DATASHEET

The NCP1397 is a high performance controller that can be utilized in half bridge resonant topologies such as series resonant, parallel resonant and LLC resonant converters. It integrates 600 V gate drivers, simplifying layout and reducing external component count. With its unique architecture, including a 500 kHz Voltage Controlled Oscillator whose control mode permits flexibility when an ORing function is required, the NCP1397 delivers everything needed to build a reliable and rugged resonant mode power supply. The NCP1397 provides a suite of protection features with configurable settings to optimize any application. These include: auto−recovery or fault latch−off, brown−out, open optocoupler, soft−start and short−circuit protection. Deadtime is also adjustable to overcome shoot through current. Features • High−Frequency Operation from 50 kHz up to 500 kHz • 600 V High−Voltage Floating Driver • Adjustable Minimum Switching Frequency with ±3% Accuracy • Adjustable Deadtime

SSC9512S SMPS IC

SSC9512S SMPS IC ■ General Descriptions The SSC9510 series products are controller ICs, incorporating a floating drive circuit for half-bridge type resonance. The product achieves high efficiency and low noise power supply systems by the ZVS and ZCS. The product is recommended for high-efficiency small and standardized power supplies because of easy circuit designs with few external components. Features Soft-Switched Multi-Resonant Zero Current Switch (SMZ) The zero-current switching (ZSC) and zero-voltage switching (ZVS) of half-bridge type resonance achieve the high efficiency and low noise systems. Automatic Dead Time Adjustment Function for Wide Resonant Conditions Burst-Oscillation Function The function enables the stable output control at no load to light load conditions and improves the efficiency. Soft-Start Function Brown-In / Brown-Out Function The function enables the oscillation start /stop by externally rated input voltage and makes protections at low

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