Nexperia Flyback controller ICs

Nexperia AC/DC controller series of products support different circuit topologies such as flyback and boost Power Factor Correction (PFC). Through continuous innovation, Nexperia power IC solutions provide lower standby power and system costs, higher conversion efficiency, power density and stronger reliability in AC/DC power supplies. Nexperia can support a turn-key solution when combined with Nexperia Power Delivery (PD) controllers, GaN High Electron Mobility Transistor (HEMT), MOSFETs, Diodes and ESD protection components. The NEX806 device series (NEX806xx) are high frequency quasi-resonant PWM controllers implemented with peak current mode control. As the load changes, the NEX806 device automatically switches mode between Quasi-Resonant (QR) mode, Discontinuous Conduction Mode (DCM) and Pulse Frequency Modulation (PFM) mode to maintain a high efficiency across the entire load range. To achieve an ultralow standby power, Burst Mode (BM) is implemented in very light load or no-load condition. The wide 10 V to 83 V VCC range makes NEX806xx devices suitable for wide output voltage range applications, such as USB PD/PPS which require an output range between 3.3 V to 21 V. The NEX806xx offers comprehensive protection including output OV/UV, VCC OV/UV, OPP, OCP, line voltage BROWN-IN/OUT, secondary SR short, CS open/short, internal/external OTP, etc. Furthermore, spread spectrum and smart driving functions can minimize noise and improve EMI performance. The NEX806xx device series comes in a cost-effective TSOT23-6 package.

Key features

• Low standby power
• Pulse Frequency Modulation (PFM ) mode to maintain a high efficiency in light load
• Direct MOSFET or GaN High Electron Mobility Transistor (HEMT) driver
• High reliability
• Perfect protection function
• Reduced BOM components

Applications

• Power Delivery (PD) chargers and adapter
• Wall sockets, strip sockets
• Industrial power and auxiliary power
• AC/DC converters