page 1 of 6 1. features w ide supply voltage range: v cc =3 ~16v low quiescent current minimum external components required good ripple rejection no cross - over distortion low power dissipation 2. block diagram and pin description 2.1 block diagram 2.2 p in description p in no. symbol description pin no. symbol description 1 comp frequency compensation 5 out output 2 nf negative feedback 6 v cc supply voltage 3 in input 7 bs bootstrap 4 gnd ground 8 s rip ripple rejection + 2 3 4 6 1 5 8 7 hsin semiconductor pte ltd www.hsin .com.sg low power audio power am p lifier HC820
page 2 of 6 3. electrical characteristics 3 .1 absolute maximum ratings unless otherwise specified, t amb = 25 parameter symbol value unit supply voltage v cc 16 v output peak current i op 1.5 a power dissipation (t amb =50 ) p d 1 w storage temperature t stg - 40 ~ 150 junction temperature t j 150 3.2 electrical characteristics unless otherwise spe cified, t amb = 25 , v cc = 9v value parameter symbol test conditions min typ max unit supply voltage v cc 3 16 v quiescent output voltage (pin 5) v5 4 4.5 5 v quiescent drain current i cc 4 12 ma bias current (pin 3) i b 0.1 u a thd=10% , f=1 k hz , r f =120 v cc =12v , r l =8 2 v cc =9v , r l =4 1.6 v cc =9v , r l =8 0.9 1.2 v cc =6v , r l =4 0.75 v cc =3.5v , r l =4 0.25 output power p o v cc =3v , r l =4 0.20 w p o =1.2w , r l =8 , f=1 k hz r f =33 16 r f =12 0 60 p o =50mv , r l =8 , f=1 k hz r f =33 3.5 input sensitivity vi (rms) r f =120 12 mv input resistance (pin 3) r in f=1 k hz 5 m r l =8 , c5=10 3 uf , r f =120 c8=680 p f 25~7 , 000 frequency response ( - 3db) bw c8=220 p f 25~20 , 000 hz p o =50mv , r l =8 , f=1 k hz r f =33 0.8 total harmonic distortion thd r f =120 0.4 % open loop voltage gain a vo f=1 kh z , r l =8 75 db r l =8 , f=1 k hz , r f =33 45 closed loop voltage gain a v r l =8 , f=1 k hz , r f =120 34 db input noise voltage v ni 3 u v input noise current i ni 0.4 na p o =1.2w , r l =8 , a v =34db r1=10 k 80 signal to noise ratio (s+n)/ n r1=50 k 70 db ripple rejection svr r l =8 , f rip =100hz c6=47 u f , r f =120 42 db
page 3 of 6 4. test circuit 5. characteristics curve + 1 2 3 4 5 6 7 8 vcc c1 c2 c3 c4 c5 c6 c7 c 100uf /15v 0.1uf 100uf /15v 220uf /15v + + + + 100uf /6v 47uf /10v r1 r2 r3 rf b + 0.22 uf 1 56 10k r l vin vout 0 4 8 12 16 20 2 0 4 6 8 10 vcc (v) i (ma) i ? vcc 0 50 100 150 35 45 25 15 rf svr ? rf svr db vcc=9v c6=47 f f ripple =100hz 2 4 6 8 2 4 6 8 2 4 6 8 vcc=9v r l =8 f 2 =5khz =10khz 2 f f 2 =20khz 2 4 6 8 2 4 6 8 10 10 2 r f 10 10 10 2 3 c b pf c b ? r f d d
page 4 of 6 0 2 4 6 8 10 12 14 16 vcc v 18 20 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 po (w) po ? vcc r l = 4 8 16 d = 10% f = 1khz rf = 120 0 0.4 0.8 1.2 0 4 8 12 po (w) thd (%) thd ? po vcc = 9v r l = 8 rf = 120 f = 1khz 0 0.5 1 1.5 20 0 40 60 80 po (w) pd ? po 0.1 0.2 0.3 0.4 0.5 pd (w) (%) pd 0 4 8 12 16 vcc v 20 0 0.2 0.4 0.6 0.8 pd ? vcc r l = 4 8 16 pd w 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 10 10 10 10 2 3 4 f (hz) -5 -4 -3 -2 -1 0 rf = 120 cb = 680pf cb = 220pf frequency response 2 4 6 8 2 4 6 8 2 4 6 8 2 4 6 8 10 10 10 10 2 3 4 f (hz) 1 2 3 4 5 0 thd (%) thd ? f po = 500mw po = 50mw vcc = 9v r l = 8 r =120 f
page 5 of 6 6. application circuit fig 6.1 fig 6.2 + 1 2 3 4 5 6 7 8 vcc c1 c2 c3 c4 c5 c6 c7 c 100 f /15v 0.1 f 100 f /15v 220 f /15v + + + + 100 f /6v 47 f /10v r1 r2 r3 rf b + 0.22 f 1 56 10k r l vin + 1 2 3 4 5 6 7 8 vcc c1 c2 c3 c4 c5 c6 c 100 f /15v 0.1 f 220 f /15v + + + + 100 f /6v 47 f /10v r1 r2 rf b 0.22 f 1 10k r l vin
page 6 of 6 7. package dimensions
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