UCC28910DR

Product Overview

Category

UCC28910DR 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 LED drivers.

Characteristics

• UCC28910DR is a high-performance synchronous rectifier controller.
• It operates at a wide input voltage range, making it suitable for different power supply designs.
• The device incorporates advanced features such as adaptive dead-time control and cycle-by-cycle current limit protection.
• It offers excellent efficiency and reliability in power management applications.

Package

UCC28910DR is available in a small outline package (SOIC) with eight pins. This package provides ease of integration into circuit boards and ensures efficient heat dissipation.

Essence

The essence of UCC28910DR lies in its ability to efficiently control synchronous rectification in power management systems. By optimizing the rectification process, it minimizes power losses and enhances overall system performance.

Packaging/Quantity

UCC28910DR is typically sold in reels or tubes, containing a quantity of 250 units per package.

Specifications

• Input Voltage Range: 4.5V to 15V
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to 125°C
• Switching Frequency: Up to 1MHz
• Maximum Duty Cycle: 90%
• Quiescent Current: 100µA (typical)

Pin Configuration

UCC28910DR features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. FB: Feedback pin for output voltage regulation
4. COMP: Compensation pin for stability control
5. CS: Current sense pin for current limit protection
6. SS: Soft-start pin for controlled startup
7. DRVH: High-side gate driver output
8. DRVL: Low-side gate driver output

Functional Features

1. Adaptive Dead-Time Control: UCC28910DR adjusts the dead-time between high-side and low-side MOSFETs to optimize efficiency and minimize shoot-through current.
2. Cycle-by-Cycle Current Limit Protection: The device monitors the current flowing through the power stage and provides protection by limiting the maximum current on a cycle-by-cycle basis.
3. Soft-Start Functionality: UCC28910DR incorporates a soft-start feature that gradually ramps up the output voltage during startup, preventing excessive inrush current.

Advantages and Disadvantages

Advantages

• High-performance synchronous rectifier controller
• Wide input voltage range for versatile applications
• Advanced features for improved efficiency and reliability
• Compact package for easy integration

Disadvantages

• Limited to power management applications
• Requires additional external components for complete power supply design

Working Principles

UCC28910DR operates by controlling the switching of high-side and low-side MOSFETs in a synchronous rectification circuit. It utilizes feedback from the output voltage to regulate the duty cycle and maintain a stable output. By adjusting the dead-time and monitoring the current, it ensures efficient power transfer and protects the system from overcurrent conditions.

Detailed Application Field Plans

UCC28910DR finds extensive application in various power management systems, including: - Switch-mode power supplies (SMPS) - Battery chargers - LED drivers - DC-DC converters - Motor control systems

Its versatility and performance make it suitable for both consumer electronics and industrial applications.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to UCC28910DR are: - UCC28911DR - UCC28912DR - UCC28913DR - UCC28914DR

These models offer similar functionality and characteristics, providing flexibility in power management system design.

In conclusion, UCC28910DR is a high-performance synchronous rectifier controller used in various power management applications. Its advanced features, compact package, and wide input voltage range make it an ideal choice for efficient and reliable power supply designs.