specifications of any and all sanyo semiconductor co.,l td. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer ' s products or equipment. to verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer ' sproductsor equipment. any and all sanyo semiconductor co.,ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, av equipment, communication device, office equipment, industrial equ ipment etc.). the products mentioned herein shall not be intended for use for any "special application" (medica l equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, t ransportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of re liability and can directly threaten human lives in case of failure or malfunction of the product or may cause har m to human bodies, nor shall they grant any guarantee thereof. if you should intend to use our products for app lications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. if there is n o consultation or inquiry before the intended use, our customer shall be solely responsible for the use. 53007 ms pc/53096ha(ii)/20293ts/9200ta,ts(k oto)/3050ta,ts(a f) no.3309-1/9 la4425a overview the la4425a is a 5w power amplifier with very few ex ternal parts. the smallest package in the industry [sip-5h(to-126 type)]. only two external parts (only i/o co upling capacitors). almost no evaluation, adjustment and check of its functions as a power ic required and simplified control functions ? wide operation supply range 5 to 16v ? on-chip protection: - over-voltage protection - thermal protection - output d.c. short protection . ? on-chip pop noise reducing circuit specifications maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum supply voltage v cc max rg = 0 18 v surge maximum supply voltage v cc surge giant pulse 200ms rise time 1ms 50 v maximum output current i o peak 3.3 a allowable power dissipation pd max with infinite heat sink 7.5 w operating temperature topr -30 to +80 c storage temperature tstg -40 to +150 c monolithic linear ic for car radio and car stereo 5w power amplifier with very few external parts orderin g numbe r : EN3309D
la4425a no.a0195-2/9 1 5 0.51min 14.25max 9.5 (2.0) (2.0) 10.0 13.0 0.6 (11.8) 2.7 1.2 0.5 1.1 1.5 2.0 (0.75) 3.2 sanyo : sip5h operating conditions at ta = 25 q c, parameter symbol conditions ratings unit recommended supply voltage v cc 13.2 v recommended load resistance r l 4 : operating voltage range v cc op 5 to 16 v operating load resistance range r l op under conditions where maximum ratings are not exceeded 2 to 8 : electrical characteristics at ta 25 q c, v cc = 13.2v, r l = 4 : , f = 1 khz, rg = 600 : , specified board/specified circuit, 30 u 30 u 1.5mm 3 thick aluminum used ratings parameter symbol conditions min typ max unit quiescent current i cco 65 130 ma voltage gain v g v o = 0dbm 43 45 47 db p o 1 13.2 v / 4 : , thd = 10% 4 5 w output power p o 2 14.4 v / 4 : , thd = 10% 5 6 w total harmonic distortion thd v o = 2v 0.1 1.0 % output noise voltage v no rg = 0, bpf = 20 hz to 20 khz 30 40 db svrr1 rg = 0, bpf = 20 hz to 20 khz v r = 0dbm, f r = 100hz 30 40 db ripple rejection ratio svrr2 rg = 0, bpf = 20 hz to 20 khz v r = 0dbm, f r = 100 hz 47 db over-voltage attack v cc x rg = 0 21.5 v starting time t s 0.35 s input resistance r in 50 k : f l 40 hz roll-off frequency f h 90 khz thermal operating temperature tc 125 q c package dimensions unit : mm (typ) 3031c -30 -20 0 20 40 60 80 100 0 2 4 6 8 10 1.2 2.9 4.3 5.7 7.5 pd max -- ta ambient temperature, ta -- c allowable power dissipation, pd max -- w no heat sink 30 30 1.5mm 3 50 50 1.5mm 3 100 100 1.5mm 3 infinite heat sink al heat sink mounting toque 39n . cm with sillicone grease applied. 12 c/w
la4425a no.a0195-3/9 ci 2.2 f 1000 f + + + co 1000 f 1 2 3 4 5 v cc 13.2v speake r 4 ? la4425a sample application circuit x on-chip overvoltage protection x on-chip thermal protection x on-chip pop noise reducing circuit x on-chip output d.c. short protection pin voltage at v cc = 13.2v characteristics input small signal gnd large signal gnd output v cc pin no. 1 2 3 4 5 pin voltage (reference value) ( | 2v be ) 1.4v 0v 0v ( | 1/2v cc ) 6.5v (v cc ) 13.2v ic usage notes maximum ratings if the ic is used in the vicinity of the maximum ratings, even a slight variation in conditions may cause the maximum ratings to be exceeded, there by leading to a breakdown. printed circuit board when drawing the printed circuit pattern, refer to the sample printed circuit pattern. be careful not to form a feedback loop between input and output. comparison of external components external parts our ics now in use la4425a output coupling capacitor { { input coupling capacitor { { bootstrap capacitor { - feedback capacitor { - filter capacitor { - phase compensation capacitor { - oscillation correction polyester film capacitor { - oscillation correction resistor { - total 8 pcs. 2 pcs. note: the power supply capacitor is not counted as a power ic part.
