首頁 音訊 音訊放大器 喇叭放大器
首頁
音訊
音訊放大器
喇叭放大器

TPA4861

現行

具有關機模式和可選增益的 1-W、單聲道、類比輸入、AB 類音訊放大器

立即訂購
產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的產品不同
TPA6211A1 現行 3.1-W、單聲道、類比輸入 AB 類音訊放大器 Higher output power

TPA4861

現行
產品規格表 立即訂購

產品詳細資料

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 8 Output power (W) 1 THD + N at 1 kHz (%) 0.12 Iq (typ) (mA) 3.5 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 PSRR (dB) 75 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 8 Output power (W) 1 THD + N at 1 kHz (%) 0.12 Iq (typ) (mA) 3.5 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 PSRR (dB) 75 Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 1-W BTL Output (5 V, 0.11 % THD+N)
  • 3.3-V and 5-V Operation
  • No Output Coupling Capacitors Required
  • Shutdown Control (IDD = 0.6 µA)
  • Uncompensated Gains of 2 to 20 (BTL Mode)
  • Surface-Mount Packaging
  • Thermal and Short-Circuit Protection
  • High Supply Ripple Rejection Ratio (56 dB at 1 kHz)
  • LM4861 Drop-In Compatible
  • 1-W BTL Output (5 V, 0.11 % THD+N)
  • 3.3-V and 5-V Operation
  • No Output Coupling Capacitors Required
  • Shutdown Control (IDD = 0.6 µA)
  • Uncompensated Gains of 2 to 20 (BTL Mode)
  • Surface-Mount Packaging
  • Thermal and Short-Circuit Protection
  • High Supply Ripple Rejection Ratio (56 dB at 1 kHz)
  • LM4861 Drop-In Compatible

The TPA4861 is a bridge-tied load (BTL) audio power amplifier capable of delivering 1 W of continuous average power into an 8- load at 0.2% THD+N from a 5-V power supply in voiceband frequencies (f < 5 kHz). A BTL configuration eliminates the need for external coupling capacitors on the output in most applications. Gain is externally configured by means of two resistors and does not require compensation for settings of 2 to 20. Features of the amplifier are a shutdown function for power-sensitive applications as well as internal thermal and short-circuit protection. The TPA4861 works seamlessly with TI’s TPA4860 in stereo applications. The amplifier is available in an 8-pin SOIC surface-mount package that reduces board space and facilitates automated assembly.

The TPA4861 is a bridge-tied load (BTL) audio power amplifier capable of delivering 1 W of continuous average power into an 8- load at 0.2% THD+N from a 5-V power supply in voiceband frequencies (f < 5 kHz). A BTL configuration eliminates the need for external coupling capacitors on the output in most applications. Gain is externally configured by means of two resistors and does not require compensation for settings of 2 to 20. Features of the amplifier are a shutdown function for power-sensitive applications as well as internal thermal and short-circuit protection. The TPA4861 works seamlessly with TI’s TPA4860 in stereo applications. The amplifier is available in an 8-pin SOIC surface-mount package that reduces board space and facilitates automated assembly.
open-in-new 尋找其它 喇叭放大器
下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 2
類型 標題 日期
* Data sheet TPA4861: 1-W Mono Audio Power Amplifier datasheet (Rev. C) 2004年 6月 24日
EVM User's guide TPA4861EVM - User Guide 1999年 1月 6日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
要求
封裝 引腳 下載
SOIC (D) 8 檢視選項
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 資格摘要
  • 進行中可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片