NCP1203GEVB

The NCP1203GEVB is an evaluation board designed around a PDIP8 package of NCP1203 fixed frequency flyback current mode PWM controller. The NCP1203 represents a major leap toward ultra compact switch mode power supplies. Due to a novel concept, the circuit allows the implementation of a complete offline battery charger or a standby SMPS with few external components. Furthermore, an integrated output short circuit protection lets the designer build an extremely low cost AC to DC wall adapter associated with a simplified feedback scheme. The power supply features short circuit and overvoltage protection, and delivers a 70W output at an efficiency greater than 80%.

• High voltage start up current source
• Auto recovery internal output short circuit protection
• Extremely low no load standby power
• Current mode with adjustable skip cycle capability
• Internal leading edge blanking
• 250mA peak current capability
• Direct optocoupler connection
• Undervoltage lockout at 7.6V typical
• Internally fixed frequency at 40KHz, 60KHz and 100KHz

Applications

Power Management, Consumer Electronics