onsemi FLS2100XS

The FLS-XS series of general lighting power controllers incorporate highly integrated power switches, suitable for medium to high-power lumen applications. They feature all the necessary characteristics for building reliable and high-quality half-bridge resonant converters, which can simplify the design, enhance productivity, and improve performance. These controllers combine power MOSFETs with fast-recovery body diodes, high-side gate drive circuits, precise current control oscillators, frequency limiting circuits, soft-start, and built-in protection functions. The high-side gate drive circuit has a common-mode noise cancellation function, ensuring stable operation through excellent noise immunity. The fast-recovery body diodes of the MOSFETs improve reliability, prevent abnormal operating conditions, and minimize the effects of reverse recovery. Using zero-voltage switching (ZVS) can significantly reduce switching losses and notably improve efficiency. ZVS also significantly reduces switching noise, allowing the use of small-sized electromagnetic interference (EMI) filters. They can be applied to resonant converter topologies, such as series resonant, parallel resonant, and LLC resonant converters.

• Variable frequency control with 50% duty cycle for half-bridge resonant converter topology
• High efficiency via ZVS
• Internal UniFET²M with fast recovery body diode
• Fixed dead time (350 ns) optimized for MOSFET
• Operating frequency up to 300 kHz
• Auto-restart operation for all protection functions via external LVCC
• Protection features: OVP, OCP, AOCP, internal TSD
• These are Pb-Free Devices

• General-purpose LED lighting power supplies
• Industrial, commercial, and residential LED lighting fixtures
• Outdoor lighting: street, driveway, parking lot, architectural, and decorative LED lighting fixtures