SY23510 Datasheet | Silergy

CCM+QR Mode SSR Flyback Controller General Description SY23510 is a peak current mode SSR flyback controller that bine CCM and QR mode together to minimize transformer size and achieve high efficiency. Under low line and heavy load condition, SY23510 works under CCM, while under high line or medium load, it works under QR mode (valley switching). SY23510 adopts frequency fold back control when load decreases to achieve high average efficiency. When load decreases to very light level, SY23510 will enter burst mode and switching frequency is fixed to 25k Hz to avoid audible noise. SY23510 also provides prehensive and reliable protections including brownout protection, output OVP, external OTP, OLP, VCC OVP, internal OTP, etc. SY23510 is available with pact SOT23-6 package. Features - Rated Switching Frequency: 65k Hz - CCM+QR bined Operating Mode - Frequency Fold Back and Burst Mode Control - Minimum Switching Frequency Limited to 25k Hz - FSW Modulation to Reduce EMI Noise - Programmable Brownout Protection by ZCS Pin - Programmable Output OVP by ZCS Pin - Programmable External OTP by CS Pin - OLP, VCC OVP, Internal OTP - Secondary Diode Short Circuit Protection - OCP pensation Over Universal Input Range - Low Start up Current: <4u A - Gate Drive Capability: 210m A/420m A(source/sink) - Internal Soft Start Process - Ro HS pliant and Halogen Free - pact Package: SOT23-6 Typical Applications Applications - AC/DC Power Supply - Note Book Adapter - LCD TV - Auxiliary Power Supply VO+ GND GATE P...