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 el ectronics 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. 91708 ms jk/43098ha (ot)/10794ts b8-0618/1102 no.4090-1/7 la4450 overview the la4450 is a single package 2-channel power amplifier that supports an operating voltage of 26v. it is particularly well suited for use as the bus and track power ic in car stereo applications. additionally, since the la4450 can drive 4 ? loads, it can be used effectively in high-power high-end products. furthermore, since it supports a high operating voltage and has low distortion, it is also optimal for use in tv and home audio products. features functions ? two channels in a single package ? standby switch (active on high ( + 5v) input) ? p o = 12w 2 (v cc = 26.4v, r l = 8 ? , thd = 10%) ? on-chip impulse noise protection circuit ? p o = 20w 2 (v cc = 26.4v, r l = 4 ? , thd = 10%) ? on-chip thermal protection circuit ? can drive 4 ? speakers ? on-chip overvoltage and surge protection circuits ? built-in standby switch ? minimizes impulse noises specifications maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum supply voltage v cc max rg = 0 (no signal) 37 v maximum output current i o peak 4 a allowable power dissipation pd max infinite heat sink* 25 w operating temperature topr ? 35 to + 80 c storage temperature tstg ? 40 to + 150 c note : * set v cc and r l within ranges that do not cause pd max to exceed 25w. (when v cc is 37v, r l should be 6 ? or larger and when v cc is 35v, r l should be 4 ? or larger.) monolithic linear ic for bus and track in car stereo 2-channel power amplifier orderin g number : en4090d
la4450 no.4090-2/7 operating conditions at ta = 25 c parameter symbol conditions ratings unit recommended supply voltage v cc 26.4 v recommended load resistance r l 8 ? operating supply voltage range v cc op 10 to 30 v electrical characteristics at ta = 25 c, v cc = 26.4v, r l = 8 ? , f = 1khz, rg = 600 ? ratings parameter symbol conditions min typ max unit standby current ist standby switch off 1 30 a quiescent current i cco rg = 0 50 80 140 ma p o1 thd = 10% 10 12 w output power p o2 thd = 10%, r l = 4 ? 20 w voltage gain vg v o = 0dbm 49 51 53 db total harmonic distortion thd p o = 1w 0.07 0.4 % output noise voltage v no rg = 0, bpf-bw = 20hz to 20khz 0.4 1.0 mv ripple exclusion ratio svrr rg = 0, f r = 100hz, v r = 0dbm 45 55 db channel separation chsep v o = 0dbm, rg = 10k ? 45 55 db standby control voltage vst with a 10k ? resistor connected at pin 12 2.5 v cc v package dimensions unit : mm (typ) 3023b
la4450 no.4090-3/7 test circuit + + + + + 10k ? st dc v cc v cc =26.4v bs1 bs2 out1 out2 ch1 pwr gnd ch2 pwr gnd nf2 in2 pre la4450 gnd nf1 in1 100 f 1000 f 1000 f 0.15 f 2.2 ? r l =8 ? r l =8 ? 47 f 1000 f 100 f 100 f 47 f 0.15 f 2.2 ? in1 in2 5v ? + ch1 ? + ch2 on off + + + + 2 3 1 4 5 6 7 10 9 8 11 13 14 12 * * polyester film capacitor * 1. features and usage notes ? pin 12 is the standby pin. the ic operates when a voltage of 2v or higher is applied through the external resistor r1. note that the maximum influx current to pin 12 is 500 a. ? changing the voltage gain ? + + c nf r nf? 75 ? 30k ? in nf out the voltage gain vg can be lowered by connecting an external resistor in series between the nf pin (pins 8 and 14) and c nf . vg = 20log 30k ? 75 + r nf ? however, since the ic may oscilla te if vg is 30db or lower, use a vg of 36db or higher. ? the la4450 includes a thermal protection circuit to prevent damage to or destruction of the ic due to abnormal overheating. as a result, the output may be attenuated or cut off if the application heat sinking is inadequate. ? the la4450 includes an overvoltage protection circuit to protect the ic against power supply surges and abnormal voltages. this circuit has hysteresis characteristics : it operates at between 39 and 40v, and recovers at around 34v. ? although the la4450 includes a current limiter circuit to pr event damage due to abnormal currents, care must still be exercised to prevent load shorts and other excessive current conditions.
