BD5471MUV ROHM Co. Ltd., BD5471MUV Datasheet - Page 3

• Manufacturer Part Number: BD5471MUV
• Description: Stereo Class-d Speaker Amplifier For Notebook Pc
• Manufacturer: ROHM Co. Ltd.

■Measurement circuit (Fig. 1)
■Package Outlines (Fig. 2)
■Pin Assignment <top view> (Fig. 4)
1
2
3
4
5
6
OUTL+
PVDDL
PGNDL
OUTL-
DET_C
BEEP
VQFN024V4040(Plastic Mold)
D5471
7
24
～
～
～
～
+
+
+
+
8
23
22
9
0.1μF
0.1μF
0.1μF
0.1μF
Lot No.
C7
C8
C4
C1
C5
A
A
A
A
A
A
REG_SD
10
DET_C
21
MUTE
BEEP
EAPD
INR+
INR-
INL-
INL+
G0
G1
20
11
8
18
17
23
24
1
2
7
20
19
9
2.2μF
A
19
12
Gain
Select
Gain
Select
REG_GND
OUTR+
PGNDR
PVDDR
OUTR-
G0
G1
C2
REG_VDD
(unit : mm)
10μF
REG_VDD
12
REG
18
17
16
15
14
13
10
detect
BEEP
Bias
AGND
AVDD
C6
21
22
OSC
PWM
PWM
Short
Protection
REV. A
4
5
PVDDL
PGNDL
■Block Diagram (Fig. 3)
Short
Protection
Short
Protection
TSD
UVLO
H-
H-
Bridge
Bridge
14
15
REG_SD
DET_C
PGNDR
MUTE
PVDDR
BEEP
EAPD
INR+
INR-
INL+
INL-
G0
G1
16
11
13
3
6
18
17
1
2
8
7
20
19
9
23
24
OUTL-
OUTR -
OUTR+
REG_OUT
OUTL+
C3
2.2μF
Gain
Select
Gain
Select
REG_GND
REG_VDD
22μH
22μH
22μH
22μH
REG_VDD
12
REG
1μF
1μF
1μF
1μF
10
detect
BEEP
Bias
8Ω
8Ω
V
AVDD
AGND
21
22
V
V
OSC
PWM
PWM
Short
Protection
PVDDL
PGNDL
4
5
Short
Protection
Short
Protection
TSD
UVLO
H-
H-
Bridge
Bridge
PGNDR
PVDDR
14
15
16
11
13
3
6
OUTR -
REG_OUT
OUTL+
OUTL-
OUTR+
3/4