FSQ0265RN

Product Overview

Category

FSQ0265RN belongs to the category of integrated power switch ICs.

Use

It is primarily used in power supply applications, specifically for offline switching mode power supplies (SMPS).

Characteristics

• Integrated power switch with high voltage startup circuitry
• Low standby power consumption
• Built-in frequency jittering for EMI reduction
• Pulse-by-pulse current limiting
• Overload protection
• Overvoltage protection
• Thermal shutdown protection

Package

FSQ0265RN is available in a compact and industry-standard TO-220 package.

Essence

The essence of FSQ0265RN lies in its ability to efficiently regulate power supply in SMPS applications while providing various protection mechanisms.

Packaging/Quantity

FSQ0265RN is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 85VAC to 265VAC
• Output Power: Up to 65W
• Operating Frequency: 66kHz
• Maximum Duty Cycle: 72%
• Standby Power Consumption: Less than 100mW
• Operating Temperature Range: -40°C to 150°C

Detailed Pin Configuration

1. VCC: Power supply input
2. Drain: High-voltage power MOSFET drain connection
3. GND: Ground reference
4. FB: Feedback pin for regulating output voltage
5. CS: Current sense pin for pulse-by-pulse current limiting
6. COMP: Compensation pin for stability control
7. SS: Soft-start pin for controlling startup behavior
8. NC: No connection

Functional Features

• High-voltage startup circuitry eliminates the need for an auxiliary bias winding
• Frequency jittering reduces electromagnetic interference (EMI)
• Pulse-by-pulse current limiting protects against overload conditions
• Overvoltage protection safeguards the system from excessive voltage spikes
• Thermal shutdown protection prevents overheating and damage

Advantages and Disadvantages

Advantages

• Integrated power switch simplifies circuit design
• Low standby power consumption reduces energy waste
• Comprehensive protection mechanisms enhance system reliability
• Compact TO-220 package facilitates easy integration

Disadvantages

• Limited output power capability (up to 65W)
• Operating frequency may not be suitable for all applications
• Relatively high operating temperature range

Working Principles

FSQ0265RN operates based on a switching mode power supply principle. It regulates the output voltage by controlling the duty cycle of the internal power MOSFET. The integrated high-voltage startup circuitry eliminates the need for an auxiliary bias winding, reducing component count and cost.

Detailed Application Field Plans

FSQ0265RN finds extensive application in various power supply systems, including but not limited to: - Consumer electronics - LED lighting - Industrial equipment - Telecommunications - Automotive electronics

Detailed and Complete Alternative Models

1. FSQ0365RN
2. FSQ0465RN
3. FSQ0565RN
4. FSQ0665RN
5. FSQ0765RN

These alternative models offer similar functionality and characteristics, with varying output power capabilities.

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