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参数资料
| 型号： | TPA3130D2DAP |
| 厂商： | Texas Instruments |
| 文件页数： | 8/35页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUD PWR 15W STER 32HTSSOP |
| 标准包装： | 46 |
| 系列： | SpeakerGuard™ |
| 类型： | D 类 |
| 输出类型： | 2 通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 15W x 2 @ 8 欧姆 |
| 电源电压： | 4.5 V ~ 26 V |
| 特点： | 差分输入，静音，短路和热保护，关机 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 32-HTSSOP |
| 封装/外壳： | 32-TSSOP（0.240"，6.10mm 宽）裸露焊盘 |
| 包装： | 管件 |
| 其它名称： | 296-30432-5 |
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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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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPA3130D2DAPR | 功能描述:音频放大器 15W Filter-Free Cl D Stereo Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TPA3130D2EVM | 功能描述:音频 IC 开发工具 TPA3130D2 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| TPA3131D2 | 制造商:TI 制造商全称: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 |
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