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
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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.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPA3111D1 10-W Filter-Free Mono Class-D Audio Power Amplifier With Speaker Guard™ datasheet (Rev. F) | PDF | HTML | 2016. 8. 11 | |
| 애플리케이션 노트 | Using Thermal Calculation Tools for Analog Components (Rev. A) | 2019. 8. 30 | |||
| 애플리케이션 노트 | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019. 8. 26 | |||
| 애플리케이션 노트 | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019. 6. 27 | |||
| 애플리케이션 노트 | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 2013. 5. 1 |
설계 및 개발
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TPA3111D1EVM — TPA3111D1 평가 모듈
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 (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.