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BD5471MUV-E2
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P22
T
echnical Note
4/21
BD5471MUV
www
.rohm.com
2010.06 - Rev
.A
© 2010 ROHM Co., Ltd.
All rights reserved.
●
Block Diagram
●
Pin Assignment <top
view>
●
Pin Assignment T
able
PIN No.
PIN Name
1 BEEP
2 DET_C
3 OUTL+
4 PVDDL
5 PGNDL
6 OUTL-
7 MUTE
8 EAPD
9 REG_SD
10 REG_VDD
1
1 REG_OUT
12 REG_GND
13 OUTR-
14 PGNDR
15 PVDDR
16 OUTR+
17 G1
18 G0
19 INR+
20 INR-
21 A
VDD
22 AGND
23 INL-
24 INL+
MUTE
INR-
INR+
OUTL+
Bias
AGND
AVDD
PVDDL
150k
INL-
INL+
PWM
H-
Bridg
e
Gain
Select
REG_VD
D
BEEP
EAPD
REG_
SD
REG
REG_
OUT
REG_GN
D
PGNDR
PVDDR
G0
G1
Control
Logic
150k
150k
150k
DET_C
4
PGNDL
3.3V
Shor
t
Protection
TSD
UVLO
24
23
10
15
21
3
6
OUTL-
PWM
H-
Bridg
e
Gain
Select
19
20
ERROR
G0
G1
G0
G1
18
G0
G1
7
8
Short
ERROR
OSC
BEEP
Detect
150k
9
1
2
17
OUTR+
OUTR-
16
13
11
150k
Short
Prot
ection
12
22
5
14
ERROR
BEEP
DET_C
OUTL+
PVDD
L
PGNDL
OUTL-
G0
G1
OUTR+
PVDD
R
PGNDR
OUTR-
INL+
INL-
AGND
AVDD
INR-
INR+
MUTE
EAPD
REG SD
REG V
DD
REG O
UT
REG
GN
D
1
2
3
4
5
6
18
17
16
15
14
13
7
8
9
10
11
12
24
23
22
21
20
19
T
echnical Note
5/21
BD5471MUV
www
.rohm.com
2010.06 - Rev
.A
© 2010 ROHM Co., Ltd.
All rights reserved.
●
Application Circuit Example
0.
1μF
S
ing
le-E
nd
ed
Input
Audio
Input L
C2
G0
G1
Gain
Co
ntr
ol
BEEP
2.
2μF
EA
P
D
MUT
E
C7
H：
Active
L：Shutdow
n
RE
G
_
SD
0.0
1
μF
C8
MUT
E
IN
R
-
INR
+
OUTL+
Bia
s
AG
ND
AVDD
PVDD
L
15
0k
IN
L-
INL
+
PWM
H-
Bridge
Ga
in
Sel
e
ct
REG_VDD
BEEP
EAPD
REG_SD
REG
REG_OUT
REG_GND
PG
N
DR
PVD
DR
G0
G1
Con
tr
ol
Log
ic
15
0k
15
0k
15
0k
DET
_C
4
PG
NDL
3.3V
Sh
o
rt
Protection
TS
D
UVLO
24
23
10
15
21
3
6
OUTL-
PWM
H-
Bridge
Ga
in
Sel
e
ct
19
20
ERROR
G0
G1
G0
G1
18
G0
G1
7
8
Sho
rt
ER
ROR
OSC
BEEP
Dete
ct
15
0k
9
1
2
17
OUT
R
+
OUT
R
-
16
13
11
15
0k
Sho
rt
Protection
12
22
5
14
ERROR
0.
1μF
Audio
Input R
C4
C5
10
μF
S
i
ng
l
e-E
nd
ed
Input
C1
C3
0.
1μ
F
0.
1μ
F
Short
Differential input
0.1μF
0.1μF
Differential
Input
Audio
Input
L+
Audio
InputL-
C2
C1
G0
G1
Gain
Control
BEEP
2.2μF
EAPD
MUTE
C7
H：Active
L：Shutdown
REG_
SD
0.01μF
C8
MUTE
INR-
INR+
OUTL+
Bias
AGND
AVDD
PVDDL
150k
INL-
INL+
PWM
H-
Bridge
Gain
Select
REG_
VDD
BEEP
EAPD
REG_SD
REG
REG_OU
T
REG_
GND
PGNDR
PVDDR
G0
G1
Control
Logic
150k
150k
150k
DET_C
4
PGNDL
3.3V
Short
Protection
TSD
UVLO
24
23
10
15
21
3
6
OUTL-
PWM
H-
Bridge
Gain
Select
19
20
ERROR
G0
G1
G0
G1
18
G0
G1
7
8
Short
ERROR
OSC
BEEP
Detect
150k
9
1
2
17
OUTR+
OUTR-
16
13
11
150k
Short
Protection
12
22
5
14
ERROR
0.1μF
0.1μF
Differential
Input
Audio
InputR
+
Audio
InputR-
C4
C3
C5
10μF
Short
Single-Ended input
T
echnical Note
6/21
BD5471MUV
www
.rohm.com
2010.06 - Rev
.A
© 2010 ROHM Co., Ltd.
All rights reserved.
G0
G0
150k
G1
BEEP
DET
24
19
20
21
22
23
7
8
9
10
11
12
REG_OUT
MUTE
EAPD
REG_SD
REG_VDD
REG_GND
SHORT
SHORT
EAPD
3.3VREG
PWM
Gain
Select
H-
Bridge
BEEP
PWM
Gain
Select
H-
Bridge
STOP
UVLO
TSD
SHORT
BIAS
OSC
BEEP
MUTE
EAPD
UVLO
TSD
MUTE
150k
G1
G1
G0
1
2
3
4
5
6
BEEP
DET_C
OUTL+
PVDDL
OUTL-
PGNDL
13
14
15
16
17
18
PVDDR
OUTR-
PGNDR
OUTR+
G1
G0
150k
150k
150k
SHORT
SHORT
SHORT
SHORT
UVLO
TSD
C7
C6
C5
C8
C4
C3
JP4
JP5
C2
JP2
JP3
JP4
JP1
Audio Input
to Speaker
(
B
T
L
)
3.3V
Regulator
to Speaker
(
B
T
L
)
Audio Input
C1
AVDD
AGND
INL+
INL-
INR-
INR+
●
Evaluation board Circuit Diagram
Please connect
to
Input Signal
line.
Please connect
to
GND
line.
Please connect
to
Speaker
.
Please connect
to
Power Supply
(VDD=+2.5
～
5.5V) line.
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P22
BD5471MUV-E2
Mfr. #:
Buy BD5471MUV-E2
Manufacturer:
Description:
Audio Amplifiers IC STEREO SP. AMP CLASS D
Lifecycle:
New from this manufacturer.
Delivery:
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EMS
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