SD4841P, Current Mode PWM Controller with Integrated High-Voltage MOSFET, DIP-8

The SD4841P is a current mode PWM (Pulse Width Modulation) controller developed by Silan Microelectronics. It integrates a high-voltage MOSFET, making it an ideal solution for switch-mode power supplies (SMPS) and other power conversion applications. The low start-up current of 6μA ensures minimal energy consumption during power-up, while the frequency jitter feature reduces electromagnetic interference, aiding in meeting EMI regulations.

Designed with multiple protection features, including overcurrent, overvoltage, undervoltage lockout, and thermal shutdown, the SD4841P ensures robust and reliable performance in various operating conditions. Its burst mode operation during standby periods significantly lowers power dissipation, making it suitable for energy-efficient power supply designs.

Housed in a DIP-8 package, the SD4841P allows for straightforward implementation in standard PCB layouts, catering to a wide range of power management applications.

• Integrated High-Voltage MOSFET: Simplifies design by combining a PWM controller with a built-in high-voltage MOSFET, reducing external component count.
• Low Start-Up Current: Features a typical start-up current of 6μA, enhancing efficiency during power-up.
• Frequency Jitter for Low EMI: Incorporates frequency jittering to minimize electromagnetic interference, ensuring compliance with EMI standards.
• Comprehensive Protection Mechanisms: Includes overcurrent protection, overvoltage protection, undervoltage lockout, and built-in temperature protection to ensure reliable operation.
• Burst Mode Operation: Enters burst mode during standby to significantly reduce power dissipation, contributing to energy-efficient designs.
• Standard DIP-8 Package: Encased in an industry-standard DIP-8 package, facilitating easy integration into various power supply designs.