User Manual

The TPA005D02 Audio Power Amplifier Evaluation Module
3-4
Details
Figure 3–3. TPA005D02 Class D EVM Schematic Diagram
5
1 µFC7
16
8
41
10
35
34
15 µH
0.22 µF
V2P5
SHUTDOWN
MUTE
AGND
LINP
LINN
LCOMP
AGND
RINP
RINN
RCOMP
NC
NC
NC
COSC
AGND
AGND
AGND
VCP
LSBIAS
CP4
CP3
CP2
CP1
LPV
DD
LPV
DD
V
DD
PV
DD
RPV
DD
RPV
DD
PV
DD
FAULT0
FAULT1
LOUTP
LOUTP
PGND
PGND
LOUTN
LOUTN
ROUTP
ROUTP
PGND
PGND
ROUTN
ROUTN
NC
NC
PGND
PowerPAD
1
2
3
4
6
7
44
45
43
17
19
30
48
47
46
20
22
28
26
23
24
25
29
9
21
40
33
32
42
11
12
13
14
15
39
38
37
36
18
31
27
C26
C24
0.22 µF
C22
1 µF
L2
15 µH
L1
15
µH
L3
15
µH
L4
0.22 µF
C25
C23
1 µF
D3
D2
R7
R6
1 KΩ
1 KΩ
LOUT+
LOUT–
ROUT+
ROUT–
V
DD
C13
C9
1 µF
1 µ
F
C17
1 µF
10
µ
F
1 µ
F
1 µ
F
C11
C15
C16
C12 C14
C10
V
DD
220
µ
F
10
µ
F
C18
1 µF
C19
1 µF
C5
470 pF
C21
0.047 µF
0.047 µF
C20
1 µF
1 µF
1 µF
C6
C8
C3
C2
470 pF
470 pF
RIN–
RIN+
LIN–
LIN+
GND
MUTE
GND
V
DD
V
DD
R1
20 KΩ
R2
1 KΩ
C1
1 µF
V
DD
D1
3.9 V
R3
20 KΩ
S1
R4
100 KΩ
Q1
2N3906
U1
TPA005D02
R5
100 KΩ
S2
C4
0.22 µF
C27
220
µ
F
+
+
Shutdown
V
DD
Mute
3.2.1 TPA005D02 Class D Stereo Audio Amplifier IC
The TPA005D02 Class D Stereo Audio Power Amplifier integrated circuit
converts low-level audio into pulse-width-modulated (PWM) signals, which
result in an audio output with a 24-dB increase in amplitude. Designed
primarily for BTL operation at a supply voltage of 5 V, each channel of the
TPA005D02 amplifier IC is capable of 2 W of continuous output power into a
4-Ω load at 0.8% total harmonic distortion + noise (THD+N) over a frequency
range of 20Hz – 20kHz.
The device is provided in a very small 48-pin thermally-enhanced PowerPAD
TSSOP surface-mount package (DCA) and consumes only 400 µA in
shutdown mode, making the TPA005D02 an excellent choice for portable
battery-powered applications.