MP3204

TM MP3204 1.3MHz Fixed Frequency 5 White LED Driver with Open LED Protection The Future of Analog IC Technology TM DESCRIPTION The MP3204 is a step-up converter designed for driving up to 5 series white LEDs from a single cell Lithium Ion battery. The MP3204 uses current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 104mV feedback voltage reduces power loss and improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition. The MP3204 includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload. The MP3204 is available in a small 6-pin TSOT23 package. EVALUATION BOARD REFERENCE Board Number EV3204DJ-00A Dimensions 1.9”X x 1.8”Y x 0.4”Z FEATURES On Board Power MOSFET Drives up to 5 Series White LEDs Up to 87% Efficiency Over 1MHz Fixed Switching Frequency Low 104mV Feedback Voltage Soft-Start/PWM Dimming UVLO, Thermal Shutdown Internal Current Limit Open Load Shutdown Available in a TSOT23-6 Package APPLICATIONS Cell Phones Handheld Computers and PDAs Digital Still Cameras Small LCD Displays “MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION VIN 5V 6 1 EN 4 IN EN SW 5 OV 2 MP3204 GND FB 3 LED1 LED2 LED3 LED4 LED5 ...