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pa ckage schematic 9/2/04 p age 1 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) moc3051-m moc3052-m 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 pe rfor- mance of inductive loads. features excellent i ft stability?r emitting diode has low degradation high isolation voltage?inimum 7500 peak vac underwriters laboratory (ul) recognized?ile #e90700 600v peak blocking voltage vde recognized (file #94766) - ordering option v (e.g. moc3052v-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 ? emperature controls motor controls 6 1 6 6 1 1 main term. nc* n/c *do not connect (triac substrate) 1 2 3 anode cathode 4 5 6 main term.
9/2/04 p age 2 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) moc3051-m moc3052-m absolute maximum ratings (t a = 25? unless otherwise noted) p arameters symbol device value units tot al device storage temperature t stg all -40 to +150 ? operating temperature t opr all -40 to +85 ? lead solder temperature t sol all 260 for 10 sec ? j unction temperature range t j all -40 to +100 ? isolation surge voltage (3) (peak ac voltage, 60hz, 1 sec duration) v iso all 7500 vac(pk) t otal device power dissipation @ 25? p d all 330 mw derate above 25? 4.4 mw/? emitter continuous forward current i f all 60 ma reverse voltage v r all 3 v t otal power dissipation 25? ambient p d all 100 mw derate above 25? 1.33 mw/? detector off-state output terminal voltage v drm all 600 v p eak repetitive surge current (pw = 100 ms, 120 pps) i tsm all 1 a t otal power dissipation @ 25? ambient p d all 300 mw derate above 25? 4 mw/?
9/2/04 p age 3 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) moc3051-m moc3052-m *typical values at t a = 25? note 1. test voltage must be applied within dv/dt rating. 2. all devices are guaranteed to trigger at an i f value less than or equal to max i ft . therefore, recommended operating i f lies between max 15 ma for moc3051, 10 ma for moc3052 and absolute max i f (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. electrical characteristics (t a = 25? unless otherwise speci?d) individual component characteristics p arameters test conditions symbol device min typ* max units emitter input forward voltage i f = 10 ma v f all 1.15 1.5 v reverse leakage current v r = 3 v i r all 0.05 100 ? detector p eak blocking current, either direction v drm , i f = 0 (note 1) i drm all 10 100 na p eak on-state voltage, either direction i tm = 100 ma peak, i f = 0 v tm all 1.7 2.5 v critical rate of rise of off-state voltage i f = 0 (?ure 7, @400v) dv/dt all 1000 v/? transfer characteristics (t a = 25? unless otherwise speci?d.) dc characteristics test conditions symbol device min typ* max units led trigger current, either direction main terminal v oltage = 3v (note 2) i ft moc3051-m 15 ma moc3052-m 10 holding current, either direction i h all 280 ?
9/2/04 p age 4 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) moc3051-m moc3052-m i f versus temperature (normalized) this graph (?ure 3) shows the increase of the trigger current when the device is expected to operate at an ambient tempera- ture below 25?. multiply the normalized i ft shown this graph with the data sheet guaranteed i ft . example: t a = -40?, i ft = 10 ma i ft @ -40? = 10 ma x 1.4 = 14 ma phase control considerations led trigger current versus pw (normalized) random phase triac drivers are designed to be phase control- lable. they may be triggered at any phase angle within the ac sine wave. phase control may be accomplished by an ac line z ero 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 ? must have an increased amplitude as shown on figure 4. this graph shows the dependency of the trigger current i ft versus the pulse width can be seen on the chart delay t(d) versus the led trigger current. i ft in the graph i ft v ersus (pw) is normalized in respect to the minimum speci?d i ft f or static condition, which is speci?d in the device characteristic. the normalized i ft has to be multi- plied with the devices guaranteed static trigger current. example: guaranteed i ft = 10 ma, trigger pulse width pw = 3 ? i ft (pulsed) = 10 ma x 5 = 50 ma figure. 