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HXY MOSFET UC3843B-HXY product image
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HXY MOSFET UC3843B-HXYRoHS

Manufacturer
HXY MOSFETAsian Brands
MPN
UC3843B-HXY
LCSC Part #
C18198399
Packaging
SOP-8
Customer #
Key Attributes
Current-mode Pulse Width Modulator
Datasheetpdf iconHXY MOSFET UC3843B-HXY
In-Stock: 2,510
2,510 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.2153$ 1.08
50+$ 0.1727$ 8.64
150+$ 0.1545$ 23.18
500+$ 0.1317$ 65.85
2,500+$ 0.1045$ 261.25
5,000+$ 0.0984$ 492.00
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
ManufacturerHXY MOSFET
PackagingSOP-8
Operating Temperature0℃~+70℃
Output Current1A
Frequency - Switching500kHz
Pd - Power Dissipation1W
Voltage - Breakdown-
Voltage - Supply30V
TopologyFlyback
FeaturesUnder-voltage lockout;Over Current Protection;Under Voltage Protection
Output Voltage-
Duty Cycle(Max)96%
Feedback System-
Working ModePWM Modulation
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

UC3843B is a fixed-frequency current-mode PWM controller designed for off-line and DC-DC switching power supply applications. It integrates a temperature-compensated precision reference, an adjustable oscillator for accurate duty cycle control, a high-gain error amplifier, a current-sensing comparator, a high-current totem-pole output stage suitable for driving power MOSFETs, along with protection features including cycle-by-cycle current limiting with hysteresis, undervoltage lockout (UVLO), adjustable dead time, and single-pulse count latching. The controller is available in DIP8 or SOP8 packages.

Features

AI Translation
  • Low startup current (< 0.5mA)
  • Automatic feedforward compensation
  • Undervoltage lockout with hysteresis
  • Maximum duty cycle limiting
  • Operating frequency up to 500 kHz