Dedicated not only to personal electronic devices but also to portable industrial equipment

TI announced the launch of several new power management chip products that can reduce the size and improve the efficiency of power supply and charging solutions for personal electronic devices and portable industrial equipment.

TI's new chipset product, which operates at up to 1 MHz, combines the UCC28780 active clamp flyback controller and the UCC24612 synchronous rectifier controller, and can reduce the size of power supplies for AC/DC adapters and USB PD (Power Delivery) chargers by half.

In addition, the bq25910 6A 3-level buck battery charger is suitable for battery-powered electronic devices requiring maximum charging efficiency with a small solution size, and can reduce the solution footprint of smartphones, tablets, and electronic POS devices by up to 60%.

Steve Lambouses, Vice President of TI’s High Voltage Power Solutions business unit, stated, “Consumers want faster charging with a smaller footprint. By using these new products, not only can you meet these demands, but you can also do more with less power.”

Designed to operate with gallium nitride (GaN) and silicon (Si) FETs, the UCC28780 includes enhanced adaptive features, enabling it to meet modern efficiency requirements with an active clamp flyback topology. With multi-mode control capable of changing operation according to input/output conditions, the UCC28780 and UCC24612 work together to achieve and maintain high efficiency under both maximum and light loads.

This chipset operates efficiently at up to 1 MHz, reducing size by 50% compared to other solutions and achieving higher power density. With multi-mode control, it achieves up to 95% efficiency at maximum load and standby power of less than 40 mW, exceeding and meeting Code of Conduct (CoC) Tier 2 and U.S. Department of Energy (DoE) Level VI efficiency requirements. For designs exceeding 75 W, this chipset can be used in conjunction with the new 6-pin power factor correction (PFC) controller, the UCC28056. Developers can easily design desired systems using features such as adaptive zero voltage switching (ZVS) control, combining resistor settings with automatic controller tuning.

The bq25910, an innovative 3-level power converter, enables charging up to 50% faster than existing architectures by significantly reducing heat loss. By integrating MOSFETs and lossless current sensing, the bq25910 reduces PCB space, and developers can save additional space by using small 0.33 Ω inductors. With a charging efficiency of 95%, it takes less than 30 minutes to charge a standard smartphone battery from a completely depleted state to 70%. By utilizing a differential battery voltage sensing line to bypass parasitic resistance on the PCB for rapid charging, it allows for accurate voltage measurement even when the battery is disconnected from the charging circuit within the system.