Outline

This is a step-up IC developed for use in EL backlights.

Because of their ability to light the entire panel uniformly, EL backlights are gradually becoming more widespread compared with LEDs.

In particular, recently there has been a strong tendency toward smaller sizes and lighter weights, and more manufacturers are adopting ICs in place of transformers to step up voltages.

This IC was designed to meet these market needs.

Features

1. Low-voltage driving possible VIN=0.95V min.

2. Brightness can be adjusted The brightness can be adjusted by changing the oscillation

frequency through the externally mounted capacitance

3. Can be driven using a small coil Coil inductance of about 820µH required

4. On/off control possible Current consumption while off=10µA or less

Applications

1. Pagers

2. Portable phones, PHS

3. Wristwatches

4. Display components of remote-controlled minidiscs, CD players, headphone stereos, other equipment