The EV4056-K-00A Evaluation Board is designed to demonstrate the capabilities of MP4056. The MP4056 is a non-isolated, TRIAC dimmable LED controller with active PFC and excellent dimming performance.
It works in boundary conduction mode for reducing the MOSFET and Diode switching losses. Its adaptive dimmer type detection and phase-cut-based dimming control can achieve good dimmer compatibility and deep dimming range.
The EV4056-K-00A is typically designed for driving a 16W TRIAC dimmable LED bulb with 48VTYP, 340mA LED load from 198VAC to 265VAC, 50Hz.
The EV4056-K-00A has a cost effective BOM and excellent efficiency. It meets IEC61547 surge immunity, IEC61000-3-2 Class C harmonics and EN55015 conducted EMI requirements. It has multi-protection function as over-voltage protection; winding short circuit protection; output short-circuit protection; ZCD pin short protection; over- temperature protection etc.
- Adaptive Dimmer Type Detection and Phase-Cut-Based Dimming Control
- Good Dimmer Compatibility
- Fast Start-Up without Perceptible Delay
- Accurate Line & Load Regulation
- High Power Factor
- High Efficiency
- Operates in Boundary Conduction Mode
- Cycle-by-Cycle Current Limit
- Winding Short-Circuit Protection
- Output Over-Voltage Protection
- Output Short-Circuit Protection
- ZCD Pin Short Protection
- Over-Temperature Protection
TRIAC Dimmable, Non-isolated, Offline LED Controller with Active PFC
The MP4056 is a non-isolated, TRIAC-dimmable, offline LED controller with active PFC. It outputs an accurate LED current for an non-isolated lighting application with a single-stage converter. The MP4056 implements power-factor correction and works in boundary-conduction mode to reduce MOSFET switching losses. The adaptive dimmer type detection and phase-cut-based dimming control achieves good dimmer compatibility and deep dimming range. The MP4056 has an integrated charging circuit at the supply pin for fast start-up without a perceptible delay. With the unique control of DIM, the MP4056 supports color temperature and brightness control for warm sunset dimming application. The MP4056 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. All fault protections feature auto-restart. The MP4056 is available in SOIC-8/MSOP-10/SOIC-14 package.