Economy Primary Side Controller

FEATURES • User Programmable Soft Start With Active Low Shutdown • User Programmable Maximum Duty Cycle • Accessible 5V Reference • Undervoltage Lockout • Operation to 1MHz • 0.4A Source/0.8A Sink FET Driver • Low 100μA Startup Current DESCRIPTION The UCC3809 family of BCDMOS economy

具有 15V/8V UVLO、温度范围为 0°C 至 70°C 的经济型初级侧控制器

The UCC3809 family of BCDMOS economy low power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count. Internally implemented circuits include undervoltage lo • User Programmable Soft Start With Active Low Shutdown\n• User Programmable Maximum Duty Cycle\n• Accessible 5V Reference\n• Undervoltage Lockout\n• Operation to 1MHz\n• 0.4A Source/0.8A Sink FET Driver\n• Low 100µA Startup Current;

Economy Primary Side Controller

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Economy Primary Side Controller

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Economy Primary Side Controller

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