10-A supercapacitor-based LED flash driver enables thin camera phones

10-A supercapacitor-based LED flash driver enables thin camera phones

The NCP5680 supercapacitor-optimized LED flash driver is offered as the first of its kind to deliver up to 10 A for photo flash and video light in ultraslim camera phones and compact digital cameras. The company claims that this total LED flash solution supplies comparable light energy to xenon flash, but with only half of the comparable solution height (0.55 mm) and no need for an extra LED for video capture. Today’s WLEDs can deliver this level of light energy, but require up to 400% more power than a camera battery can provide.

Fully programmable control of charging and discharging the supercapacitor and unique overload protection ensures 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.

The I2 C registers in the NCP5680 allow users to adjust the output current and flash duration of each of the two LEDs in real time. Available in a µQFN-24 package, the driver also features flash timeout, temperature detection, overload protection, and short-circuit protection. ($1.10 ea/3,000 available now.)

ON Semiconductor , Phoenix , AZ
Sales 602-244-6600
http://www.onsemi.com