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Evaluation board: CAT32 WLED driver

Posted: 21 Oct 2008     Print Version  Bookmark and Share

Keywords:CAT32  white LED  DC/DC converter 

This document by Denisa Stefan describes the CAT32EVAL1 evaluation board for the Catalyst Semiconductor CAT32 white LED driver. The functionality and major parameters of the CAT32 can be evaluated with the CAT32EVAL. The CAT32 is a CMOS constant-current DC/DC converter that has been designed to drive with high efficiency white or other high-brightness LEDs. A single external resistor sets the LED current between 5mA and 40mA. LED current can be adjusted using either a pulse width modulated (PWM) signal or a DC voltage.

The evaluation board contains a CAT32 DC-DC boost converter and an array of white LEDs. As configured, the circuit is set to drive up to 2 banks of 4 series LED arrays. However, the user can chose a wide variety of other LED configurations using different jumper options.

View the PDF document for more information.





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