UC2825N

Enhanced 30V, 1.5A double ended 1MHz PWM controller with 9.2V/8.4V UVLO, 80% duty cycle, -40C to 85C 16-PDIP -40 to 85
5,347 Effective Inventory

UC2825N

Effective Inventory5,347

Enhanced 30V, 1.5A double ended 1MHz PWM controller with 9.2V/8.4V UVLO, 80% duty cycle, -40C to 85C 16-PDIP -40 to 85

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Service & Packaging

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UC2825N DataSheet
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Please submit RFQ for UC2825N or email to us: Email: [email protected], we will contact you in 12 hours.

Details

The UC2825N is a high-frequency PWM control IC that is part of the UC1825 family. It has been specifically optimized for use in switched mode power supply applications, with a focus on minimizing propagation delays and maximizing bandwidth and slew rate of the error amplifier. This makes it suitable for use in both current-mode and voltage mode systems, with the added capability for input voltage feed-forward

Key Features

  • High Efficiency Converter Design
  • Programmable Frequency Limit
  • Fast Transient Response
  • Soft Start Functionality

Specifications

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

Pbfree Code Yes Rohs Code Yes
Part Life Cycle Code Active Part Package Code DIP
Pin Count ! 16 Reach Compliance Code compliant
ECCN Code EAR99 HTS Code ! 8542.39.00.01
Additional Feature ! CAN ALSO BE CONFIGURED IN CURRENT MODE Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 12 V Input Voltage-Min 8.8 V
Input Voltage-Nom 15 V JESD-30 Code R-PDIP-T16
JESD-609 Code e4 Length 19.305 mm
Number of Functions 1 Number of Terminals 16
Operating Temperature-Max 85 °C Operating Temperature-Min -40 °C
Output Current-Max 2 A Output Voltage-Max 5.15 V
Output Voltage-Min 5.05 V Output Voltage-Nom 5.1 V
Package Body Material PLASTIC/EPOXY Package Code DIP
Package Equivalence Code DIP16,.3 Package Shape RECTANGULAR
Package Style IN-LINE Peak Reflow Temperature (Cel) NOT APPLICABLE
Qualification Status ! Not Qualified Seated Height-Max 5.08 mm
Supply Current-Max (Isup) 33 mA Supply Voltage-Max (Vsup) 12 V
Supply Voltage-Min (Vsup) 9.2 V Supply Voltage-Nom (Vsup) 15 V
Surface Mount ! NO Switcher Configuration PUSH-PULL
Switching Frequency-Max 1000 kHz Technology BICMOS
Temperature Grade ! INDUSTRIAL Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form ! THROUGH-HOLE Terminal Pitch ! 2.54 mm
Terminal Position DUAL Time@Peak Reflow Temperature-Max (s) NOT APPLICABLE
Width 7.62 mm

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification UC2825N PDF Download

FAQs

What is UC2825N?

The UC2825N is a high-speed PWM controller integrated circuit designed by Texas Instruments. It is commonly used in switched-mode power supply (SMPS) applications for controlling power delivery and regulation operations.

How Does UC2825N Work?

The UC2825N operates as a pulse-width modulation (PWM) controller, generating precise digital signals to control the duty cycle of power transistors in a power supply circuit. By adjusting the duty cycle of the output waveform, the UC2825N regulates the output voltage and current of the power supply.

How Many Pins does UC2825N have and What are the Functions of the Pinout Configuration?

The UC2825N is housed in a 16-pin dual in-line package (DIP). The pinout configuration includes:

  • VCC: Positive power supply pin.
  • RT/CT: Timing resistor/capacitor pin for setting oscillator frequency.
  • COMP: Error amplifier output for compensation network.
  • FB: Feedback input for output voltage regulation.
  • RT/SD: Reset/Set and shutdown pin.
  • OUT: PWM output.

What are the Pros and Cons of UC2825N?

Pros:

  • High-Speed Operation: Suitable for switching frequencies in high-performance power supply designs.
  • Precision Control: Provides accurate control over power output through PWM techniques.
  • Protection Features: Offers shutdown and fault protection functions for enhanced system reliability.
  • Wide Operating Voltage Range: Supports a wide range of input voltages for versatile applications.
  • Industry Standard: Widely used and well-documented in power supply design applications.

Cons:

  • External Components: May require additional external components for specific power supply configurations.
  • Complexity: Requires understanding of power electronics principles for optimal design implementation.

Are There Any Equivalents/Alternatives to UC2825N for Recommendation?

  • The UC3845 from Texas Instruments is a comparable PWM controller with similar features.
  • Alternatives to the UC2825N include the SG3525 from STMicroelectronics and the TL494 from Texas Instruments.

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