company blog about Supply TI AC/DC Converters Series:Integrated Silicon,Integrated GaN

Supply TI AC/DC Converters Series:Integrated Silicon,Integrated GaN

Shenzhen Mingjiada Electronics Co., Ltd. is a renowned distributor of electronic components. Upholding the principle of ‘serving customers and passing on benefits to customers’, we provide high-quality, diverse electronic components.

【Supply Advantages】

1. Comprehensive product range covering all application scenarios

Rich core product lines: Specialising in 5G / New Energy / IoT / Automotive-grade / Communications / AI ICs, while also covering storage, sensors, MCUs, FPGAs, transceivers, WiFi/Bluetooth wireless modules, connectors, etc. Additionally, we provide evaluation boards/development tools from brands such as ST, ROHM, and Lattice, supporting the entire process from R&D to mass production.

Precise Tiered Matching: Concurrently offers general-purpose, low-power, automotive-grade (AEC-Q100, ASIL-B/D functional safety), and industrial-grade (-40℃~125℃ wide temperature) products to serve diverse scenarios including home appliances, automotive electronics, industrial control, medical terminals, and smart wearables.

2. Rigorous Quality Control with Traceability

Procured through official channels, accompanied by original manufacturer certification and comprehensive quality traceability reports to eliminate counterfeits. Automotive/industrial-grade products undergo corresponding industry standard testing (e.g., AEC-Q100).

Professional quality inspection protocols: full incoming inspection + re-inspection upon dispatch ensure batch consistency and reliability.

3. Ample Stock, Agile Delivery

Extensive stocked inventory supports both single-unit sample orders (for R&D prototyping) and high-volume production runs. VMI (Vendor Managed Inventory) and long-term supply agreements available.

Standard dispatch within 24 hours; emergency response within 4 hours; next-day delivery to core regions. Dual warehousing in Hong Kong and Shenzhen enables global rapid fulfilment.

4. Flexible Pricing and Services for Diverse Requirements

Large-scale procurement delivers cost advantages, with tiered pricing and long-term price protection to help clients manage expenditure.

Value-added services including one-stop BOM matching, alternative component recommendations, technical consultation, and obsolete stock management mitigate procurement and design risks.

A hybrid distribution model combining authorised and non-authorised channels enables rapid sourcing of niche, discontinued, or scarce components.

I. Integrated Silicon AC/DC Converters: Mature, Reliable Classics

Technical Core: Integrated Advancement of Silicon-Based Power Devices

TI's integrated silicon AC-DC converters utilise **silicon-based MOSFETs and IGBTs** as core power devices, integrating proprietary control chips, driver circuits, and protection circuits into a single package. This achieves monolithic/module-level integration of controllers and power switches. Leveraging mature silicon semiconductor manufacturing processes and a robust supply chain, this series has undergone extensive market validation, delivering maximum technical stability and compatibility. It remains the mainstream choice for medium-to-low power applications demanding high reliability.

Compared to discrete silicon solutions, TI's integrated silicon converters significantly simplify peripheral circuitry, reduce parasitic parameter interference, lower design complexity, and minimise PCB footprint. Simultaneously, built-in multiple protection mechanisms—including overvoltage, overcurrent, overtemperature, and short-circuit protection—enhance overall system reliability while balancing **cost control** and **design convenience**.

Core Product Portfolio and Features

TI's integrated silicon AC-DC converters serve applications including low-power adapters, industrial power supplies, home appliance power delivery, and automotive auxiliary power. They feature mainstream topologies such as quasi-resonant flyback, totem pole PFC, and LLC resonant converters. Key product characteristics include:

- Wide voltage adaptation: Supports 85V-265V universal AC input, accommodating diverse regional grid conditions. Delivers excellent low-voltage start-up performance and withstands harsh grid environments.

- Efficient and stable operation: Utilises optimised PWM control and quasi-resonant technology, achieving over 90% efficiency at full load with low light-load losses. Meets stringent efficiency standards (e.g., Tier 6).

- Highly Integrated Design: Incorporates high-voltage start-up, feedback control, and power switches internally. Requires only minimal external resistors, capacitors, and magnetic components, significantly reducing development cycles and lowering BOM costs.

- Industrial-Grade Reliability: Operates across an extensive temperature range (-40°C to 125°C) with robust interference resistance. Meets long-term stability demands in harsh industrial and automotive environments, delivering a lifespan of tens of thousands of hours.

