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TDSEMIC UC3843AN-TDRoHS

Manufacturer
TDSEMICAsian Brands
MPN
UC3843AN-TD
LCSC Part #
C42422131
Packaging
DIP-8
Customer #
Key Attributes
Current-mode Pulse Width Modulator
Datasheetpdf iconTDSEMIC UC3843AN-TD
In-Stock: 1,660
1,660 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.2092$ 1.05
50+$ 0.165$ 8.25
150+$ 0.146$ 21.90
500+$ 0.1223$ 61.15
2,500+$ 0.1118$ 279.50
5,000+$ 0.1054$ 527.00
Standard Packaging50/Full Tube
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTDSEMIC
PackagingDIP-8
Operating Temperature0℃~+70℃@(TA)
FunctionStep-down type;Boost;Buck-Boost
Frequency - Switching500kHz
Number of Outputs1
FeaturesCycle-by-cycle current limiting;Overcurrent Protection
TopologyFlyback
Output TypeAdjustable
Operating Voltage12V~25V
Switch tube (built-in/external)External
Quiescent Current12mA
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Additional Information

TypeDetails
Minimum5
Multiple5
Standard Packaging50
Sales UnitPiece

Introduction

AI Translation

UC3843 is a constant-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 precise 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 circuits including single-cycle hysteretic current limiting, undervoltage lockout (UVLO), adjustable dead time, and single-pulse metering latch. The UC3843 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 clamping
  • Operating frequency up to 500kHz