la4425a no.a0195-4/9 p o -- v in 23 23 57 100 57 10 1.0 10 7 5 1.0 7 5 0.1 7 5 3 2 3 2 3 2 7 5 0.1 23 57 1.0 23 57 10 10 7 5 3 2 1.0 7 5 0.1 7 5 3 2 thd -- p o 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 10 23 5 100 23 5 1k 23 5 10k 23 5 100k f response thd -- f 7 5 3 2 1.0 7 5 3 2 0.1 3 357 100 23 57 1k 23 57 10k 23 f h f l 100 80 60 40 20 0 024681012141618202224 12 10 8 6 4 2 0 0 2 4 6 8 1012141618202224 i cco -- v cc v n -- v cc r l =4 ? rg=0 r l =4 ? rg=0 supply voltage, v cc -- v supply voltage, v cc -- v quiescent current, i cco -- ma output pin voltage, v n -- v v cc =13.2v r l =4 ? f=1khz rg=600 ? input voltage, v in -- mv output power, p o -- w v cc =13.2v r l =4 ? f=1khz rg=600 ? output power, p o -- w total harmonic distortion, thd -- % total harmonic distortion, thd -- % response -- db frequency, f -- hz frequency, f -- hz v cc =13.2v r l =4 ? rg=600 ? v o =0dbm v cc =13.2v r l =4 ? rg=600 ? v o =2v(p o =1w) sample printed circuit pattern 1 5 la4425a gnd v cc out co=1000 f ci=2.2 f gnd cv cc =1000 f ?+ ? + ? + in cu-foiled side 78.0 29.0mm 2
la4425a no.a0195-5/9 thd -- v cc 5 3 2 1.0 7 5 3 2 0.1 7 5 6 8 10 12 14 16 18 20 p o -- v cc 12 10 8 6 4 2 0 8 101214161820 i cc , pd -- p o 700 600 500 400 300 200 100 0 7 6 5 4 3 2 1 0 7 0.1 23 57 1.0 23 57 10 i cc , pd -- p o 0 200 0 2 4 6 8 10 400 600 800 1000 1200 7 0.1 23 57 1.0 23 57 10 2 svrr -- v r v no -- rg svrr -- f r svrr -- v cc 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 7 1k 23 57 10k 23 57 100k 2 50 40 30 20 10 0 8 9 10 11 12 13 14 15 16 17 18 19 50 40 30 20 10 0 0 200 400 600 800 1000 1200 50 40 30 20 10 0 057 100 23 57 1k 2 r l =4 ? f=1khz v o =2v(p o =1w) rg=600 ? f=1khz rg=600 ? thd=10% supply voltage, v cc -- v total harmonic distortion, thd -- % supply voltage, v cc -- v output power, p o -- w r l =2 ? r l =4 ? r l =4 ? f=1khz rg=600 ? r l =2 ? f=1khz rg=600 ? output power, p o -- w output power, p o -- w current drain, i cc -- ma current drain, i cc -- ma power dissipation, pd -- w power dissipation, pd -- w i cc v cc =16v v cc =13.2v i cc v cc =16v v cc =13.2v v cc =13.2v r l =4 ? bpf=20hz to 20khz rg=0 0.12mv supply voltage, v cc -- v signal source resistance, rg -- ? output noise voltage, v no -- mv ripple rejection ratio, svrr -- db r l =4 ? v r =0dbm f r =100hz rg=0 bpf=20hz to 20khz ripple rejection ratio, svrr -- db ripple rejection ratio, svrr -- db power supply ripple, v r -- mvrms ripple frequency, f r -- hz v cc =13.2v r l =4 ? f r =100hz rg=0 bpf=20hz to 20khz v cc =13.2v r l =4 ? rg=0 v r =0dbm bpf=20hz to 20khz
la4425a no.a0195-6/9 i cco -- ta v n -- ta p o -- ta 80 60 40 20 0 0 1 2 3 4 5 6 10 8 6 4 2 0 -60 -40 -20 0 20 40 60 80 100 -60 -40 -20 0 20 40 60 80 100 -60 -40 -20 0 20 40 60 80 100 v cc =13.2v r l =4 ? rg=0 ambient temperature, ta -- c ambient temperature, ta -- c quiescent current, i cco -- ma output pin voltage, v n -- v output power, p o -- w v cc =13.2v r l =4 ? f=1khz thd=10% ambient temperature, ta -- c v cc =13.2v/4 ? rg=0 switch"on"locus t s 0.2s/div gnd 2v/div v cc =13.2v/4 ? rg=0 "off"locus 0.2s/div gnd 2v/div v cc =13.2v r l =4 ? rg=0
la4425a no.a0195-7/9 instructions and precautions x connect a capacitor of 1000pf across pins c and d for external disturbance path. x be careful of the ground line artwork when laying out the pr inted circuit pattern. arrange so that the sg route and load current flow-in route do not overlap. refer to the recomme nded printed circuit pattern or make slits, etc. at pins d and e . dual printed circuit pattern example x short circuit tests sanyo semiconductor's recommended printed circuit board: apply v cc =13.2v using a 30 u 30 u 1.5mm 3 thick aluminum board. the ic will be protected from the dc/ac sh orting of switches 1 to 4 above. however, be careful not to damage the ic by turning v cc ?on? when dc short (sw 1 or sw 2) is on. x power supply positive surge the over-voltage protector (v cc x | 21.5v) inside the ic is used to cut all bias routes and reverse bias between b-e of output stage elements, in order to increase the power line?s cap ability of handling positive surge. this means, of course, that a v ces (v cbo ) type output stage element is used instead of the v ceo (v cer ) type. + + 0.15 f 2.2 f 1000 f rg 620 ? 13.2v la4425a r l jaso tester application of giant pulse sw1 sw3 13.2v sw2 sw4 la4425a + + + out1 v cc out2 in1 gnd gnd in2 1 1 cu-foiled side 45.0 75.0mm 2
