NCP4304ADR2G

The NCP4A/304B is an exemplary controller and driver for synchronous rectification circuitry in switch mode power supplies. Its versatility allows it to be used in various topologies such as flyback, forward, and Half Bridge Resonant LLC. This controller's combination of externally adjustable minimum on and off times helps to combat ringing induced by the PCB layout and other parasitic elements, ensuring a reliable and noise-free operation of the SR system. Moreover, its extremely low turn-off delay time, high sink current capability of the driver, and automatic package parasitic inductance compensation system allow for maximizing synchronous rectification MOSFET conduction time, which enables further increase of SMPS efficiency

Key Features

• Precise True Secondary Zero Current Detection with Adjustable Threshold
• Automatic Parasitic Inductance Compensation
• Typically 40 ns Turn off Delay from Current Sense Input to Driver
• Zero Current Detection Pin Capability up to 200 V
• Optional Ultrafast Trigger Input
• Disable Input
• Adjustable Minimum ON Time and Minimum OFF Time
• 5 A/2.5 A Peak Current Sink/Source Drive Capability
• Operating Voltage Range up to 30V

Application

• High Power Density AC/DC Power Supplies