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TI UC1843AMDREP product image
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TI UC1843AMDREPRoHS

Manufacturer
TI
MPN
UC1843AMDREP
LCSC Part #
C702394
Packaging
SOIC-8
Customer #
Key Attributes
CURRENT-MODE PWM CONTROLLER
Datasheetpdf iconTI UC1843AMDREP

Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Power Supply Controllers, Monitors
ManufacturerTI
PackagingSOIC-8
Output Current1A
Pd - Power Dissipation1W
Frequency - Switching500kHz
FeaturesSlope compensation;Under-voltage lockout;Over Current Protection;Under Voltage Protection
Output Voltage5V
Duty Cycle(Max)96%
Operating Temperature-55℃~+125℃
Operating Voltage30V
TopologyFlyback
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The UC1842A/3A/4A/5A family of control ICs is a pin-for-pin compatible improved version of the UC3842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplies, this family has the following improved features. Start up current is guaranteed to be less than 0.5 mA. Oscillator discharge is trimmed to 8.3 mA. During under voltage lockout, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.

Features

AI Translation
  • Controlled Baseline − One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of -55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product Change Notification
  • Qualification Pedigree
  • Optimized for Off-line and DC-to-DC Converters
  • Low Start Up Current (<0.5 mA)
  • Trimmed Oscillator Discharge Current
  • Automatic Feed Forward Compensation
  • Pulse-by-Pulse Current Limiting
  • Enhanced Load Response Characteristics
  • Under-Voltage Lockout With Hysteresis
  • Double Pulse Suppression
  • High Current Totem Pole Output
  • Internally Trimmed Bandgap Reference
  • 500 kHz Operation
  • Low Ro Error Amp
In-Stock: 2,439
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Add to BOM List
QtyUnit PriceTotal Amount
1+$ 9.2066$ 9.21
10+$ 7.8951$ 78.95
30+$ 7.0942$ 212.83
100+$ 6.4247$ 642.47
Standard Packaging2500/Full Reel
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