Part Number
|
CAT3648 |
Manufacturer
|
ON Semiconductor |
Description
|
4-Channel Ultra High Efficiency LED Driver |
Published
|
Aug 9, 2010 |
Detailed Description
|
CAT3648
4-Channel Ultra High
Efficiency LED Driver with
32 Dimming Levels
Description The CAT3648 is a high efficiency ...
|
Datasheet
|
CAT3648
|
Overview
CAT3648
4-Channel Ultra High
Efficiency LED Driver with
32 Dimming Levels
Description The CAT3648 is a high efficiency fractional charge pump that can
drive up to four 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.
5 V to 5.
5 V.
The EN/DIM logic input functions as a chip enable and a digital dimming interface...
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