When connecting to an ambient light sensor

LED lighting products for commercial and industrial facilities that improve energy savings, reduce maintenance costs, and are safe and easy to install. Based on advanced electro-optic technologies, Albeo's reliable light fixtures provide superior performance at lower costs than competing technologies. Albeo's management team has decades of experience in solid-state product development and manufacturing, and continues to deliver new products that enable users to better control their total operating costs.combined with an ultra-thin prismatic supercapacitor, delivers an ideal LED flash and power management solution for slim camera phones and digital cameras," said Marie-Therese Capron, ON Semiconductor director of low voltage power management products. "This total LED flash solution supplies comparable light energy to xenon flash, but with only half of the comparable solution height and no need for an extra LED for video capture. The NCP5680 enables the Li-ion battery to support more power-hungry functions for a longer time.

NCP5680 complements the Li-ion battery by supplying high-peak-current of up to 10A for flash lighting optimized for use with the BriteFlash Power Architecture developed by CAP-XX. Fully programmable control of charging and discharging of the supercapacitor and unique overload protection ensure the right amount of light is provided for high-quality photography. The integrated driver can also power other high-peak-current circuits in portable systems, such as audio amplifiers, extending the useful battery operating time.To produce high-resolution pictures in low-light conditions, cameras of 5Mpixels or more require a high-intensity flash. Today's white LEDs can deliver this level of light energy, but require up to 400 percent more power than a camera battery can provide. To support the battery, the NCP5680 manages a supercapacitor to drive the LED flash to full intensity, supplying high-peak-current up to 10A. The integrated driver in the NCP5680 also manages the supercapacitor to handle other peak-power needs: zoom, auto-focus, audio, video, wireless transmissions, GPS readings and RF amplification.

The NCP5680 integrates all circuitry required to charge the supercapacitor, manage in-rush current and control LED current, thus saving designers development time, board space and component cost. Fully programmable control of charging and discharging of the supercapacitor ensures the right amount of light for high-quality photography.The I2C registers in the NCP5680 allow users to adjust the output current and flash duration of each of the two LEDs in real time. Hence, this solution can perform different lighting effects such as indicator light, pre-flash, and power flashlight for photographing and torchlight for video recording. When connecting to an ambient light sensor, the NCP5680 will automatically limit the flash duration to prevent photo over-exposure, thus preserving the photo quality. Additionally, the supercapacitor charging current is adjustable through an I2C register. NCP5680 can disable the charging operation during global system for mobile (GSM) transmission to limit the current drawn from the battery.