MP4050

NOT RECOMMENDED FOR NEW DESIGNS

Non-Isolated, High Brightness LED Driver

ALTERNATIVE PART

NRFND Datasheet

MP4050 continues to be in production for existing customers. Please consider this alternative for new designs:

MP4050A

Non-Isolated, High Brightness LED Driver with Enhanced Thermal Feature

Features & Benefits

Constant Current LED Driver
Integrated 500V/8Ω MOSFET
Low VCC Operating Current
Maximum Frequency Limit
Audible Noise Restrain
Internal High-Voltage Current Source
Internal 200ns Leading Edge Blanking
Integrated Thermal Current Foldback
Thermal Shutdown (Auto Re-Start with Hysteresis)
VCC Under-Voltage Lockout with Hysteresis
Open LED Protection
Short-Circuit Protection
Auto-Restart Function
Available in TSOT23-5/SOIC-8 Packages

… and many more!

概要

The MP4050 is a constant current LED driver integrated with an internal 500V MOSFET. It is specifically designed for energy efficient and low cost LED bulk replacement applications. MP4050 is designed to drive high-brightness LEDs from an 85VAC to 265VAC line. It is also useable under DC input voltage. The accurate output LED current is achieved by an averaging internal current feedback loop. Constant LED current is delivered quietly by switching the internal MOSFET at a frequency regulated above 22kHz. MP4050 can be directly powered by the high input voltage. An internal high voltage current source regulates supply voltage without external circuitry. MP4050 features various protections like Thermal Shutdown (TSD), VCC Under Voltage Lockout (UVLO), Open Lamp Protection and Short Lamp Protection. All of there features make MP4050 an ideal solution for simple, off-line and non-isolated LED applications. MP4050 is available in the TSOT23-5 and SOIC8 packages.