onsemi | NCP1396ADR2G

The NCP1396A High Performance Resonant Mode Controller featuring High-Voltage Drivers.

The NCP1396A/B offers everything needed to build a reliable and rugged resonant mode power supply. Its unique architecture includes a 500 kHz Voltage Controlled Oscillator whose control mode brings flexibility when an ORing function is a necessity, e.g. in multiple feedback paths implementations. Thanks to its proprietary high−voltage technology, the controller welcomes a bootstrapped MOSFET driver for half−bridge applications accepting bulk voltages up to 600 V. Protections featuring various reaction times, e.g. immediate shutdown or timer−based event, brown−out, broken opto−coupler detection etc., contribute to a safer converter design, without engendering additional circuitry complexity. An adjustable deadtime also helps lowering the shoot−through current contribution as the switching frequency increases.

Key Features:

• High−frequency Operation from 50 kHz up to 500 kHz
• 600 V High−Voltage Floating Driver
• Selectable Minimum Switching Frequency with ±3% Accuracy
• Adjustable Deadtime from 100 ns to 2 µs
• Startup Sequence via an 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
• Enable Input for Immediate Event Reaction or Simple ON/OFF Control
• VCC Operation up to 20 V
• Low Startup Current of 300 µA
• 1 A / 0.5 A Peak Current Sink / Source Drive Capability
• Common Collector Optocoupler Connection for Easier ORing
• Internal Temperature Shutdown
• These are Pb−Free Devices

Applications:

• Flat Panel Display Power Converters
• High Power AC/DC Adapters for Notebooks
• Industrial and Medical Power Sources
• Offline Battery Chargers