Monolithic Power Systems MPQ2483DQ
The MPQ2483 is a 55V, LED driver suitable for either step-down or inverting step-up/down applications. It achieves 2.5A peak current over a wide input supply range with excellent load and line regulation. The MPQ2483 incorporates both DC and PWM dimming onto a single control pin.DESCRIPTION
Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes thermal shutdown, cycle-by-cycle peak current limiting, output over voltage protection, open strings protection and output short circuit protection. The separate input reference ground pin allows for direct enable and/or dimming control for a positive to negative power conversion. The MPQ2483 requires a minimum number of readily available standard external components and is available in a 10-pin 3mm x 3mm QFN and SOIC 14-pin packages. TYPICAL APPLICATION MPQ2483 Industrial/Automotive-Grade 55V, 2.5A Programmable Frequency LED Driver Avaiable in AEC-Q100FEATURES
● 2.5A Maximum Peak Current● Buck or Buck-Boost Modes
● Wide 4.5V to 55V Operating Input Range
● 0.28Ω Internal Power MOSFET Switch
● Analog and PWM Dimming
● 0.198V Reference Voltage
● 5μA Shutdown Mode
● Stable with Low ESR Capacitors
● Cycle-by-Cycle Over Current Protection
● Thermal Shutdown...