New Trends in Fast Charging: Revealing Innovative Solutions from Major Chip Companies

Nowadays, fast charging has expanded from single-port mobile phone chargers to multi-port desktop chargers and PC power supplies. Protocols like PD3.1 and UFCS, combined with GaN and synchronous rectification technologies, make the usb fast charger more compact and efficient. Digital power supplies and PMBus monitoring have reduced the difficulty of implementation. Below are practical solutions from mainstream chip companies.

Hynetek: Small Size with High Performance

Focusing on "small size, big power", it covers consumer electronics and data center scenarios.

iPhone 17 Exclusive 40W Single-C Solution: The HUSB380B adopts a "zero-peripheral" minimalist design with an SOP-8L small package, suitable for mini wall charger. It supports full PD+PPS档位 and can stably charge the iPhone 17 Pro Max at nearly 40W in tests, while also providing full-speed charging for Android flagships, offering outstanding cost-effectiveness as a usb charger.

Dual-Port 40W Cascade Solution: It provides 40W fast charging for a single port, and automatically distributes power to 20W+20W when two ports are used simultaneously, balancing speed and heat dissipation, with strong adaptability for multi-device users needing a reliable usb fast charger.

600W Full-Bridge Solution for Data Centers: Built with the HP1000 controller, it has an input of 42-75V and an output of 12V/50A, with a peak efficiency exceeding 96% and a size of only 58.4×36.8×12.7mm. Supporting PMBus monitoring and multiple protections, it is suitable for 48V data center power supply.

ISMARTWARE: High Power with Visualization

Integrating "high-power fast charging" and "status visualization", it balances speed and usability.

140W 3C1A TFT Display Solution: With SW1108 GaN direct drive as the core, the power density reaches 1.32W/cm³, supporting PD3.1/UFCS protocols. The TFT display screen shows the power status of each port in real-time, making it clear at a glance when charging multiple devices with this wall charger.

SW3578 Dual-C Independent 140W Solution: Composed of SW3578+SW3196 for dual independent outputs, high-power inductors and solid capacitors ensure stable and low-ripple operation under large currents. Supporting mainstream fast charging protocols and full protection from input to output, this usb charger runs reliably under high load.

Leadtrend: 240W Full-Speed Fast Charging

The AHB flyback architecture solution can be called the "benchmark" for high-power usb fast charger. With the core LD7710 main control chip paired with GaN devices, it supports PD3.1 5-48V/5A output, with a full-load efficiency of 94.8% and no-load power consumption