UCC28528DWRG4 - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High-performance synchronous rectifier controller - Designed for use in AC/DC power supplies - Provides high efficiency and low standby power consumption

Package: SOIC-16

Essence: The UCC28528DWRG4 is a power management IC that serves as a synchronous rectifier controller. It is primarily used in AC/DC power supplies to improve efficiency and reduce standby power consumption.

Packaging/Quantity: The UCC28528DWRG4 is available in a SOIC-16 package. It is typically sold in reels or tubes, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 30V
• Output Voltage Range: 0V to 30V
• Maximum Operating Frequency: 1MHz
• Operating Temperature Range: -40°C to 125°C
• Quiescent Current: 100µA (typical)
• Maximum Duty Cycle: 90%

Detailed Pin Configuration

The UCC28528DWRG4 has a total of 16 pins. The pin configuration is as follows:

1. VDD - Power supply input
2. GND - Ground reference
3. FB - Feedback voltage input
4. COMP - Compensation node for error amplifier
5. SS - Soft-start capacitor connection
6. RT/CT - Timing resistor/capacitor connection
7. CS - Current sense input
8. DRVH - High-side MOSFET gate driver output
9. DRVL - Low-side MOSFET gate driver output
10. SYNC - Synchronization input
11. EN/UVLO - Enable/Undervoltage lockout input
12. VREF - Reference voltage output
13. PGND - Power ground reference
14. VCC - Internal bias voltage output
15. VSENSE - Voltage sense input
16. VOUT - Output voltage

Functional Features

• High-performance synchronous rectifier controller
• Adaptive dead-time control for improved efficiency
• Programmable soft-start and current limit
• Overvoltage protection
• Undervoltage lockout
• Synchronization capability for multi-phase operation

Advantages and Disadvantages

Advantages: - High efficiency due to synchronous rectification - Low standby power consumption - Adaptive dead-time control improves overall performance - Programmable features allow customization for specific applications - Overvoltage protection ensures safe operation

Disadvantages: - Limited operating temperature range (-40°C to 125°C) - Requires external components for complete power supply design - Synchronization capability may not be required in all applications

Working Principles

The UCC28528DWRG4 operates as a synchronous rectifier controller in AC/DC power supplies. It utilizes adaptive dead-time control to optimize the switching of high-side and low-side MOSFETs, resulting in high efficiency. The IC incorporates a feedback loop to regulate the output voltage and provides programmable features such as soft-start and current limit. It also includes protection mechanisms like overvoltage protection and undervoltage lockout to ensure safe operation.

Detailed Application Field Plans

The UCC28528DWRG4 is commonly used in various applications, including: 1. AC/DC power supplies for consumer electronics 2. Industrial power systems 3. LED lighting drivers 4. Telecom power supplies 5. Server power supplies

Detailed and Complete Alternative Models

1. UCC28528EVM-001: Evaluation module for UCC28528DWRG4
2. UCC28528DWR: Similar specifications and pin configuration, different package (SOIC-8)
3. UCC28528D: Similar specifications and pin configuration, different package (PDIP-16)
4. UCC28528DGNR: Similar specifications and pin configuration, different package (MSOP-10)

These alternative models offer similar functionality to the UCC28528DWRG4 and can be considered as replacements depending on specific requirements.

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