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NDP7201KC

Features - Primary-side control without optocoupler and secondary-side control circuit - PWM+PFM hybrid control - Built-in 800V power BJT - ±5% constant voltage and constant current accuracy across the entire voltage range - Typical no-load power consumption <75mW @230V - Built-in soft-start circuit - Built-in output line compensation - Built-in frequency jitter - Ultra-low start-up power consumption (<5uA) - Cycle-by-cycle overcurrent limiting - Dynamic transistor base drive - Suitable for power <6W - Built-in overcurrent protection, overvoltage protection, short-circuit protection, overtemperature protection, and other protection functions Application Areas - Travel chargers & adapters - Flyback converters

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  • Product Description
    • Commodity name: NDP7201KC
    • 封装: SOP-8
    • 品牌: Xintan Micro

    Features - Primary-side control without optocoupler and secondary-side control circuit - PWM+PFM hybrid control - Built-in 800V power BJT - ±5% constant voltage and constant current accuracy across the entire voltage range - Typical no-load power consumption <75mW @230V - Built-in soft-start circuit - Built-in output line compensation - Built-in frequency jitter - Ultra-low start-up power consumption (<5uA) - Cycle-by-cycle overcurrent limiting - Dynamic transistor base drive - Suitable for power <6W - Built-in overcurrent protection, overvoltage protection, short-circuit protection, overtemperature protection, and other protection functions Application Areas - Travel chargers & adapters - Flyback converters

    Product Overview

     
    The NDP7201 is a high-performance switching power supply chip used for primary-side sampling and control. It integrates a power BJT and can be used in off-line switching power supply products of 6W or less. When operating in constant current mode, the NDP7201 uses PFM control, while in constant voltage mode, it uses PWM+PFM control, achieving high-precision constant voltage and constant current control without any secondary sampling and control circuits. Additionally, the NDP7201 incorporates input line voltage compensation and output line compensation for improved voltage and current regulation.
    The NDP7201 integrates numerous compensation and protection functions, simplifying the peripheral circuit, facilitating PCB layout and EMI design, improving system reliability, and reducing system cost.

     

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