{"product_id":"qk1301a-led-driver-ic","title":"QK1301A Low-Voltage Key Charging LED Driver IC","description":"\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eQK1301A\u003c\/strong\u003e is a dedicated IC for low-voltage LED\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003elights. It features complete charging functions,\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ecomprehensive battery protection circuits and key switch control.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eQK1301A\u003c\/strong\u003e supports power-saving mode with static standby current less than 10μA. It is equipped with full battery protection including over-current, over-voltage, constant-current, constant-voltage and thermal protection. When the lithium battery charging voltage is lower than 2.7V, trickle charge is activated to prevent battery damage. When the battery voltage rises above 2.7V, high-current constant-current charging starts. As the voltage approaches 4.2V, the charging current decreases gradually. Once the charging current drops below a preset threshold, the IC terminates charging. The detection error of charging voltage is controlled within ±1.5%.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan\u003eLow static standby current (\u0026lt;10μA)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan\u003e0.5A charging current, maximum 1A output current\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003e\u003cspan\u003eUnder-voltage protection\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan\u003e\u003cspan style=\"font-family: Arial;\"\u003eInternal\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e chip over-temperature protection\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003e\u003cspan\u003eDirect single-cell lithium battery charging via USB port\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan\u003ePreset 4.2V charging voltage\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003e\u003cspan\u003eComplete LED status indication function\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003e\u003cspan\u003eSupports 0V charging\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003e\u003cspan\u003eTrickle charge below 2.7V\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003e\u003cspan\u003eBattery reverse connection protection\u003c\/span\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003e\u003cspan\u003eSOT23-6 package\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n\u003cb\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003e\u003cspan\u003eprotectionlHandheld lamps, flashlights, headlamps, low-voltage bulb lights\u003c\/span\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e\u003cstrong\u003eDownload \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0785\/2913\/4692\/files\/QK1301A_EN_V1.0-LH.pdf?v=1785916136\" title=\"QK1301A Low-Voltage Key Charging LED Driver IC\" rel=\"noopener\" target=\"_blank\"\u003eQK1301A Datasheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"Home Town Chip Micro Technology Group","offers":[{"title":"Sample Qty:10 pcs($0.0803\/pcs)","offer_id":48928875610212,"sku":null,"price":0.8,"currency_code":"USD","in_stock":true},{"title":"Reel Qty:3000 pcs($0.0461\/pcs)","offer_id":48928875642980,"sku":null,"price":138.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/2913\/4692\/files\/QK1301A-S0T23-6.jpg?v=1786002153","url":"https:\/\/www.zjwchip.com\/zh-tw\/products\/qk1301a-led-driver-ic","provider":"ZJW Chip Store","version":"1.0","type":"link"}