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UC3843D8TRG4 The UC3843D8TRG4 is a current mode PWM controller from Texas Instruments. It operates up to 500kHz and is suitable for various DC-to-DC converter topologies.
Mfr Part #:

UC3843D8TRG4

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The UC3843D8TRG4 is a current mode PWM controller from Texas Instruments. It operates up to 500kHz and is suitable for various DC-to-DC converter topologies.
✓ Total Stock: 113,000 pcs
$ Price Range: $0.78

UC3843D8TRG4 Available from 1 distributor

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✓ Non-Authorised
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Romaks Technologies ✓
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113,000 pcs
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UC3843D8TRG4 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Tape & Reel
Topology
Voltage
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UC3843D8TRG4 Description

Short technical summary and product information.

The Texas Instruments UC3843D8TRG4 is a single-ended, current mode PWM controller designed for off-line and DC-to-DC converters. It features a maximum operating frequency of 500kHz and supports a wide input voltage range of 12V to 28V.

 

This controller is optimized for various topologies including Boost, Buck, Buck-Boost, Flyback, and Forward converters. It offers features such as a maximum duty cycle of 97%, frequency control, and a transistor driver output. The device operates within a temperature range of 0°C to 70°C.

 

The UC3843D8TRG4 is available in an 8-SOIC package, suitable for surface mount applications. Its design facilitates the implementation of fixed-frequency current-mode control schemes with a minimal number of external components.

UC3843D8TRG4 Quick Information

Product Type: DC DC Switching Controller
Series: UC3843
Canonical Name: UC3843D8TRG4 Current Mode PWM Controller
Subcategory: Current Mode

UC3843D8TRG4 Compliance

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

UC3843D8TRG4 Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC3843D8TRG4 Features

  • Current mode PWM controller IC.
  • Operates up to 500kHz frequency.
  • Supports multiple converter topologies.
  • Available in 8-SOIC package.
  • Wide voltage range of 12V to 28V.

UC3843D8TRG4 Applications

  • Used in DC-to-DC converters.
  • Suitable for off-line power supplies.
  • Ideal for Boost converter designs.
  • Applicable to Buck-Boost circuits.
  • Supports Flyback and Forward topologies.

UC3843D8TRG4 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the UC3843D8TRG4?

The operating temperature range is 0°C to 70°C.

What is the maximum operating frequency of the UC3843D8TRG4?

The maximum operating frequency is 500kHz.

What is the voltage range for the UC3843D8TRG4?

The voltage range is 12V to 28V.

What is the maximum duty cycle for the UC3843D8TRG4?

The maximum duty cycle is 97%.

What type of output does the UC3843D8TRG4 provide?

It provides a transistor driver output.

What topologies does the UC3843D8TRG4 support?

It supports Boost, Buck, Buck-Boost, Flyback, and Forward topologies.

What package is the UC3843D8TRG4 supplied in?

The UC3843D8TRG4 is supplied in an 8-SOIC package.

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