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參數資料
| 型號： | TPA3130D2DAPR |
| 廠商： | Texas Instruments |
| 文件頁數： | 8/35頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUD PWR 15W STER 32HTSSOP |
| 標準包裝： | 2,000 |
| 系列： | SpeakerGuard™ |
| 類型： | D 類 |
| 輸出類型： | 2 通道（立體聲） |
| 在某負載時最大輸出功率 x 通道數量： | 15W x 2 @ 8 歐姆 |
| 電源電壓： | 4.5 V ~ 26 V |
| 特點： | 差分輸入，靜音，短路和熱保護，關機 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 32-HTSSOP |
| 封裝/外殼： | 32-TSSOP（0.240"，6.10mm 寬）裸露焊盤 |
| 包裝： | 帶卷 (TR) |
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Input
Signal
Ci
IN
Zi
Zf
SLOS708C – APRIL 2012 – REVISED NOVEMBER 2013
The input capacitors used should be a type with low leakage, like quality electrolytic, tantalum or ceramic. If a
polarized type is used the positive connection should face the input pins which are biased to 3 Vdc.
START-UP/SHUTDOWN OPERATION
The TPA31xxD2 family employs a shutdown mode of operation designed to reduce supply current (Icc) to the
absolute minimum level during periods of nonuse for power conservation. The SDZ input terminal should be held
high (see specification table for trip point) during normal operation when the amplifier is in use. Pulling SDZ low
will put the outputs to mute and the amplifier to enter a low-current state. It is not recommended to leave SDZ
unconnected, because amplifier operation would be unpredictable.
For the best power-off pop performance, place the amplifier in the shutdown mode prior to removing the power
supply. The gain setting is selected at the end of the start-up cycle. At the end of the start-up cycle, the gain is
selected and cannot be changed until the next power-up.
PLIMIT OPERATION
The TPA31xxD2 family has a built-in voltage limiter that can be used to limit the output voltage level below the
supply rail, the amplifier simply operates as if it was powered by a lower supply voltage, and thereby limits the
output power. Add a resistor divider from GVDD to ground to set the voltage at the PLIMIT pin. An external
reference may also be used if tighter tolerance is required. Add a 1 F capacitor from pin PLIMIT to ground to
ensure stability. It is recommended to connect PLIMIT to GVDD when using 1SPW-modulation mode.
Figure 28. POWER LIMIT Example
The PLIMIT circuit sets a limit on the output peak-to-peak voltage. The limiting is done by limiting the duty cycle
to a fixed maximum value. This limit can be thought of as a "virtual" voltage rail which is lower than the supply
connected to PVCC. This "virtual" rail is approximately 4 times the voltage at the PLIMIT pin. This output voltage
can be used to calculate the maximum output power for a given maximum input voltage and speaker impedance.
16
Copyright 2012–2013, Texas Instruments Incorporated
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相關代理商/技術參數 |
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|---|---|
| TPA3130D2EVM | 功能描述:音頻 IC 開發(fā)工具 TPA3130D2 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TPA3131D2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4W, 25W Filter-Free Class-D Stereo Amplifier with AM Avoidance |
| TPA3131D2EVM | 制造商:Texas Instruments 功能描述:TPA3131D2EVM - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:EVAL BOARD FOR TPA3131D2 制造商:Texas Instruments 功能描述:EVAL BOARD, TPA3131D2 AUDIO AMP, Silicon Manufacturer:Texas Instruments, Silicon Core Number:TPA3131D2, Kit Application Type:Amplifier, Application Sub Type:Audio Power Amplifier - Class D, Kit Contents:Board, Guide 制造商:Texas Instruments 功能描述:, Silicon Manufacturer:Texas Instruments, Silicon Core Number:TPA3131D2, Kit App |
| TPA3131D2RHBR | 制造商:Texas Instruments 功能描述:TPA3118 IN RHB PACKAGE |
| TPA3131D2RHBT | 制造商:Texas Instruments 功能描述:TPA3118 IN RHB PACKAGE - Tape and Reel 制造商:Texas Instruments 功能描述:TPA3118 IN RHB PACKAGE - Cut TR (SOS) 制造商:Texas Instruments 功能描述:IC AMP AUD PWR 7W STER 32VQFN 制造商:Texas Instruments 功能描述:IC, STEREO AMP, CLASS D, 4W, QFN-32 制造商:Texas Instruments 功能描述:AMPLIFIER, AUDIO, CLASS D, 7.3W, VQFN-32, Amplifier Class:D, No. of Channels:2, Output Power:7.3W, Supply Voltage Range:4.5V to 26V, Amplifier Case Style:VQFN, No. of Pins:32, Load Impedance:4ohm, Operating Temperature Min:-40C |
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