TDA8922C NXP Semiconductors, TDA8922C Datasheet - Page 19

• Manufacturer Part Number: TDA8922C
• Description: The TDA8922C is a high-efficiency Class D audio power amplifier
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TDA8922C_1
Product data sheet
Equation 5
of TFB and total thermal resistance from junction to ambient.
Power dissipation (P) is determined by the efficiency of the TDA8922C. Efficiency
measured as a function of output power is given in
derived as a function of output power as shown in
Fig 9.
(1) R
(2) R
(3) R
(4) R
(5) R
Derating curves for power dissipation as a function of maximum ambient
temperature
th(j-a)
th(j-a)
th(j-a)
th(j-a)
th(j-a)
defines the relationship between maximum power dissipation before activation
= 5 K/W.
= 10 K/W.
= 15 K/W.
= 20 K/W.
= 35 K/W.
Rev. 01 — 7 September 2009
(W)
P
30
20
10
0
0
20
R
th j a
(1)
(2)
(3)
(4)
(5)
–
40
=
T
----------------------- -
j
60
–
P
T
Figure
Figure
amb
2
80
T
amb
19.
20. Power dissipation can be
75 W class-D power amplifier
mbl469
( C)
100
TDA8922C
© NXP B.V. 2009. All rights reserved.
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