MP4056GS-Z

The MP4056 is a non-isolated, TRIACdimmable, offline LED controller with active PFC. It outputs an accurate LED current for an non-isolated lighting application with a singlestage converter. The MP4056GS-Z implements power-factor correction and works in boundary-conduction mode to reduce MOSFET switching losses. The adaptive dimmer type detection and phasecut-based dimming control achieves good dimmer compatibility and deep dimming range. The MP4056GS-Z has an integrated charging circuit at the supply pin for fast start-up without a perceptible delay. With the unique control of DIM, the MP4056GS-Z supports color temperature and brightness control for warm sunset dimming application. The MP4056GS-Z has multiple protections that greatly enhance system reliability and safety, including output over-voltage protection, output short-circuit protection, over-current protection, programmable thermal fold-back (MSOP10/SOIC14), ZCD pin short circuit protection, supply-pin under-voltage lockout, and over-temperature protection.

• Adaptive Dimmer Type Detection and Phase-Cut-Based Dimming Control
• Good Dimmer Compatibility and Deep Dimming Range
• PWM Input Analog Dimming
• Fast Start-Up without Perceptible Delay
• Programmable Current Fold-back to Prolong the LED lifetime (NTC)
• Color Temperature and Brightness Control for Warm Sunset Dimming application
• Accurate Line & Load Regulation
• High Power Factor
• Operates in Boundary Conduction Mode
• Cycle-by-Cycle Current Limit
• Over-current Protection
• Output Over-Voltage Protection
• Output Short-Circuit Protection
• ZCD Pin Short-Circuit Protection
• Over-Temperature Protection
• Available in SOIC-8/MSOP-10/SOIC-14 Package