NCP1393BDR2G

The NCP1393B is a self−oscillating high voltage MOSFET driver primarily tailored for the applications using half−bridge topology. Due to its proprietary high−voltage technology, the driver accepts bulk voltages up to 600 V. Operating frequency of the driver can be adjusted from 25 kHz to 250 kHz using a single resistor. Adjustable brown−out protection assures correct bulk voltage operating range. An internal 100 ms PFC delay timer guarantees that the main downstream converter will be turned on in the time the bulk voltage is fully stabilized. The device provides fixed dead−time which helps to lower the shoot−through current.

Applications

• Flat Panel Display Power Converters
• Low Cost Resonant SMPS
• High Power AC/DC Adapters for Notebooks
• Offline Battery Chargers
• Lamp Ballasts

Key features

• Wide Operating Frequency Range − from 25 kHz to 250 kHz
• Minimum Frequency Adjust Accuracy ± 3%
• Fixed Dead Time − 0.6 s
• Adjustable Brown−out Protection for a Simple PFC Association
• 100 ms PFC Delay Timer
• Latched Input for Severe Fault Conditions, e.g. Overtemperature or OVP
• Internal 16 V VCC Clamp
• Low Startup Current of 50 μA Maximum
• 1 A / 0.5 A Peak Current Sink / Source Drive Capability
• Operation up to 600 V Bulk Voltage
• Internal Temperature Shutdown
• SOIC−8 Package
• These are Pb −Free Devices