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HGSEMI UC2845BN product image
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HGSEMI UC2845BN

Hersteller
HGSEMIAsian Brands
Herst.-Teilenr.
UC2845BN
LCSC-Nr.
C19193451
Verp.
DIP-8
Kundennummer
Hauptmerkm.
Current-mode PWM controller
DatenblattHGSEMI UC2845BN
Garantie auf jede Bestellung
100% Authentisch · 30-Tage-Rückgabe oder -Umtausch
Vorrätig: 50
50 Ab Lager, sofort versandfertig
Minimum: 5Vielfaches: 5Verkaufseinheit: Piece
Zur BOM-Liste hinzufügen
Stk.E-PreisGesamtbetrag
5+$ 0.2891$ 1.45
50+$ 0.227$ 11.35
150+$ 0.2004$ 30.06
500+$ 0.1672$ 83.60
2,000+$ 0.1524$ 304.80
4,000+$ 0.1436$ 574.40
Standardgehäuse50/Full Tube
Besserer Preis bei größerer Menge?
$

Produktspezifikationen

Alle
TypBeschreibung
KategorieIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
HerstellerHGSEMI
Verp.DIP-8
Operating Temperature-40℃~+85℃
Frequency - Switching100kHz~500kHz
Output Current1A
Pd - Power Dissipation850mW
Voltage - Breakdown-
Voltage - Supply10V~30V
Topology-
FeaturesSlope compensation;Under-voltage lockout;Over Current Protection;Under Voltage Protection
Output Voltage0V~28V
Duty Cycle(Max)50%
Feedback System-
Working ModePWM Modulation
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Beschreibung

KI-Übersetzung

UC2845B is a high-performance fixed-frequency current-mode controller designed for isolated or DC-DC converter applications, offering designers a cost-effective solution with minimal external components. The circuit features an undervoltage lockout module with startup current less than 0.5mA, a precision reference voltage connected to the error amplifier input that is trimmed for high accuracy. Additional internal modules include logic circuitry for latched operation, current limiting, and a PWM comparator designed for high-current totem-pole output. This output stage is suitable for driving N-channel MOSFETs, with the output held low during shutdown.

Merkmale

KI-Übersetzung
  • Optimized for isolated or DC/DC converter applications
  • Low startup current (<0.5mA)
  • Automatic feed-forward compensation
  • Cycle-by-cycle current limiting
  • Enhanced load transient response
  • Under-voltage protection with hysteresis
  • Double-pulse suppression
  • High-current totem-pole output
  • Internal trimmed bandgap reference
  • Operating frequency up to 500kHz

Anwendungen

KI-Übersetzung
  • Power converters