Monolithic Power Systems (MPS) MP9989 CCM/DCM Flyback Ideal Diodes are fast turn-off and intelligent rectifiers for flyback converters that integrate a 100V MOSFET. These diodes do not require auxiliary winding because they generate their own supply voltage, making them ideal for charger applications with a low output voltage requirement and other adapter applications with high-side set-up. The MP9989 diodes consist of an internal slew rate ringing detection circuitry that prevents it from falsely turning on during discontinuous conduction mode (DCM) operations. MPS MP9989 CCM/DCM Flyback Ideal Diodes feature Energy Star compatibility, 110µA quiescent current, and support DCM, CCM, and quasi-resonant operations. The negative gate-to-source (VGS) voltage boosts the turn-off speed and improves efficiency. Applications include laptop adapters, QC and USB PD chargers, and high-efficiency flyback converters.
