LM4926TLX/NOPB
Product Overview
LM4926TLX/NOPB belongs to the category of audio amplifiers. It is commonly used in portable electronic devices such as smartphones, tablets, and portable media players. The LM4926TLX/NOPB is known for its compact package, high efficiency, and low power consumption. It is typically available in a small outline package (SOP) and comes in quantities suitable for mass production.
Specifications
- Power Supply Range: 2.7V to 5.5V
- Output Power: 1.35W per channel at 3Ω and 5V
- Total Harmonic Distortion + Noise (THD+N): 0.15% at 1kHz, 1.2W, 4Ω
- Shutdown Current: 0.01μA (typical)
- Package: 14-pin WSON or LLP
Detailed Pin Configuration
The LM4926TLX/NOPB features a 14-pin configuration with pins designated for input, output, power supply, and control signals. The pinout includes connections for left and right channel outputs, shutdown control, and gain selection.
Functional Features
- Integrated charge pump for driving capless headphones
- Automatic level control to prevent clipping
- Thermal shutdown and output short-circuit protection
- Low quiescent current in shutdown mode
Advantages and Disadvantages
Advantages
- Small package size suitable for portable devices
- Efficient power consumption
- Integrated protection features for reliability
Disadvantages
- Limited output power compared to larger amplifiers
- Requires external components for full functionality
Working Principles
The LM4926TLX/NOPB operates by amplifying the audio signal from the input source and delivering it to the connected output device, such as headphones or speakers. It utilizes a charge pump to drive capless headphones and incorporates automatic level control to maintain optimal audio quality.
Detailed Application Field Plans
The LM4926TLX/NOPB is well-suited for use in portable electronic devices where space and power efficiency are crucial. Its application extends to smartphones, tablets, portable media players, and other battery-powered consumer electronics.
Detailed and Complete Alternative Models
- LM48901: A similar audio amplifier with higher output power
- LM4863: Dual-channel audio amplifier with different package options
- MAX97220: Low-power audio amplifier with integrated volume control
In conclusion, the LM4926TLX/NOPB offers a compact and efficient solution for audio amplification in portable electronic devices. Its integration of protection features and low power consumption make it an ideal choice for various consumer electronics applications.
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Question: What is the maximum output power of LM4926TLX/NOPB?
Answer: The maximum output power of LM4926TLX/NOPB is 1.1W into 8Ω at 3.3V.Question: What is the typical quiescent current of LM4926TLX/NOPB?
Answer: The typical quiescent current of LM4926TLX/NOPB is 4mA.Question: Can LM4926TLX/NOPB operate from a single supply voltage?
Answer: Yes, LM4926TLX/NOPB can operate from a single supply voltage ranging from 2.7V to 5.5V.Question: Does LM4926TLX/NOPB have built-in short-circuit and thermal protection?
Answer: Yes, LM4926TLX/NOPB features built-in short-circuit and thermal protection.Question: What is the typical shutdown current of LM4926TLX/NOPB?
Answer: The typical shutdown current of LM4926TLX/NOPB is 0.01μA.Question: Can LM4926TLX/NOPB be used in portable audio applications?
Answer: Yes, LM4926TLX/NOPB is suitable for use in portable audio applications due to its low power consumption.Question: What is the typical gain of LM4926TLX/NOPB?
Answer: The typical gain of LM4926TLX/NOPB is 6dB.Question: Is LM4926TLX/NOPB compatible with ceramic capacitors?
Answer: Yes, LM4926TLX/NOPB is compatible with ceramic capacitors for input and output coupling.Question: Can LM4926TLX/NOPB drive headphones directly?
Answer: Yes, LM4926TLX/NOPB can drive headphones directly without the need for an external amplifier.Question: What is the package type of LM4926TLX/NOPB?
Answer: LM4926TLX/NOPB is available in a small 14-pin LLP package for space-constrained applications.