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BD5444EFV Datasheet, PDF (6/32 Pages) Rohm – Analog Input / Single End Output Class-D Speaker Amplifier
◁
BD5445EFV
●Typical Characteristics Data (SE×2ch）Measured on ROHM’s evaluation board.
Technical Note
26
24
RL=8Ω
22
fin=1kHz
20
18
16
14
12
THD+n=10%
10
8
6
4
THD+n=1%
2
0
8 10 12 14 16 18 20 22 24 26 28 30
VCC(V)
Fig.13 Power supply voltage－Output power (RL=8Ω)
100
90
80
70
60
50
40
30
20 Vcc=24V
RL=8Ω
10 fin=1kHz
0
0 2 4 6 8 10 12 14 16 18 20
OUTPUT POWER(W/ch)
Fig.14 Output power－Efficiency (RL=8Ω)
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
Vcc=24V
RL=8Ω
0.2
fin=1kHz
0
0
5 10 15 20 25 30 35 40
TOTAL OUTPUT POWER(W)
Fig.15 Total output power－Current consumption (RL=8Ω)
26
24
RL=6Ω
22
fin=1kHz
20
18
16
14
12
THD+n=10%
10
8
6
4
THD+n=1%
2
0
8 10 12 14 16 18 20 22 24 26 28 30
VCC(V)
Fig.16 Power supply voltage－Output power (RL=6Ω)
100
90
80
70
60
50
40
30
20 Vcc=24V
RL=6Ω
10 fin=1kHz
0
02 4
6 8 10 12 14 16 18 20
OUTPUT POWER(W/ch)
Fig.17 Output power－Efficiency (RL=6Ω)
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
Vcc=24V
RL=6Ω
fin=1kHz
5 10 15 20 25 30 35 40
TOTAL OUTPUT POWER(W)
Fig.18 Total output power－Current consumption (RL=6Ω)
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2010.05 - Rev.B
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