• UC3843AN PDIP (P)-8
UC3843AN PDIP (P)-8

UC3843AN

Switching Controllers Operating in Current Mode of 0.5mA

Inventory:5,968

  • 90-day after-sales guarantee
  • 365 Days Quality Guarantee
  • Genuine Product Guarantee
  • 7*24 hours service quarantee

  • Part Number : UC3843AN

  • Package/Case : PDIP (P)-8

  • Brands : Texas Instruments

  • Components Categories : DC DC Switching Controllers

  • Datesheet : UC3843AN DataSheet (PDF)

Quick Inquiry

Please submit RFQ for UC3843AN or email to us: Email: [email protected], we will contact you in 12 hours.

Overview of UC3843AN

The UC3843AN is a versatile PWM (Pulse Width Modulation) controller IC commonly used in switch-mode power supply applications. Manufactured by Texas Instruments, it operates in voltage mode control and offers precise regulation of output voltage. The device integrates functions such as a precision voltage reference, error amplifier, PWM comparator, and a high-current totem-pole output stage. Its internal oscillator can be adjusted over a wide frequency range, allowing flexibility in design. The UC3843AN facilitates efficient power conversion by regulating the duty cycle of the output waveform based on feedback from the output voltage. With its wide input voltage range and robust design, it finds applications in various power supply designs, including AC/DC converters, DC/DC converters, and battery chargers. The 'AN' suffix denotes the package type, typically a DIP (Dual Inline Package), making it suitable for through-hole mounting on PCBs

UC3843AN

Key Features

  • Current-mode PWM controller
  • Adjustable output voltage and frequency
  • Voltage feedback loop for stable operation
  • Soft start function for controlled start-up
  • Overcurrent protection
  • Under-voltage lockout
  • Low start-up current
  • High switching frequency for efficient power conversion

    • Application

  • The UC3843AN is commonly used in switching power supply applications, such as offline flyback converters, DC-DC converters, and LED drivers
  • It is ideal for low-to-medium power applications where high efficiency and precise regulation are important

    • Specifications

    The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

    Topology Boost, Buck, Flyback, Forward Control mode Current
    Duty cycle (max) (%) 100 Switching frequency (max) (kHz) 500
    Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology UVLO thresholds on/off (V) 8.4/7.6
    Operating temperature range (°C) 0 to 70 Rating Catalog
    Gate drive (typ) (A) 1 Vin (max) (V) 28

    Warranty & Returns

    Warranty, Returns, and Additional Information

    • QA & Return Policy

      Parts Quality Guarantee: 365 days

      Returns for refund: within 90 days

      Returns for Exchange: within 90 days

    • Shipping and Package

      Shipping:For example, FedEx, SF, UPS, or DHL.UPS, or DHL.

      Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.

    • Payment

      For example, channels like VISA, MasterCard, UnionPay, Western Union, PayPal, and more.

      If you have specific payment channel preferences or requirements, please get in touch with our sales team for assistance.

    Similar Product

    UC3843BVD1R2G

    UC3843BVD1R2G

    Current Mode Control
    UC3845BD1R2G

    UC3845BD1R2G

    8-Pin SOIC N T/R
    UC2842BD1R2G

    UC2842BD1R2G

    Current Mode PWM Controller 1A 500kHz 8-Pin SOIC N T/R
    UC3845BD1013TR

    UC3845BD1013TR

    Switching Controllers 0.5mA Current Mode
    UC3844BD1R2G

    UC3844BD1R2G

    Current Mode PWM Controller 1A 500kHz 8-Pin SOIC N T/R
    UC3903N

    UC3903N

    Multi-channel Power Supply Checker
    UC3717AN

    UC3717AN

    4.75V~5.25V Half Bridge Gate Drive ICs ROHS in PDIP-16
    UC3717AQ

    UC3717AQ

    Stepper motor drive circuit for motor, motion, and ignition control