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BD5426EFS-E2
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P17
T
echnical Note
4/16
BD5426EFS
www.rohm.com
2010.05 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●
Electrical characteristic cu
rves
(Reference data) – Continued
0
10
20
30
40
50
60
70
80
90
100
0
5
10
15
20
O
UTP
UT
P
O
WE
R
(W/
c
h)
EF
F
ICIE
N
CY (
%)
V
cc=10V
R
L
=8Ω
f
i
n=1k
H
z
0
10
20
30
40
50
60
70
80
90
100
0
5
10
15
20
OU
TPU
T P
OWE
R (
W/ch)
EFFI
CIE
NCY (%)
Vcc=12V
R
L
=8Ω
fi
n=1kH
z
Fig. 7 Efficiency - Output power
Fig. 8 Efficiency - Output power
0
10
20
30
40
50
60
70
80
90
100
0
5
10
15
20
O
U
TP
U
T
P
O
WE
R
(W
/ch)
EFFI
C
IEN
C
Y
(%
)
V
cc
=16.
5V
R
L
=8Ω
f
i
n=1k
Hz
0
1
2
3
0
5
10
15
20
25
30
35
40
TO
TA
L O
U
TPU
T P
O
WE
R
(W)
I
CC
(A
)
V
cc=10V
V
cc=12V
V
cc=16.5V
R
L
=8Ω
f
i
n=1k
Hz
Fig. 9 Efficiency - Output power
Fig.
10
Current consumption - Output power
Fig. 1
1 Current
consumption - Power supply
voltage
Fig. 12 FFT of Output Noise V
oltage
0
10
20
30
40
50
60
70
80
90
100
8
1
01
21
41
61
8
V
CC
(V)
I
CC
(m
A)
S
amplin
g
Mu
t
e
R
L
=8Ω
無信号時
Without
signal
-140
-120
-100
-80
-60
-40
-20
0
10
100
1000
10000
100000
FREQ
UEN
CY
(Hz
)
NOISE FFT (dBV)
V
cc=12V
R
L
=8Ω
無信号時
BW=
2
0
～2
0
kHz
Without
signal
T
echnical Note
5/16
BD5426EFS
www.rohm.com
2010.05 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●
Electrical characteristic curves (Reference data) – Continued
MUTEX
Pin
20
TM
Pin
26
Speaker
Output
10m
sec/d
iv
2V/d
iv
5V/d
iv
10V/d
iv
Vcc=12V
R
L
=8
Ω
Po=500m
W
fi
n=500Hz
M
UTEX
Pin
2
0
TM
P
in
26
10msec/
div
2V/div
5V/d
iv
10V/d
iv
Vcc=12V
R
L
=8
Ω
Po=
500mW
fin
=500Hz
Speaker
Output
Fig. 13
W
ave form when Releasing Soft-mute
Fig. 14
W
ave form when
Activating Soft-mute
VCCA
VHOLD
Pin
27
Vcc=
12
V
R
L
=8
Ω
Po=500m
W
f
in=3kHz
20msec/d
iv
2V/d
iv
5V/
di
v
5V/d
iv
TM
Pin
26
VCCA
VHOLD
Pin
27
Vcc=
12
V
R
L
=8
Ω
Po=5
00mW
fin=3kHz
2mse
c/
di
v
2V/d
iv
5V/
div
5V/d
iv
TM
Pin
26
Speaker
Output
Speaker
Output
Fig. 15
Wa
ve form on Instantaneous Power Interruption
(20msec / div)
Fig. 16
Wa
ve form on Instantaneous Power Interruption
(2msec / div)
Speaker
Output
Vcc=12V
R
L
=8
Ω
Po=5W
THD+n
=10
%
fin=1kHz
R2=91
k
Ω
R3=22
k
Ω
200
μ
sec/d
iv
5V/d
iv
So
ft C
l
ip
So
ft Cl
ip
Fig. 17
W
ave form on Output Power Limiter function
(Po = 5W)
T
echnical Note
6/16
BD5426EFS
www.rohm.com
2010.05 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●
Electrical characteristic cu
rves
(Reference data) – Continued
(2)Under S
tereo Operatio
n(R
L
=6
Ω
)
0
5
10
15
20
25
8
1
01
21
41
61
8
V
CC
(V)
OUTP
UT POW
ER (
W)
THD=10%
R
L
=6Ω
fin=1k
Hz
Fig. 18 Output power - Power supply voltage
0
10
20
30
40
50
60
70
80
90
100
0
5
10
15
20
25
O
U
TP
U
T
PO
WE
R
(
W/ch)
E
F
FI
CIE
NCY
(%)
V
cc=10V
R
L
=6Ω
f
i
n=1kH
z
0
10
20
30
40
50
60
70
80
90
100
0
5
10
15
20
25
O
U
TP
U
T PO
WER
(
W/ch)
EFFICI
ENCY
(%)
V
cc=12V
R
L
=6Ω
f
i
n=1k
H
z
Fig. 19 Efficiency - Output power
Fig. 20 Efficiency - Output power
0
10
20
30
40
50
60
70
80
90
100
0
5
10
15
20
25
O
U
TP
U
T
P
O
WE
R
(
W/ch)
E
F
FI
CI
E
N
CY (%)
V
cc=16.
5V
R
L
=6Ω
f
i
n=1kH
z
0
1
2
3
4
0
5
10
15
20
25
30
35
40
45
50
TO
TA
L
OUTPUT
P
OWER
(
W
)
ICC (A
)
V
cc=10V
V
cc=12V
V
cc=16.5V
R
L
=6Ω
f
i
n=1k
Hz
Fig. 21 Efficiency - Output power
Fig.
22 Current consumption - Output po
wer
Dotted lines of the graphs in
dicate c
ontinuous o
utput power to be obtained
on musical signal s
ource or by installing
additional heat sinks.
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P17
BD5426EFS-E2
Mfr. #:
Buy BD5426EFS-E2
Manufacturer:
Description:
Audio Amplifiers 13V 8ohm 10W+10W
Lifecycle:
New from this manufacturer.
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