The PN8034NSC-T1 is a high-performance off-line PWM power switch manufactured by Wuxi. This power switch is designed for flyback converter applications and is commonly used in power adapters, chargers, and other low-power applications. It integrates a high-voltage power MOSFET and a PWM controller into a single package, simplifying the design and reducing the component count of power supply circuits.

Applications

• Power adapters for mobile phones and tablets
• Chargers for battery-powered devices
• Standby power supplies
• LED lighting power supplies
• Small appliance power supplies

Features

• Integrated high-voltage power MOSFET
• PWM controller with frequency jittering
• Over-voltage protection (OVP)
• Over-current protection (OCP)
• Over-temperature protection (OTP)
• Short-circuit protection (SCP)
• Low standby power consumption

Benefits

• Reduced component count and simplified design
• Improved efficiency and reduced power losses
• Enhanced system reliability due to integrated protection features
• Lower EMI due to frequency jittering
• Reduced standby power consumption, meeting energy efficiency standards

Technical Specifications

The PN8034NSC-T1 typically operates with an input voltage range of 85VAC to 265VAC. It integrates a 650V power MOSFET with a low on-resistance, reducing conduction losses. The PWM controller operates at a switching frequency of around 65kHz, with frequency jittering to minimize EMI. The device includes comprehensive protection features, such as over-voltage protection, over-current protection, over-temperature protection, and short-circuit protection, to ensure safe and reliable operation. The standby power consumption is very low, typically less than 75mW. The PN8034NSC-T1 is typically packaged in a DIP-8 or SOP-8 package. It is designed to meet various safety standards, such as UL, CE, and CCC.

The integrated high-voltage startup circuit helps to reduce external component count and improve system reliability. The frequency jittering feature helps to spread the EMI spectrum, reducing peak EMI levels. The comprehensive protection features protect the device and the load from various fault conditions. The low standby power consumption helps to meet stringent energy efficiency requirements. The compact package size makes it suitable for space-constrained applications. The PN8034NSC-T1 is commonly used in low-power power supplies to provide efficient and reliable power conversion. Wuxi's quality control processes ensure consistent performance and reliability.