Part Number
|
AF1937 |
Manufacturer
|
Alfa-MOS |
Description
|
White LED Step UP Converter |
Published
|
Nov 22, 2018 |
Detailed Description
|
Alfa-MOS
Technology
AF1937
20V White LED Step UP Converter
General Description
The AF1937 is a step-up DC/DC converter...
|
Datasheet
|
AF1937
|
Overview
Alfa-MOS
Technology
AF1937
20V White LED Step UP Converter
General Description
The AF1937 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current.
The device can drive two, three or four LEDs in series from a Li-Ion cell.
Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors.
The output capacitor can be as small as 0.
22µF, saving space versus alternative solutions.
A low 95mV feedback voltage minimizes power loss for better efficiency.
Features
Inherently Matched LED Current High Efficiency: 84% Typical Drives Up to Four LEDs from a 3.
2V Supply Drives Up to Six LED...
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