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參數資料
| 型號： | TA2020-020 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 運動控制電子 |
| 英文描述： | Stereo 20W (4з) Class-T Digital Audio Amplifier using Digital Power Processing Technology |
| 中文描述： | 立體聲20瓦（4з）類- T數字音頻放大器采用數字電源處理技術 |
| 文件頁數： | 8/13頁 |
| 文件大?。?/td> | 293K |
| 代理商： | TA2020-020 |
T E C H N I C A L I N F O R M A T I O N
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TA2020-020, Rev. 4.0, 09.00
Application Information
Circuit Board Layout
The TA2020-020 is a power (high current) amplifier that operates at relatively high switching
frequencies. The outputs of the amplifier switch between the supply voltage and ground at high
speeds while driving high currents. This high-frequency digital signal is passed through an LC low-
pass filter to recover the amplified audio signal. Since the amplifier must drive the inductive LC
output filter and speaker loads, the amplifier outputs can be pulled above the supply voltage and
below ground by the energy in the output inductance. To avoid subjecting the TA2020-020 to
potentially damaging voltage stress, it is critical to have a good printed circuit board layout. It is
recommended that Tripath’s layout and application circuit be used for all applications and only be
deviated from after careful analysis of the effects of any changes.
The figures below are the Tripath TA2020-020 evaluation board. Some of the most critical
components on the board are the power supply decoupling capacitors. C674 and C451 must be
placed right next to pins 22 and 19 as shown. C673 and C451B must be placed right next to pins
25 and 28 as shown. These power supply decoupling capacitors from the output stage not only
help reject power supply noise, but they also absorb voltage spikes on the VDD pins caused by
overshoots of the outputs of the amplifiers. Voltage overshoots can also be caused by output
inductor flyback during high current switching events such as shorted outputs or driving low
impedances at high levels. If these capacitors are not close enough to the pins, electrical
overstress to the part can occur, possibly resulting in permanent damage to the TA2020-020.
B
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相關代理商/技術參數 |
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| TA202016 | 制造商:POWEREX 制造商全稱:Powerex Power Semiconductors 功能描述:Phase Control SCR (1600-1800 Amperes Avg 100-2200 Volts) |
| TA20201603DH | 功能描述:SCR PHASE CTRL 2000V 1600A RoHS:是 類別:半導體模塊 >> SCR 系列:- 其它有關文件:SCR Module Selection Guide 標準包裝:10 系列:- 結構:串聯(lián) - SCR/二極管 SCR 數目，二極管:1 SCR，1 個二極管 電壓 - 斷路:1600V 電流 - 柵極觸發(fā)電流 (Igt)（最大）:150mA 電流 - 導通狀態(tài) (It (AV))（最大）:95A 電流 - 導通狀態(tài) (It (RMS))（最大）:210A 電流 - 非重復電涌，50、60Hz (Itsm):1785A，1870A 電流 - 維持(Ih):250mA 安裝類型:底座安裝 封裝/外殼:ADD-A-PAK（3 + 2） 包裝:散裝 其它名稱:*IRKL92/16AIRKL92/16IRKL92/16-ND |
| TA202018 | 制造商:POWEREX 制造商全稱:Powerex Power Semiconductors 功能描述:Phase Control SCR (1600-1800 Amperes Avg 100-2200 Volts) |
| TA20201803DH | 制造商:n/a 功能描述:Power Semiconductor |
| TA2021-100 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:STEREO 100W (4-ohm) CLASS-T DIGITAL AUDIO AMPLIFIER DRIVER USING DPP-TM TECHNOLOGY |
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