technical data 3 w mono btl audio output amplifier fea t ures ordering information plastic sil-9mpf (sot110-1) t a = -40 c to 125 c no external components no sw itch-on/off clicks good overall stability low pow er consumption short circuit proof esd protected on all pins. genera l description t he ILA7056 is a mono output amplifier contained in a 9 pin sil medium pow er package (sot 110). t he device is designed for battery -fed portable mono recorders, radios and television. quick reference da ta s y m b o l p a ra m e t e r c o n d i t i o n s m i n . t y p . ma x . u n i t vp supply voltage 3 1 1 1 8 v po output pow er vp= 11 v, t hd= 10 , rl= 16 > 2 . 5 3 w gv internal voltage gain 3 9 4 0 , 0 4 2 d b ip total quiescent current vp= 11 v; rl= 5 7 m a thd total harmonic distortion po= 0 ,5 w 0 , 2 5 1 % r e v. 00
ILA7056 p i n d e s c r i p t i o n 1 n . c . 2 v p 3 i n p u t ( + ) 4 s i g n a l g r o u n d 5 n . c . 6 o u t p u t ( + ) 7 p o w e r g r o u n d 8 o u t p u t ( - ) 9 n . c . functiona l description t he ILA7056 is a mono output amplifier, designed for battery -fed portable radi os and mains-fed equipment such as television. f o r space reasons there is a trend to decrease the number of exter nal components. f o r por table applications there is also a trend to decrease t he number of battery cells, but still a reasonable output pow er is required. t he ILA7056 fulfills both of t hese requirements. it needs no peripheral com ponents, because it make s use of the bridge- t i ed-load (bt l ) principle. consequently it has, at the same supply voltage, a higher output pow er compared to a conventional single ended output stage. it delivers an output pow er of 1 w into a loudspeaker load of 8 w w i th 6 v supply or 3 w into 16 w loudspeaker at 11 v w i thout need of an external heatsink. t he gain is internally fixed at 40 db. special attention is given to sw itch- on/off click suppression, and it has a good overall stability . t he load can be short circuited at all input conditions. s y m b o l p a ra m e t e r c o n d i t i o n s m i n . ma x . unit v p s u p p l y v o l t a g e - 1 8 v iorm peak output current repetitive - 1 a iosm peak output cu rrent non-repetitive - 1 . 5 a t s tg storage temperature range - 5 5 1 5 0 c t j j u n c t i o n t e m p e r a t u r e - 1 5 0 c plot total pow er dissipation t ^ se < 60 ? ? ? c - 9 w t sc short circuiting time see note 1 - 1 hr note 1. t he load can be short-circui ted at all input conditions. s y m b o l p a r a m e t e r n o m . u n i t hibk from junction to case 10 k/w rtll.a from junction to ambient in free air 55 k/w power dissipa tion assume: vp = 11 v; rl = 16 w. t he maximum sine-w a ve dissipation is 1.52 w . t he rth j-a of the package is 55 k/w . t a mb max = 150 - 55 1.52 = 66.4 c. r e v. 00
ILA7056 cha ra cteristics symbol pa ra meter conditions min. typ. ma x. unit vp ope ra ting s upply v o lta g e 3 11 18 v iqr m rep e titiv e p eak o u t p u t cu rren t - - 0.6 a ip to tal q u i escen t cu rren t - 5 7 ma po output pow e r thd= 10% 2.5 3 - w thd tota l ha rmonic dis t ortion po = 0.5 w - 0.25 1 gv v o ltag e g a in 39 40.5 42 db vno nois e output v o lta g e note 2 - 180 300 uv vno nois e output v o lta g e note 3 - 60 - [jv fre que nc y re s pons e - 20 to 20.000 - hz rr rip p l e rejectio n note 4 36 50 - db av dc-output offs e t v o lta g e note 5 - - 200 mv izj input impe da nc e - 100 - kii 1, input bia s c u rre nt - 100 300 na no tes to th e ch aracteristics 1. w i th a load connected to t he outputs the quiescent current w ill increase, the maximum value of this increase being equal to the dc output offset voltage divided by rl . 2. t he noise output voltage (rms value) is measur ed w i th rs = 5 kw unw eighted (20 hz to 20 khz). 3. t he noise output voltage (rms value) at f = 500 khz is measured w i th rs = 0 w and bandw idth = 5 khz. w i th a practical load (rl = 16 w , ll = 200 mh) t he noise output current is only 50 na. 4. t he ripple rejection is measured w i th rs = 0 w and f = 100 hz to 10 khz. t he ripple voltage (200 mv) is applied to the positive supply rail. 5. rs = 5 kw . r e v. 00
ILA7056 ? 9- p i n p l ast i c p o w e r s i n g l e- i n - l i n e ( s i l - 9 m p f , s o t 110- 1) r e v. 00
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