The CAT4237 is a high voltage CMOS constant-current DC/DC converter that has been designed to drive with high efficiency white or other high brightness LEDs. The high-voltage output stage allows driving up to 8 white LEDs in series. A single external resistor sets the LED current between 5mA and 30mA. LED current can be adjusted using either a pulse width modulated (PWM) signal or a DC voltage. Detailed descriptions and electrical characteristics are in the CAT4237 data sheet. The evaluation board contains a CAT4237 DC-DC boost converter and an array of white LEDs. As configured, the board circuit is set to drive up to 8 white LEDs in series. The user can chose to connect the CAT4237 output to the LEDs string available on board or to an external LEDs string from an application.
Attribute
Value
LED Technology
LED Driver
Kit Classification
Evaluation Board
For Use With
High Voltage CMOS Constant-Current DC-DC Converter
Featured Device
CAT4237TD-GT3
Kit Name
High Voltage CMOS Constant-Current DC-DC Converter Evaluation Board