4 led current required to trigger vs. led pulse width figure. 2 on-state characteristics on-state voltage - v tm (v) -3 -2 -1 0 1 2 3 on-state current - i tm (ma) -800 -600 -400 -200 0 200 400 600 800 pw in , led trigger pulse width ( s) 1 25 20 15 10 5 0 2510 20 50 10 0 normalized to: pw in 100 s i ft , normalized led trigger current figure. 3 trigger current vs. ambient temperature ambient temperature - t a ( o c) -40 -20 0 20 40 60 80 100 trigger current - i ft (normalized) 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 figure. 1 led forward voltage vs. forward current i f - led forward current (ma) 110 100 v f - forward voltage (v) 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 t a = -55 o c t a = 25 o c t a = 100 o c normalized to t a = 25 c
9/2/04 p age 5 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) moc3051-m moc3052-m 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 z ero power. this is not quite possible in reality because triac driver and triac have a ?ed turn on time when activated at z ero degrees. at a phase control angle close to 180 degrees the drivers turn on pulse at the trailing edge of the ac sine wa ve 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 f ollowing half cycle. i ft versus dv/dt tr iac 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 speci?d trigger current. it will in this case go into the mode of ?alf waving of the load. half wa ving of the load may destroy the power triac and the load. figure 8 shows the dependency of the triac drivers i ft 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 i ft does not change until a commutat- ing dv/dt reaches 1000 v/ms. the data sheet speci?d i ft is therefore applicable for all practical inductive loads and load f actors. figure. 7 leakage current, i drm vs. temperature t a , ambient temperature ( o c) -40 -20 0 20 40 60 80 100 i drm , leakage current (na) 0.1 1 10 100 1000 10000 figure 5. minimum time for led turn?ff to zero cross of ac trailing edge ac sine 0 ? 180 led pw led current led turn off min 200 s figure. 6 holding current, i h vs. temperature t a , ambient temperature ( o c) i h , holding current (ma) -40 1 0.9 0 -30 -20 -10 0 10 20 30 4 050607080 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 dv/dt (v/ s) 0.001 1.5 0.5 10000 normalized to: i ft at 3 v i ft , led trigger current (normalized) 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 0.01 0.1 1 10 100 1000 figure. 8 led trigger current, i ft vs. dv/dt
9/2/04 p age 6 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) moc3051-m moc3052-m t(delay), t(f) versus i ft the triac drivers 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 ft v ersus led pw. the turn on transition time t(f) combined with the power triacs turn on time is important to the power dissipation of this device. 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 v oltages. 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 test 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. rc is measured at this point and recorded. scope i ft v tm t(d) t(f) zero cross detector ext. sync v out function generator phase ctrl. pw ctrl. period ctrl. v o ampl. ctrl. i ft v tm 10 k ? dut 100 ? isol. transf. ac 1 15 vac figure 9. delay time, t(d), and fall time, t(f), vs. led trigger current i ft , led trigger current (ma) 100 0.1 10 20 30 40 50 60 10 t(delay) and t(fall) ( s) 1 t(f) t(d) figure 10. static dv/dt test circuit +400 vdc pulse input r test c test r = 1 k ? mercury wetted relay d.u.t. x100 scope probe applied voltage wa veform v max = 400 v dv/dt = 0.63 v rc rc 252 v 0 volts
