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UCC2813PW-2
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UCC2813PW-2

Product Overview

Category

UCC2813PW-2 belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is commonly used in various power supply systems, including switch-mode power supplies (SMPS), battery chargers, and DC-DC converters.

Characteristics

  • UCC2813PW-2 is a high-performance voltage mode PWM controller.
  • It operates with a wide input voltage range, making it suitable for different power supply designs.
  • The device offers precise regulation and control over output voltage and current.
  • It incorporates various protection features such as overvoltage protection (OVP) and overcurrent protection (OCP).
  • UCC2813PW-2 provides excellent line and load regulation, ensuring stable and reliable power delivery.

Package

The UCC2813PW-2 comes in a standard 8-pin plastic small-outline package (SOIC). This package type ensures easy integration into circuit boards and efficient heat dissipation.

Essence

The essence of UCC2813PW-2 lies in its ability to efficiently regulate and control power supply systems, providing stable and reliable power to various electronic devices.

Packaging/Quantity

UCC2813PW-2 is typically available in reels or tubes, containing a quantity of 250 units per reel/tube.

Specifications

  • Input Voltage Range: 7V to 25V
  • Output Voltage Range: 0.8V to 20V
  • Operating Temperature Range: -40°C to 85°C
  • Maximum Duty Cycle: 100%
  • Oscillator Frequency Range: 50kHz to 500kHz
  • Error Amplifier Gain Bandwidth: 2MHz

Detailed Pin Configuration

  1. COMP: Compensation pin for error amplifier feedback.
  2. CS: Current sense input for current mode control.
  3. GND: Ground reference for the IC.
  4. VREF: Reference voltage output for error amplifier.
  5. FB: Feedback pin for voltage regulation.
  6. RT/CT: Timing components connection for oscillator frequency setting.
  7. OUT: Output pin for power supply connection.
  8. VCC: Power supply input for the IC.

Functional Features

  • Voltage mode control for precise regulation and stability.
  • Current mode control for improved transient response and protection.
  • Adjustable oscillator frequency for flexible design optimization.
  • Error amplifier with high gain bandwidth for accurate feedback control.
  • Overvoltage protection (OVP) to safeguard against excessive voltage levels.
  • Overcurrent protection (OCP) to prevent damage due to excessive current flow.

Advantages and Disadvantages

Advantages

  • Wide input voltage range allows for versatile power supply designs.
  • Excellent line and load regulation ensure stable power delivery.
  • Integrated protection features enhance system reliability.
  • Compact package size facilitates easy integration into circuit boards.

Disadvantages

  • Limited output voltage range may not be suitable for certain applications requiring higher voltages.
  • Requires external timing components for oscillator frequency adjustment.

Working Principles

UCC2813PW-2 operates based on the voltage mode control technique. It compares the feedback voltage from the output with a reference voltage to generate an error signal. This error signal is then amplified and used to adjust the duty cycle of the PWM signal, which regulates the power supply output voltage. The device also incorporates current mode control, where the current sense input provides additional feedback for improved transient response and protection against overcurrent conditions.

Detailed Application Field Plans

UCC2813PW-2 finds extensive application in various power management systems, including: - Switch-mode power supplies (SMPS) for computers, telecommunication equipment, and industrial machinery. - Battery chargers for portable devices such as smartphones, tablets, and laptops. - DC-DC converters for voltage conversion in automotive electronics, renewable energy systems, and consumer electronics.

Detailed and Complete Alternative Models

  1. UCC2813-1: Similar to UCC2813PW-2 but with a different package type (DIP-8).
  2. UCC2813-3: Similar to UCC2813PW-2 but with a wider input voltage range (4.5V to 25V).
  3. UCC3813: Enhanced version with additional features such as soft-start and synchronization capability.

These alternative models offer similar functionality and can be considered based on specific design requirements and constraints.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de UCC2813PW-2 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of UCC2813PW-2 in technical solutions:

  1. Q: What is UCC2813PW-2? A: UCC2813PW-2 is a pulse width modulation (PWM) controller IC used for controlling power supply circuits.

  2. Q: What are the key features of UCC2813PW-2? A: Some key features of UCC2813PW-2 include adjustable frequency, soft-start capability, cycle-by-cycle current limiting, and overvoltage protection.

  3. Q: How does UCC2813PW-2 help in power supply applications? A: UCC2813PW-2 helps regulate the output voltage and control the switching frequency of power supply circuits, ensuring stable and efficient operation.

  4. Q: Can UCC2813PW-2 be used in both AC-DC and DC-DC power supplies? A: Yes, UCC2813PW-2 can be used in both AC-DC and DC-DC power supply applications.

  5. Q: What is the maximum operating voltage range of UCC2813PW-2? A: The maximum operating voltage range of UCC2813PW-2 is typically between 8V and 35V.

  6. Q: How can I adjust the switching frequency of UCC2813PW-2? A: The switching frequency of UCC2813PW-2 can be adjusted by changing the value of an external resistor connected to the RT pin.

  7. Q: Does UCC2813PW-2 have any built-in protection features? A: Yes, UCC2813PW-2 has built-in protection features such as cycle-by-cycle current limiting and overvoltage protection.

  8. Q: Can UCC2813PW-2 be used in high-power applications? A: Yes, UCC2813PW-2 can be used in high-power applications by using external power devices capable of handling the required power levels.

  9. Q: What is the purpose of the soft-start feature in UCC2813PW-2? A: The soft-start feature in UCC2813PW-2 gradually ramps up the output voltage during startup, reducing stress on components and preventing excessive inrush current.

  10. Q: Are there any application notes or reference designs available for UCC2813PW-2? A: Yes, Texas Instruments provides application notes and reference designs that can help in implementing UCC2813PW-2 in various power supply applications.