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 rivers, 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.
●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 s.
●•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
●•VCCOperation up to 20 V
●•Low Startup Current of 300 A
●•1 A / 0.5 A Peak Current Sink / Source Drive Capability
●•Common Collector Optocoupler Connection for Easier ORing
●•Optional Common Emitter Optocoupler Connection
●•Internal Temperature Shutdown
●•These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant
