TOP258EN (In Stock:9352)

The Power Integrations TOP258EN is a high-efficiency, high-density, synchronous, current-mode, primary-side regulated flyback controller designed for use in a wide range of applications, including USB Power Delivery (PD) adapters, class D audio amplifiers, and other high-power off-line applications. ### Description: The TOP258EN is a highly integrated solution that combines a power switch, a current sense comparator, an error amplifier, an oscillator, and other control logic in a single chip. It uses a proprietary current-mode control scheme that provides excellent line and load regulation, fast transient response, and low electromagnetic interference (EMI). ### Features: - High efficiency: The TOP258EN achieves high efficiency levels of up to 93%, which helps to reduce power consumption and heat dissipation. - High-density: The device is available in a compact 5mm x 6mm QFN package, making it suitable for space-constrained applications. - Synchronous rectification: The TOP258EN uses synchronous rectification on the secondary side, which reduces conduction losses and improves efficiency. - Primary-side regulation: The device provides primary-side regulation, which simplifies the design and reduces component count. - Current-mode control: The TOP258EN uses a proprietary current-mode control scheme that provides excellent line and load regulation and fast transient response. - Protection features: The device includes over-current protection, over-voltage protection, and over-temperature protection to ensure safe and reliable operation. ### Applications: The TOP258EN is suitable for a wide range of applications, including: - USB Power Delivery (PD) adapters - Class D audio amplifiers - TV power supplies - Computer power supplies - LED lighting - Industrial control systems - Battery chargers In summary, the Power Integrations TOP258EN is a high-efficiency, high-density, synchronous, current-mode, primary-side regulated flyback controller that offers excellent performance and reliability for a wide range of applications. Its compact size, high efficiency, and integrated protection features make it an ideal choice for space-constrained and high-power applications.