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LM48511SQ/NOPB
Audio Amplifiers 3W Mono Class D Audio Pwr Amp
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製造商零件號 # : LM48511SQ/NOPB
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包裝/封裝: WQFN-24
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製造商: Texas Instruments
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產品分類 : Audio Amplifiers
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LM48511SQ/NOPB 數據表
目前的價格方案正在編制中。請聯絡我們的客戶服務團隊獲取最新的價格資訊。感謝您的理解和支援!
詳細說明
The LM48511SQ/NOPB is a top-of-the-line stereo Class D audio amplifier that delivers outstanding performance for portable electronic devices. With a single 5V power supply, this amplifier can provide an impressive 3W of output power per channel into an 8 ohm load. Its high efficiency of up to 88% ensures that battery-powered devices can enjoy extended playtime without compromising on audio quality
主要特徵
- Suitable for professional audio equipment and applications.
- Differential inputs ensure high common-mode rejection ratio.
- Operates on a wide range of supply voltages with stable performance.
- Advanced thermal protection prevents damage from overheating.
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Audio input type | Analog Input | Architecture | Class-D Boosted |
| Speaker channels (max) | Mono | Rating | Catalog |
| Power stage supply (max) (V) | 5.5 | Power stage supply (min) (V) | 3 |
| Load (min) (Ω) | 4 | Output power (W) | 6.7 |
| SNR (dB) | 97 | THD + N at 1 kHz (%) | 0.04 |
| Iq (typ) (mA) | 13.5 | Control interface | Hardware |
| Closed/open loop | Open | Analog supply (min) (V) | 3 |
| Analog supply voltage (max) (V) | 5.5 | PSRR (dB) | 88 |
| Operating temperature range (°C) | -40 to 85 |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is LM48511SQ/NOPB?
The LM48511SQ/NOPB is a high-efficiency, mono, 1.3W, Class D audio power amplifier designed by Texas Instruments. It is ideal for applications requiring audio amplification in portable devices, such as smartphones, tablets, and portable speakers.
How Does LM48511SQ/NOPB Work?
The LM48511SQ/NOPB operates as a mono Class D audio amplifier, converting the input audio signal into a high-efficiency amplified output suitable for driving speakers. It features a low-noise architecture and high power efficiency, making it ideal for battery-powered applications. The amplifier also includes integrated circuitry for short-circuit and thermal protection, ensuring reliability and safe operation.
How Many Pins does LM48511SQ/NOPB have and What are the Functions of the Pinout Configuration?
The LM48511SQ/NOPB is housed in a 20-pin WQFN (Quad Flat No-Lead) package. The pinout configuration includes:
- VDD: Power supply pin.
- GND: Ground pin.
- SDZ: Shutdown and standby control pin.
- FLT: Fault output pin.
- MODE: Mode control pin for selecting filterless or 100 kHz filter mode.
- PWM: Pulse-width modulation input pin.
- OUTP: Positive speaker output pin.
- OUTN: Negative speaker output pin.
What are the Pros and Cons of LM48511SQ/NOPB?
Pros:
- High Efficiency: Class D architecture provides high power efficiency, reducing battery consumption.
- Low Noise: Delivers high-quality audio with low noise and distortion.
- Integrated Protection: Includes built-in short-circuit and thermal protection for enhanced reliability.
- Compact Package: The WQFN package offers space-efficient design for compact applications.
- Flexibility: Supports both filterless and 100 kHz filter mode for versatile application usage.
Cons:
- External Components: May require additional passive components for optimal performance and filtering.
- Complexity: Class D amplifiers may require careful consideration of layout and electromagnetic interference (EMI) management.
Are There Any Equivalents/Alternatives to LM48511SQ/NOPB for Recommendation?
- The TPA2010D1 from Texas Instruments is a similar Class D audio amplifier with comparable features.
- Alternatives to the LM48511SQ/NOPB include the MAX98357A from Maxim Integrated and the BD5467GU from Rohm Semiconductor.
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