MP24183

MP24183

1A, 55V, Programmable Frequency LED Driver with DC and PWM Dimming Control

ALTERNATIVE PART

Datasheet

MP24183 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2483

2.5A, 55V, Programmable Frequency LED Driver

Features & Benefits

2.5A Maximum Output Current
Unique Step-up/down Operation (Buck-Boost Mode)
Wide 4.5V to 55V Operating Input Range for Step-Down Applications (Buck Mode)
0.28O 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

… and many more!

Description

The MP24183 is a 55V, 1A, white LED driver suitable for either step-down or inverting step up/down applications. It achieves 1A 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, cyclebycycle peak current limiting, input over voltage protection, open strings protection and output short circuit protection. The MP24183 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. The MP24183 requires a minimum number of readily available standard external components and is available in a 10-pin 3mm x 3mm QFN package.