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LM4950TS
+BOMIC AMP AB MONO/STER 7.5W TO263-9
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ManufacturerTexas Instruments
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Mfr. Part #LM4950TS
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Package TO-263 (KTW)-9
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In Stock3537
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Specifications
| Attribute | Value |
| Package | Bulk,Tube |
| Series | Boomer® |
| ProductStatus | Active |
| Type | Class AB |
| OutputType | 1-Channel (Mono) or 2-Channel (Stereo) |
| MaxOutputPowerxChannels@Load | 7.5W x 1 @ 8Ohm; 3.1W x 2 @ 4Ohm |
| Voltage-Supply | 9.6V ~ 16V |
| Features | Depop, Short-Circuit and Thermal Protection, Shutdown |
| MountingType | Surface Mount |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| SupplierDevicePackage | DDPAK/TO-263-9 |
Overview
Description
Key features of the LM4950TS include its ability to deliver up to 3 watts per channel (stereo) into an 8-ohm load, making it suitable for small to medium-sized audio applications. It operates efficiently with a range of supply voltages, commonly around 5V, optimizing it for battery-powered devices. The chip is equipped with thermal and short-circuit protection, ensuring reliable operation and longevity. Additionally, it offers low quiescent current drain, minimizing power consumption when not actively amplifying sound.
The LM4950TS also supports bridge-tied load (BTL) configurations, allowing greater power output for mono applications. Its compact package and minimal external component requirement make it a versatile and space-efficient choice for modern audio design needs.
Equivalent
1. TDA7294 by STMicroelectronics.
2. LM3886 by Texas Instruments.
3. TDA2030 by STMicroelectronics.
4. TDA2050 by STMicroelectronics.
These chips are also designed for audio amplification in various applications. However, always verify specifications and pin compatibility when considering replacements.
Features
1. Output Power: It offers a high output power, typically around 7W per channel into a 4Ω load, making it suitable for driving speakers directly.
2. Bridge-Tied Load (BTL) Capability: This configuration allows for higher power output without the need for an output coupling capacitor or bootstrap capacitors.
3. Efficiency: The amplifier is designed for high efficiency, minimizing power loss and heat generation.
4. Low Distortion: With low Total Harmonic Distortion (THD), the LM4950TS ensures clear sound reproduction.
5. Wide Supply Range: It operates over a wide voltage range, enhancing its versatility in different circuit designs.
6. Thermal Protection: Built-in thermal shutdown protects the device from overheating.
7. Pop-and-Click Suppression: It includes features to minimize popping and clicking noises during power-up or shutdown.
8. Small Package: Available in a surface-mount package, saving space on printed circuit boards.
These features make the LM4950TS suitable for a range of audio applications, including portable devices and home audio systems.
Pinout
The primary function of the LM4950TS is to amplify low-level audio signals to drive speakers with a higher power output. It typically operates in a bridge-tied load (BTL) configuration to maximize output power and efficiency in driving a single speaker. Additionally, it features built-in protection mechanisms such as thermal shutdown and short-circuit protection to enhance reliability and safety during operation.
The pin configuration includes essential connections for power supply, input signals, and outputs, as well as pins for ground and other necessary functions to ensure efficient operation and sound quality. For specific pin functions and a detailed pinout, it is recommended to consult the official datasheet provided by the manufacturer (Texas Instruments).
Manufacturer
Application
1. Consumer Electronics: Used in devices like televisions, radios, and portable speakers to enhance audio output.
2. Personal Computers: Provides sound amplification in desktop and laptop computers.
3. Home Audio Systems: Integrated into stereo systems for improved sound quality.
4. Automotive Audio: Used in car audio systems to drive speaker outputs efficiently.
5. Portable Devices: Employed in gadgets requiring compact yet powerful audio amplification, such as MP3 players and handheld gaming devices.
Its efficiency, low distortion, and high output power make the LM4950TS suitable for any application requiring robust audio performance.