012 (0.30)

0.070 (1.77)

0.040 (1.02)

Seating Plane

0.200 (5.08)

0.115 (2.93)

0.025 (0.63)

0.020 (0.51)

0.020 (0.50)

0.016 (0.41)

Package Dimensions (0.4” Lead Spacing) Recommended Pad Layout for

Surface Mount Leadform

0.350 (8.89)

0.320 (8.13)

Pin 1 ID

0.260 (6.60)

0.240 (6.10)

0.070 (1.77)

0.040 (1.02)

Seating Plane

0.200 (5.08)

0.115 (2.93)

0.100 (2.54)

0.015 (0.38)

0.020 (0.50)

0.016 (0.41)

0.014 (0.36)

0.010 (0.25)

0.100 [2.54]

NOTE

All dimensions are in inches (millimeters)

0.012 (0.30)

0.008 (0.21)

0.425 (10.80)

0.400 (10.16)

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0.425 (10.79

0.100 (2.54

0.305 (7.75

0.070 (1.78

0.060 (1.52

0.030 (0.76

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MOC3051-M MOC3052-M

ORDERING INFORMATION

Option Order Entry Identiﬁer Description

SSSurface Mount Lead Bend

SD SR2 Surface Mount; Tape and reel

WT0.4" Lead Spacing

300 V VDE 0884

300W TV VDE 0884, 0.4" Lead Spacing

3S SR2V VDE 0884, Surface Mount

3SD SR2V VDE 0884, Surface Mount, Tape & Reel

MARKING INFORMATION

MOC3051

V X YY Q

Deﬁnitions

1Fairchild logo

2Device number

VDE mark (Note: Only appears on parts ordered with VDE

option – See order entry table)

4 One digit year code, e.g., ‘3’

5Two digit work week ranging from ‘01’ to ‘53’

6 Assembly package code

*Note – Parts that do not have the ‘V’ option (see deﬁnition 3 above) that are marked with date code ‘325’ or earlier are marked in portrait format.

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MOC3051-M MOC3052-M

Carrier Tape Specifications

4.5 ± 0.20

0.30 ± 0.05

21.0 ± 0.1

0.1 MAX

User Direction of Feed

Reﬂow Proﬁle (White Package, -M Sufﬁx)

300

280

260

240

220

200

180

160

°C

140

120

100

0 60 180120 270

12.0 ± 0.1

2.0 ± 0.05

4.0 ± 0.1

10.1 ± 0.20

1.822°C/Sec Ramp up rate

33 Sec

Time (s)

1.5 MIN

9.1 ± 0.20

260°C

Time above

183°C = 90 Sec

1.75 ± 0.10

11.5 ± 1.0

24.0 ± 0.3

1.5 ± 0.1/-0

>245°C = 42 Sec

360

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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.

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