UCC28180DR

Overview

Category: Integrated Circuit (IC)

Use: Voltage Mode PWM Controller

Characteristics: - High-performance voltage mode controller - Designed for offline and DC-to-DC power supplies - Provides precise control of output voltage and current - Offers protection features such as overvoltage, undervoltage, and overcurrent protection

Package: SOIC-8

Essence: UCC28180DR is a voltage mode PWM controller that is widely used in various power supply applications. It offers high performance and precise control of output voltage and current.

Packaging/Quantity: UCC28180DR is typically sold in reels or tubes containing 250 units per package.

Specifications

Input Voltage Range: 9V to 20V
Output Voltage Range: 0V to 5V
Operating Temperature Range: -40°C to 85°C
Maximum Duty Cycle: 100%
Switching Frequency: 100kHz to 1MHz
Error Amplifier Bandwidth: 10MHz
Soft Start Time: 10ms

Pin Configuration

The UCC28180DR IC has the following pin configuration:

COMP: Compensation Pin
FB: Feedback Pin
CS: Current Sense Pin
GND: Ground Pin
VCC: Supply Voltage Pin
RT/CT: Timing Resistor/Capacitor Pin
SS/TR: Soft Start/Tracking Pin
OUT: Output Pin

Functional Features

Voltage mode control with precise regulation of output voltage and current
Overvoltage protection to prevent damage to the load
Undervoltage protection to ensure proper operation during low input voltage conditions
Overcurrent protection to safeguard against excessive current flow
Soft start function for smooth startup and reduced stress on components
Adjustable switching frequency for optimization of power supply performance

Advantages and Disadvantages

Advantages: - High-performance voltage mode controller - Precise control of output voltage and current - Offers various protection features - Compact SOIC-8 package for space-constrained applications - Wide operating temperature range

Disadvantages: - Limited input voltage range (9V to 20V) - Relatively low maximum duty cycle (100%) - Fixed switching frequency range (100kHz to 1MHz)

Working Principles

The UCC28180DR operates based on the voltage mode control technique. It compares the feedback voltage from the output with a reference voltage and adjusts the duty cycle of the PWM signal accordingly. This control mechanism ensures precise regulation of the output voltage and current.

During operation, the error amplifier compares the feedback voltage with the reference voltage and generates an error signal. This signal is then fed into the PWM comparator, which compares it with a sawtooth waveform generated by the oscillator. The resulting PWM signal controls the power switch, adjusting the duty cycle to maintain the desired output voltage.

Detailed Application Field Plans

The UCC28180DR is commonly used in the following application fields:

Switching Power Supplies: It is widely employed in offline and DC-to-DC power supplies, including AC-DC adapters, LED drivers, and industrial power systems.
Battery Chargers: The voltage mode control and protection features make it suitable for battery charging applications, such as mobile phone chargers and electric vehicle chargers.
Audio Amplifiers: The precise voltage regulation capability makes it useful in audio amplifiers, ensuring stable and clean power supply to the audio circuitry.

Detailed and Complete Alternative Models

UCC28181DR: Similar to UCC28180DR, but with extended input voltage range (4.5V to 20V).
UCC28182DR: Similar to UCC28180DR, but with higher maximum duty cycle (120%).
UCC28183DR: Similar to UCC28180DR, but with adjustable switching frequency range (50kHz to 1MHz).

These alternative models offer similar functionality and can be considered as replacements for UCC28180DR based on specific application requirements.

Word count: 497 words

Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van UCC28180DR in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of UCC28180DR in technical solutions:

Q: What is UCC28180DR? A: UCC28180DR is a high-performance current mode controller used in power supply applications.
Q: What are the key features of UCC28180DR? A: Some key features include wide input voltage range, adjustable switching frequency, integrated protection features, and high efficiency.
Q: How does UCC28180DR help in power supply designs? A: UCC28180DR provides precise control over the power supply output voltage and current, ensuring stable and efficient operation.
Q: Can UCC28180DR be used in both AC-DC and DC-DC power supply designs? A: Yes, UCC28180DR can be used in both AC-DC and DC-DC power supply designs, making it versatile for various applications.
Q: What is the maximum operating frequency of UCC28180DR? A: The maximum operating frequency of UCC28180DR is typically around 1 MHz.
Q: Does UCC28180DR have any built-in protection features? A: Yes, UCC28180DR has built-in protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown.
Q: Can UCC28180DR operate in a wide input voltage range? A: Yes, UCC28180DR can operate in a wide input voltage range, typically from 4.5V to 65V.
Q: Is UCC28180DR suitable for high-power applications? A: Yes, UCC28180DR is suitable for high-power applications as it can handle high currents and voltages.
Q: What is the typical efficiency of UCC28180DR? A: The typical efficiency of UCC28180DR is above 90%, making it highly efficient in power supply designs.
Q: Are there any application notes or reference designs available for UCC28180DR? A: Yes, Texas Instruments provides application notes and reference designs that can help in implementing UCC28180DR in various technical solutions.

Please note that the answers provided here are general and may vary depending on specific design requirements and application scenarios. It is always recommended to refer to the datasheet and relevant documentation for accurate information.