STR-W6253D

Product Overview

Category

STR-W6253D belongs to the category of integrated circuits (ICs) specifically designed for power supply applications.

Use

This IC is primarily used in power supply units to regulate voltage and current flow, ensuring stable and efficient operation.

Characteristics

• High efficiency: The STR-W6253D offers high conversion efficiency, minimizing energy loss during power conversion.
• Compact package: It comes in a small form factor, making it suitable for space-constrained applications.
• Wide input voltage range: The IC can handle a wide range of input voltages, providing flexibility in various power supply designs.
• Overload protection: It incorporates built-in overload protection mechanisms to safeguard against excessive current or voltage conditions.
• Low standby power consumption: The STR-W6253D consumes minimal power in standby mode, contributing to energy savings.

Package

The STR-W6253D is available in a compact and robust package, ensuring durability and ease of integration into power supply circuits.

Essence

The essence of STR-W6253D lies in its ability to efficiently regulate power supply voltages, ensuring stable and reliable operation of electronic devices.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with varying quantities depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 85V - 265V AC
• Output Voltage: Adjustable, typically 5V - 24V DC
• Maximum Output Power: 25W
• Operating Temperature Range: -40°C to +125°C
• Switching Frequency: 65kHz

Detailed Pin Configuration

The STR-W6253D features a standard pin configuration consisting of the following pins:

1. VCC: Power supply input pin.
2. GND: Ground reference pin.
3. FB: Feedback pin for output voltage regulation.
4. COMP: Compensation pin for stability control.
5. DRAIN: High-voltage power switch pin.
6. SOURCE: Source pin for the internal MOSFET.

Functional Features

• Pulse Width Modulation (PWM) Control: The IC utilizes PWM control to regulate the output voltage, ensuring precise and stable power supply operation.
• Overload Protection: The STR-W6253D incorporates various protection mechanisms such as overcurrent and overvoltage protection, safeguarding the power supply unit and connected devices.
• Soft Start Function: It includes a soft start feature that gradually ramps up the output voltage upon power-on, preventing excessive inrush current.
• Frequency Jittering: This feature helps reduce electromagnetic interference (EMI) emissions, ensuring compliance with regulatory standards.

Advantages and Disadvantages

Advantages

• High efficiency leads to energy savings.
• Compact package allows for space-efficient designs.
• Wide input voltage range provides flexibility in power supply applications.
• Built-in overload protection enhances system reliability.
• Low standby power consumption contributes to energy efficiency.

Disadvantages

• Limited maximum output power of 25W may not be suitable for high-power applications.
• Requires careful consideration of thermal management due to operating temperature limitations.

Working Principles

The STR-W6253D operates on the principle of pulse width modulation (PWM). It regulates the output voltage by controlling the duty cycle of the switching signal applied to the internal power switch. By adjusting the duty cycle, the IC maintains a stable output voltage despite variations in input voltage or load conditions.

Detailed Application Field Plans

The STR-W6253D finds extensive application in various power supply units, including but not limited to: - AC-DC converters for consumer electronics - LED lighting power supplies - Industrial power supplies - Telecommunication equipment power modules

Detailed and Complete Alternative Models

• STR-W6754: Similar functionality with higher maximum output power of 50W.
• STR-W6200: Lower maximum output power of 15W but offers a wider operating temperature range.

These alternative models provide options for different power requirements and operating conditions.

In conclusion, the STR-W6253D is a highly efficient integrated circuit designed for power supply applications. Its compact size, wide input voltage range, and built-in protection mechanisms make it suitable for various electronic devices. However, designers should consider its limitations in terms of maximum output power and operating temperature range when selecting this IC for specific applications.