STA51813TR

Overview

The STA51813TR is a monolithic quad half-bridge audio amplifier stage manufactured by STMicroelectronics using Multipower BCD technology. It operates with a supply voltage up to 40V and delivers a continuous output current of 3.5A per channel. The device is housed in a PowerSSO-36 EPU surface-mount package. It supports flexible configuration as a quad half-bridge, dual bridge, or reconfigured topology. Key electrical specifications include a maximum operating temperature of +90°C and a total harmonic distortion plus noise (THD+N) of 10% under specified conditions.

Feature Summary

• Monolithic integration of four half-bridge stages within a single multipower BCD chip
• Flexible topology support allowing operation as quad half-bridge, dual bridge, or reconfigured configurations
• High power handling capability with 40V supply voltage and 3.5A output current per channel

Applications

• Multi-channel audio amplification systems requiring independent channel control
• Automotive audio applications utilizing robust BCD technology
• High-power consumer audio equipment needing compact quad amplifier solutions

Procurement Notes

Verify the exact ordering code against the manufacturer's official datasheet to ensure compatibility with the required thermal and electrical specifications. Confirm that the PowerSSO-36 EPU package footprint matches the design layout. Check for any specific application notes regarding the reconfiguration of half-bridges into different topologies to ensure proper implementation.

Selection Notes

Select this component when a high-current, multi-channel audio solution is required in a compact form factor. The BCD technology offers a balance of power handling and control logic integration. Ensure the system design accounts for the thermal dissipation requirements associated with 21W maximum power dissipation and the +90°C maximum operating temperature limit.

Part Context

The STA518 series represents STMicroelectronics' approach to integrated audio power stages. This specific model utilizes BCD (Bipolar-CMOS-DMOS) technology to combine high-voltage power devices with low-voltage CMOS control on a single die. This integration reduces external component count and board space compared to discrete solutions.

Replacement Considerations

Consult official replacement guides for direct equivalents. Verify pinout compatibility and thermal characteristics before substituting with other quad half-bridge amplifiers from different manufacturers.