UCC28704DBVT-1

Product Overview

Category

UCC28704DBVT-1 belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for power management applications, specifically in offline flyback converters.

Characteristics

• Integrated circuit designed for power management
• Suitable for offline flyback converters
• Compact package for easy integration
• High efficiency and low standby power consumption
• Wide input voltage range
• Overvoltage and overcurrent protection features

Package

UCC28704DBVT-1 is available in a small SOT-23-6 package. This package offers a compact size and allows for easy integration into various electronic devices.

Essence

The essence of UCC28704DBVT-1 lies in its ability to efficiently manage power in offline flyback converters. It provides reliable and stable power supply solutions for a wide range of applications.

Packaging/Quantity

UCC28704DBVT-1 is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 30V
• Output Voltage Range: 0.8V to 28V
• Maximum Output Power: 10W
• Switching Frequency: 100kHz to 1MHz
• Operating Temperature Range: -40°C to 125°C
• Package Type: SOT-23-6

Detailed Pin Configuration

UCC28704DBVT-1 has six pins arranged as follows:

1. VDD: Power supply pin for the IC.
2. GND: Ground reference pin.
3. FB: Feedback pin for regulating the output voltage.
4. COMP: Compensation pin for stability control.
5. CS: Current sense pin for overcurrent protection.
6. HV: High voltage pin for connecting to the primary side of the flyback converter.

Functional Features

• Constant voltage (CV) and constant current (CC) regulation modes.
• Soft-start feature for smooth power-up.
• Frequency jittering for reduced electromagnetic interference (EMI).
• Overvoltage protection (OVP) and overcurrent protection (OCP) features.
• Cycle-by-cycle current limit for enhanced safety.

Advantages and Disadvantages

Advantages

• High efficiency, leading to energy savings.
• Wide input voltage range allows for versatile applications.
• Compact package enables easy integration into space-constrained designs.
• Comprehensive protection features enhance system reliability.
• Soft-start and frequency jittering reduce EMI.

Disadvantages

• Limited maximum output power may not be suitable for high-power applications.
• Requires additional external components for complete power management solution.

Working Principles

UCC28704DBVT-1 operates on the principle of a flyback converter. It regulates the output voltage by controlling the duty cycle of the switching transistor. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle accordingly. The IC also incorporates various protection mechanisms such as overvoltage and overcurrent protection to ensure safe operation.

Detailed Application Field Plans

UCC28704DBVT-1 finds application in various fields, including but not limited to: - Power adapters - LED lighting - Industrial power supplies - Home appliances - Battery chargers

Its compact size, wide input voltage range, and efficient power management capabilities make it suitable for a diverse range of applications.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to UCC28704DBVT-1 include: - UCC28704-Q1 - UCC28704EVM-002 - UCC28704EVM-003

These models provide comparable features and can be considered as alternatives based on specific application requirements.

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