STMicroelectronics STA350BWTR 2.1ch Audio Amplifier, TSSOP28 Package for Home Appliances & Consumer Electronics

STMicroelectronics STA350BWTR 2.1ch Audio Amplifier Overview for Home & Consumer Audio Designs

The STMicroelectronics STA350BWTR is a high-performance, energy-efficient 2.1-channel (2.1ch) audio power amplifier-engineered for B2B applications demanding balanced sound quality, low power use, and compact design. Targeted at Home Appliances (smart speakers, built-in kitchen audio systems), Consumer Electronics (soundbars, smart TVs, portable Bluetooth speakers), and IoT smart devices with audio functionality, it integrates critical features (90dB signal-to-noise ratio SNR, 2x15W stereo + 30W subwoofer output, integrated overload/thermal protection, low 1.8W idle power) to eliminate external audio components and simplify sound system design. With high-efficiency Class D amplification, it balances loud, clear audio output with minimal energy waste-ideal for engineers prioritizing sound performance, energy savings, and space efficiency in consumer-facing audio devices.

As a trusted audio solution in STMicroelectronics?? consumer amplifier lineup-a series used by 150,000+ developers in home appliance and consumer tech sectors-it meets strict quality and compliance benchmarks: RoHS 2 compliance, ISO 9001 certification, IEC 61000-6-3 EMC compliance for consumer devices, and 4,500+ hours of reliability testing (including thermal stress, audio distortion, and power cycling validation). Senior engineers at a leading smart speaker brand endorse it, noting: ??This amplifier powers our smart speakers-90dB SNR eliminates background noise, and 1.8W idle power cuts our energy costs by 40%. It??s helped us achieve 99.95% device uptime and 92% customer satisfaction.?? For more high-performance audio amplifiers and consumer electronics components, visit IC Manufacturer.

Technical Parameters of STMicroelectronics STA350BWTR

Key Technical Features of STA350BWTR Audio Amplifier

• 2.1ch 2x15W + 30W output: Delivers balanced sound. A soundbar engineer reported: ??Stereo channels handle vocals clearly, subwoofer adds deep bass-users rate sound quality 4.8/5 vs. 3.9/5 with single-channel amps.??
• 90dB SNR: Minimizes noise. A smart TV designer noted: ??Eliminates hum from power supplies-audio stays crisp even at low volumes, reducing customer complaints by 35%.??
• 1.8W idle power: Saves energy. A home appliance brand confirmed: ??Cuts smart speaker energy use by 40%-saves $3 per unit yearly, totaling $30,000 for 10,000 devices.??
• TSSOP28 package: Saves space. A portable speaker firm shared: ??Fits in 35% smaller enclosures-no need for custom PCBs, cutting design costs by $1.20 per unit and production time by 15%.??
• Integrated protection: Boosts reliability. A consumer tech engineer explained: ??Thermal shutdown prevents overheating-speaker failure rate dropped from 2.7% to 1.7%, saving $9,000 in warranty costs.??

Advantages of STA350BWTR vs. Typical Alternatives

Compared to single-channel audio amplifiers, high-idle-power amplifiers, and large-package amplifiers, this 2.1ch amplifier solves critical B2B sound quality, energy, and space pain points-backed by real customer feedback:

1. Better sound balance than single-channel amplifiers: Single-channel amplifiers (20W max) can??t separate stereo and subwoofer audio, leading to muddled sound in soundbars or smart TVs. The STA350BWTR??s 2.1ch design fixes this. A soundbar brand said: ??Our old single-channel soundbar had flat bass-this model??s 30W subwoofer adds depth, and stereo channels keep vocals clear. Customer sound quality ratings rose from 3.9/5 to 4.8/5, and repeat purchases increased by 32%.??

2. Lower idle power than high-idle-power amplifiers: High-idle-power amplifiers (4.5W idle) waste energy in always-on devices like smart speakers, increasing user electricity bills. The 1.8W idle power of this amplifier fixes this. A smart speaker firm confirmed: ??Our old 4.5W idle speaker cost users $7.50/year in electricity-this model costs $4.50. We marketed the savings, and sales jumped by 28%. For 10,000 units, we save customers $30,000 yearly, boosting brand loyalty.??

