TDA2822D dual low-voltage power amplifier supply voltage down to 1.8v lowcrossover distortion low quiescent current bridge or stereo configuration description the TDA2822D is a monolithic integrated circuit in 8 lead (so-8) package. it is intended for use as dual audio power amplifier in portable cassette players, radios and cd players may 1991 application circuit so8 ordering number: TDA2822D absolute maximum ratings symbol parameter value unit v s supply voltage 15 v i o peak output 1 a p tot total power dissipation t amb = 50 c 0.5 w t stg , t j storage and junction temperature -40 to 150 c 1/6
thermal data symbol description value unit r th j-amb thermal resistance junction-ambient max 200 c/w pin connection (top view) figure 1: stereo application and test circuit figure 2: bridge application and test circuit TDA2822D 2/6
electrical characteristics (v s = 6v; t amb = 25c, unless otherwise specified. stereo (test circuit of fig. 1). symbol parameter test condition min. typ. max. unit v s supply voltage 1.8 15 v i d total quiescent drain current 15 ma v o quiescent output voltage 2.7 v v s = 3v 1.2 v i b input bias current 100 na p o output power (each channel) (f = 1khz, d = 10%) v s = 9v v s = 6v r l = 32 w v s = 4.5v v s = 3v v s = 2v 300 120 60 20 5 mw r l = 16 w v s = 6v 170 220 mw r l = 8 w v s = 6v 300 380 mw r l = 4 w v s = 4.5v v s = 3v 320 110 mw mw d distortion r l = 32 w p o = 40mw 0.2 % r l = 16 w p o = 75mw 0.2 % r l = 8 w p o = 150mw 0.2 % g v closed loop voltage gain f = 1khz 36 39 41 db d g v channel balance 1db r i input resistance f = 1khz 100 k w e n total input noise r s = 10k w b = curve a 2 m v r s = 10k w b = 22hz to 22khz 2.5 m v svr supply voltage rejection f = 100hz c1 = c2 = 100 m f24 30 db c s channel separation f = 1khz 50 db bridge (test circuit of fig.2) v s supply voltage 1.8 15 v i d total quiescent drain current r l = 15 ma v os output offset voltage (between the outputs) r l = 8 w 80 mv i b input bias current 100 na p o output power (f = 1khz, d = 10%) v s = 9v v s = 6v r l = 32 w v s = 4.5v v s = 3v v s = 2v 320 50 1000 400 200 65 8 mw r l = 16 w v s = 6v rl = 16w v s = 3v 800 120 mw mw r l = 8 w v s = 4.5v rl = 8w v s = 3v 700 220 mw mw r l = 4 w v s = 3v rl = 4w v s = 2v 350 80 mw mw d distortion r l = 8 w p o = 0.5w f = 1khz 0.2 % g v closed loop voltage gain f = 1khz 39 db r i input resistance f = 1khz 100 k w e n total input noise r s = 10k w b = curve a 2.5 m v r s = 10k w b = 22hz to 22khz 3 m v svr supply voltage rejection f = 100hz 40 db b power bandwidth (-3db) r l = 8 w p o = 1w 120 khz TDA2822D 3/6
figure 3: supply voltage rejection vs. fre- quency figure 4: output power vs. supply voltage (thd = 10%, f = 1khz stereo) figure 5: total power dissipation vs. output power (bridge) figure 6: total power dissipation vs. output power (bridge) TDA2822D 4/6
so8 package mechanical data dim. mm inch min. typ. max. min. typ. max. a 1.75 0.069 a1 0.1 0.25 0.004 0.010 a2 1.65 0.065 a3 0.65 0.85 0.026 0.033 b 0.35 0.48 0.014 0.019 b1 0.19 0.25 0.007 0.010 c 0.25 0.5 0.010 0.020 c1 45 (typ.) d 4.8 5.0 0.189 0.197 e 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 3.81 0.150 f 3.8 4.0 0.15 0.157 l 0.4 1.27 0.016 0.050 m 0.6 0.024 s8 (max.) TDA2822D 5/6
information furnished is believed to be accurate and reliable. however, sgs-thomson microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of sgs-thomson microelectronics. specifications men- tioned in this publi cation are subject to change without not ice. this publication sup ersedes and replaces all information previously supplied. sgs-thomson microelectronics products are not authorized for use as critical components in life support dev ices or systems without ex- press written approval of sgs-thomson microelectronics. ? 1994 sgs-thomson microelectronics - all rights reserved sgs-thomson microelectronics group of companies aust ralia - brazil - france - germany - hong kong - italy - japan - korea - malaysia - malta - morocco - the netherlands - singapore - spain - sweden - switzerland - taiwan - thaliand - united k ingdom - u.s.a. TDA2822D 6/6
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