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LM4780TA
LM4780TA Audio Amplifiers
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製造商零件號 # : LM4780TA
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包裝/封裝: TO-220
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製造商: Texas Instruments
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產品分類 : Audio Amplifiers
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LM4780TA 數據表
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詳細說明
Operating on a wide supply voltage range of ±20V to ±84V, the LM4780TA is versatile and adaptable to various audio systems. Its high signal-to-noise ratio of 96dB and low total harmonic distortion of 0.004% at 1kHz ensure that the sound quality is crystal clear and free from unwanted noise
主要特徵
- Rapid switching IC
- High-speed analog-to-digital converter
- Fast response time and wide dynamic range
應用
- Clear and crisp audio output
- High-fidelity sound systems
- Great for live performances
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。
| Product Category ! | Audio Amplifiers | RoHS | N |
| Product | Audio Amplifiers | Class | Class-AB |
| Output Power ! | 120 W | Mounting Style | Through Hole |
| Package / Case | TO-220 | Audio - Load Impedance | 8 Ohms |
| THD plus Noise | 0.03 % | Supply Voltage - Max | 84 V |
| Supply Voltage - Min | 20 V | Minimum Operating Temperature | - 20 C |
| Maximum Operating Temperature ! | + 85 C | Brand | Texas Instruments |
| CMRR - Common Mode Rejection Ratio | 85 dB | Description/Function | Speaker |
| Dual Supply Voltage | +/- 12 V, +/- 15 V, +/- 18 V, +/- 24 V, +/- 28 V | GBP - Gain Bandwidth Product | 8 MHz |
| Height | 15.7 mm | Ib - Input Bias Current | 1 uA |
| Input Type | Differential | Length | 29.21 mm |
| Maximum Dual Supply Voltage | +/- 42 V | Minimum Dual Supply Voltage | +/- 10 V |
| Operating Supply Voltage ! | 18 V | Output Current ! | 11.5 A |
| Output Signal Type | Differential, Single | Output Type | 1-Channel Mono, 2-Channel Stereo |
| Pd - Power Dissipation | 125 W | Product Type ! | Audio Amplifiers |
| PSRR - Power Supply Rejection Ratio | 120 dB | Factory Pack Quantity | 15 |
| Subcategory | Audio ICs | Supply Type | Single, Dual |
| Vos - Input Offset Voltage | 10 mV | Width | 4.5 mm |
| Unit Weight | 0.081130 oz |
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 LM4780TA?
The LM4780TA is a stereo, high-performance audio amplifier integrated circuit designed by Texas Instruments. It is ideal for high-fidelity audio applications such as stereo amplifiers, home theater systems, and professional audio equipment.
How Does LM4780TA Work?
The LM4780TA works by amplifying audio signals with high fidelity and low distortion. It features a high signal-to-noise ratio and low total harmonic distortion, making it suitable for high-quality audio reproduction. The integrated circuit includes protection circuits for overvoltage, undervoltage, overtemperature, and output fault conditions, ensuring reliable operation and robustness.
How Many Pins does LM4780TA have and What are the Functions of the Pinout Configuration?
The LM4780TA is housed in a 27-pin TO-220 package. The pinout configuration includes:
- V+, V-: Power supply pins.
- IN+, IN-: Non-inverting and inverting input pins for each channel.
- BYPASS: Bypass pin for power supply decoupling.
- NFB: Negative feedback pin for each channel.
- OUT, OUT: Output pins for each channel.
- MUTE: Mute control pin.
What are the Pros and Cons of LM4780TA?
Pros:
- High Fidelity: Delivers high-quality audio amplification with low distortion.
- Protection Circuits: Includes comprehensive protection features for reliable and robust operation.
- Thermal Shutdown: Incorporates thermal shutdown protection to prevent overheating.
- Flexible Power Supply: Supports a wide range of power supply voltages for versatile system design.
- Compact Package: The TO-220 package offers a balance of power handling capability and thermal performance.
Cons:
- External Components: May require additional external components such as input capacitors and feedback resistors for optimal performance.
- Heat Dissipation: The TO-220 package may require external heat sinking for high-power applications.
Are There Any Equivalents/Alternatives to LM4780TA for Recommendation?
- An equivalent part to the LM4780TA is the TDA7294 from STMicroelectronics.
- Alternatives to the LM4780TA include the TPA3123D2 from Texas Instruments and the STA540 from STMicroelectronics.
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