3. Smaller package than large-package amplifiers: Large-package amplifiers (DIP24, 15mm x 10mm) can??t fit in compact portable speakers or slim smart TVs, forcing design compromises. The TSSOP28 6.4mm x 10.2mm package of this amplifier eliminates this. A portable speaker brand shared: ??Our old DIP24 speaker was 25mm thick-this model is 18mm thick, fitting in backpacks easier. We sold 40% more units, and production costs dropped by $1.20 per unit due to smaller PCBs.??

Typical Applications of STMicroelectronics STA350BWTR

This 2.1ch audio amplifier excels in consumer and home audio B2B designs-proven in these key use cases:

• Home Appliances (Smart Speakers): Delivers clear voice and music, 1.8W idle power cuts energy use. A home tech brand confirmed: ??Speaker uptime at 99.95%, user electricity savings of $3/year per unit.??
• Consumer Electronics (Soundbars): Separates stereo (2x15W) and subwoofer (30W) audio, 90dB SNR eliminates noise. A consumer brand reported: ??Sound quality ratings at 4.8/5, sales up by 32%.??
• Consumer Electronics (Smart TVs): Enhances TV audio output, compact TSSOP28 package fits slim designs. A TV manufacturer noted: ??TV thickness reduced by 18%, customer audio complaints down by 35%.??
• Home Appliances (Built-in Kitchen Audio): Withstands kitchen temperatures (-40??C to +85??C), integrated protection prevents damage. A kitchen appliance firm shared: ??Audio system failure rate down by 1%, warranty costs cut by $6,000 annually.??
• Consumer Electronics (Portable Bluetooth Speakers): Balances portability and sound, 2.1ch output keeps audio clear at high volumes. A portable tech brand confirmed: ??Speaker battery life up by 20%, customer satisfaction at 92%.??

Frequently Asked Questions (FAQ) About STMicroelectronics STA350BWTR

Why is 2.1ch design better than single-channel for soundbars?

Soundbars need separate stereo (vocals, dialogue) and subwoofer (bass) audio to avoid muddling. Single-channel amplifiers mix both, making dialogue hard to hear over bass. The 2.1ch design fixes this. A soundbar engineer said: ??Our old single-channel soundbar had users complaining about ??muffled voices??-this model??s stereo channels keep dialogue clear, and the subwoofer adds bass without interference. Dialogue clarity complaints dropped by 70%, and we gained 12 new retail partners.??

How does 1.8W idle power benefit always-on smart speakers?

Always-on smart speakers use power 24/7-high idle power (4.5W) adds up to $7.50/year in electricity costs for users. 1.8W idle cuts this to $4.50. A smart speaker brand said: ??We calculated user savings and put it on our product page-sales increased by 28%. For 10,000 speakers, we save customers $30,000 yearly, which builds trust. Users also appreciate lower energy use, leading to 35% fewer returns.??

What value does 90dB SNR add for smart TVs?

Smart TVs are near power supplies and other electronics that cause noise-low SNR (75dB) makes this noise audible, ruining quiet scenes. 90dB SNR eliminates it. A TV manufacturer said: ??Our old 75dB SNR TV had a faint hum during quiet movies-this model??s 90dB SNR keeps audio clean. Customer complaints about ??background noise?? dropped by 65%, and our TV line??s rating rose from 4.2/5 to 4.7/5.??

How does the TSSOP28 package help slim consumer devices?

Slim devices like 15mm-thick smart TVs or 20mm-thick portable speakers need small components-large packages (DIP24, 15mm x 10mm) force thicker designs. TSSOP28 (6.4mm x 10.2mm) fits slim profiles. A portable speaker designer said: ??Our old DIP24 speaker was 25mm thick-this model is 18mm, fitting in jacket pockets. We sold 40% more units, and production costs dropped by $1.20 per unit because we use smaller PCBs.??

Why is integrated protection important for home appliances?

Home appliances like kitchen audio systems face temperature changes and power spikes-no protection leads to amplifier damage and costly repairs. Integrated protection fixes this. A kitchen appliance firm said: ??Our old unprotected audio system had a 2.7% failure rate-this model??s thermal/overload protection cuts it to 1.7%. We saved $9,000 in warranty costs, and service calls dropped by 37%. Customers also trust our appliances more, leading to 22% more repeat buys.??