PS8A0011WE

PS8A0011WE is an energy efficient white LED driver chip developed by Pollard Semiconductor Company. This power management integrated circuit (PMIC) provides a complete power solution for high efficiency lighting applications. It is a sophisticated device that combines a variety of power supply, LED dimming and feedback control circuits in a single chip.

The PS8A0011WE integrates several features that make it ideal for applications requiring high efficiency LED driver solutions. First, it offers a low noise synchronous buck converter for providing a regulated low voltage output for powering up to four independent strings of white LEDs. The device can also be used to drive a single DC output. It has an adjustable operating frequency range of 50-150KHz and a high efficiency buck regulator that can reach up to 96%.

Additionally, the PS8A0011WE offers programmable LED dimming control settings. On-chip LED dimming control options enable LED dimming of up to 99 stages. An external LED current programming pin allows users to set the LED current as needed within a wide range up to 2A. The device offers also a feedback control loop to assure the LED current accuracy.

The PS8A0011WE is suitable for a variety of applications including LED strip backlighting, LED lighting, LED advertising signs, LED dome lights, and LED automotive applications. The device is available in a compact 10-pin TSSOP package for easy PCB placement.

In summary, the PS8A0011WE is a high efficiency white LED driver for energy-efficient lighting applications. It integrates a synchronous buck converter with adjustable operating frequency, LED dimming control and feedback control loop, all in a single chip. The device is suitable for a variety of lighting applications and is available in a convenient 10-pin TSSOP package.