描述

The DIO82612 is a high frequency synchronous rectifier controller, specifically designed for standard and logic-level NMOSFET and GaN power devices with minimal external components targeting at high frequency flyback applications. The drain to source (VDS) sensing control scheme allows DIO82612 to work with multiple topologies, such as ACF/QR/DCM/CCM flyback and LLC, etc. The DIO82612 offers different minimum on-times to provide additional noise immunity. Robust operation in continuous conduction mode (CCM) is further enhanced with proportional gate-drive. Efficiency and noise immunity are enhanced with adaptive minimum off-time. The DIO82612 has multiple features that improve efficiency. The fast comparator with short propagation delays reduces switching losses. The 9.5 V drive clamp reduces MOSFET driving losses. Multiple standby modes further decreases standby power. This chip adopts special design to achieve reliable protection for safety requirement.