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onsemi NCP4303ADR2GRoHS

Manufacturer
onsemi
MPN
NCP4303ADR2G
LCSC Part #
C114263
Packaging
SOIC-8
Customer #
Key Attributes
500kHz SOIC-8 Power Supply Controllers, Monitors RoHS
Datasheetpdf icononsemi NCP4303ADR2G
In-Stock: 1,480
1,480 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 0.9977$ 1.00
10+$ 0.8073$ 8.07
30+$ 0.7129$ 21.39
100+$ 0.6185$ 61.85
500+$ 0.5615$ 280.75
1,000+$ 0.5323$ 532.30
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Power Supply Controllers, Monitors
Manufactureronsemi
PackagingSOIC-8
Output Current-
Pd - Power Dissipation-
Frequency - Switching500kHz
FeaturesSynchronous rectification drive;Adjustable soft-start;Inductor compensation
Output Voltage-
Duty Cycle(Max)-
Operating Temperature-40℃~+125℃
Feedback System-
Working ModeCCM;DCM;QR
Operating Voltage9.5V~30V
TopologyFlyback;Forward;Half-Bridge
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The NCP4303A/B is a full featured controller and driver tailored to control synchronous rectification circuitry in switch mode power supplies. Thanks to its versatility, it can be used in various topologies such as flyback, forward and Half Bridge Resonant LLC. The combination of externally adjustable minimum on and off times helps to fight the ringing induced by the PCB layout and other parasitic elements. Therefore, a reliable and noise less operation of the SR system is insured. 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. Finally, a wide operating VCC range combined with two versions of driver voltage clamp eases implementation of the SR system in 24 V output applications.

Features

AI Translation
  • Self-Contained Control of Synchronous Rectifier in CCM, DCM, and QR Flyback Applications
  • 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

Applications

AI Translation
  • Notebook Adapters
  • High Power Density AC/DC Power Supplies
  • Gaming Consoles
  • All SMPS with High Efficiency Requirements