MP24830数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The MP24830 is a 90V white LED driver suitable for either step-down or inverting step up/down applications. It supports a wide input range with excellent load and line regulation. Its programmable current limit provides customized applications with a wide power range. Current mode operation provides a fast transient response and eases loop stabilization. Fault condition protection includes thermal shutdown, cycle?y?ycle peak-current limiting, open-string protection, and output short-circuit protection.?The MP24830 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 MP24830 requires a minimal number of readily-available external components. It is available in 14-pin SOIC and QFN packages.

特性 Features

● Programmable Maximum Output Current
● Unique Step-Up/Down Operation (Buck-Boost Mode)
● Wide 4.5V-to-90V Operating Input Range for Step-Down Applications (Buck Mode)
● Adjustable Switching Frequency
● Analog and PWM Dimming
● 0.2V Reference Voltage
● 10? Shutdown Mode
● No Minimum LED Quantity Required
● Stable with Low ESR Output Ceramic Capacitors
● Cycle-by-Cycle Over-Current Protection
● Thermal Shutdown Protection
● Open-String Protection
● Output Short-Circuit Protection
● Available in 14-Pin SOIC and QFN Packages

简介

MP24830属于集成电路（IC）的LED驱动器。由制造生产的MP24830LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。