Datasheet Details
Part number:
AF1937, AF1937-Alfa
Manufacturer:
Alfa-MOS
File Size:
551.01 KB
Description:
White led step up converter.
Note:
This datasheet PDF includes multiple part numbers: AF1937, AF1937-Alfa.
Please refer to the document for exact specifications by model.
AF1937, AF1937-Alfa, White LED Step UP Converter
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
AF1937 Features
* Inherently Matched LED Current High Efficiency: 84% Typical Drives Up to Four LEDs from a 3.2V Supply Drives Up to Six LEDs from a 5V Supply 36V Rugged Bipolar Switch Fast 1.2MHz Switching Frequency Uses Tiny 1mm Tall Inductors Requires Only 0.22µF Output Capacitor Application Battery Power Equipmen
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