參數(shù)資料
型號(hào)： TAS5601DCA
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 音頻／視頻放大
英文描述： 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO56
封裝： GREEN, PLASTIC, HTSSOP-56
文件頁(yè)數(shù)： 8/26頁(yè)
文件大?。?/td> 2698K
代理商： TAS5601DCA
SHORT-CIRCUIT PROTECTION
THERMAL PROTECTION
PRINTED-CIRCUIT BOARD (PCB) LAYOUT
BASIC MEASUREMENT SYSTEM
SLAS585A – FEBRUARY 2008 – REVISED SEPTEMBER 2008....................................................................................................................................... www.ti.com
The TAS5601 has short-circuit protection circuitry on the outputs that prevents damage to the device during
output-to-output shorts and output-to-GND shorts after the filter and output capacitor (at the speaker terminal.)
Directly at the device terminals, the protection circuitry prevents damage to device during output-to-output,
output-to-ground, and output-to-supply. When a short circuit is detected on the outputs, the part immediately
disables the output drive. This is latched fault and is cleared by cycling the RESET pin. Normal operation is
restored when the fault is removed.
The FAULT will transition low when a short is detected. The FAULT pin will be cleared after RESET is cycled.
Thermal protection on the TAS5601 prevents damage to the device when the internal die temperature exceeds
150°C. There is a ±15°C tolerance on this trip point from device to device. Once the die temperature exceeds the
thermal set point, the device enters into the shutdown state and the outputs are disabled. This is not a latched
fault. The thermal fault is cleared once the temperature of the die is reduced by 20°C. The device begins normal
operation at this point with no external system interaction.
Thermal protection fault is NOT reported on the FAULT terminal.
A THERM_WARN terminal can be used to monitor when the internal device temperature reaches 125°C. The
terminal will transition low at this point and transition back high after the device cools approximately 20°C. It is
not necessary to cycle RESET to clear this warning flag.
Because the TAS5601 is a class-D amplifier that switches at a high frequency, the layout of the printed-circuit
board (PCB) should be optimized according to the following guidelines for the best possible performance.
Decoupling capacitors—The high-frequency 0.1-F decoupling capacitors should be placed as close to the
PVCC and AVCC terminals as possible. The BYPASS capacitor and VCLAMP_XX capacitors should also be
placed as close to the device as possible. Large (220-
F or greater) bulk power-supply decoupling capacitors
should be placed near the TAS5601 on the PVCCx terminals. For single-ended operation, a 220
F capacitor
should be placed on each PVCC pin. For Bridge-tied operation, a single 220
F, capacitor can be shared
between A and B or C and D.
Grounding—The AVCC decoupling capacitor and BYPASS capacitor should each be grounded to analog
ground (AGND). The PVCCx decoupling capacitors and VCLAMP_xx capacitors should each be grounded to
power ground (PGND). Analog ground and power ground should be connected at the thermal pad, which
should be used as a central ground connection or star ground for the TAS5601.
Output filter—The reconstruction LC filter should be placed as close to the output terminals as possible for the
best EMI performance. The capacitors should be grounded to power ground.
Thermal pad—The thermal pad must be soldered to the PCB for proper thermal performance and optimal
reliability. The dimensions of the thermal pad and thermal land are described in the mechanical section at the
back of the data sheet. See TI Technical Briefs SLMA002 and SLOA120 for more information about using the
thermal pad. For recommended PCB footprints, see figures at the end of this data sheet.
For an example layout, see the TAS5601 Evaluation Module (TAS5601EVM) User Manual, (SLOU189). Both the
EVM user manual and the thermal pad application note are available on the TI Web site at http://www.ti.com.
This section focuses on methods that use the basic equipment listed below:
Audio analyzer or spectrum analyzer
Digital multimeter (DMM)
Oscilloscope
Twisted-pair wires
Signal generator
Power resistor(s)
Linear regulated power supply
Filter components
16
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TAS5601
相關(guān)PDF資料
PDF描述
TAS5611DKD 125 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44
TAS5611PHD 125 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
TAS5611PHDR 125 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
TAS5612DKD 125 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44
TAS5612PHD 125 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TAS5601DCAG4 功能描述:音頻放大器 20-W Stereo Dig Amp Pwr Stage RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TAS5601DCAR 功能描述:音頻放大器 20W St Dig Amp Pwr Stage RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TAS5601DCARG4 功能描述:音頻放大器 20-W Stereo Dig Amp Pwr Stage RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TAS5601EVM4 功能描述:音頻 IC 開(kāi)發(fā)工具 TAS5601EVM4 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類(lèi)型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
TAS5602 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:20W STEREO DIGITAL AMPLIFIER POWER STAGE
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