UCC28510DW

Basic Information Overview

Category: Integrated Circuit (IC)
Use: Power Management
Characteristics:
- High efficiency
- Wide input voltage range
- Low standby power consumption
Package: SOIC (Small Outline Integrated Circuit)
Essence: PWM Controller for Offline Power Supplies
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

Input Voltage Range: 9V to 100V
Output Voltage Range: 5V to 24V
Maximum Output Current: 2A
Switching Frequency: 100kHz to 1MHz
Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The UCC28510DW has the following pin configuration:

VDD: Power supply input
COMP: Compensation pin for feedback control
FB: Feedback pin for output voltage regulation
CS: Current sense pin for current limit protection
GND: Ground reference
RT/CT: Timing resistor/capacitor connection for frequency control
SS/TR: Soft-start/Tracking pin for controlled startup and tracking
OUT: Output pin for regulated voltage

Functional Features

Primary-side control for offline power supplies
Constant voltage (CV) and constant current (CC) operation modes
Cycle-by-cycle current limit protection
Adjustable switching frequency
Soft-start for controlled startup
Overvoltage and undervoltage protection
Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High efficiency power management solution - Wide input voltage range allows for versatile applications - Low standby power consumption reduces energy waste

Disadvantages: - Limited maximum output current of 2A - Requires external components for complete power supply design

Working Principles

The UCC28510DW is a pulse width modulation (PWM) controller designed for offline power supplies. It operates in primary-side control mode, where the controller senses the output voltage and adjusts the duty cycle of the switching transistor to regulate the output voltage.

The feedback loop consists of the COMP and FB pins, which are connected to an external voltage divider network. The controller compares the feedback voltage with a reference voltage to generate an error signal. This error signal is then used to adjust the duty cycle of the PWM signal, controlling the output voltage.

The CS pin is used for current limit protection. By monitoring the voltage across a sense resistor in series with the load, the controller can detect overcurrent conditions and limit the duty cycle accordingly.

Detailed Application Field Plans

The UCC28510DW is commonly used in various applications, including:

AC-DC power supplies
LED lighting systems
Battery chargers
Industrial automation equipment
Telecommunication devices

Detailed and Complete Alternative Models

UCC28070DW: Similar functionality with higher maximum output current of 3A.
UCC28600DW: Integrated flyback controller with additional features like frequency jittering and burst mode operation.
UCC28950DW: High-voltage synchronous rectifier controller for improved efficiency in power supply designs.

These alternative models provide similar functionality to the UCC28510DW but may have different specifications or additional features depending on the specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací UCC28510DW v technických řešeních

Sure! Here are 10 common questions and answers related to the application of UCC28510DW in technical solutions:

Q: What is UCC28510DW? A: UCC28510DW is a high-performance, synchronous rectifier controller IC designed for use in power supply applications.
Q: What are the key features of UCC28510DW? A: Some key features of UCC28510DW include high efficiency, low standby power consumption, adjustable dead-time control, and protection features like overcurrent and overvoltage protection.
Q: How does UCC28510DW improve power supply efficiency? A: UCC28510DW utilizes synchronous rectification, which reduces power losses in the rectifier diodes, resulting in higher overall power supply efficiency.
Q: Can UCC28510DW be used in both AC-DC and DC-DC power supply designs? A: Yes, UCC28510DW can be used in both AC-DC and DC-DC power supply designs, making it versatile for various applications.
Q: What is dead-time control, and why is it important? A: Dead-time control refers to the time delay between turning off one switch and turning on the other in a synchronous rectifier configuration. It is important to prevent shoot-through current and maximize efficiency.
Q: Does UCC28510DW have built-in protection features? A: Yes, UCC28510DW has built-in protection features such as overcurrent protection (OCP), overvoltage protection (OVP), and thermal shutdown.
Q: Can UCC28510DW operate at high switching frequencies? A: Yes, UCC28510DW is capable of operating at high switching frequencies, allowing for compact and efficient power supply designs.
Q: What is the maximum input voltage that UCC28510DW can handle? A: The maximum input voltage for UCC28510DW is typically around 100V, but it is always recommended to refer to the datasheet for specific details.
Q: Can UCC28510DW be used in automotive applications? A: Yes, UCC28510DW is suitable for automotive applications as it meets the necessary requirements for automotive-grade components.
Q: Are there any application notes or reference designs available for UCC28510DW? A: Yes, Texas Instruments provides application notes and reference designs that can help engineers in implementing UCC28510DW in their designs. These resources can be found on the manufacturer's website.

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 consult with technical experts for accurate information.