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TDA8932B Datasheet(PDF) 35 Page - NXP Semiconductors

Part No. TDA8932B
Description  Class-D audio amplifier
Download  48 Pages
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Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
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TDA8932B Datasheet(HTML) 35 Page - NXP Semiconductors

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TDA8932B_4
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 04 — 18 December 2008
35 of 48
NXP Semiconductors
TDA8932B
Class-D audio amplifier
a. RL =4 Ω; fi = 1 kHz; 2 layer SO32 application
board (55 mm
× 45 mm) without heat sink
b. RL =8 Ω; fi = 1 kHz; 2 layer SO32 application
board (55 mm
× 45 mm) without heat sink
(1) VP =12V
(2) VP = 13.5 V
(3) VP =15V
(1) VP =22V
(2) VP =26V
(3) VP =29V
Fig 32. Output power as a function of time
t (s)
0
600
480
240
360
120
001aaf896
16
8
24
32
0
Po
(W)
(2)
(1)
(3)
t (s)
0
600
480
240
360
120
001aaf899
20
40
60
10
30
50
Po
(W)
0
(2)
(1)
(3)
fi = 1 kHz;
(1) VP =12V; RL =4 Ω
(2) VP =22V; RL =8 Ω
fi = 1 kHz; power dissipation in junction only
(1) VP =12V; RL =4 Ω
(2) VP =22V; RL =8 Ω
Fig 33. Output power efficiency as a function of
output power
Fig 34. Power dissipation as a function of output
power
001aae119
Po (W)
030
20
10
40
60
20
80
100
ηpo
(%)
0
(2)
(1)
001aae120
1.0
2.0
3.0
P
(W)
0
Po (W)
10−2
102
10
10−1
1
(2)
(1)
η
PO
P
o
P
o
p
+
()
--------------------
=


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