DESCRIPTION

· The FAN105A is an offline Primary-Side-Regulation (PSR) PWM controller with Quasi-Resonant (QR) mode, designed for constant-voltage (CV) and constant-current (CC) control in Travel Adapter (TA) applications.

· It integrates MWSA VER® Technology for energy-efficient power supplies, offering cost-effective and simplified circuit designs.

· Can operate standalone or in conjunction with the secondary-side SR controller FAN6240 for higher power applications.

FEATURES

· MWSA VER Technology ensures ultra-low standby power consumption, meeting Energy Star’s 5-Star Level (<30 mW with HV FET).

· Primary-Side Regulation eliminates the need for secondary-side feedback components.

· Valley Switch Operation enhances average efficiency.

· Programmable Cable Drop Compensation (CDC) with one external resistor.

· Low EMI emissions and common mode noise.

· Comprehensive protection features including cycle-by-cycle current limiting, output short-circuit protection, and thermal shutdown.

APPLICATIONS

· Travel Adapters for smartphones, feature phones, and tablet PCs.

· AC-DC adapters for portable devices requiring CV/CC control.