onsemi NCP4303B
The NCP4303A/B is a full featured controller and driver tailored to control synchronous rectification circuitry in switch mode power supplies. The combination of externally adjustable minimum on and off times helps to fight the ringing induced by the PCB layout and other parasitic elements. The extremely low turn off delay time, high sink current capability of the driver and automatic package parasitic inductance compensation system allow to maximize synchronous rectification MOSFET conduction time that enables further increase of SMPS efficiency.| Part No. | NCP4303B |
|---|---|
| Datasheet | NCP4303B Download |
| Manufacturer |  onsemi |
| Description | Secondary Side Synchronous Rectification Driver |
| Buy | Stock & Price |
FEATURES
● Self-Contained Control of Synchronous Rectifier in CCM, DCM, and QR FlybackAPPLICATIONS
● Precise True Secondary Zero Current Detection with Adjustable Threshold● Automatic Parasitic Inductance Compensation Input
● Typically 40 ns Turn off Delay from Current Sense Input to Driver
● Zero Current Detection Pin Capability up to 200 V
● Optional Ultrafast Trigger Interface for Further Improved Performance in
APPLICATIONS
that Work in Deep CCM● Disable Input to Enter Standby or Low Consumption Mode
● Adjustable Minimum On Time Independent of VCC Level
● Adjustable Minimum Off Time Independent of VCC Level
● 5 A/2.5 A Peak Current Sink/Source Drive Capability
● Operating Voltage Range up to 30 V
● Gate Drive Clamp of Either 12 V (NCP4303A) or 6 V (NCP4303B)
● Low Startup and Standby Current Consumption
● Maximum Frequency of Operation up to 500 kHz
● SOIC−8 Package
● These are Pb-Free Devices Typical
APPLICATIONS
● Notebook Adapters● High Power Density AC/DC Power Supplies
● G...