- Comprehensive Specification Coverage: Power ratings spanning 5W to 300W address niche segments including small household appliances, consumer electronics adapters, industrial instrumentation power supplies, and automotive low-voltage power sources. Diverse packaging options (SOP, DIP, QFN) are available.

Flagship products such as the UCC series integrated flyback converters and LM series offline switching power supply chips have become benchmarks for mid-to-low-end power conversion solutions due to their high cost-effectiveness and compatibility. They are widely adopted in set-top boxes, routers, small appliances, industrial control modules, and similar equipment.

Core Advantages and Applicable Scenarios

Core Advantages: Mature manufacturing processes, low cost, maximised reliability, comprehensive ecosystem, strong compatibility. Requires no complex thermal or EMI design, with low mass production complexity.

Application Scenarios: Primarily target cost-sensitive domains with stringent reliability requirements and moderate power density needs, including: low-power adapters for consumer electronics, traditional home appliance power supplies, industrial control modules, auxiliary automotive power sources, security surveillance equipment, and standard lighting drivers.

II. Integrated Gallium Nitride AC/DC Converters: Revolutionary Efficiency Pushing Boundaries

Technological Core: The Power Revolution of Wide Bandgap Semiconductors

As a third-generation wide-bandgap semiconductor material, gallium nitride (GaN) possesses core characteristics that fundamentally overcome the performance limitations of silicon-based devices: **a wider bandgap, higher electron mobility, faster switching speeds, superior voltage withstand capability, and extremely low losses**. TI's integrated GaN AC-DC converters achieve high-density integration of GaN power switches, driver circuits, control logic, and protection functions. This realises a unified ‘controller + GaN power stage’ package, maximising the performance potential of wide-bandgap materials.

TI employs its proprietary GaN-on-Si patented process, balancing GaN's high performance with the scalability advantages of silicon-based manufacturing. It incorporates dedicated GaN drivers to optimise switching timing, suppress voltage spikes and EMI interference, addressing the challenges of complex discrete GaN device design and high parasitic losses. This enables high-frequency, high-efficiency, and high-density power conversion.

Core Product Portfolio and Characteristics

TI's integrated GaN AC/DC converters prioritise **high power density and ultra-high efficiency**, serving premium applications including fast charging, server power supplies, automotive OBCs, renewable energy storage, and industrial high-power systems. Key products (such as the UCG2882x series and LMG series integrated GaN power stages) deliver outstanding performance:

- Ultra-low loss, ultra-high efficiency: Switching losses reduced by over 80% compared to silicon-based devices, achieving system efficiency of 95%-99%. Effortlessly meets 80 Plus Titanium efficiency standards, significantly reducing energy consumption and thermal management demands.

- High-frequency, high-power density: Supports ultra-high-frequency switching above 500kHz, reducing magnetic component volume by 60%. Achieves power density exceeding 1.2kW/L, with a 50% smaller footprint than silicon-based solutions at equivalent power, delivering ‘compact size, high power’.

- High-voltage, high-speed switching: Incorporates an integrated 750V GaN HEMT with switching speeds up to 150V/ns. Low-inductance packaging design ensures crisp switching action, minimising ringing and EMI emissions.

- Comprehensive Protection: Integrated cycle-by-cycle overcurrent protection, overvoltage protection, overtemperature protection, and undervoltage lockout. Coupled with temperature monitoring and fault feedback, it adapts to extreme operating conditions, with reliability validated through over 80 million hours of testing.

- Flexible High-End Applications: Power range from 30W to 5kW, supporting USB PD fast charging, bidirectional AC/DC conversion, and totem-pole bridge-less PFC topologies. Suited for data centres, new energy vehicles, energy storage systems, and high-power fast charging applications.

For instance, the UCG28826 65W integrated GaN quasi-resonant flyback converter utilises a compact 5×5mm package. It incorporates a 170mΩ low on-resistance 750V GaN device with a self-biased design eliminating auxiliary windings. This solution perfectly suits high-power fast charging for laptops and mobile phones, balancing compact size with efficient output.

Core Advantages and Application Scenarios

Core Advantages: Exceptionally low losses, outstanding power density, rapid switching speeds, minimal thermal management requirements, and significant energy savings. Ideal for high-end, compact, and highly efficient power conversion applications.

Application scenarios focus on domains demanding **ultimate efficiency, extreme miniaturisation, and high-power output**, including: high-power fast charging for mobile phones/laptops, data centre server power supplies, on-board chargers (OBC) for new energy vehicles, bidirectional converters for photovoltaic energy storage, industrial high-power supplies, and specialised aerospace power supplies.