The NCP1396 A/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 necessary, 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 dead time also helps lower the shoot-through current contribution as the switching frequency increases.

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 ms.
Startup Sequence via an Adjustable Soft--start
Brownout 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 mA
1 A / 0.5 A Peak Current Sink / Source Drive Capability
Common Collector Optocoupler Connection for Easier ORing
Internal Temperature Shutdown
B Version features 10 V VCC Startup Threshold
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