LM1877N-9

The LM1877N-9 is a compact and reliable audio amplifier suitable for a range of applications
3,804 有效庫存

LM1877N-9

有效庫存3,804

The LM1877N-9 is a compact and reliable audio amplifier suitable for a range of applications

  • 製造商零件號 # : LM1877N-9

  • 包裝/封裝: DIP-14

  • 零件狀態 : Discontinued

  • 製造商: Texas Instruments

  • 產品分類 : Audio Amplifiers

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LM1877N-9 數據表
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詳細說明

Operating in Class AB mode, this amplifier offers the efficiency of Class B amplifiers combined with the low distortion of Class A amplifiers. Its compact 9-pin package makes it easy to integrate into a wide range of electronic devices, and it requires minimal external components for operation, adding to its convenience and versatility

主要特徵

  • Up to 30W output powerAvo typically 90 dBLow distortion: 0.015%,1kHz,20WWide power bandwidth: 70kHzProtection for AC and DC short circuits to groundThermal protection with parole circuitHigh current capability: 4AWide supply range 16V-60VInternal output protection diodes94 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。

Product Category ! Audio Amplifiers Product Audio Amplifiers
Class Class-AB Output Power ! 1.3 W
Package / Case MDIP Audio - Load Impedance 8 Ohms
THD plus Noise 0.055 % Supply Voltage - Max 24 V
Supply Voltage - Min 6 V Minimum Operating Temperature 0 C
Maximum Operating Temperature ! + 70 C Brand Texas Instruments
Description/Function Speaker Height 3.3 mm
Ib - Input Bias Current 50 nA Input Type Single
Length 19.05 mm Operating Supply Current 25 mA
Operating Supply Voltage ! 9 V, 12 V, 15 V, 18 V Output Signal Type Single
Output Type 2-Channel Stereo Product Type ! Audio Amplifiers
PSRR - Power Supply Rejection Ratio 65 dB Subcategory Audio ICs
Supply Current - Max 50 mA Supply Type Single
Vos - Input Offset Voltage 15 mV Width 6.35 mm

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。

初步規格 LM1877N-9 PDF 下載

常見問題解答

What is LM1877N-9?

The LM1877N-9 is a dual audio power amplifier integrated circuit designed by Texas Instruments. It is specifically designed for audio amplifier applications, providing two independent amplifiers in a single package for stereo sound systems, TVs, and other audio equipment.

How Does LM1877N-9 Work?

The LM1877N-9 functions as a dual audio power amplifier, amplifying audio signals with high fidelity and efficiency. It features built-in thermal shutdown and short-circuit protection circuits to ensure reliable operation under various conditions. The amplifier is capable of driving low impedance loads, making it suitable for powering speakers directly.

How Many Pins does LM1877N-9 have and What are the Functions of the Pinout Configuration?

The LM1877N-9 is housed in a 14-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

  • VS: Supply voltage pin.
  • GND: Ground pin.
  • IN+ and IN-: Non-inverting and inverting input pins for each amplifier.
  • OUT A and OUT B: Output pins for each amplifier.
  • BS: Bootstrap pin for each amplifier.
  • Vs: Standby voltage pin.

What are the Pros and Cons of LM1877N-9?

Pros:

  • Dual Amplifiers: Contains two independent amplifiers in a single package for stereo applications.
  • Thermal Shutdown Protection: Includes built-in protection against overheating.
  • Short-Circuit Protection: Offers protection against short circuits to prevent damage.
  • Low Impedance Drive Capability: Capable of driving low impedance loads to directly power speakers.
  • Wide Supply Voltage Range: Operates over a wide range of supply voltages for flexibility in different systems.

Cons:

  • Limited Output Power: May have limited output power compared to higher wattage amplifiers.
  • External Components Required: Some applications may require additional external components for optimal performance.

Are There Any Equivalents/Alternatives to LM1877N-9 for Recommendation?

  • The TDA7265 from STMicroelectronics is a dual audio power amplifier that can be considered an alternative to the LM1877N-9.
  • Alternatives to the LM1877N-9 include the TDA2030 from STMicroelectronics and the LM386 from Texas Instruments.

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