STPA008-QIX

Overview

The STPA008-QIX is a Class-AB MOSFET quad bridge power amplifier designed for automotive audio applications. It delivers up to 50 W per channel into a 4 Ω load and supports 2 Ω driving capability. The device operates with a supply voltage range of 6 V to 18 V and features a fully complementary P-Channel/N-Channel output structure for rail-to-rail swing. It includes internal protections against short circuits, overtemperature, and load dumps, while maintaining AEC-Q100 qualification.

Feature Summary

• Fully complementary P-Channel/N-Channel MOSFET output stage enabling rail-to-rail voltage swing
• AEC-Q100 qualified for automotive reliability standards
• Integrated protection mechanisms including thermal limiting, DC offset detection, and reverse battery protection

Applications

• High-power car radio systems
• Automotive audio amplification
• Start-stop vehicle battery profile operation

Procurement Notes

Verify the specific suffix 'QIX' indicates AEC-Q100 automotive qualification distinct from standard variants. Confirm package orientation matches Flexiwatt-V-25 requirements. Ensure design accounts for through-hole mounting constraints and verify thermal management needs for 50 W continuous output.

Selection Notes

Select this component for designs requiring high current drive into low impedance loads like 2 Ω speakers. The fixed 26 dB gain simplifies interface circuitry. Consider the 6 V minimum operating voltage for compatibility with modern automotive electrical architectures during engine stop conditions.

Part Context

Part of the STPA008 series, which utilizes breakthrough MOSFET technology to minimize saturation losses. This family targets the car-radio field by providing high output power with unparalleled distortion performance compared to traditional bipolar technologies.

Replacement Considerations

STPA008-4WX is a related variant within the same series but may differ in packaging or specific automotive qualification status.