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Product Detailed Parameters
- Description：DISCRETE
- Series：-
- Mfr：STMicroelectronics
- Package：Bulk
- Type：Class AB
- Output Type：4-Channel (Quad)
- Max Output Power x Channels @ Load：50W x 4 @ 4Ohm
- Voltage - Supply：6V ~ 18V
- Features：-
- Mounting Type：Surface Mount
- Supplier Device Package：PowerSO-36 EPU
- Package / Case：36-PowerBSSOP (0.433", 11.00mm Width)
- Operating Temperature：-40°C ~ 105°C (TA)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The STPA008-ZST is a Class-AB MOSFET quad bridge power amplifier designed for high-power car radio applications. It features a fully complementary P-Channel/N-Channel output structure enabling rail-to-rail voltage swing and minimized saturation losses. The device delivers up to 4 x 50 W into 4 Ω loads and operates from 6 V to 18 V, ensuring compatibility with start-stop vehicle profiles. It includes integrated protections against short circuits, over-temperature, and load dump.
Feature Summary
- High output power capability with 4 x 50 W per channel at 4 Ω
- Low voltage operation down to 6 V for start-stop engine compatibility
- Excellent GSM noise immunity reducing external filtering requirements
- Integrated protection against output short circuit, over-temperature, and reversed battery
Applications
- High-power automotive car radio systems
- Start-stop vehicle audio architectures
- Hybrid engine audio systems
- Multi-channel speaker driving in passenger vehicles
Procurement Notes
Verify the specific suffix 'ZST' against official STMicroelectronics documentation to confirm package type and tape/reel configuration. Ensure the component meets AEC-Q100 qualification standards required for automotive deployment. Cross-reference the part number with authorized distributors to confirm availability and authenticity before procurement.
Selection Notes
Select this amplifier for designs requiring high efficiency and robust performance in low-voltage automotive environments. The internal fixed gain of 26 dB simplifies signal chain design by eliminating external gain-setting components. Its ability to drive low impedance loads reduces thermal management complexity compared to standard Class-AB amplifiers.
Part Context
The STPA008 series represents STMicroelectronics' advanced MOSFET technology for automotive audio. It combines high power density with Hi-Fi distortion performance. The family supports various packages including Flexiwatt variants, catering to different thermal and spatial constraints in modern vehicle infotainment systems while maintaining compliance with strict automotive reliability standards.
FAQ
Does the STPA008 support digital input signals?
No, the STPA008 is an analog input amplifier. Digital input options are available in other ST product lines such as the TDA7803 or TDA7808.
What is the minimum supply voltage for operation?
The device is capable of operating down to 6 V, making it suitable for vehicles with start-stop systems where battery voltage drops during engine cranking.
