TDA8932B NXP Semiconductors, TDA8932B Datasheet - Page 31

• Manufacturer Part Number: TDA8932B
• Description: The TDA8932B is a high efficiency class-D amplifier with low power dissipation
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TDA8932B_4
Product data sheet
Fig 19. Output power per channel as a function of
Fig 21. Output power efficiency as a function of
(W/channel)
(%)
P
(1) R
(2) R
(3) R
(4) R
(1) V
(2) V
po
o
100
32
24
16
80
60
40
20
8
0
0
10
0
f
sink for continuous time output power
supply voltage
f
output power per channel
i
i
P
P
= 1 kHz (short time P
L
L
L
L
= 1 kHz;
= 2
= 2
= 2
= 2
= 22 V; R
= 30 V; R
14
4 ; THD+N = 10 %
4 ; THD+N = 0.5 %
8 ; THD+N = 10 %
8 ; THD+N = 0.5 %
5
18
PO
L
L
= 2
= 2
=
22
------------------------ -
2 P
4
8
2 P
10
O
); dashed line will require heat
o
26
+
o
p
(2)
(3)
(4)
(1)
(2)
(1)
30
15
P
o
(W/channel)
001aad780
001aaf886
34
V
P
(V)
Rev. 04 — 18 December 2008
38
20
Fig 20. Power dissipation as a function of supply
Fig 22. Power dissipation as a function of output
(W)
(W)
P
(1) R
(2) R
P
(1) V
(2) V
3.0
2.0
1.0
6
4
2
0
0
10
10
f
P
for continuous time output power
voltage
f
power per channel (two channels driven)
i
i
o
2
P
P
= 1 kHz; power dissipation in junction only; short time
L
L
= 1 kHz; power dissipation in junction only
at THD+N = 10 %; dashed line will require heat sink
= 2
= 2
= 22 V; R
= 30 V; R
14
4
8
10
18
(2)
(1)
L
L
1
= 2
= 2
22
4
8
1
26
Class-D audio amplifier
(1)
(2)
TDA8932B
30
10
P
o
© NXP B.V. 2008. All rights reserved.
(W/channel)
001aad781
001aaf889
34
V
P
(V)
10
38
2
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