MP2314GJ-Z

MP2483 2.5A, 55V, Programmable Frequency White LED Driver The Future of Analog IC Technology DESCRIPTION FEATURES The MP2483 is a 55V, 2.5A, white LED driver suitable for either step-down or inverting step-up/down applications. It achieves 2.5A peak output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes thermal shutdown, cycle-by-cycle peak current limiting, open strings protection and output short circuit protection. The MP2483 incorporates both DC and PWM dimming onto a single control pin. The separate input reference ground pin allows for direct enable and/or dimming control for a positive to negative power conversion. • • 2.5A Maximum Output Current Unique Step-up/down Operation (BuckBoost Mode) Wide 4.5V to 55V Operating Input Range for Step-Down Applications (Buck Mode) 0.28Ω Internal Power MOSFET Switch Adjustable Switching Frequency Analog and PWM Dimming 0.198V Reference Voltage 5μA Shutdown Mode No Minimum LED Required Stable with Low ESR Output Ceramic Capacitors Cycle-by-Cycle Over Current Protection Thermal Shutdown Protection Open Strings Protection Output Short Circuit Protection Available in 10-Pin 3x3 QFN Package and 14-Pin SOIC14 Package • • • • • • • • • • • • • The MP2483 requires a minimum number of readily available standard external components and is available in 10-pin 3mm x 3mm QFN package and 14-pin SOIC14 packages. APPLICATIONS • • • • • • General LED Illuminations LCD Backlight Panels Handheld Computers Automotive Internal Lighting Portable Multimedia Players Portable GPS Devices All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION VIN 4.5V