MP4425M中文资料High Efficiency 1.5A, 36V, 2.2MHz Synchronous Step Down LED Driver数据手册MPS规格书

描述 Description

The MP4425M is a high-frequency, synchronous, rectified, step-down, switch-mode white LED driver with built-in power MOSFETs. It offers a very compact solution to achieve a 1.5A continuous output current with excellent load and line regulation over a wide input supply range. The MP4425M has synchronous mode operation to get high efficiency.Current-mode operation provides fast transient response and eases loop stabilization.Full protection features include over-current protection (OCP) and thermal shut down (TSD). The MP4425M requires a minimal number of readily-available standard external components, and is available in a space-saving QFN-13 (2.5mmx3mm) package.

特性 Features

• EMI Reduction Technique
• Wide 4V-to-36V Operating Input Range
• 85mO/50mO Low RDS(ON) Internal Power MOSFETs
• High-Efficiency Synchronous Mode Operation
• Default 2.2MHz Switching Frequency
• PWM Dimming (Min 100Hz Dimming Frequency)
• Forced CCM Mode
• 0.2V Reference Voltage
• Internal Soft-Start
• Fault Indication for LED Short, Open andThermal Shutdown
• Over-Current Protection (OCP) with Valley-Current Detection
• Thermal Shutdown
• Available in a QFN-13 (2.5mmx3mm) Package
• CISPR25 Class 5 Compliant