Texas Instruments

LM4780TA/NOPB

LM4780TA/NOPB Description

The LM4780TA/NOPB from Texas Instruments is a high-performance, dual-channel Class AB audio amplifier IC designed for demanding audio applications. Part of the Overture™ series, it delivers 60W per channel into an 8Ω load, making it ideal for high-power stereo systems. With a wide supply voltage range (20V to 84V single-supply or ±10V to ±42V dual-supply), it offers flexibility in various power configurations. The device is housed in a TO-220-27 package and is RoHS3 compliant, ensuring environmental and regulatory adherence. Though marked as obsolete, it remains a reliable choice for legacy designs requiring robust audio amplification.

LM4780TA/NOPB Features

• High Output Power: 60W x 2 channels @ 8Ω, suitable for high-fidelity audio systems.
• Wide Voltage Range: Supports single (20V–84V) or dual (±10V–±42V) supplies for versatile integration.
• Class AB Topology: Balances efficiency and audio quality with low distortion.
• Robust Packaging: Through-hole TO-220-27 for secure mounting and thermal management.
• Compliance: ROHS3, REACH Unaffected, ECCN EAR99, ensuring global usability.
• Low Moisture Sensitivity: MSL 1 (Unlimited) for extended shelf life and handling ease.

LM4780TA/NOPB Applications

• Professional Audio Systems: Power amplifiers for studio monitors, PA systems, and live sound.
• Home Theater: High-power stereo or multi-channel amplification.
• Legacy Electronics: Upgrades or repairs for older audio equipment requiring durable Class AB amplification.
• Industrial Audio: Reliable performance in harsh environments (e.g., broadcast, instrumentation).

Conclusion of LM4780TA/NOPB

The LM4780TA/NOPB excels in delivering high-power, low-distortion audio amplification with broad supply flexibility. While obsolete, its Overture™ series heritage and Class AB efficiency make it a preferred choice for legacy and specialized audio designs. Engineers seeking a proven, high-wattage stereo amplifier will find it a dependable solution despite newer alternatives.