On Semiconductor Introduces Two LED Drivers for Handset LCD Backlighting

Phoenix, Arizona-based power electronics company, On Semiconductor, introduced
two dual output white LED drivers for handheld display backlighting at the CPS
Expo in Shanghai, China. The tiny 2 mm x 0.55 mm device in an LLGA-12 (leadframe
land grid array -12) package. According to the company, the NCP5602 and NCP5612
are the industry’s smallest dual output charge pumps for driving LCD display
backlighting.

The devices have consistent brightness and assured maching. Each device achieves
up to 87 percent peak efficiency with 0.2 percent LED-to-LED matching. Both
drivers have a built-in ICON function that drives a low current through one
of the two LEDs, allowing the clock display to be seen even in a dark environment.
They feature a dimming mode, which the company says eliminates the need for
additional software programming and simplifies overall design. The NCP5602 and
NCP5612 feature short-circuit and overvoltage protection to ensure safe operation
without adding extra components. Company
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