English
Language : 

TDA8933 Datasheet, PDF (39/47 Pages) NXP Semiconductors – Class-D audio amplifier
◁
NXP Semiconductors
TDA8933
Class-D audio amplifier
40
Po
(W)
30
20
10
010aaa208
(1)
(2)
(3)
(4)
5.0
P
(W)
4.0
3.0
(1)
2.0
1.0
010aaa210
(2)
0
10
15
20
25
30
35
VP (P)
fi = 1 kHz
(1) RL = 16 Ω BTL; THD = 10 %
(2) RL = 16 Ω BTL; THD = 0.5 %
(3) RL = 8 Ω BTL; THD = 10 %
(4) RL = 8 Ω BTL; THD = 0.5 %
Fig 34. Output power as a function of supply voltage
0.0
10
18
26
34
42
VP (V)
fi = 1 kHz; power dissipation in junction only; short
time PO at THD+N = 10 %
(1) RL = 8 Ω BTL
(2) RL = 16 Ω BTL
Fig 35. Power dissipation as a function of supply
voltage
32
(2)
Po
(W)
24
(1)
16
010aaa209
8
0
0
120
240
360
480
600
time (s)
(1) VP = 25 V
(2) VP = 31 V
2 layer application board (55 mm × 45 mm), 35 µ
copper, FR4 base material in free air with natural
convection.
a. RL = 16 Ω BTL; fi = 1 kHz
Fig 36. Output power as a function of time
20
Po
(1)
(W)
16
010aaa230
12
8
4
0
0
150
300
450
600
time (s)
(1) VP = 17 V
b. RL = 8 Ω BTL; fi = 1 kHz
TDA8933_1
Preliminary data sheet
Rev. 01 — 15 May 2007
© NXP B.V. 2007. All rights reserved.
39 of 47
 ▷