DESCRIPTION

SP6035A is a high performance and tightly integrated secondary side synchronous rectifying converter for switching mode power supply system. It combines a low Rdson N-channel MOSFET to emulate the traditional diode rectifier at the secondary side of Flyback converter, The fundamental of SP6035A synchronous rectifying (SR) converter is based on our U.S. patented methods that utilize the principle of “prediction” logic circuit. The IC deliberates previous cycle timing to control the SR in present cycle by “predictive” algorithm that makes adjustments to the turn-off time, in order to achieve maximum efficiency and avoid cross-conduction at the same time. The SP6035A is capable to adapt in almost all existing Resonance converters with no adjustment required.

APPLICATIONS

• Switching Mode Power Supply (CCM&DCM&QR)

• Storage area network power supplies

• Telecommunication converters

• Embedded systems

• Industrial & commercial systems using high current processors

• Power converters to meet Lot 6 requirement

FEATURES

• Offers efficiency improvement over Schottky Diode.

• Low Standby Power to meet DOE Lot 6 requirement.

• Secondary-side synchronous rectifier optimized

for switching power system.

• Build-in 45V SR MOSFET with low Rdson

• Operating frequency up to 300 KHz.

• Synchronize to transformer primary voltage waveform.

• Internal over voltage protection