la4450 no.4090-4/7 application circuit example ? + ch1 c1 in1 in1 in2 nf1 nf2 in2 dc v cc ? + ch2 + 10k ? 75 ? 75 ? 2.2 ? r l =8 ? r l =8 ? 30k ? 30k ? r1 off st 5v on + 100 f/35v c10 bs1 bs2 out1 out2 c9 c8 c7 c4 r3 26.4v + + + + 1000 f/35v 47 f/35v 47 f 35v 1000 f/35v + 1000 f/35v 0.15 f 2.2 ? c5 c6 r2 0.15 f c2 + 100 f 6.3v c3 + 100 f 6.3v 10 7 9 8 11 13 14 12 1 2 3 4 5 6 current limiter circuit bias circuit pre-ground standby switch power ground power ground overvoltage protection circuit thermal shutdown protection circuit current limiter circuit ripple filter, impulse noise prevention circuit c6, c7: 0.15 f ......mylar capacitors
la4450 no.4090-5/7 printed circuit board pattern example v cc c10 c5 c8 r2 r3 c4 1 c9 c6 c7 c2 c3 r1 c1 + + + + + + + + out 2 gnd in1 in2 gnd st out 1 copper foiled side 90 100mm 2 p o -- v cc 10 14 18 22 26 30 34 38 5 7 1.0 7 10 2 3 5 2 3 5 output power, p o -- w supply voltage, v cc -- v f = 1khz vg = 51db rg = 600 ? thd = 10% r l = 8 ? rg = 600 ? f = 10khz 1khz 100hz thd -- p o 7 0.1 2 3 7 5 1.0 2 3 7 5 10 2 2 3 7 5 23 57 0.1 23 10 1.0 23 57 output power, p o - - w v cc = 26.4v r l = 8 ? vg = 51db total harmonic distortion, thd -- % rg = 600 ? f = 10khz 1khz 100hz thd -- p o 7 0.1 2 3 7 5 1.0 2 3 7 5 10 2 2 3 7 5 23 57 0.1 1.0 23 10 23 57 output power, p o - - w v cc = 26.4v r l = 4 ? vg = 51db total harmonic distortion, thd -- % p o -- v cc 10 14 18 22 26 30 34 38 5 7 1.0 7 10 2 3 5 2 3 5 output power, p o -- w supply voltage, v cc -- v f = 1khz vg = 51db rg = 600 ? thd = 10% r l = 4 ?
la4450 no.4090-6/7 pd -- p o 7 2 3 2 3 5 7 10 23 0.1 1.0 57 23 23 10 57 power dissipation, pd -- w output power, p o - - w f = 1khz r l = 8 ? (dual) 35v 30v 26.4v vg = 51db converted to 0db. f response 2 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 2 357 100 23 57 1k 23 57 10k 23 57 100k response -- db frequency, f -- hz v cc = 26.4v r l = 8 ? rg = 600 ? ch1 ch2 svrr -- f r 7 -80 -70 -60 -50 -40 -30 -20 -10 0 23 100 57 1k 23 5 10k 23 5 7 ripple exclusion ratio, svrr -- db ripple frequency, f r -- hz v cc = 26.4v r l = 8 ? rg = 0 v ccr = 0dbm vg = 51db svrr -- v ccr 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 -80 -70 -60 -50 -40 -30 -20 -10 0 ripple exclusion ratio, svrr -- db ripple voltage, v ccr - - vrms v cc = 26.4v r l = 8 ? rg = 0 f r = 100hz vg = 51db rg = 10k ? rg = 0 v no -- v cc 6 101418222630343842 -0.2 0 0.2 0.4 0.6 0.8 1.0 output noise voltage, v no -- mv supply voltage, v cc -- v vg = 51db r l = 8 ? bpf = 20hz to 20khz ch2 ch1 ch1 ch2 v cc = 26.4v r l = 8 ? rg = 10k ? v o = 0dbm sep -- f 2 -80 -70 -60 -50 -40 -30 35 100 7235 1k 7235 10k 7235 100k 7 frequency, f -- hz separation, sep -- db v cc = 26.4v r l = 8 ? bpf = 20hz to 20khz/--3db vg = 51db v no -- rg 5 0 0.2 0.4 0.6 0.8 1.0 1.2 7 1k 23 5 10k 72 100k 2 357 signal source resistance, rg -- ? output noise voltage, v no -- mv i cco -- v cc 0 4 8 121620242832364044 -20 0 20 40 60 80 100 120 140 quiescent current, i cco -- ma supply voltage, v cc -- v r l = 8 ? rg = 0
la4450 ps no.4090-7/7 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. pd -- p o 7 2 3 5 2 3 5 7 10 23 0.1 1.0 57 23 10 23 57 power dissipation, pd -- w output power, p o -- w f = 1khz r l = 4 ? (dual) 30v 26.4v r l = 4 ? 8 ? p o -- ta -40 1.0 2 7 3 5 2 3 5 10 -20 0 20 40 60 80 100 output power, p o -- w ambient temperature, ta -- c v cc = 26.4v f = 1khz thd = 10% rg = 600 ? 35v 11v 26.4v v n -- ta -40 0 2 4 6 8 10 12 14 16 18 20 -20 0 20 40 60 80 100 output pin voltage, v n -- v ambient temperature, ta -- c rg = 0 this catalog provides information as of sept ember, 2008. specifications and information herein are subject to change without notice.
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