FAN7621BSJX

Product Overview

Category

FAN7621BSJX belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in power supply systems, particularly in switch-mode power supplies (SMPS), to regulate and control the flow of electrical power.

Characteristics

• FAN7621BSJX is a highly efficient and reliable power management IC.
• It offers advanced features for improved power conversion and control.
• The IC operates at high frequencies, enabling efficient power delivery.
• It provides protection mechanisms against overvoltage, overcurrent, and overheating.

Package

FAN7621BSJX is available in a compact and industry-standard package, making it suitable for various electronic devices and applications.

Essence

The essence of FAN7621BSJX lies in its ability to efficiently manage and regulate power flow in SMPS, ensuring stable and reliable operation of electronic devices.

Packaging/Quantity

The IC is typically packaged in tape and reel format, allowing for easy integration into automated manufacturing processes. It is available in quantities suitable for both small-scale and large-scale production.

Specifications

• Input Voltage Range: 10V - 20V
• Output Voltage Range: 3V - 15V
• Maximum Output Current: 2A
• Switching Frequency: 100kHz - 500kHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The FAN7621BSJX IC has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. FB: Feedback pin for voltage regulation
4. COMP: Compensation pin for stability control
5. CS: Current sense pin for current regulation
6. SD: Shutdown pin for enabling/disabling the IC
7. VCCP: Power supply input for internal control circuitry
8. HV: High-voltage pin for power switching

Functional Features

• Voltage regulation: FAN7621BSJX ensures stable output voltage by adjusting the duty cycle of the power switch.
• Current regulation: The IC monitors and regulates the output current to prevent overloading and ensure safe operation.
• Protection mechanisms: It incorporates various protection features, including overvoltage, overcurrent, and thermal shutdown protection.
• Soft-start function: FAN7621BSJX gradually ramps up the output voltage during startup to minimize stress on components.

Advantages and Disadvantages

Advantages

• High efficiency and reliability
• Advanced protection mechanisms
• Compact package size
• Wide operating temperature range

Disadvantages

• Limited maximum output current (2A)
• Requires external components for complete power supply implementation

Working Principles

FAN7621BSJX operates based on the principles of pulse width modulation (PWM). It generates a high-frequency square wave signal that controls the power switch's duty cycle, regulating the output voltage. By continuously monitoring the feedback voltage and current sense, the IC adjusts the duty cycle to maintain the desired output voltage and current levels.

Detailed Application Field Plans

FAN7621BSJX finds extensive application in various electronic devices and systems, including: - Desktop computers and servers - LED lighting systems - Consumer electronics (e.g., televisions, audio amplifiers) - Industrial power supplies - Automotive electronics

Detailed and Complete Alternative Models

• FAN7621ASJX
• FAN7621CSJX
• FAN7621DSJX
• FAN7621ESJX
• FAN7621FSJX

These alternative models offer similar functionality and characteristics, providing flexibility in choosing the most suitable IC for specific applications.

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