STA328 STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics STA328 is a Class-AB audio amplifier IC supporting mono and stereo configurations up to 85°C in a 36-pin PowerSO package with integrated heat slug. Delivers high-quality audio output for consumer electronics applications. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 36
- Lifecycle
- OBSOLETE
- Datasheet
- STA328 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -20.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STA328?
- Class-AB mono/stereo audio amplifier architecture delivering low distortion audio output in a single IC
- 36-pin PowerSO package with integrated heat slug enabling efficient thermal dissipation without external heatsink
- Up to 85°C operating temperature supporting demanding consumer audio amplifier reliability requirements
What is STA328 used for?
The STA328 is designed for consumer audio amplifier applications including home theater receivers, soundbars, portable Bluetooth speakers, and multi-channel audio docking stations requiring high-fidelity Class-AB amplification. Its integrated heat slug in the 36-pin PowerSO package allows efficient thermal management on compact PCBs without external heatsink hardware, reducing overall system size and assembly cost. The mono/stereo configuration flexibility makes it adaptable for both single-channel subwoofer drivers and full stereo left/right channel amplification in consumer electronics platforms.
What are the specifications of STA328?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Consumer IC Type | CONSUMER CIRCUIT |
| JESD-30 Code | R-PDSO-G36 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP36,.56 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 3V |
| Surface Mount | YES |
| Temperature Grade | OTHER |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the STA328 datasheet?
STA328 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STA328?
Compatible alternatives and drop-in replacements for STA328:
Frequently Asked Questions
What audio amplifier topology does STA328 use, and how does it affect audio fidelity versus Class-D alternatives?
The STA328 uses a Class-AB amplifier topology, which produces inherently lower total harmonic distortion (THD) than switching Class-D designs, making it preferred for high-fidelity home audio equipment where audio quality is prioritized over power efficiency at output levels below 10 W per channel.
How does the PowerSO package with heat slug help manage thermal performance of STA328 in a compact enclosure?
The 36-pin PowerSO package integrates a metal heat slug on the underside, providing a direct thermal path to the PCB copper plane or a small adhesive heatsink pad, enabling heat dissipation of several watts without the need for a separate clip-on heatsink in slim soundbar or docking station enclosures.
For a stereo desktop speaker amplifier design, what configuration options does STA328 offer?
The STA328 supports both mono bridged-tied-load (BTL) and stereo single-ended output configurations, allowing designers to use a single IC for a 2-channel stereo speaker output or bridge both amplifiers for a higher-power mono channel driving an 8-ohm or 4-ohm woofer at up to 85°C ambient.
What maximum operating temperature does STA328 support, and how does this affect reliability in consumer amplifier products?
The STA328 operates up to 85°C, which covers typical consumer electronics operating conditions including compact audio enclosures with limited airflow, ensuring reliable long-term operation without thermal shutdown during continuous music playback at moderate output power levels of 5 W to 15 W.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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