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UCC2804N

UCC2804N is a PDIP-8 AC-DC controller and regulator with a frequency of 1MHz and an input voltage range of 8.3V to 12V

Quantity Unit Price(USD) Ext. Price
1000 $0.708 $708.00
500 $0.720 $360.00
200 $0.747 $149.40
1 $1.928 $1.93

Inventory:7,192

*The price is for reference only.
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Overview of UCC2804N

The UCC2804N is a current-mode PWM controller IC designed for controlling switch-mode power supplies. It features a high-precision oscillator for stable operation and precise control of power output. This IC is commonly used in applications such as offline LED drivers, battery chargers, and AC/DC converters.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • COMP: Compensation pin for external loop compensation
  • RT/CT: External timing capacitor and resistor connection
  • CS: Current sense input
  • EA: Error amplifier output
  • GND: Ground connection
  • DD: Device supply voltage
  • FB: Feedback input for regulating the output voltage
  • OUT: Output driver to power the external power switch

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the UCC2804N PWM controller for a visual representation.

Key Features

  • Current-Mode Operation: The UCC2804N operates in current-mode control for improved stability and transient response.
  • High-Precision Oscillator: Features a high-accuracy oscillator for precise frequency control and stability.
  • Overvoltage Protection: Includes overvoltage protection to safeguard the power supply and connected components.
  • Soft-Start Capability: Provides soft-start functionality to prevent excessive inrush current during startup.
  • Adjustable Output Voltage: The feedback pin allows for adjustable output voltage regulation.

Note: For detailed technical specifications, please refer to the UCC2804N datasheet.

Application

  • Switch-Mode Power Supplies: Ideal for use in switch-mode power supply designs for efficient power conversion.
  • LED Drivers: Suitable for driving LEDs in various lighting applications requiring stable power delivery.
  • Battery Chargers: Used in battery charger circuits for efficiently regulating the charging process.

Functionality

The UCC2804N is a current-mode PWM controller that provides precise control over power output in switch-mode power supplies. It ensures stable operation and efficient power conversion in various electronic applications.

Usage Guide

  • Supply Voltage: Connect the DD pin to the device supply voltage within the specified operating range.
  • Feedback Connection: Connect the FB pin to the feedback network for output voltage regulation.
  • Current Sense: Ensure proper connection of the current sense input for accurate current control.

Frequently Asked Questions

Q: Can the UCC2804N be used in high-power applications?
A: The UCC2804N is suitable for moderate power applications. For high-power applications, consider higher-rated alternatives.

Q: Does the UCC2804N require external compensation?
A: Yes, the COMP pin allows for external loop compensation to optimize performance in specific applications.

Equivalent

For similar functionalities, consider these alternatives to the UCC2804N:

  • TL494: A PWM controller IC with similar features and suitable for various power supply applications.
  • SG3524: This PWM controller offers versatile control capabilities like the UCC2804N and is commonly used in power electronics.
  • IR2153: An integrated power factor correction and PWM control IC for efficient power supply designs.

Specifications

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

Product Category Switching Controllers RoHS Details
Topology Boost, Flyback, Forward Number of Outputs 1 Output
Switching Frequency 1 MHz Duty Cycle - Max 50 %
Input Voltage 12 V Output Voltage 5 V
Output Current 1 A Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C Mounting Style Through Hole
Package / Case PDIP-8 Brand Texas Instruments
Fall Time 44 ns Product Type Switching Controllers
Rise Time 41 ns Series UCC2804
Factory Pack Quantity 50 Subcategory PMIC - Power Management ICs
Type Current Mode PWM Controllers Unit Weight 0.018455 oz

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UCC2804N

UCC2804N is a PDIP-8 AC-DC controller and regulator with a frequency of 1MHz and an input voltage range of 8.3V to 12V

Inventory:

7,192