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OB OB2301WCPA

Hersteller
OBAsian Brands
Herst.-Teilenr.
OB2301WCPA
LCSC-Nr.
C138817
Verp.
SOP-8
Kundennummer
Hauptmerkm.
200kHz 50V 4V~5.5V Flyback SOP-8 AC DC Converters, Offline Switchers
DatenblattOB OB2301WCPA
Nicht vorrätig
Benachrichtigen
Minimum: 1Vielfaches: 1Verkaufseinheit: Piece
Zur BOM-Liste hinzufügen
Stk.E-Preis(Nur als Referenz)Gesamtbetrag
1+$ 0.5325$ 0.53
10+$ 0.4269$ 4.27
30+$ 0.381$ 11.43
100+$ 0.3244$ 32.44
500+$ 0.2999$ 149.95
1,000+$ 0.2846$ 284.60
2,000+$ 0.2816$ 563.20
4,000+$ 0.28$ 1120.00
Standardgehäuse4000/Full Reel
Besserer Preis bei größerer Menge?
$

Produktspezifikationen

Alle
TypBeschreibung
KategorieIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
HerstellerOB
Verp.SOP-8
Operating Temperature-40℃~+85℃
Output Current-
Frequency - Switching200kHz
Pd - Power Dissipation-
Voltage - Breakdown50V
Voltage - Supply4V~5.5V
TopologyFlyback
FeaturesSynchronous rectification drive;Under-voltage lockout;Constant Current Mode (CC);Constant Voltage (CV);Under Voltage Protection
Output Voltage-
Duty Cycle(Max)-
Feedback System-
Working ModeDCM;QR
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Beschreibung

KI-Übersetzung

OB2301W is a high performance and tightly integrated secondary side synchronous rectifier for switch mode power supply system. It combines a much lower voltage drop N-channel MOSFET to emulate the traditional diode rectifier at the secondary side of Flyback converter, which can reduce heat dissipation, increases output current capability and efficiency and simplify thermal design. OB2301W can support low system output voltage down to 2V at constant current mode. It is suitable for multiple mode applications including discontinuous conduction mode and quasi-resonant mode. With its versatility and optimization, OB2301W can be used in various switch mode power supply topologies including secondary-side control topology and primary-side control topology. From the information on the secondary side of the isolation transformer, OB2301W generates a driving signal with dead time with respect to the primary side PWM signal to turn the integrated Nchannel SR switch on and off in proximity of the zero current transition with the help of smart driver voltage control. It is optimized for 5V output voltage. In primary-side control topology, OB2301W can detect the output voltage and feed back a series of warning pulses to primary side controller when the output voltage is lower than an inner-determined threshold to awaken the primaryside power switch to improve dynamic response. The externally adjustable minimum on time and property off time control scheme effectively avoid the ring impact induced by parasitic elements so that a reliable and noise free operation of the SR system is insured. OB2301W is offered in SOP8 package.

Merkmale

KI-Übersetzung
  • Secondary-side synchronous rectifier
  • optimized for 5V output system
  • Suitable for DCM, QR operation
  • Accurate secondary side MOSFET Vds sensing
  • Low cost small size CC/CV mode support
  • Up to 200kHz operation frequency
  • 3A/2A peak current sink/source driver capability
  • Output voltage over-shoot and under-shoot control
  • Enhanced dynamic response with firing warning pulses scheme
  • VDD UVLO protection

Anwendungen

KI-Übersetzung
  • AC/DC 5V adaptors
  • Cell phone charger
  • 5V Bias supply
  • Low voltage rectification circuits