d1912nk pd b8-0618/91708 ms jk/43098ha(ot)/10794ts/1102 no.4090-1/8 http://onsemi.com semiconductor components industries, llc, 2013 july, 2013 ordering information see detailed ordering and shipping inform ation on page 8 of this data sheet. la4450 overview the la4450 is a single package 2-channel po wer 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 ? two channels in a single package ? p o = 12w ? 2 (v cc = 26.4v, r l = 8 ? , thd = 10%) ? p o = 20w ? 2 (v cc = 26.4v, r l = 4 ? , thd = 10%) ? can drive 4 ? speakers ? built-in standby switch ? minimizes impulse noises functions ? standby switch (active on high (+5v) input) ? on-chip impulse noise protection circuit ? on-chip thermal protection circuit ? on-chip overvoltage and surge protection circuits 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 4a 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.) 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 orderin g number : en4090e monolithic linear ic 2-channel, 26v, power a mplifie r for bus and track in car stereo stresses exceeding those listed in the maximum ratings table may damage the device. if any of these limits are exceeded, device functionality should n ot be assumed, damage may occur and reliability may be affected. functional operation above the stresses listed in the recommended operating ranges is not implied. extended exposure to stresses beyond the recomme nded operating ranges limits may affect device r eliab ility. sip14 36.8x13.8 / sip14h
la4450 no.4090-2/8 electrical characteristics at ta = 25 ? c, v cc = 26.4v, r l = 8 ? , f = 1khz, rg = 600 ? parameter symbol conditions ratings unit min typ max standby current ist standby switch off 1 30 ? a quiescent current i cco rg = 0 50 80 140 ma output power p o1 thd = 10% 10 12 w 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 4 5 3.5 8 12 11 16 20 21 24 25 28 32 0 -20 0 20 40 60 100 120 140 160 80 -35 allowable power dissipation, pd max -- w pd max -- ta ambient temperature, ta -- c infinite heat sink independent ic using silicon grease heat sink attached with a torque of 39n cm 200 x 200 x 1.5mm 3 al 100 x 100 x 1.5mm 3 al 50 x 50 x 1.5mm 3 al product parametric performance is indicated in the electrical characteristics for the listed test conditions, unless otherwise noted. product per formance may not be indicated by the electrical characteristics if operated under different conditions.
la4450 no.4090-3/8 package dimensions unit : mm sip14 36.8x13.8 / sip14h case 127aq issue a xxxxxxxxxx ymddd xxxxx = specific device code y = year m = month ddd = additional traceability data generic marking diagram* *this information is generic. please refer to device data sheet for actual part marking.
la4450 no.4090-4/8 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.4090-5/8 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.4090-6/8 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.4090-7/8 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.4090-8/8 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 ordering information device package shipping (qty / packing) LA4450-E sip14 36.8x13.8 / sip14h (pb-free) 15 / fan-fold la4450f-e sip14 36.8x13.8 / sip14h (pb-free) 14 / fan-fold la4450l-e sip14 36.8x13.8 / sip14h (pb-free) 15 / fan-fold on semiconductor and the on logo are registered trademarks of semiconductor components industries, llc (scillc). scillc owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. a listing of scillc?s product/patent coverage may be accessed at www.onsemi.com/site/pdf/patent-marking.pdf. scillc reserves the right to make changes without further notice to any products herein. scillc mak es no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does scillc assume any liab ility arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequentia l or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s techn ical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use a s components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other applica tion in which the failure of the scillc product could create a situation where personal injury or death may occur. should buyer purchase or use scillc products for an y such unintended or unauthorized application, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, affiliates, and dis tributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of persona linjuryor death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture o fthe part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale i n any manner.
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