The THX206H is a highly integrated power switch primarily designed for use in offline AC-DC power supply applications. It combines a PWM controller with a power MOSFET to deliver a cost-effective and compact solution for various power conversion needs. This IC is suitable for applications such as mobile chargers, adapters, and auxiliary power supplies.

Applications

• Mobile phone chargers
• Adapters for portable devices
• Standby power supplies for appliances
• LED lighting power supplies

Features

• Integrated PWM controller and power MOSFET
• High-voltage start-up circuit
• Current-mode PWM control
• Cycle-by-cycle current limiting
• Over-temperature protection (OTP)
• Over-voltage protection (OVP)
• Under-voltage lockout (UVLO)
• Frequency jittering for improved EMI performance

Benefits

• Reduced component count simplifies the design process
• High efficiency operation minimizes energy waste
• Comprehensive protection features ensure system reliability
• Small package size allows for compact designs
• Improved EMI characteristics reduce noise
• Cost-effective power supply solution

Additional Details

The THX206H employs a current-mode PWM control scheme, which provides excellent line regulation and load regulation. The integrated high-voltage start-up circuit eliminates the need for external start-up resistors, improving efficiency and reducing BOM cost. The cycle-by-cycle current limiting function provides immediate protection against over-current conditions. The frequency jittering feature helps to spread the EMI energy, making it easier to meet EMI standards. Always refer to the manufacturer's datasheet for detailed specifications and application guidelines to ensure proper usage and optimal performance.