la4425a no.a0195-8/9 x load resistance and misoperation it should be noted that when r l 2 : and v cc is high, and the switch is turned ?on? when setting is for a signal (thd = 10%), the ground detector (current u voltage schmitt circuit) operates momentarily. x precautions on tab if power voltage is applied to the ic substrate (the heat sink on a set), the ic structure is such that the pn junctions may be burned, causing deterioration or destructio n. consult sanyo semiconductor?s quality assurance department with regard to the energy handling capability (voltage peak value, pulse width). also, the ic tab (substrate) is connected to pin 3, large signal gnd. x test of +v cc to output pin the power pin is in a floating state when a power capacitor is connected, so if +v cc touches output lines a and b , the upper power transistor inside the ic will be damaged. the la4425a has a protective bypass route inside the ic. x starting time (t s ) this is set at 0.35sec/typ, but it can be made shorter by making input capacitor ci smaller, or longer by making it larger. x pop noise the pop noise prevention circuit operates to reduce pop until rg reaches 50k : . however, if rg is left open, the charging route of input capacitor ci is lost, so the pop noise reduction circuit stops operating and click noises become louder. x vg/osc the voltage gain is fixed at 45db inside the ic. it is impossible to change it externally. phase compensation capacitors (350pf/total) are connected between individual stages inside the ic, and the open loop gain is low. in addition, the upper and lower drives are made equivalent so that final stage current gain is adjusted, providing a measure against unwanted high-frequency parasitic oscillation peculiar to power ic?s. x btl connection connection is impossible with ic alone. x reverse mounting of ic the pin assignment is such that there is no danger of damage. x t.s.d (thermal shutdown) operating temperature + + + la4425a 13.2v a b floating 0 20 40 60 80 100 120 140 160 180 tc ( c) i cc ,p o 30 30 1.5mm3 thick al board ta=25 c
la4425a ps no.3309-9/9 sanyo semiconductor co.,ltd. assumes no responsib ility for equipment failures that result from using products at values that exceed, even momentarily, rate d values (such as maximum ra tings, operating condition ranges, or other parameters) listed in products specif ications of any and all sanyo semiconductor co.,ltd. products described or contained herein. sanyo semiconductor co.,ltd. strives to supply high-qual ity high-reliability products, however, any and all semiconductor products fail or malfunction with some probabi lity. it is possible that these probabilistic failures or malfunction could give rise to acci dents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause dam age to other property. when designing equipment, adopt safety measures so that these kinds of accidents or e vents cannot occur. such measures include but are not limited to protective circuits and error prevention c ircuits for safe design, redundant design, and structural design. upon using the technical information or products descri bed herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of sanyo semiconductor co.,ltd. or any third party. sanyo semiconductor co.,ltd. shall not be liable f or any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. information (including circuit diagr ams and circuit parameters) herein is for example only; it is not guaranteed for volume production. any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equi pment, refer to the "delivery specification" for the sanyo semiconductor co.,ltd. product that you intend to use. in the event that any or all sanyo semiconductor c o.,ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities conc erned in accordance with the above law. no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any in formation storage or retrieval system, or otherwise, without the prior written consent of sanyo semiconductor co.,ltd. t.s.d is capable of starting operation at tc 120 to 130 q c. when this is converted to junction temperature (tj) according to the formula below. tj | 165c, tj = qjc . pd + tc as t.s.d operation progresses, the output pin bias voltage drops, and it becomes harder to drive the upper waveform. therefore, the current (i cc ) and power (p o ) show a tendency to decrease. proper cares in mounting radiator fin 1. the mounting torque is in the range of 1. the mounting torque is in the range of 39 to 59 n . cm. 2. the distance between screw holes of the radiator fin must coincide with the distance be tween screw holes of the ic. 3. the screw to be used must have a head equivalent to the one of truss machine screw or binder machine screw defined by jis. washers must be also used to protect the ic case. 4. no foreign matter such as cutting particles shall exist be tween heat sink and radiator fi n. when applying grease on the junction surface, it must be app lied uniformly on the whole surface. 5. because the heat sink mounting tab and the heat sink are at the same electric potential as the chip?s gnd, care must be taken when mounting the heat sink on more than one device. 6. ic lead pins are soldered to the printed circuit board after the radiator fin is mounted on the ic. this catalog provides information as of may, 2007. specifications and inform ation herein are subject to change without notice.
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