TPA3111D1
- 10-W into an 8-Ω Load at 10% THD+N From a 12-V Supply
- 7-W into an 4-Ω Load at 10% THD+N From a 8-V Supply
- 94% Efficient Class-D Operation into 8-Ω Load Eliminates Need for Heat Sinks
- Wide Supply Voltage Range Allows Operation from 8 to 26 V
- Filter-Free Operation
- SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter Plus DC Protection
- Flow-Through Pinout Facilitates Easy Board Layout
- Robust Pin-to-Pin Short-Circuit Protection and Thermal Protection With Auto-Recovery Option
- Excellent THD+N and Pop-Free Performance
- Four Selectable, Fixed Gain Settings
- Differential Inputs
- APPLICATIONS
- Televisions
- Monitors and Laptops
- Consumer Audio Equipment
All other trademarks are the property of their respective owners
The TPA3111D1 device is a 10-W, efficient, Class-D audio power amplifier for driving a bridge tied speaker. Advanced EMI suppression technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard speaker protection system includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter lets the user to set a virtual voltage rail lower than the chip supply to limit the current through the speaker. The DC Detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs.
The TPA3111D1 can drive a mono speaker as low as 4 Ω. The high efficiency of the TPA3111D1, >90%, eliminates the requirement for an external heat sink when playing music.
The outputs are fully protected against shorts to GND, VCC, and output-to-output. The short-circuit protection and thermal protection includes an auto-recovery feature.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPA3111D1 10-W Filter-Free Mono Class-D Audio Power Amplifier With Speaker Guard™ datasheet (Rev. F) | PDF | HTML | 2016年 8月 11日 |
| Application note | Using Thermal Calculation Tools for Analog Components (Rev. A) | 2019年 8月 30日 | ||
| Application note | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019年 8月 26日 | ||
| Application note | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019年 6月 27日 | ||
| Application note | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 2013年 5月 1日 | ||
| EVM User's guide | TPA3111D1EVM Audio Amplifier Evaluation Board User's Guide (Rev. A) | 2010年 7月 7日 |
設計與開發
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TPA3111D1EVM — TPA3111D1 評估模組
The TPA3111D1 evaluation module consists of a single 10-W, Class-D, mono audio power amplifier complete with a small number of external components mounted on a circuit board that can be used to directly drive a speaker with an external analog audio source as the input. The EVM’s default output (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
訂購與品質
- 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
- 認證摘要
- 進行中持續性的可靠性監測
- 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。