{"id":1070,"date":"2025-03-20T02:57:26","date_gmt":"2025-03-20T00:57:26","guid":{"rendered":"https:\/\/zoomelectronic.com\/?post_type=product&#038;p=1070"},"modified":"2025-08-04T14:50:32","modified_gmt":"2025-08-04T12:50:32","slug":"uc3845","status":"publish","type":"product","link":"https:\/\/zoomelectronic.com\/index.php\/product\/uc3845\/","title":{"rendered":"UC3845"},"content":{"rendered":"<ul data-hveid=\"CDsQAQ\" data-ved=\"2ahUKEwji1NaGl_GOAxWKFjQIHRXPI9cQm_YKegQIOxAB\">\n<li><span data-huuid=\"11487824696057174699\"><strong>Operating Voltage Range:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057174550\">7.6V to 30V.<\/span><\/li>\n<li><span data-huuid=\"11487824696057174252\"><strong>Oscillator Frequency:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057174103\">Typically 100kHz, but can be adjusted up to 500kHz.<\/span><\/li>\n<li><span data-huuid=\"11487824696057173805\"><strong>Maximum Duty Cycle:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057173656\">50%.<\/span><\/li>\n<li><span data-huuid=\"11487824696057173358\"><strong>Output Current:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057173209\">1A (maximum).<\/span><\/li>\n<li><span data-huuid=\"11487824696057172911\"><strong>Output Configuration:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057172762\">Positive or negative, isolation capable.<\/span><\/li>\n<li><span data-huuid=\"11487824696057172464\"><strong>Control Features:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057172315\">Frequency control, current limiting, dead time control, error amplifier, fixed frequency, multi-topology.<\/span><\/li>\n<li><span data-huuid=\"11487824696057172017\"><strong>Operating Temperature Range:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057175964\">0\u00b0C to 70\u00b0C.<\/span><\/li>\n<li><span data-huuid=\"11487824696057175666\"><strong>Start-up Current:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057175517\">Typically 0.5mA (maximum).<\/span><\/li>\n<li><span data-huuid=\"11487824696057175219\"><strong>Operating Supply Current:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057175070\">Typically 11mA.<\/span><\/li>\n<li><span data-huuid=\"11487824696057174772\"><strong>Output Voltage Swing:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057174623\">Typically 0.3V (low) to Vcc &#8211; 1.2V (high).<\/span><\/li>\n<li><span data-huuid=\"11487824696057174325\"><strong>Current Sense Threshold:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057174176\">1V (typical).<\/span><\/li>\n<li><span data-huuid=\"11487824696057173878\"><strong>Under voltage Lockout (UVLO):<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057173729\">With hysteresis, thresholds vary by specific device (e.g., UC3845B has UVLO thresholds of 8.5V and 7.9V).<\/span><\/li>\n<li><span data-huuid=\"11487824696057173431\"><strong>Package Options:<\/strong>\u00a0<\/span><span data-huuid=\"11487824696057173282\">DIP-8 and SOIC-8.<span class=\"pjBG2e\" data-cid=\"67e91d38-d4b4-4456-9351-b1812f2a74aa\"><span class=\"UV3uM\">\u00a0<\/span><\/span><\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<div id=\"tw-target-text-container\" class=\"tw-ta-container tw-lfl\" tabindex=\"0\" role=\"text\">\n<p id=\"tw-target-text\" class=\"tw-data-text tw-text-large tw-ta\" dir=\"rtl\" data-placeholder=\"Translation\" aria-label=\"Translated text: \u0648\u062d\u062f\u0629 \u062a\u062d\u0643\u0645 PWM (\u062a\u0639\u062f\u064a\u0644 \u0639\u0631\u0636 \u0627\u0644\u0646\u0628\u0636\u0629) \u0630\u0627\u062a \u0627\u0644\u062a\u0631\u062f\u062f \u0627\u0644\u062b\u0627\u0628\u062a \u0648\u0648\u0636\u0639 \u0627\u0644\u062a\u064a\u0627\u0631\" data-ved=\"2ahUKEwiJh-LDtuyOAxVBgP0HHZvvKuIQ3ewLegQICRAV\"><span class=\"Y2IQFc\" lang=\"ar\">\u0648\u062d\u062f\u0629 \u062a\u062d\u0643\u0645 PWM (\u062a\u0639\u062f\u064a\u0644 \u0639\u0631\u0636 \u0627\u0644\u0646\u0628\u0636\u0629) \u0630\u0627\u062a \u0627\u0644\u062a\u0631\u062f\u062f \u0627\u0644\u062b\u0627\u0628\u062a \u0648\u0648\u0636\u0639 \u0627\u0644\u062a\u064a\u0627\u0631<\/span><\/p>\n<\/div>\n<div id=\"tw-target-rmn-container\" class=\"tw-target-rmn tw-ta-container tw-nfl\" tabindex=\"0\" role=\"text\">fixed-frequency, current-mode PWM (Pulse Width Modulation) controller IC<\/div>\n","protected":false},"featured_media":1001,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"product_brand":[],"product_cat":[30],"product_tag":[],"class_list":["post-1070","product","type-product","status-publish","has-post-thumbnail","product_cat-ics","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/zoomelectronic.com\/index.php\/wp-json\/wp\/v2\/product\/1070","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zoomelectronic.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/zoomelectronic.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/zoomelectronic.com\/index.php\/wp-json\/wp\/v2\/comments?post=1070"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zoomelectronic.com\/index.php\/wp-json\/wp\/v2\/media\/1001"}],"wp:attachment":[{"href":"https:\/\/zoomelectronic.com\/index.php\/wp-json\/wp\/v2\/media?parent=1070"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/zoomelectronic.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=1070"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/zoomelectronic.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=1070"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/zoomelectronic.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=1070"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}