HPA00489DRVR

HPA00489DRVR is a high-speed driver compatible with up to 400 KHz switching frequency, which dedicatedly serves white LED application. HPA00489DRVR is a high-performance product utilizing advanced control techniques and high-frequency power MOSFETs for high efficiency performance. It is designed to drive a full bridge stage in a flyback topology. It includes a current sense amplifier to monitor current sense voltage across a resistor on the output of each flyback stage as well as an under voltage lockout (UVLO) to prevent device breakdown due to unbalanced or low voltage input.

The application field of HPA00489DRVR mainly covers applications such as mobile chargers, AC DC adapter, LED lamps and small household appliances. The driver products are specifically designed to drive a white LED with an efficiency of over 90%. This enables them to provide a highly efficient operation for long hours with no need to replace the LED bulbs. In addition, HPA00489DRVR can be integrated with other filtration and regulation solutions to provide a fully optimized power supply solution for any application.

Working principle of the HPA00489DRVR is very simple. It consists of two main parts: a switching element and a controller. The switching element is usually an high-frequency MOSFET device that switches on and off a capacitor to regulate the output current. The controller is typically a microcontroller or similar embedded system; it receives the current sense signal from the switching element and adjusts the switching frequency accordingly. The operation of the driver then is to constantly adjust the ON/OFF ratio of the capacitor using an algorithm based on the current sense signal. This allows for highly efficient and precise regulation of the output current. In addition, HPA00489DRVR also includes an under-voltage lockout system that prevents the driver from operating if the input voltage is too low.

The HPA00489DRVR is an excellent choice for driving white LED applications due to its high efficiency and smooth operation. Its advanced features such as the current sense amplifier, UVLO, and adjustable frequency make it one of the best products available for driving LEDs. Moreover, its integration with other filtration and regulation solutions makes HPA00489DRVR a reliable and optimal solution for any application.