The LM4855ITLX/NOPB is an innovative, highly integrated audio amplifier solution from Texas Instruments, designed to meet the demanding requirements of portable applications. This versatile device combines a stereo headphone amplifier with a mono speaker amplifier, all in a compact, lead-free micro SMD package. It is ideal for adding high-quality audio output to a wide range of products, from smartphones and tablets to portable gaming devices and media players.
Key Features
- Integrated Audio Amplification: With both stereo headphone and mono speaker amplifiers integrated into a single chip, the LM4855ITLX/NOPB simplifies design and saves space on the PCB.
- Power Efficiency: The device operates on a 2.2V to 5.5V supply voltage range, making it suitable for battery-powered applications. It also features a low-power consumption mode to extend battery life.
- Advanced Pop & Click Suppression: The LM4855ITLX/NOPB includes built-in pop and click suppression circuits that reduce noise which can occur during power or device transitions, ensuring a clear audio experience.
- Thermal Shutdown Protection: To safeguard the device and the system, it includes thermal shutdown protection that prevents damage from overheating.
Applications
The LM4855ITLX/NOPB's small footprint and power efficiency make it an excellent choice for a variety of portable audio applications. It is commonly used in:
- Mobile Phones
- Portable Media Players
- Handheld Gaming Devices
- Notebook and Tablet Computers
Product Specifications
| Parameter |
Value |
| Output Power |
1.1W (Mono), 105mW (Stereo) |
| Load Impedance |
4Ω (Mono), 16Ω (Stereo) |
| Supply Voltage |
2.2V to 5.5V |
| Package |
Micro SMD |
| Lead-Free Status |
Lead-Free (RoHS Compliant) |
With its combination of audio performance, power efficiency, and space-saving design, the LM4855ITLX/NOPB from Texas Instruments is an ideal solution for designers looking to enhance the audio capabilities of their portable electronic devices.