UCC2813N-5

Product Overview

Category

UCC2813N-5 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

• UCC2813N-5 is a high-performance voltage mode PWM controller.
• It operates at a fixed frequency of 100 kHz.
• The device features an undervoltage lockout (UVLO) function.
• It has a wide input voltage range and can operate from 8V to 35V.
• UCC2813N-5 offers adjustable soft-start functionality.
• The device provides cycle-by-cycle current limiting for enhanced protection.

Package

UCC2813N-5 is available in a standard 8-pin dual in-line package (DIP).

Essence

The essence of UCC2813N-5 lies in its ability to regulate and control power in various electronic systems efficiently.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 8V to 35V
• Output Voltage Range: 0V to VCC
• Operating Frequency: 100 kHz
• Maximum Duty Cycle: 100%
• Operating Temperature Range: -40°C to +85°C
• Package Type: 8-pin DIP

Detailed Pin Configuration

1. COMP: Compensation pin
2. CS: Current sense input
3. GND: Ground reference
4. VREF: Reference voltage output
5. VCC: Supply voltage input
6. OUT: Output voltage
7. RT/CT: Timing resistor/capacitor connection
8. UVLO: Undervoltage lockout threshold

Functional Features

• Voltage mode control for precise regulation.
• Adjustable soft-start for controlled startup.
• Cycle-by-cycle current limiting for enhanced protection.
• Undervoltage lockout (UVLO) function to prevent improper operation.
• Error amplifier with high gain and low offset voltage for accurate feedback.

Advantages

• Wide input voltage range allows for versatile applications.
• Fixed frequency operation simplifies design considerations.
• Adjustable soft-start feature prevents excessive inrush current.
• Cycle-by-cycle current limiting protects the system from overloads.
• UVLO function ensures proper operation under varying input voltages.

Disadvantages

• Limited output voltage range may not be suitable for certain applications requiring higher voltages.
• The 8-pin DIP package may limit space-constrained designs.

Working Principles

UCC2813N-5 operates on the principle of voltage mode control. It compares the output voltage with a reference voltage and adjusts the duty cycle of the PWM signal accordingly. This regulates the power delivered to the load. The device also incorporates various protection features, such as undervoltage lockout and cycle-by-cycle current limiting, to ensure safe and reliable operation.

Detailed Application Field Plans

UCC2813N-5 finds applications in various power management systems, including:

1. Switching power supplies
2. Battery chargers
3. LED drivers
4. Motor control circuits
5. DC-DC converters

Detailed and Complete Alternative Models

1. UCC2813-1: Similar to UCC2813N-5 but operates at a fixed frequency of 50 kHz.
2. UCC2813-3: Similar to UCC2813N-5 but operates at a fixed frequency of 300 kHz.
3. UCC2813-8: Similar to UCC2813N-5 but operates at a fixed frequency of 800 kHz.
4. UCC2813Q-5: Surface mount version of UCC2813N-5 with the same specifications.

These alternative models offer similar functionality but operate at different frequencies, providing flexibility for various applications.

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