UC1825J The Texas Instruments UC1825J is a high-speed PWM controller designed for switched-mode power supply applications. It offers features like pulse-by-pulse current limiting and soft-start control.
Mfr Part #:

UC1825J

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC1825J is a high-speed PWM controller designed for switched-mode power supply applications. It offers features like pulse-by-pulse current limiting and soft-start control.
✓ Total Stock: 15 pcs
$ Price Range: $28.76

UC1825J Available from 1 distributor

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UC1825J Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Duty Cycle
Features
Output Current
Propagation Delay
Topology

UC1825J Description

Short technical summary and product information.

The UC1825J from Texas Instruments is a high-speed PWM control IC optimized for high-frequency switched-mode power supply applications. It is designed for use in either current-mode or voltage-mode systems and supports multiple topologies including Boost, Flyback, Forward, Full bridge, Half bridge, and Push pull.

 

Key electrical characteristics include a maximum duty cycle of 80%, practical operation switching frequencies up to 1MHz, and a propagation delay to output of 50ns. It features high current dual totem pole outputs capable of 1.5A peak, a wide bandwidth error amplifier, and fully latched logic with double pulse suppression. Protection features include pulse-by-pulse current limiting, soft start, and under-voltage lockout with hysteresis.

 

This controller is available in CDIP (J), CFP (W), and LCCC (FK) packages. Its design prioritizes minimizing propagation delays and maximizing error amplifier performance, making it suitable for demanding power supply designs.

UC1825J Quick Information

Product Type: High Speed PWM Controller
Canonical Name: UC1825J High Speed PWM Controller
Subcategory: Voltage Regulators - Linear Regulator Controllers

UC1825J Compliance

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

UC1825J Estimated Pricing

Qty Low High
1+ $28.76 $28.76

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

UC1825J Features

  • High speed PWM controller for SMPS.
  • Supports multiple power supply topologies.
  • 1MHz practical switching frequency.
  • 50ns propagation delay to output.
  • Pulse-by-pulse current limiting.

UC1825J Applications

  • Ideal for high-frequency power supplies.
  • Suitable for current or voltage mode control.
  • Used in Boost and Flyback converters.
  • Applicable in Full and Half bridge designs.

UC1825J FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum duty cycle of the UC1825J?

The maximum duty cycle is 80%.

What switching frequency can the UC1825J operate at?

It can operate at a switching frequency up to 1MHz.

What is the output current rating of the UC1825J?

It provides a peak output current of 1.5A.

What packages are available for the UC1825J?

Available packages include CDIP (J), CFP (W), and LCCC (FK).

Does the UC1825J support soft start functionality?

Yes, it features soft start and maximum duty cycle control.

Is the UC1825J RoHS compliant?

Yes, it is RoHS3 compliant, though this status is unverified.

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