Professional IC Distribution & Technical Solutions

Global leader in semiconductor components distribution and technical support services, empowering your product innovation and industry advancement

Product Catalog Contact Us
Home > ON > UC3843AN

UC3843AN Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
UC3843ANON5000Yes

UC3843AN is a high-performance current-mode PWM controller manufactured by ON Semiconductor.

The UC3843AN is a high-performance current-mode PWM controller manufactured by ON Semiconductor.

Specifications:

  • Input Voltage Range: 8.4V to 30V
  • Operating Frequency: Up to 500kHz
  • Output Current: ±1A (Peak)
  • Duty Cycle Range: 0% to 100%
  • Reference Voltage: 5V (±1%)
  • Low Startup Current: <1mA
  • Undervoltage Lockout (UVLO): 8.4V (on), 7.6V (off)
  • Package: 8-Pin PDIP (Plastic Dual In-Line Package)

Descriptions:

The UC3843AN is designed for DC-DC converter applications, providing precise control in switching power supplies. It features a fixed-frequency current-mode architecture for improved line and load regulation. The device includes a trimmed oscillator, high-gain error amplifier, current sensing comparator, and a totem-pole output stage for driving power MOSFETs.

Features:

  • Current-Mode Operation for enhanced transient response
  • Automatic Feed-Forward Compensation
  • Latching PWM for cycle-by-cycle current limiting
  • Internal Trimmed Bandgap Reference
  • Low Output Resistance (RO) for efficient MOSFET driving
  • Single-Ended Output with high current drive capability

This IC is widely used in offline and DC-DC power supply designs, including flyback, forward, and boost converters.

Request Quotation

Part Number:
Quantity:
Target Price($USD):
Email:
Contact Person:
Additional Part Number
Quantity (Additional)
Special Requirements
Verification: =

Recommended Products

  • HC04A ,159,SOP14

    HC04A is a hex inverter IC (integrated circuit) manufactured by ON Semiconductor.

  • 1N4933 ,292,DO-41

    1N4933 is a fast switching rectifier diode manufactured by ON Semiconductor.

  • FDD8453LZ-F085 ,6584,AA

    FDD8453LZ-F085** is a power MOSFET manufactured by **ON Semiconductor**.

  • MC81F4316M,ABOV,54,SOP28

    HM6167LP-8,HIT,54,DIP20

Sales Support

Our sales team is ready to assist with:

  • Fast quotation
  • Price Discount
  • Technical specifications
Contact sales