FAN9730C Current Mode PWM Controller SOP8

Description

The FAN7930C is a Green Current Mode PWM Controller specifically designed for power supply applications. Here are its key specifications and features:

Specifications:

• Input Voltage Range: 8V to 20V
• Operating Current: 3mA (typical)
• Standby Current: 200µA (maximum)
• Oscillation Frequency: 65kHz (typical)
• Frequency Modulation: ±4kHz (typical) for EMI reduction
• Maximum Duty Cycle: 75%
• Current Sense Threshold: 0.8V (typical)
• UVLO (Under Voltage Lockout):
  • Start Threshold: 15V (typical)
  • Stop Threshold: 8V (typical)
• Soft-Start Time: 4ms (typical)
• Slope Compensation: 60mV/µs (typical)
• Gate Drive Output: 600mA source current / 800mA sink current (typical)
• Thermal Shutdown: 140°C (typical)
• Package: 8-SOIC

Features:

• Green Current Mode PWM Controller: Designed for high-performance and high-efficiency power supplies.
• Frequency Modulation for EMI Reduction: Reduces electromagnetic interference by modulating the switching frequency.
• Internal Slope Compensation: Stabilizes the current loop in peak current mode control.
• Soft-Start Function: Gradually increases the output voltage during startup to prevent inrush current.
• Under Voltage Lockout (UVLO): Ensures the controller operates only when the input voltage is within the specified range.
• Overload Protection (OLP): Protects the power supply from excessive load conditions.
• Over-Temperature Protection (OTP): Shuts down the controller when the temperature exceeds a safe threshold.
• High-Current Gate Driver: Capable of driving external MOSFETs with high efficiency.
• Low Standby Current: Reduces power consumption during no-load conditions.

Applications:

• Switch Mode Power Supplies (SMPS): Suitable for use in various types of power supplies.
• Adapters and Chargers: Ideal for power adapters and battery chargers.
• Telecom Power Supplies: Can be used in power supplies for telecommunications equipment.
• Consumer Electronics: Suitable for power supply applications in consumer electronic devices.

The FAN7930C is designed to provide high efficiency and reliability in power supply applications, with features that help reduce EMI, improve power factor, and protect against various fault conditions.