Part Number
|
CAT3647 |
Manufacturer
|
ON Semiconductor |
Description
|
3-Channel Ultra High Efficiency LED Driver |
Published
|
Aug 9, 2010 |
Detailed Description
|
CAT3647
3-Channel Ultra High
Efficiency LED Driver with
32 Dimming Levels
Description
The CAT3647 is a high efficiencye...
|
Datasheet
|
CAT3647
|
Overview
CAT3647
3-Channel Ultra High
Efficiency LED Driver with
32 Dimming Levels
Description
The CAT3647 is a high efficiencye fractional charge pump that can drive up to three LEDs programmable by a one wire digital interface.
The inclusion of a 1.
33x fractional charge pump mode increases device efficiency by up to 10% over traditional 1.
5x charge pumps with no added external capacitors.
Low noise input ripple is achieved by operating at a constant switching frequency which allows the use of small external ceramic capacitors.
The multi−fractional charge pump supports a wide range of input voltages from 2.
4 V to 5.
5 V.
The EN/DIM logic input functions as a chip enable and a digital dimming interfa...
Similar Datasheet