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 september 2003 ? 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
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 (1) 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 (1) 3.8 4.0 0.15 0.157 l 0.4 1.27 0.016 0.050 m 0.6 0.024 s8 (max.) (1) d and f do not include mold flash or protrusions. mold flash or potrusions shall not exceed 0.15mm (.006inch). so8 outline and mechanical data tda2822d 5/6
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