UC3843BD1-LF The ST UC3843BD1-LF is a DC DC switching controller designed for flyback topology. It operates with a supply voltage up to 30V and features a surface mount package.
Mfr Part #:

UC3843BD1-LF

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The ST UC3843BD1-LF is a DC DC switching controller designed for flyback topology. It operates with a supply voltage up to 30V and features a surface mount package.
✓ Total Stock: 3,780 pcs
$ Price Range: $2.95

UC3843BD1-LF Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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3,780 pcs
3780 pcs On Request 1 On Request On Request On Request On Request On Request

UC3843BD1-LF Specifications Quick View

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UC3843BD1-LF Description

Short technical summary and product information.

The UC3843BD1-LF from ST is a versatile DC DC switching controller, specifically designed for flyback applications. This integrated circuit is capable of operating within a wide supply voltage range, from 7.6V up to 30V, making it suitable for various power management designs. It supports both boost and flyback topologies, offering flexibility in circuit configuration. The device features a switching frequency of up to 500kHz, enabling efficient power conversion.

 

Packaged in a standard 14-SOIC surface mount configuration, the UC3843BD1-LF is designed for ease of integration into printed circuit boards. Its output type is a transistor driver, and it supports positive output configurations that are isolation capable. The operating temperature range is from 0°C to 70°C (TA), ensuring reliable performance in typical ambient conditions. This component is ideal for applications requiring efficient and stable DC to DC power conversion.

 

Key specifications include a single output phase and a single output configuration. The controller is not a synchronous rectifier. The description highlights its function as an IC regulator controller for flyback converters. The RoHS status is noted as non-compliant.

UC3843BD1-LF Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3843BD1-LF
Subcategory: DC DC Switching Controllers

UC3843BD1-LF Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

UC3843BD1-LF Estimated Pricing

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1+ $2.95 $2.95

Estimated market price range - modelled values for guidance only, not live distributor offers.

UC3843BD1-LF Features

  • DC DC switching controller for flyback topology.
  • Wide supply voltage range of 7.6V to 30V.
  • High switching frequency up to 500kHz.
  • Surface mount 14-SOIC package.
  • Supports boost and flyback topologies.

UC3843BD1-LF Applications

  • Used in switch-mode power supplies
  • Suitable for flyback converter designs
  • Ideal for boost regulator circuits
  • Applicable in industrial power management

UC3843BD1-LF FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3843BD1-LF?

The operating voltage supply range is 7.6V to 30V.

What is the switching frequency of the UC3843BD1-LF?

The switching frequency is up to 500kHz.

What type of package is the UC3843BD1-LF in?

It is in a 14-SOIC package.

What is the operating temperature for the UC3843BD1-LF?

The operating temperature is between 0°C and 70°C (TA).

What is the RoHS status of the UC3843BD1-LF?

The RoHS status is non-compliant.

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