LA1150N-E

Overview

The LA1150N-E is a Class-AB audio amplifier designed for automotive applications, specifically serving as a power amplifier for bus and track systems in car stereos. It operates with a supply voltage range of 10 V to 30 V and delivers 20 W of output power into a 4 Ohm load. The device features a total harmonic distortion plus noise (THD+N) of 0.07%. It supports through-hole installation and functions within an operating temperature range of -35°C to +85°C.

Feature Summary

• Class-AB topology for high-fidelity audio reproduction
• Integrated power amplifier stage for direct speaker driving
• Designed for robust operation in automotive electrical environments

Applications

• Car stereo bus and track power amplification
• Automotive radio FM IF system integration
• Vehicle infotainment audio output stages

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm the specific revision level matches design requirements, as legacy components may have limited availability. Check for RoHS compliance status and ensure storage conditions adhere to moisture sensitivity levels if applicable. Validate that the through-hole package variant aligns with PCB footprint specifications before finalizing procurement orders.

Selection Notes

Select this component when a dedicated Class-AB solution is required for automotive audio buses. Ensure the 10 V to 30 V supply range matches the vehicle's electrical architecture. Verify thermal management capabilities for the through-hole package under maximum load conditions. Consider the 4 Ohm load impedance requirement for speaker matching. Evaluate end-of-life status implications for long-term production planning.

Part Context

This part belongs to onsemi's legacy audio amplifier portfolio, historically associated with AMI Semiconductor products acquired by onsemi. It represents a specialized discrete solution for automotive radio systems rather than a modern integrated multimedia processor. The component serves niche applications requiring specific analog audio characteristics distinct from digital amplifier solutions.

Replacement Considerations

Check for official obsolescence notices or product discontinuance notifications. Identify cross-referenced parts from onsemi's current audio amplifier lineup that match the Class-AB specification and automotive qualification standards. Verify pin compatibility and thermal performance before substituting.