The MP4655 is a pure, single-stage, LLC, LED current and system voltage controller for LED backlighting, especially in larger TVs, and is located on the secondary side. The MP4655 uses an LLC power stage and an extra N-channel MOSFET to regulate both the LED current and the system supply voltage. The MP4655 is powered by input supplies ranging from 9V to 35V that output two 180 degree phase shifted driving signals for the external LLC power stages. Its enhanced 12V gate driver provides sufficient driving capability and can drive the external LLC MOSFETs directly through an external gate-driving transformer. The MP4655 also provides a direct driving signal to control the extra N-channel MOSFET and regulate the system supply voltage. The MP4655 incorporates both PWM dimming and analog dimming for the LED current. A driving signal is output to directly drive the dimming MOSFET, which helps achieve fast and high-contrast ratio PWM dimming. The analog dimming can be achieved through a DC signal on ADIM or a pulse signal on ADIMP. The MP4655 employs smart protection methods to protect the LED driver stage and system power stage in the event that a fault occurs, increasing system reliability. Full protection features for the LED include open LED protection, short LED protection, over-LED current protection, feedback open loop protection, and protection for any point of the LED string shorting to ground. Full protection features for the system supply voltage stage include over-vol
YG GROUP (YUGUANG INTERNATIONAL(HK)CO.,LTD) supports reliable sourcing through quality controls and compliance documentation. Please confirm product requirements, applicable certifications and supporting documents before ordering.
MP4655 is an authentic electronic component manufactured by Monolithic Power Systems, categorized under Driver ICs. It is supplied in the standard manufacturer-specified package footprint, providing industry-standard mechanical dimensions and terminal configurations for board-level assembly. Full pinout configurations, physical footprint drawings, and rated operating tolerances are documented in the official MP4655 datasheet above.
Electronic component spot-market pricing for MP4655 fluctuates based on real-time global availability, production date codes, minimum order quantities (MOQ), and packaging formats (e.g., Reel, Tube, Tray). Using an RFQ ensures you receive accurate, real-time volume pricing tied to verified, traceable inventory rather than stale catalog estimates.
Lead times for MP4655 depend on whether stock is dispatched from our central hub or regional franchise partners. Ready-to-ship inventory typically leaves the warehouse within 1–3 business days following quality inspection, while factory-direct or back-ordered allocations are confirmed with an estimated ship date upon RFQ reply.
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