The standard backlight and keypad lighting functions are enabled in a flexible way by either a charge pump or an inductive step-up converter. The ICs come with a sophisticated, autonomous pattern generator which produces cool event and fun light patterns. They also support new features such as ambient light sensing and daylight sensing.
Some of the products offer light-to-audio synchronization for use in phones with a media playing capability. The lighting management product portfolio meets the space, feature and cost requirements of all phones from entry-level products up to high-end smartphones.
| PartNo | Description | # of Current Sinks (HV) | # of Current Sinks (LV) |
CP (max. l)
mA |
DC-DC (max. l)
mA |
Max. Vled
V |
# of LDOs | RGB Pattern | Dimming | LED Test | Flash Support |
Flash (max. l)
mA |
Package | Datasheet | Demo | Buy | PartNo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AS3689 | Flexible lighting management, charge pump, DC-DC step-up, current sink, ADC, LDO | 3 | 12 | 400 | Controller | Controller | 1 | Yes | Yes | Yes | Yes | 150 | WL-CSP36 (3x3)-0.5 | AS3689 | |||
| AS3688 | Flexible lighting management, charge pump, DC-DC step-up, current sink, ADC, LDO | 2 | 7 | 900 | Controller | Controller | 2 | Yes | Yes | Yes | Yes | 900 | QFN-32 (5x5)-0.5 | AS3688 |