ON Semiconductor
Bild kan vara representation.
Se specifikationer för produktinformation.
FAN6921AMRMY
Visa detalj Datablad

FAN6921AMRMY

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Efficiency, Low Power Consumption
  • Package: SOP-8 (Small Outline Package)
  • Essence: PWM Controller for Switching Power Supplies
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 9V to 30V
  • Output Voltage Range: 5V to 24V
  • Maximum Output Current: 2.5A
  • Operating Frequency: 65kHz to 115kHz
  • Duty Cycle Range: 0% to 100%
  • Soft Start Time: 10ms
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

  1. VCC: Power Supply Input
  2. GND: Ground
  3. FB: Feedback Pin for Output Voltage Regulation
  4. COMP: Compensation Pin for Loop Stability
  5. CS: Current Sense Pin for Overcurrent Protection
  6. SS: Soft Start Pin for Controlled Startup
  7. RT: Timing Resistor Pin for Oscillator Frequency Adjustment
  8. CT: Timing Capacitor Pin for Oscillator Frequency Adjustment

Functional Features

  • Pulse Width Modulation (PWM) Control
  • Constant Voltage (CV) and Constant Current (CC) Modes
  • Overcurrent Protection (OCP)
  • Soft Start Function for Smooth Startup
  • Adjustable Oscillator Frequency
  • Internal Leading Edge Blanking (LEB)
  • Under-Voltage Lockout (UVLO) Protection
  • Thermal Shutdown Protection

Advantages

  • High Efficiency Conversion
  • Wide Input Voltage Range
  • Compact SOP-8 Package
  • Low Power Consumption
  • Robust Overcurrent Protection
  • Reliable Thermal Shutdown Protection

Disadvantages

  • Limited Maximum Output Current (2.5A)
  • Restricted Operating Temperature Range (-40°C to +85°C)

Working Principles

The FAN6921AMRMY is a PWM controller designed for switching power supplies. It operates by regulating the duty cycle of the PWM signal to control the output voltage. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle accordingly to maintain a stable output. The compensation pin (COMP) ensures loop stability, while the current sense pin (CS) provides overcurrent protection. The soft start pin (SS) enables controlled startup, preventing excessive inrush current. The timing resistor (RT) and capacitor (CT) pins allow adjustment of the oscillator frequency, providing flexibility in design.

Detailed Application Field Plans

The FAN6921AMRMY is widely used in various applications, including: - AC/DC Power Adapters - LED Lighting Systems - Battery Chargers - Industrial Power Supplies - Telecom Equipment

Detailed and Complete Alternative Models

  • FAN6920MRMY
  • FAN6922MRMY
  • FAN6923MRMY
  • FAN6924MRMY
  • FAN6925MRMY

These alternative models offer similar functionality and can be used as replacements for the FAN6921AMRMY in different applications.

Word count: 346 words

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av FAN6921AMRMY i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of FAN6921AMRMY in technical solutions:

Q1: What is FAN6921AMRMY? A1: FAN6921AMRMY is a specific model of integrated circuit (IC) that is commonly used in power supply applications.

Q2: What are the main features of FAN6921AMRMY? A2: The main features of FAN6921AMRMY include a high-voltage startup, current mode control, built-in soft-start, and various protection features like overvoltage and overcurrent protection.

Q3: What are the typical applications of FAN6921AMRMY? A3: FAN6921AMRMY is typically used in offline flyback converters, LED lighting drivers, and other power supply applications where high efficiency and reliable performance are required.

Q4: What is the input voltage range supported by FAN6921AMRMY? A4: FAN6921AMRMY supports an input voltage range of typically 85VAC to 265VAC, making it suitable for universal input applications.

Q5: What is the maximum output power that can be achieved with FAN6921AMRMY? A5: The maximum output power depends on the specific design and application, but FAN6921AMRMY can handle power levels up to several hundred watts.

Q6: Does FAN6921AMRMY have any built-in protection features? A6: Yes, FAN6921AMRMY has built-in protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

Q7: Can FAN6921AMRMY operate in continuous or discontinuous conduction mode? A7: FAN6921AMRMY can operate in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), depending on the specific design requirements.

Q8: What is the typical efficiency of FAN6921AMRMY? A8: The efficiency of FAN6921AMRMY depends on various factors like input voltage, output power, and load conditions. However, it can achieve high efficiencies typically above 90%.

Q9: Does FAN6921AMRMY require any external components for operation? A9: Yes, FAN6921AMRMY requires external components such as an inductor, capacitors, and resistors to form a complete power supply circuit.

Q10: Is FAN6921AMRMY RoHS compliant? A10: Yes, FAN6921AMRMY is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive set by the European Union.

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