UCC28510N - English Editing Encyclopedia Entry

Product Overview

Category

UCC28510N belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various power supply systems, including switch-mode power supplies (SMPS), battery chargers, and LED drivers.

Characteristics

• UCC28510N is a high-performance, low-power current mode PWM controller.
• It operates with a wide input voltage range, making it suitable for diverse applications.
• The IC offers excellent line and load regulation, ensuring stable output voltages.
• It incorporates various protection features such as overvoltage, undervoltage, and overcurrent protection.
• UCC28510N is known for its high efficiency and reliability.

Package and Quantity

The UCC28510N IC is available in a standard 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels containing 250 units.

Specifications

• Input Voltage Range: 4.5V to 65V
• Output Voltage Range: 0.8V to 60V
• Maximum Switching Frequency: 1MHz
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 100µA (typical)

Pin Configuration

The UCC28510N IC has the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| COMP FB |-- Pin 2: Feedback (FB) --| CS RT |-- Pin 3: Current Sense (CS) --| SS/EN OUT |-- Pin 4: Soft Start/Enable (SS/EN) --| RT/CLK NC |-- Pin 5: Resistor Timing/Clock (RT/CLK) --| VREF NC |-- Pin 6: Voltage Reference (VREF) --| INV NC |-- Pin 7: Inverting Input (INV) --| NC NC |-- Pin 8: No Connection (NC) |___________| ```

Functional Features

• Current mode control with adjustable slope compensation.
• Soft start and enable functions for controlled startup and shutdown.
• Error amplifier with high gain and low offset voltage for precise regulation.
• Adjustable frequency oscillator for flexible switching frequency selection.
• Overvoltage, undervoltage, and overcurrent protection mechanisms ensure system safety.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Excellent line and load regulation ensure stable output voltages.
• High efficiency leads to reduced power consumption.
• Incorporation of various protection features enhances system reliability.

Disadvantages

• Limited pin configuration may restrict certain circuit designs.
• Requires external components for complete functionality, increasing system complexity.

Working Principles

The UCC28510N operates based on the current mode control technique. It compares the sensed current through the power switch with a reference voltage to generate a control signal. This control signal regulates the duty cycle of the power switch, ensuring the desired output voltage is maintained. The IC also incorporates slope compensation to prevent subharmonic oscillations and improve stability.

Detailed Application Field Plans

The UCC28510N IC finds extensive application in the following areas:

1. Switch-mode power supplies (SMPS) for computers, telecommunication equipment, and industrial machinery.
2. Battery chargers for electric vehicles, portable devices, and renewable energy systems.
3. LED drivers for lighting applications, including residential, commercial, and automotive lighting.

Detailed and Complete Alternative Models

1. UCC28511N: Similar to UCC28510N, but with additional features for enhanced protection and fault detection.
2. UCC28512N: A higher voltage version of UCC28510N, suitable for applications requiring an extended input voltage range.
3. UCC28513N: Designed for high-frequency applications, offering improved efficiency and reduced electromagnetic interference.

These alternative models provide similar functionality to UCC28510N while catering to specific requirements of different applications.

In conclusion, the UCC28510N is a versatile and reliable IC used in power management applications. Its wide input voltage range, excellent regulation, and various protection features make it a popular choice among designers. With its numerous advantages and a few limitations, this IC plays a crucial role in ensuring efficient and stable power supply systems.

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