BD5423MUV Datasheet, PDF (6/17 Pages) Rohm – 17W+17W Class-D Speaker Amplifier for Analog Input

BD5423MUV
●Electrical characteristic curves (Reference data) – Continued
(2) Under Stereo Operation（RL=6Ω）
Technical Note
25
RL=6Ω
THD=10%
20
fin=1kHz
15
10
5
0
8
10
12
14
16
18
VCC (V)
Fig. 18 Output power - Power supply voltage
100
90
80
70
60
50
40
30
20
10
0
0
Vcc=10V
RL=6Ω
fin=1kHz
5
10
15
20
25
OUTPUT POWER (W/ch)
Fig. 19 Efficiency - Output power
100
90
80
70
60
50
40
30
20
10
0
0
Vcc=12V
RL=6Ω
fin=1kHz
5
10
15
20
25
OUTPUT POWER (W/ch)
Fig. 20 Efficiency - Output power
100
90
80
70
60
50
40
30
20
10
0
0
Vcc=16.5V
RL=6Ω
fin=1kHz
5
10
15
20
25
OUTPUT POWER (W/ch)
4
Vcc=16.5V
3
Vcc=12V
Vcc=10V
2
1
RL=6Ω
fin=1kHz
0
0 5 10 15 20 25 30 35 40 45 50
TOTAL OUTPUT POWER (W)
Fig. 21 Efficiency - Output power
Fig. 22 Current consumption - Output power
Dotted lines of the graphs indicate continuous output power to be obtained on musical signal source or by installing
additional heat sinks.
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2009.06 - Rev.A