NCP1395B Datasheet | onsemi

NCP1395A/B High Performance Resonant Mode Controller The NCP1395A/B offers everything needed to build a reliable and rugged resonant mode power supply. Its unique architecture includes a 1.0 MHz Voltage Controller Oscillator whose control mode brings flexibility when an ORing function is a necessity, e.g. in multiple feedback paths implementations. Protections featuring various reaction times, e.g. immediate shutdown or timer- based event, brown- out, broken optocoupler detection etc., contribute to a safer converter design, without engendering additional circuitry plexity. An adjustable deadtime also helps lowering the shoot- through current contribution as the switching frequency increases. Finally, an onboard operational transconductance amplifier allows for various configurations, including constant output current working mode or traditional voltage regulation. Features - High Frequency Operation from 50 k Hz up to 1.0 MHz - Selectable Minimum Switching Frequency with "3% Accuracy - Adjustable Deadtime from 150 ns to 1.0 ms - Startup Sequence via an Adjustable Soft- Start - Brown- Out Protection for a Simpler PFC Association - Latched Input for Severe Fault Conditions, e.g. Overtemperature or OVP - Timer- Based Input with Auto- Recovery Operation for Delayed Event Reaction - Enable Input for Immediate Event Reaction or Simple ON/OFF Control - Operational Transconductance Amplifier (OTA) for Multiple Feedback Loops - VCC Operation up to 20 V - Low Startup Current of 300 m A Max - mon Collector Optocoupler Connection - Internal Temperature Shutdown - B Version Features 10 V VCC Startup Threshold for Auxiliary Supply Usage - Easy No- Load Operation and Low Standby Power Due to Programmable Skip- Cycle - These are Pb- Free Devices Typical Applications - LCD/Plasma TV...