FAN6921AMLMY

Product Overview

Category

FAN6921AMLMY belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power supply applications, specifically for controlling and driving power factor correction (PFC) circuits.

Characteristics

• FAN6921AMLMY is a highly efficient and reliable IC designed for PFC applications.
• It offers excellent performance in terms of power factor correction and efficiency.
• The IC operates at high frequencies, allowing for compact and cost-effective designs.
• It incorporates various protection features to ensure safe operation and prevent damage to the circuitry.

Package

FAN6921AMLMY is available in a small outline package (SOP) with a specific pin configuration.

Essence

The essence of FAN6921AMLMY lies in its ability to efficiently control and drive power factor correction circuits, resulting in improved power quality and energy efficiency.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 85VAC to 265VAC
• Output Voltage Range: 400VDC to 450VDC
• Operating Frequency: 65kHz to 100kHz
• Maximum Output Power: 200W to 500W
• Efficiency: Up to 98%
• Protection Features: Overvoltage protection, overcurrent protection, thermal shutdown

Detailed Pin Configuration

The FAN6921AMLMY IC has the following pin configuration:

1. VCC - Power supply voltage input
2. GND - Ground reference
3. CS - Current sense input
4. FB - Feedback input
5. COMP - Compensation pin
6. RT/CT - Timing resistor/capacitor connection
7. DRAIN - Power MOSFET drain connection
8. SOURCE - Power MOSFET source connection

Functional Features

• High power factor correction capability
• Precise current sensing and feedback control
• Soft-start function for smooth startup
• Frequency jittering to reduce electromagnetic interference (EMI)
• Protection against overvoltage, overcurrent, and thermal issues

Advantages and Disadvantages

Advantages

• High efficiency leading to energy savings
• Compact design due to high operating frequency
• Reliable performance with built-in protection features
• Improved power quality and reduced harmonic distortion

Disadvantages

• Requires careful circuit design and layout considerations
• Limited output power range compared to some other PFC ICs
• Sensitive to external noise and disturbances

Working Principles

FAN6921AMLMY operates based on the principle of power factor correction. It utilizes a boost converter topology to regulate the input current waveform and align it with the input voltage waveform, resulting in a high power factor. The IC controls the switching of the power MOSFET to maintain the desired output voltage and achieve efficient power transfer.

Detailed Application Field Plans

FAN6921AMLMY finds application in various power supply systems that require power factor correction. Some common application fields include:

1. LED lighting systems
2. Switch-mode power supplies (SMPS)
3. Industrial motor drives
4. Uninterruptible power supplies (UPS)
5. Electric vehicle charging stations

Detailed and Complete Alternative Models

Some alternative models that can be considered for power factor correction applications are:

1. FAN6920MY
2. FAN6922MY
3. FAN6923MY
4. FAN6924MY
5. FAN6925MY

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

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