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onsemi NCP4390DR2GRoHS

Manufacturer
onsemi
MPN
NCP4390DR2G
LCSC Part #
C904508
Packaging
SOIC-16
Customer #
Key Attributes
Advanced Secondary Side LLC Resonant Converter Controller with Synchronous Rectifier Control
Datasheetpdf icononsemi NCP4390DR2G
In-Stock: 33
33 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 3.7173$ 3.72
10+$ 3.177$ 31.77
30+$ 2.8564$ 85.69
100+$ 2.5325$ 253.25
500+$ 2.3828$ 1191.40
1,000+$ 2.316$ 2316.00
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-16
Output TypeAdjustable
Synchronous RectifierYes
Frequency - Switching39kHz~690kHz
Number of Outputs1
FeaturesAdjustable soft-start;Light load efficient mode;Overcurrent Protection
Switch Tube (Built-In/External)External
Quiescent Current2.8mA
Operating Temperature-40℃~+125℃@(TJ)
Operating Voltage0V~18V
TopologyHalf-Bridge
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The NCP4390 is an advanced Pulse Frequency Modulated (PFM) controller for LLC resonant converters with Synchronous Rectification (SR) that offers best in class efficiency for isolated DC/DC converters. It employs a current mode control technique based on a charge control, where the triangular waveform from the oscillator is combined with the integrated switch current information to determine the switching frequency. This provides a better control−to−output transfer function of the power stage simplifying the feedback loop design while allowing true input power limit capability. Closed−loop soft−start prevents saturation of the error amplifier and allows monotonic rising of the output voltage regardless of load condition. A dual edge tracking adaptive dead time control minimizes the body diode conduction time thus maximizing efficiency.

Features

AI Translation
  • Secondary Side PFM Controller for LLC Resonant Converter with Synchronous Rectifier Control
  • Charge Current Control for Better Transient Response and Easy Feedback Loop Design
  • Adaptive Synchronous Rectification Control with Dual Edge Tracking
  • Closed Loop Soft−Start for Monotonic Rising Output
  • Wide Operating Frequency (39 kHz~690 kHz)
  • Green Functions to Improve Light−Load Efficiency
    • Symmetric PWM Control at Light−Load to Limit the Switching Frequency while Reducing Switching Losses
    • Disabling SR at Light−Load Condition
  • Protection Functions with Auto−Restart
    • Over−Current Protection (OCP)
    • Output Short Protection (OSP)
    • NON Zero−Voltage Switching Prevention (NZS) by Compensation Cutback (Frequency Shift)
    • Power Limit by Compensation Cutback (Frequency Shift)
    • Overload Protection (OLP) with Programmable Shutdown Delay Time
  • Programmable Dead Times for Primary Side Switches and Secondar Side Synchronous Rectifiers
  • VDD Under−Voltage Lockout (UVLO)
  • Wide Operating Temperature Range -40°C to +125°C
  • This Device is Pb−Free, Halogen Free/BFR Free and is RoHS Compliant

Applications

AI Translation
  • Automotive On Board Charger
  • Intelligent 100 W - 2 kW+ Off−Line & Industrial Power Supplies