Professional IC Distribution & Technical Solutions

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

UC3844A Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
UC3844AUC100Yes

UC3844A is a high-performance current-mode PWM controller manufactured by Fairchild Semiconductor (now part of ON Semiconductor).

The UC3844A is a high-performance current-mode PWM controller manufactured by Fairchild Semiconductor (now part of ON Semiconductor).

Specifications:

  • Input Voltage Range: 8V to 30V
  • Operating Frequency: Up to 500kHz
  • Output Duty Cycle: 0% to 100%
  • Output Current (Peak): 1A (sink/source)
  • Reference Voltage: 5V (±1%)
  • Low Startup Current: <1mA
  • Undervoltage Lockout (UVLO): 7.6V (turn-on), 7.2V (turn-off)
  • Current Sense Comparator: Adjustable threshold
  • Error Amplifier Bandwidth: 1MHz
  • Package Options: DIP-8, SOIC-8

Descriptions and Features:

  • Current-Mode Control: Provides improved loop response and simplified compensation.
  • Programmable Oscillator: Allows frequency adjustment with external timing components.
  • Pulse-by-Pulse Current Limiting: Enhances system reliability.
  • Soft-Start Capability: Reduces inrush current during startup.
  • High-Current Totem Pole Output: Directly drives power MOSFETs.
  • Latching PWM for Cycle-by-Cycle Control: Ensures precise regulation.
  • Low Power Consumption: Suitable for energy-efficient designs.

The UC3844A is commonly used in switch-mode power supplies (SMPS), DC-DC converters, and offline power applications.

Request Quotation

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

Recommended Products

  • UC3704N ,305,DIP16

    UC3704N is a high-speed MOSFET driver manufactured by Unitrode (now part of Texas Instruments).

  • UC3845N ,118,DIP8

    UC3845N is a high-performance current-mode PWM controller manufactured by Unitrode (now part of Texas Instruments).

  • UES2402 ,140,TO220

    Manufacturer:** UC **Part Number:** UES2402 ### **Specifications:** - **Type:** Schottky Barrier Diode - **Configuration:** Dual Common Cathode - **Maximum Average Forward Current (IF(AV)):** 2A per diode (1A per leg) - **Peak Forward Surg


Sales Support

Our sales team is ready to assist with:

  • Fast quotation
  • Price Discount
  • Technical specifications
Contact sales