The PN8305SPC is a high-performance off-line PWM power switch with integrated high voltage MOSFET, designed by Wuxi Chipown Micro-electronics Co., Ltd. It is primarily used in power supply applications for adapters, chargers, and LED lighting, offering high efficiency and low standby power consumption.

Applications:

• AC/DC adapters for mobile phones and other portable devices
• Chargers for batteries and power tools
• LED lighting power supplies
• Standby power supplies
• Auxiliary power supplies

Features:

• Integrated high voltage MOSFET
• Built-in high voltage start-up circuit
• Valley switching operation for high efficiency
• Frequency jittering for improved EMI performance
• Multiple protection features: over-voltage, over-current, over-temperature, and short-circuit protection
• Low standby power consumption (<70mW)
• Adjustable output voltage
• Available in SOP-7 package

Benefits:

• High Efficiency: Valley switching operation minimizes switching losses, resulting in high efficiency.
• Low Standby Power: Reduces energy consumption in standby mode, meeting energy efficiency standards.
• Robust Protection: Multiple protection features ensure reliable operation and prevent damage to the power supply and connected devices.
• Simplified Design: Integrated MOSFET and start-up circuit reduce external component count, simplifying the design process.
• Improved EMI Performance: Frequency jittering reduces electromagnetic interference, improving system reliability.

Additional Details:

The PN8305SPC employs advanced PWM control techniques to achieve high efficiency and low standby power consumption. The integrated high voltage MOSFET simplifies the power supply design and reduces the external component count. The device is designed to meet various international safety and energy efficiency standards. The over-voltage protection (OVP) feature protects the output voltage from exceeding a safe level. The over-current protection (OCP) limits the output current to prevent damage from overload conditions. The over-temperature protection (OTP) shuts down the device if the junction temperature exceeds a safe limit. The adjustable output voltage allows for customization to meet different application requirements. The device's compact SOP-7 package makes it suitable for space-constrained applications.