NCP1397A

NCP1397A/B, NCV1397A/B High Performance Resonant Mode Controller with Integrated High-Voltage Drivers 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 from 100 ns to 2 ms. Startup Sequence Via an Externally Adjustable Soft−Start Brown−Out Protection for a Simpler PFC Association Latched Input for Severe Fault Conditions, e.g. Over Temperature or OVP Timer−Based Input with Auto−Recovery Operation for Delayed Event Reaction Latched Overcurrent Protection Disable Input for Immediate Event Reaction or Simple ON/OFF Control VCC Operation up to ...