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JSMSEMI UC3843-JSM product image
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JSMSEMI UC3843-JSMRoHS

Manufacturer
JSMSEMIAsian Brands
MPN
UC3843-JSM
LCSC Part #
C41421788
Packaging
SOP-8
Customer #
Key Attributes
Converter Offline 500kHz SOP-8
Datasheetpdf iconJSMSEMI UC3843-JSM
In-Stock: 4,475
4,475 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.1161$ 0.0581$ 0.29
50+$ 0.1014$ 0.0507$ 2.54
150+$ 0.0951$ 0.0476$ 7.14
500+$ 0.0872$ 0.0436$ 21.80
2,500+$ 0.0837$ 0.0419$ 104.75
5,000+$ 0.0816$ 0.0408$ 204.00
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
ManufacturerJSMSEMI
PackagingSOP-8
Operating Temperature0℃~+70℃
Output Current1A
Frequency - Switching500kHz
Pd - Power Dissipation1W
Voltage - Breakdown-
Voltage - Supply30V
Topology-
FeaturesUnder-voltage lockout;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

UC3843 is a current-mode PWM IC designed for switched-mode power supplies. Compared to voltage-mode control, it offers significant advantages in load transient response and line regulation. Available in SOP8 and DIP8 packages.

Features

AI Translation
  • Built-in undervoltage lockout circuit
  • Low startup current (typical 70uA)
  • Stable internal voltage reference
  • High-current push-pull output (drive current up to 1A)
  • Operating frequency up to 500kHz
  • Automatic negative feedback compensation circuit
  • Double pulse suppression
  • Strong load transient response