STA50813TR

Overview

The STA50813TR is a monolithic quad half-bridge stage audio amplifier manufactured by STMicroelectronics using Multipower BCD Technology. It operates with a supply voltage range of 10 V to 36 V and delivers an output power of 160 W into an 8-ohm load at THD = 10% when configured as a single bridge (BTL) with VCC at 35 V. The device features a 200 mΩ complementary DMOS output stage and supports dual bridge, single bridge with double current, or half-bridge configurations via the CONFIG pin. It includes under-voltage protection, thermal warning output, and thermal protection.

Feature Summary

• Multipower BCD Technology integration for high-efficiency digital audio amplification
• Reconfigurable output topology supporting dual bridge, single bridge with doubled current, or half-bridge modes
• Complementary DMOS output stage with low on-resistance for minimal pulse width distortion
• Integrated safety mechanisms including under-voltage protection, thermal warning, and thermal shutdown

Applications

• Stereo All-Digital High Efficiency (DDX) amplifier output stages
• High-power single bridge audio systems requiring peak output capabilities
• Automotive infotainment and sound system designs
• Industrial audio processing equipment

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging configuration against the official datasheet revision. Confirm that the operating temperature range of -40°C to +90°C aligns with your system's environmental requirements. Ensure the 36 V maximum supply voltage rating is not exceeded in your power design. Check for RoHS compliance status as documented in the product specifications.

Selection Notes

Select this component when a reconfigurable quad half-bridge stage is required for Class-D audio applications. It is suitable for designs needing flexibility between stereo and mono bridged configurations. Consider the 200 mΩ Rds(on) for efficiency calculations. Verify compatibility with CMOS logic inputs and threshold levels proportional to VL pin voltage for proper signal interfacing.

Part Context

The STA50813TR belongs to the STA508 series of audio amplifiers from STMicroelectronics. This series utilizes Multipower BCD technology to integrate high-voltage DMOS outputs with control logic on a single chip. The device is designed for high-efficiency digital audio amplification, offering configurable output stages to meet varying power and channel requirements in professional and consumer audio systems.

Replacement Considerations

Consult the official STMicroelectronics documentation for direct pin-to-pin replacements within the STA508 family. Verify electrical parameters such as supply voltage range, output current capability, and package dimensions before substitution. Ensure thermal management solutions are compatible with the replacement device's power dissipation characteristics.