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TPA3128D2DAP データシート(PDF) 11 Page - Texas Instruments

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部品番号 TPA3128D2DAP
部品情報  2x30-W Class-D Amplifier With Low Idle Power Dissipation
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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

TPA3128D2DAP データシート(HTML) 11 Page - Texas Instruments

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SDZ
MUTE
TTL
Buffer
Gain
Control
GAIN
OUTPR_FB
RINP
RINN
Gain
Control
OUTPNR_FB
FAULTZ
SYNC
GAIN/SLV
AM<2:0>
PLIMIT
AVCC
GVDD
LDO
Regulator
LINP
LINN
GND
Input
Sense
PBTL
Select
OUTPL_FB
Gain
Control
OUTNL_FB
AVDD
GVDD
PLIMIT
Reference
Ramp
Generator
Biases and
References
Startup Protection
Logic
SC Detect
DC Detect
Thermal
Detect
UVLO/OVLO
PVCC
GVDD
PVCC
Gate
Drive
OUTNL_
FB
PVCC
GVDD
PVCC
Gate
Drive
PWM
Logic
Modulation and
PBTL Select
OUTPL_FB
GND
OUTPL
BSPL
GND
OUTNL
BSNL
GND
BSNR
OUTPR
GND
OUTNR
OUTNR_
FB
BSPR
OUTPR_FB
PVCC
GVDD
PVCC
Gate
Drive
PVCC
GVDD
PVCC
Gate
Drive
PWM
Logic
Modulation and
PBTL Select
PLIMIT
PLIMIT
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PVCC
PVCC
Copyright © 2016, Texas Instruments Incorporated
Input
Sense
MONO
Select
11
TPA3128D2
www.ti.com
SLOS941A – MAY 2016 – REVISED DECEMBER 2016
Product Folder Links: TPA3128D2
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
7 Detailed Description
7.1 Overview
The TPA3128D2 device is a highly efficient Class D audio amplifier with extreme low idle power dissipation. It
can support as low as 23mA idle loss current using standard LC filter configurations. It is integrated with 90-mΩ
MOSFET that allows output currents up to 7.5 A. The high efficiency allows the amplifier to provide an excellent
audio performance without the requirement for a bulky heat sink.
The device can be configured for either master or slave operation by using the SYNC pin. Configuring using the
SYNC pin helps to prevent audible beats noise.
7.2 Functional Block Diagram


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