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TPA3144D2PWPR データシート(PDF) 10 Page - Texas Instruments

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部品番号 TPA3144D2PWPR
部品情報  6-W Inductor Free Stereo (BTL) Class-D Audio Amplifier
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

TPA3144D2PWPR データシート(HTML) 10 Page - Texas Instruments

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Total Output Power (W)
0
1
2
3
4
5
6
7
8
9
10
11
12
0
10
20
30
40
50
60
70
80
90
100
D015
PVcc = 6 V
PVcc = 13 V
PVcc = 14.4 V
Output Power (W)
0.01
0.1
1
7
0.01
0.1
1
10
D001
20 Hz
1 kHz
Supply Voltage (V)
4
5
6
7
8
9
10
11
12
13
14
15
0
3
6
9
12
15
D001
TPA3144D2
SLOS907B – APRIL 2015 – REVISED JULY 2015
www.ti.com
Typical Characteristics (continued)
All Measurements taken at 20dB closed loop gain, 1-kHz audio, TA = 25°C unless otherwise noted. Measurements were
made with AES17 filter using the TPA3144D2 EVM, which is available at ti.com.
AVCC=PVCC = 13 V, Load = 4
Ω + 33 µH, 20 Hz, 1 kHz, 6.7 kHz
AVCC=PVCC = 4.5 V to 14.4 V, Load = 4
Ω + 33 µH, AGL + PLIM
disable (LIMRATE = GND, LIMTHRES = GVDD)
Figure 13. Total Harmonic Distortion + Noise vs Output
Figure 14. Output Power vs Supply Voltage, 1SPW (PBTL)
Power, 1SPW (PBTL)
AVCC=PVCC = 6 V, 13 V, 14.4 V, Load = 4
Ω + 33 µH, AGL + PLIM disable (LIMRATE = GND, LIMTHRES =
GVDD)
Figure 15. Efficiency vs Output Power, 1SPW (PBTL)
8 Parameter Measurement Information
All parameters are measured according to the conditions described in the Specifications and Typical
Characteristics.
Most audio analyzers will not give correct readings of Class-D amplifiers’ performance due to their sensitivity to
out of band noise present at the amplifier output. An AES-17 pre analyzer filter is recommended to use for Class-
D amplifier measurements. In absence of such filter, a 30-kHz low-pass filter (10
Ω + 47 nF) can be used to
reduce the out of band noise remaining on the amplifier outputs.
10
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Product Folder Links: TPA3144D2


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