Applications:

• LCD TVs
• LED Lighting
• Audio Amplifiers
• Power Adapters

Features:

• LLC Resonant Control: Enables high efficiency and low EMI.
• Adaptive Dead-Time Control: Optimizes ZVS operation for different loads and operating conditions.
• Burst-Mode Operation: Reduces power consumption during light-load conditions.
• Over-Current Protection (OCP): Protects the converter from over-current conditions.
• Over-Voltage Protection (OVP): Protects the converter from over-voltage conditions.
• Over-Temperature Protection (OTP): Protects the converter from over-temperature conditions.
• Under-Voltage Lockout (UVLO): Prevents the MOSFETs from operating at low voltages, preventing damage.

Benefits:

• High Efficiency: LLC resonant control and adaptive dead-time control maximize efficiency.
• Low Standby Power Consumption: Burst-mode operation minimizes power consumption during light-load conditions.
• Robust Protection: Comprehensive protection features ensure reliable operation.
• Simplified Design: Integrated features simplify the design process.

Additional Details:

The FAN7687 operates by controlling the switching frequency of the MOSFETs in the LLC resonant converter. The adaptive dead-time control optimizes ZVS operation, while the burst-mode operation reduces power consumption during light-load conditions. The integrated protection features prevent damage to the converter in the event of a fault condition.

Key Specifications:

• Operating Frequency: Up to several hundred kHz
• Operating Voltage: Wide operating voltage range

The FAN7687 provides a high-performance and cost-effective solution for designing efficient and robust LLC resonant converters.