\n| \u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n | SOIC-8 (4.9×3.9mm)<\/td>\n<\/tr>\n<\/table>\n\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n\n- See datasheet for complete specifications<\/li>\n
- Industry-standard package<\/li>\n<\/ul>\n
\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n\n- Industrial control<\/li>\n
- Consumer electronics<\/li>\n
- Communication equipment<\/li>\n
- Power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"
Product Overview The MP1517DR-LF-Z from Monolithic Power is an 18V 2A boost converter with 1.2MHz switching and 2.5-16V input in SOIC-8 for LCD bias and LED driving. Key Specifications Package SOIC-8 (4.9×3.9mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Power management<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31,13],"tags":[],"chip_brand":[278],"class_list":["post-5821","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-monolithic-power"],"acf":{"brief_explanation":"18V 2A boost converter, 1.2MHz, SOIC-8","date_code":"","package_case":"SOIC-8 (4.9x3.9mm)","in_stock":6144,"datasheet":"https:\/\/www.monolithicpower.com\/en\/mp1517.html","price":"$0.60 @ 1ku","product_introduction":"The MP1517DR-LF-Z from Monolithic Power is an 18V 2A boost converter with 1.2MHz switching and 2.5-16V input in SOIC-8 for LCD bias and LED driving.","working_principle":"The MP1517DR-LF-Z is an 18V 2A boost LED driver from Monolithic Power in SOIC-8, operating at 1.2MHz with an integrated 2A N-channel MOSFET. It uses current-mode control optimized for constant-current LED driving: the FB pin senses the voltage across an external current-setting resistor (RSET) in series with the LED string, with ILED = 1.23V \/ RSET. The CTRL pin provides two dimming methods: DC voltage dimming (0.3-1.2V linearly adjusts the FB reference from 0V to 1.23V) and PWM dimming (pulse the CTRL pin at 100Hz-10kHz for duty-cycle-controlled brightness). The OS (Over-voltage Setting) pin sets the OVP threshold using an external resistor divider: if the LED string opens, the output voltage rises until OVP triggers, protecting the MOSFET from over-voltage breakdown. The 1.2MHz switching frequency keeps the inductor small (4.7uH typical). The COMP pin allows external compensation for various LED string configurations. Efficiency exceeds 90% at 12V output from a 5V input at 500mA load.","pin_description":" | Pin<\/th> | Name<\/th> | Type<\/th> | Function<\/th><\/tr> |
|---|
| 1<\/td> | SW<\/td> | Output<\/td> | Switching node (internal MOSFET drain)<\/td><\/tr> | | 2<\/td> | GND<\/td> | Power<\/td> | Ground<\/td><\/tr> | | 3<\/td> | FB<\/td> | Input<\/td> | Feedback input (1.23V reference)<\/td><\/tr> | | 4<\/td> | CTRL<\/td> | Input<\/td> | Brightness control \/ PWM dimming input<\/td><\/tr> | | 5<\/td> | IN<\/td> | Power<\/td> | Input supply (2.5-18V)<\/td><\/tr> | | 6<\/td> | SHDN<\/td> | Input<\/td> | Shutdown (active low)<\/td><\/tr> | | 7<\/td> | COMP<\/td> | Analog<\/td> | Loop compensation pin<\/td><\/tr> | | 8<\/td> | OS<\/td> | Analog<\/td> | Over-voltage setting \/ OVP threshold<\/td><\/tr><\/table>","application_scenarios":"- Industrial control<\/li>
- Consumer electronics<\/li>
- Communication equipment<\/li>
- Power management<\/li>","alternative_models":"
| Manufacturer<\/th> | Part Number<\/th> | Package<\/th> | Notes<\/th><\/tr> |
|---|
| Monolithic Power<\/td> | MP1517DK-LF-Z<\/td> | SOT-23-6<\/td> | Smaller package, fewer features<\/td><\/tr> | | Texas Instruments<\/td> | TPS61165DRVR<\/td> | WSON-6<\/td> | 38V 1.2A boost LED driver<\/td><\/tr> | | Monolithic Power<\/td> | MP3209DK-LF-Z<\/td> | SOT-23-6<\/td> | 18V 0.5A boost LED driver<\/td><\/tr> | | Silan<\/td> | SY7201ABC<\/td> | SOT-23-6<\/td> | Boost LED driver, 25V<\/td><\/tr> | | Richtek<\/td> | RT9293BGEJ<\/td> | SOT-23-6<\/td> | Boost LED driver, 26V, 1A<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=5821"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5821\/revisions"}],"predecessor-version":[{"id":5971,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5821\/revisions\/5971"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5821"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5821"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |
|
|