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LM1877N
IC AMP AUDIO PWR 2W STER 14DIP
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LM1877N 數據表
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詳細說明
The UTC LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications. It delivers 20W into a 4Ωor 8Ωload on ±25V supplies. Using an 8Ωload and +30V supplies, over 30W of power may be delivered. The amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limitand thermal shutdown.FEATURES *Up to 30W output power *Avo typically 90 dB *Low distortion: 0.015%,1kHz,20W *Wide power bandwidth: 70kHz *Protection for AC and DC short circuits to ground *Thermal protection with parole circuit *High current capability: 4A *Wide supply range 16V-60V *Internal output protection diodes *94 dB ripple rejectionAPPLICATIONS *High performance audio systems *Bridge amplifiers *Stereo phonographs *Servo amplifiers *Instrument systems
主要特徵
- Up to 30W output power
- Avo typically 90 dB
- Low distortion: 0.015%,1kHz,20W
- Wide power bandwidth: 70kHz
- Protection for AC and DC short circuits to ground
- Thermal protection with parole circuit
- High current capability: 4A
- Wide supply range 16V-60V
- Internal output protection diodes
- 94 dB ripple rejection
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。
| Manufacturer | Panduit | Product Category ! | Audio Amplifiers |
常見問題解答
What is LM1877N?
The LM1877N is a dual audio power amplifier integrated circuit (IC) designed by Texas Instruments. It is specifically tailored for use in stereo amplifiers, audio equipment, and consumer electronics where high-quality audio amplification is required.
How Does LM1877N Work?
The LM1877N functions as a dual audio power amplifier, amplifying stereo audio signals with high fidelity and efficiency. It utilizes a split supply operation to drive speakers with minimal distortion and noise. The IC features built-in thermal shutdown protection and output over-voltage protection for safe operation.
How Many Pins does LM1877N have and What are the Functions of the Pinout Configuration?
The LM1877N is housed in a 15-pin multiwatt package. The pinout configuration includes:
- VCC: Positive supply voltage pin.
- VEE: Negative supply voltage pin.
- VREF: Reference voltage pin.
- IN1-, IN1+: Input pins for channel 1.
- OUT1, OUT2: Output pins for channel 1 and 2, respectively.
- IN2-, IN2+: Input pins for channel 2.
- VS: Ground pin.
What are the Pros and Cons of LM1877N?
Pros:
- Stereo Amplification: Designed for stereo audio applications, providing dual-channel amplification.
- High Fidelity: Delivers high-quality audio amplification with low distortion.
- Split Supply Operation: Allows for driving speakers with a wide dynamic range.
- Protection Features: Includes thermal shutdown and over-voltage protection for safe operation.
- Multiwatt Package: Offers a convenient package for easy mounting and connection.
Cons:
- Power Dissipation: May generate heat during operation, requiring thermal considerations.
- External Components: May need additional external components for specific application requirements.
- Size: The 15-pin package may require more PCB space compared to smaller IC packages.
Are There Any Equivalents/Alternatives to LM1877N for Recommendation?
- The TDA2050 from STMicroelectronics is a comparable dual audio amplifier IC.
- Alternatives to the LM1877N include the LM1875 also from Texas Instruments and the NJM2073 from New Japan Radio.
