STMicroelectronics TDA7851L

The STMicroelectronics TDA7851L is a high-performance power amplifier IC designed for car audio applications. It is a class-AB four-channel bridge-tied load (BTL) amplifier, specifically optimized for automotive audio systems. This IC offers excellent audio performance with low distortion and high output power. Functions: - Four-channel BTL amplifier: The TDA7851L can drive up to four speakers independently or bridge two channels for a subwoofer. - High output power: It can deliver up to 50W per channel in a four-ohm load or 28W per channel in a two-ohm load. - Low distortion: The IC provides low total harmonic distortion (THD) and noise for high-quality sound reproduction. - Flexible operation: It features a wide supply voltage range (8V to 18V) and supports various input configurations, including single-ended and differential inputs. Applications: The TDA7851L is commonly used in car audio systems, offering high power output, low distortion, and flexibility in speaker configurations. Some specific applications include: - In-dash car stereos - Amplifier modules for car audio upgrades - Speaker systems for motorcycles, boats, and recreational vehicles (RVs) Alternative parts: - TDA7850: Similar to the TDA7851L but with a slightly lower power rating (up to 44W per channel). - TDA8560Q: A quad bridge amplifier with a power output of up to 45W per channel. - TDA7377: A dual bridge amplifier IC that can deliver up to 20W per channel. Embedded modules: The TDA7851L can be used as a component in various embedded audio systems and modules, including: - OEM car audio systems - Aftermarket car audio amplifiers - Audio amplification modules for home or industrial applications Related Q&A: 1. Can the TDA7851L be used in a two-channel audio system? Yes, the TDA7851L can be configured to operate in a two-channel (stereo) mode by bridging two channels to create a single amplified output. 2. What are the recommended power supply requirements for the TDA7851L? The TDA7851L operates on a supply voltage ranging from 8V to 18V. It is important to provide a stable power supply within this range to ensure proper operation and audio performance. 3. Is the TDA7851L compatible with both single-ended and differential input signals? Yes, the TDA7851L supports both single-ended and differential input configurations. It offers flexibility to accommodate different input signal types based on the application's requirements. 4. Can the TDA7851L be used in motorcycle audio systems? Yes, the TDA7851L can be used in motorcycle audio systems to drive multiple speakers or a combination of speakers and a subwoofer, providing high-quality sound reproduction. 5. Does the TDA7851L require any external components for proper operation? The TDA7851L requires some external components such as coupling capacitors, feedback resistors, and input/output filters, based on the desired application configuration and performance. The datasheet provides detailed information on the recommended circuitry.