The TDA8933B is a high-efficiency class D amplifier with low power dissipation

TDA8933B

Manufacturer Part NumberTDA8933B
DescriptionThe TDA8933B is a high-efficiency class D amplifier with low power dissipation
ManufacturerNXP Semiconductors
TDA8933B datasheet
 
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NXP Semiconductors
30
P o
(W/channel)
20
(3)
10
(4)
0
10
12 14
16
18
20
22
24 26
f
= 1 kHz; Short time P
i
o
(1) R
= 2
8
SE at THD = 10 %
L
(2) R
= 2
8
SE at THD = 0.5 %
L
(3) R
= 2
4
SE at THD = 10 %
L
(4) R
= 2
4
SE at THD = 0.5 %
L
Fig 20. Maximum output power per channel as a
function of supply voltage
4
V
o
(V)
3
2
1
Sleep
0
0
0.5
1
1.5
V
> 2 V; f
= 1 kHz; V
ENGAGE
i
Fig 22. Output voltage as a function of voltage on pin
POWERUP
TDA8933B_1
Preliminary data sheet
010aaa513
(W)
(1)
(2)
28 30 32 34
36
V
(V)
P
Fig 21. Power dissipation as a function of supply
010aaa515
Operating
2
2.5
3
V
(V)
POWERUP
= 100 mV (RMS)
i
Fig 23. Output voltage as a function of voltage on pin
Rev. 01 — 23 October 2008
TDA8933B
Class D audio amplifier
4.0
P
3.0
(1)
2.0
1.0
0.0
10
12 14
16
18
20
22
24 26
28 30 32 34
f
= 1 kHz; P
at THD+N = 10 %;
i
o
Power dissipation in junction only
(1) R
= 2
4
SE
L
(2) R
= 2
8
SE
L
voltage
4
V
o
(V)
3
2
1
Mute
0
0
0.5
1.0
1.5
2.0
V
V
= 2 V; f
= 1 kHz; V
= 100 mV (RMS)
POWERUP
i
i
ENGAGE
010aaa514
(2)
36
V
(V)
P
010aaa516
Operating
2.5
3.0
(V)
ENGAGE
© NXP B.V. 2008. All rights reserved.
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