UC1843L - Brand New Texas Instruments IC Chips

In Stock:6114 ,Ready for Immediate Shipping
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In Stock: 6114, Ready for Immediate Shipping
Category:IC Chips
Chipdatas Part No.:CD87-UC1843L
Manufacturer Part No.:UC1843L
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  • Description

    The UC184xA family of control ICs is designed for off-line fixed-frequency, current-mode switching power supplies. This product includes all the necessary features to implement power supplies with a minimum of external components, such as improved load regulation, pulse-by-pulse current limiting, and inherent protection of the power supply output switch.

    Specifications and features

    • Low start-up current (0.5mA max.)
    • Trimmed oscillator discharge current (See Product Highlight)
    • Optimized for off-line and DC-to-DC converters
    • 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
    • 500KHz operation
    • Low offset error amplifier

    Application Scenarios

    The UC1843L is an appropriate choice for the following applications:

    • Economical off-line flyback or forward converters
    • DC-DC buck or boost converters
    • Low-cost DC motor control


    • Improved load regulation
    • Pulse-by-pulse current limiting
    • Enhanced load response characteristics
    • High-current totem pole output
    • Low offset error amplifier
    • Not suitable for applications requiring high precision
    • Frequency and maximum duty cycle must be externally programmed
    • Undervoltage lock-out requires 250µA typ. start-up current
  • Similar parts: 430483 , Click to view
    Attributes Value
    Category IC Chips
    Manufacturer Texas Instruments
    Product Category IC Chips
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  • Shopping guide

    • - 30-day money-back return policy,
    • - 90-day warranty against any manufacturing defects. View more
    Within 30 days from date of shipment. View more

    Delivery period:
    • - Will ship out in 2-3 days
    • - DHL Express: 3-7 business days
    • - DHL eCommerce: 12-22 business days
    • - FedEx International Priority: 3-7 business days
    • - EMS: 10-15 business days
    Shipping fee:
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Additional Information
  • Datasheet: Download UC1843L
  • Chipdatas Part: CD87-UC1843L
  • Warehouse: China, Hong Kong
  • Dispatch: Within 24 hours
  • Free Shipping: Yes
  • Prority Shipping: Yes, 3-5 days
  • Last Updated: 2024/04/22 08:05 +0800
    • Full Refund if you don't receive your order
    • Full or Partial Refund , If the item is not as described
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