9/2/04 p age 7 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) 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 tm max rep. = vp ac/1a 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. t riac driver circuit for noisy environments when the transient rate of rise and amplitude are expected to e xceed 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. t riac driver circuit for extremely noisy environments, as speci?d 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 modi?d snubber network as shown in figure 13 is recom- mended. figure 11. basic driver circuit figure 12. triac driver circuit for noisy environments figure 13. triac driver circuit for extremely noisy environments v cc ret. r led triac driver power triac ac line load r q control r triac driver power triac r led v cc ret. control r s c s mov load ac line r triac driver power triac r s c s mov load ac line v cc ret. control r led r led = (v cc - v f led - v sat q)/i ft r = v p ac line/i tsm t ypical snubber values r s = 33 ? , c s = 0.01 f mov (metal oxide varist or) protects triac and driver from transient overvoltages >v drm max. recommended snubber to pass ieee472 and iec255-4 noise tests r s = 47 w, c s = 0.01 mf
9/2/04 p age 8 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) moc3051-m moc3052-m note all dimensions are in inches (millimeters) pa ck ag e dimensions (through hole) pa ck ag e dimensions (surface mount) pa ck ag e dimensions (0.4 lead spacing) recommended pad layout for surface mount leadform 0.350 (8.89) 0.320 (8.13) 0.260 (6.60) 0.240 (6.10) 0.320 (8.13) 0.070 (1.77) 0.040 (1.02) 0.014 (0.36) 0.010 (0.25) 0.200 (5.08) 0.115 (2.93) 0.100 (2.54) 0.015 (0.38) 0.020 (0.50) 0.016 (0.41) 0.100 (2.54) 15 0.012 (0.30) pin 1 id seating plane 0.350 (8.89) 0.320 (8.13) 0.260 (6.60) 0.240 (6.10) 0.390 (9.90) 0.332 (8.43) 0.070 (1.77) 0.040 (1.02) 0.014 (0.36) 0.010 (0.25) 0.320 (8.13) 0.035 (0.88) 0.006 (0.16) 0.012 (0.30) 0.008 (0.20) 0.200 (5.08) 0.115 (2.93) 0.025 (0.63) 0.020 (0.51) 0.020 (0.50) 0.016 (0.41) 0.100 [2.54] seating plane pin 1 id 0.350 (8.89) 0.320 (8.13) 0.260 (6.60) 0.240 (6.10) 0.070 (1.77) seating plane 0.040 (1.02) 0.014 (0.36) 0.010 (0.25) 0.200 (5.08) 0.115 (2.93) 0.020 (0.50) 0.016 (0.41) 0.100 [2.54] 0.100 (2.54) 0.015 (0.38) 0.012 (0.30) 0.008 (0.21) 0.425 (10.80) 0.400 (10.16) pin 1 id 0.070 ( 1.78 ) 0.060 ( 1.52 ) 0.030 ( 0.76 ) 0.100 ( 2.54 ) 0.305 ( 7.75 ) 0.425 ( 10.79 )
9/2/04 p age 9 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) moc3051-m moc3052-m ordering information marking information option order entry identi?r description ss surface mount lead bend sd sr2 surface mount; tape and reel wt 0.4" 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 moc3051 v x yy q 1 2 6 4 3 5 *note ?parts that do not have the ? option (see de?ition 3 above) that are marked with date code ?25 or earlier are marked in portrait format. de?itions 1f airchild logo 2d e vice number 3 vde mark (note: only appears on parts ordered with vde option ?see order entry table) 4 one digit year code, e.g., ? 5t wo digit work week ranging from ?1 to ?3 6 assembly package code
9/2/04 p age 10 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) moc3051-m moc3052-m re?w pro?e (white package, -m suf?) carrier tape specifications 4.0 0.1 1.5 min user direction of feed 2.0 0.05 1.75 0.10 11.5 1.0 24.0 0.3 12.0 0.1 0.30 0.05 21.0 0.1 4.5 0.20 0.1 max 10.1 0.20 9.1 0.20 1.5 0.1/-0 ramp up = 2?0 c/sec ? peak reflow temperature: 245 c (package surface temperature) ? time of temperature higher than 183 c for 120?80 seconds ? one time soldering reflow is recommended 230 c, 10?0 s time (minute) 0 300 250 200 150 100 50 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 t emperature ( c) time above 183 c, 120?80 sec 245 c peak
life support policy fairchild? 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. 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. 9/2/04 p age 11 of 11 ?2004 fairchild semiconductor corporation 6-pin dip random-phase optoisolators triac drivers (600 volt peak) moc3051-m moc3052-m

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