NCP1377BDR2G NCP1377 PWM Current−Mode Controller

ON NCP1377BDR2G NCP1377 PWM Current−Mode Controller for Free−Running Quasi−Resonant Operation

PDF Datasheet：

Features

• Free−Running Borderline/Critical Mode Quasi−Resonant Operation

• Latched Overvoltage Protection

• Auto−Recovery Short−Circuit Protection Via UVLO Crossover

• External Latch Triggering, e.g. Via Overtemperature Signal

• Current−Mode with Adjustable Skip Cycle Capability

• Internal 1.0 ms Soft−Start

• Internal Temperature Shutdown

• Internal Leading Edge Blanking

• 500 mA Peak Current Source/Sink Capability

• Under Voltage Lockout Level of 12.5 V (On) and 7.5 V (Min)

• Direct Optocoupler Connection

• SPICE Models Available for TRANsient Analysis

• Internal Minimum TOFF

• Pb−Free Packages are Available

Typical Applications

• AC−DC Adapters for Notebooks, etc.

• Offline Battery Chargers

• Consumer Electronics (DVD Players, Set−Top Boxes, TVs, etc.)

• Auxiliary Power Supplies (USB, Appliances, TVs, etc.)

 Typical Application Schematic

Picture

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