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TPA3131D2 Datasheet(PDF) 21 Page - Texas Instruments

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Part # TPA3131D2
Description  25-W Filter-Free Class-D Stereo Amplifier
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPA3131D2 Datasheet(HTML) 21 Page - Texas Instruments

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TPA3131D2
TPA3132D2
24
23
22
21
20
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18
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1
2
3
4
5
6
7
8
GAIN/SLV
GVDD
INPL
INNL
MUTE
GND
PLIMIT
AM2
BSNR
OUTNR
BSNL
GND
OUTNL
GND
GND
GND
220nF
220nF
220nF
220nF
1nF
220µF
100nF
1nF
220µF
100nF
680nF
680nF
10µH
10µH
10nF
10nF
3.3R
3.3R
1nF
1nF
GND
680nF
680nF
10µH
10µH
10nF
10nF
3.3R
3.3R
1nF
1nF
GND
GND
GND
GND
GND
GND
GND
GND
3.3R
1µF
1µF
1µF
1µF
GND
20k
100k
1µF
100k
OUTPUT FILTER
EMI R-C SNUBBER
10nF
GND
PVCC
FAULTZ
IN_P_RIGHT
IN_N_RIGHT
IN_N_LEFT
IN_P_LEFT
MUTE
PVCC
PVCC
PVCC DECOUPLING
PVCC DECOUPLING
RP2
RP1
TPA3131D2
PVCC
RP1
RP1
TPA3132D2
7.4V
75k3
27k3
19V
56k3
39k3
TPA3131D2, TPA3132D2
www.ti.com
SLOS841B – SEPTEMBER 2013 – REVISED JANUARY 2015
8 Applications and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
This section describes a typical stereo speaker application with differential inputs. The amplifier gain is set to
26 dB and the output PWM is set to 400 kHz.
8.2 Typical Application
Figure 29. Typical Application Schematic
8.2.1 Design Requirements
DESIGN PARAMETERS
EXAMPLE VALUE
Input voltage range PVCC
4.5 V to 26 V
PWM output frequencies
400 kHz, 500 kHz, 600 kHz, 1 MHz or 1.2 MHz
Maximum output power
25 Wx2 (TPA3132D2) or 4 Wx2 (TPA3131D2)
Copyright © 2013–2015, Texas Instruments Incorporated
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