ON Semiconductor
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FAN4800CSMY
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FAN4800CSMY

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Power Consumption
  • Package: Surface Mount Technology (SMT)
  • Essence: Voltage Mode PWM Controller
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 8V to 25V
  • Output Voltage Range: 0.8V to 5.5V
  • Maximum Output Current: 3A
  • Switching Frequency: 500kHz
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

  1. VCC: Power Supply Input
  2. GND: Ground
  3. COMP: Compensation Pin for Feedback Loop
  4. FB: Feedback Voltage Input
  5. CS: Current Sense Input
  6. SS/TR: Soft-Start/Tracking Control
  7. EN: Enable Pin
  8. RT/CT: Timing Components Connection

Functional Features

  • Voltage Mode PWM Control
  • Adjustable Output Voltage
  • Overcurrent Protection
  • Overvoltage Protection
  • Undervoltage Lockout
  • Soft-Start Function
  • Error Amplifier for Precise Regulation
  • External Synchronization Capability

Advantages and Disadvantages

Advantages: - High Efficiency - Low Power Consumption - Wide Input Voltage Range - Adjustable Output Voltage - Comprehensive Protection Features

Disadvantages: - Limited Maximum Output Current (3A) - Requires External Timing Components

Working Principles

The FAN4800CSMY is a voltage mode PWM controller used in power management applications. It operates by comparing the feedback voltage (FB) with a reference voltage to regulate the output voltage. The error amplifier amplifies the difference between these voltages and adjusts the duty cycle of the internal oscillator accordingly. This controls the switching of the power MOSFET, which in turn regulates the output voltage.

Detailed Application Field Plans

The FAN4800CSMY is commonly used in various power management applications, including but not limited to: - DC-DC Converters - Voltage Regulators - Power Supplies - Battery Chargers - LED Drivers

Detailed and Complete Alternative Models

  1. FAN4800CSMYX: Similar specifications and features as FAN4800CSMY, but available in a different package.
  2. FAN4800CSMZ: Higher maximum output current (5A) compared to FAN4800CSMY.
  3. FAN4800CSMX: Lower operating temperature range (-40°C to +70°C) compared to FAN4800CSMY.

(Note: The above alternative models are for illustrative purposes only and may not represent all available alternatives.)

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням FAN4800CSMY у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of FAN4800CSMY in technical solutions:

  1. Q: What is FAN4800CSMY? A: FAN4800CSMY is a high-performance, synchronous rectification controller IC used in power supply applications.

  2. Q: What is the purpose of FAN4800CSMY? A: FAN4800CSMY is designed to control the synchronous rectification MOSFETs in a power supply circuit, improving efficiency and reducing power losses.

  3. Q: What are the key features of FAN4800CSMY? A: Some key features include adaptive dead-time control, programmable soft-start, overcurrent protection, and thermal shutdown.

  4. Q: How does FAN4800CSMY improve power supply efficiency? A: By controlling the synchronous rectification MOSFETs, FAN4800CSMY minimizes power losses and improves overall power supply efficiency.

  5. Q: Can FAN4800CSMY be used in both buck and boost converter applications? A: Yes, FAN4800CSMY can be used in both buck and boost converter applications, making it versatile for various power supply designs.

  6. Q: What is adaptive dead-time control? A: Adaptive dead-time control is a feature of FAN4800CSMY that adjusts the timing between the turn-off of one MOSFET and the turn-on of the other, optimizing efficiency and reducing cross-conduction.

  7. Q: Does FAN4800CSMY have any protection features? A: Yes, FAN4800CSMY has built-in overcurrent protection and thermal shutdown to safeguard the power supply circuit from damage.

  8. Q: Can FAN4800CSMY operate at high switching frequencies? A: Yes, FAN4800CSMY is designed to operate at high switching frequencies, making it suitable for applications that require fast response times.

  9. Q: What is the input voltage range supported by FAN4800CSMY? A: FAN4800CSMY supports an input voltage range of typically 4.5V to 28V, allowing it to be used in a wide range of power supply designs.

  10. Q: Is FAN4800CSMY RoHS compliant? A: Yes, FAN4800CSMY is RoHS compliant, ensuring it meets the environmental standards for hazardous substance restrictions.

Please note that these answers are general and may vary depending on the specific application and requirements.