{"product_id":"uc3845b-current-mode-pwm-controller-in-pakistan","title":"UC3845B Current Mode PWM Controller In Pakistan","description":"\u003ch3 id=\"description\" class=\"tab-list-title\"\u003e\u003cspan style=\"font-size: 24px;\"\u003eDescription\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv id=\"content_description\" class=\"ty-wysiwyg-content content-description\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eThe UC3845B Current Mode PWM Controller is high performance fixed frequency current mode controller. It is specifically designed for Off-Line and dc-to-dc converter applications offering the designer a cost-effective solution with minimal external components. It is integrated circuits feature an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eAlso included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, a latch for single pulse metering, and a flip-flop which blanks the output off every other oscillator cycle, allowing output deadtimes to be programmed from 50% to 70%.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eThese devices are available in an 8-pin dual-in-line and surface mount (SO-8) plastic package as well as the 14-pin plastic surface mount (SO-14). The SO-14 package has separate power and ground pins for the totem pole output stage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003eThe UCX844B has UVLO thresholds of 16 V (on) and 10 V (off), ideally suited for off-line converters. The UCX845B is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable class=\"featureLayout\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"title14WhiteinBlue featureLayout fullWidth\"\u003e\u003cspan style=\"font-size: 24px;\"\u003eFeatures\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"listSpacer\"\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eTrimmed Oscillator for Precise Frequency Control\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eOscillator Frequency Guaranteed at 250 kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eCurrent Mode Operation to 500 kHz Output Switching Frequency\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eOutput Deadtime Adjustable from 50% to 70%\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eAutomatic Feed Forward Compensation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eLatching PWM for Cycle-By-Cycle Current Limiting\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eInternally Trimmed Reference with Undervoltage Lockout\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eHigh Current Totem Pole Output\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eUndervoltage Lockout with Hysteresis\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003eLow Startup and Operating Current\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cul class=\"oneItemList\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 24px;\"\u003ePb-Free Packages are Available\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cspan style=\"font-size: 24px;\"\u003ePackage include\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003e1 x UC3845B Current Mode PWM Controller\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003e\u003cspan style=\"color: #ffffff; font-size: 24px;\"\u003eThe\u003ca style=\"color: #ffffff;\" href=\"https:\/\/www.amazon.com\/10pcs-UC3845-UC3845AN-UC3845BN-UC3845B\/dp\/B086JJZ7X3\/ref=sr_1_1?dchild=1\u0026amp;keywords=UC3845B\u0026amp;qid=1603545360\u0026amp;sr=8-1\"\u003e focus keyphrase\u003c\/a\u003e is the phrase that you want your post or page to be found for in search engines. Sometimes, it is a single word, but it usually consists of a few words. That’s why we call it a keyphrase. For example, if you want your blog post to rank for ‘healthy snacks’, then optimize your post for that term. Your focus keyphrase can also be longer. For instance, you could write an article about healthy snacks specifically made for kids and optimize for ‘healthy snacks for kids’. Or a post about healthy snacks to eat after a workout, and optimize\u003c\/span\u003e\u003c\/h6\u003e\n\u003ch6\u003e\u003cspan style=\"color: #ffffff; font-size: 24px;\"\u003etimize your post for that term. Your focus keyphrase can also be longer. For instance, you could write an article about healthy snacks specifically made for kids  \u003c\/span\u003e\u003c\/h6\u003e\n\u003c\/div\u003e","brand":"Electronics Hub","offers":[{"title":"Default Title","offer_id":54466791899449,"sku":"product-6206","price":65.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/qqqqqqqqqqqqqqqqqqqq-1-1.jpg?v=1789232816","url":"https:\/\/electronicshub.pk\/products\/uc3845b-current-mode-pwm-controller-in-pakistan","provider":"Electronics Hub","version":"1.0","type":"link"}