{"product_id":"utc-uc3846-current-mode-pwm-controller-ic-dip-8","title":"UTC UC3846 Current Mode PWM Controller IC DIP-8","description":"\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eUTC UC3846 L\u003ciframe width=\"958\" height=\"539\" src=\"https:\/\/www.youtube.com\/embed\/lCBkaA-GwGI\" title=\"UC3846 ( IC Explained ) , Low Component Count , Easy to Design🔥🔥\"\u003e\u003c\/iframe\u003eow Cost Power-Saving Mode PWM Controller for Flyback Converters\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eUTC UC3846\u003c\/strong\u003e is a high-performance current mode PWM controller ideally suited for low standby power and cost-effective off-line flyback converters. Its low VDD startup current ensures reliable startup design, and a large-value resistor can be used in the startup circuit to minimize standby power.\u003c\/p\u003e\n\u003cp\u003eAt no-load condition, the IC operates in \u003cstrong\u003eburst mode\u003c\/strong\u003e for lower standby power and in decreasing frequency for higher conversion efficiency at light load. The PWM switching frequency is programmable externally during normal operation.\u003c\/p\u003e\n\u003ch3\u003eProtection Features\u003c\/h3\u003e\n\u003cp\u003eThe UTC UC3846 includes comprehensive automatic self-recovery protection:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOCP\u003c\/strong\u003e – Cycle-by-cycle current limiting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOTP\u003c\/strong\u003e – Over temperature protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUVLO\u003c\/strong\u003e – VDD over voltage clamp and under voltage lockout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGate-drive output\u003c\/strong\u003e clamped at 15V max to protect the power MOSFET\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdvanced Performance\u003c\/h3\u003e\n\u003cp\u003eInternal slope compensation improves system stability at high PWM duty cycle. Leading-edge blanking on the current sense (CS) input removes signal glitches, minimizing external component requirements and lowering system cost. Excellent EMI performance is achieved via UTC's proprietary \u003cstrong\u003efrequency hopping technique\u003c\/strong\u003e combined with soft driver control. Audio noise is eliminated as the switching frequency exceeds 20kHz during operation.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBattery chargers\u003c\/li\u003e\n\u003cli\u003ePower adaptors\u003c\/li\u003e\n\u003cli\u003eSet-top box power supplies\u003c\/li\u003e\n\u003cli\u003eInkjet printers\u003c\/li\u003e\n\u003cli\u003eOpen-frame SMPS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUTC proprietary frequency hopping for improved EMI performance\u003c\/li\u003e\n\u003cli\u003ePower-saving mode for high light-load efficiency\u003c\/li\u003e\n\u003cli\u003eBurst mode for minimum standby power\u003c\/li\u003e\n\u003cli\u003eDynamic peak current limiting for constant output power\u003c\/li\u003e\n\u003cli\u003eBuilt-in synchronized slope compensation\u003c\/li\u003e\n\u003cli\u003eOTP, OVP, and VDD clamp for higher security\u003c\/li\u003e\n\u003cli\u003eProgrammable PWM frequency\u003c\/li\u003e\n\u003cli\u003eGate output voltage clamped at 15V\u003c\/li\u003e\n\u003cli\u003eLow start-up current\u003c\/li\u003e\n\u003cli\u003eCycle-by-cycle current limiting\u003c\/li\u003e\n\u003cli\u003eUnder voltage lockout (UVLO)\u003c\/li\u003e\n\u003cli\u003eFew external components required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePackage:\u003c\/strong\u003e DIP-8 | \u003cstrong\u003eManufacturer:\u003c\/strong\u003e Unisonic Technologies Co., Ltd |\u003c\/p\u003e\n\u003cp\u003e \u003ca href=\"http:\/\/www.unisonic.com.tw\" target=\"_blank\"\u003ewww.unisonic.com.tw\u003c\/a\u003e\u003c\/p\u003e","brand":"Unisonic Technologies Co., Ltd","offers":[{"title":"Default Title","offer_id":51718735036694,"sku":null,"price":100.0,"currency_code":"PKR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/0764\/1366\/files\/image_19124b6d-5e5e-46ca-a642-5920b3e26562.png?v=1786784580","url":"https:\/\/digilog.pk\/products\/utc-uc3846-current-mode-pwm-controller-ic-dip-8","provider":"digilog.pk","version":"1.0","type":"link"}