LED driver suits coin cell powered backlighting apps

LED driver suits coin cell powered backlighting apps

Suited for ultra low power LED applications such as portable handheld medical equipment, the CAT3661 one-channel LED driver is able to drive a single LED backlight with a current of up to 5 mA. Soft-start current limiting and short-circuit protection make the new device ideal for use in equipment powered by coin cell batteries. It also provide fault diagnostics.

The quad-mode charge pump supports input voltages from 2.0 to 5.5 V. In addition, the device achieves peak efficiency levels of up to 92%, which is 10% higher than traditional high efficiency 1.5x tri-mode charge pumps. Packaged in a 16-lead TQFN package, the CAT3661 features a typical quiescent current of just 150 µA across all operating modes at full load and a zero current shutdown. ($0.86 per unit in 10,000 available now.)

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