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HGSEMI UC2843BN product image
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HGSEMI UC2843BNRoHS

Manufacturer
HGSEMIAsian Brands
MPN
UC2843BN
LCSC Part #
C19193447
Packaging
DIP-8
Customer #
Key Attributes
100kHz~500kHz 1A 1W 10V~30V 0V~28V DIP-8 AC DC Converters, Offline Switchers RoHS
Datasheetpdf iconHGSEMI UC2843BN
In-Stock: 1,130
1,130 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.2716$ 1.36
50+$ 0.2107$ 10.54
150+$ 0.1846$ 27.69
500+$ 0.152$ 76.00
2,000+$ 0.1375$ 275.00
4,000+$ 0.1288$ 515.20
Standard Packaging50/Full Tube
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
ManufacturerHGSEMI
PackagingDIP-8
Operating Temperature-40℃~+85℃
Frequency - Switching100kHz~500kHz
Output Current1A
Pd - Power Dissipation1W
Voltage - Breakdown-
Voltage - Supply10V~30V
Topology-
FeaturesUnder-voltage lockout;Slope compensation;Over Current Protection;Under Voltage Protection
Output Voltage0V~28V
Duty Cycle(Max)96%
Feedback System-
Working ModePWM Modulation
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging50
Sales UnitPiece

Introduction

AI Translation

UC2843B is a high-performance fixed-frequency current-mode controller designed for isolated or DC-DC converter applications, offering designers a cost-effective solution requiring minimal external components. The circuit incorporates an undervoltage lockout module with a startup current of less than 0.5mA. A trimmed precision reference voltage providing high accuracy is connected to the error amplifier input. Additional internal modules include logic circuitry for latched operation, current limiting, and a PWM comparator designed to drive a high-current totem-pole output. The output architecture is suitable for driving N-channel MOSFETs, with the output held low during shutdown.

Features

AI Translation
  • Optimized for isolated or DC/DC converters
  • Low startup current (less than 0.5mA)
  • Automatic feed-forward compensation
  • Cycle-by-cycle current limiting
  • Enhanced load transient response
  • UVLO with hysteresis
  • Double-pulse suppression
  • High-current totem-pole output
  • Internal trimmed bandgap reference
  • Operating frequency up to 500kHz

Applications

AI Translation
  • Power converters