{"id":16351,"date":"2025-05-11T19:50:56","date_gmt":"2025-05-11T11:50:56","guid":{"rendered":"https:\/\/www.topdiodes.com\/?p=16351"},"modified":"2025-05-11T19:50:56","modified_gmt":"2025-05-11T11:50:56","slug":"super-junction-mosfets-different-from-common-d-mos","status":"publish","type":"post","link":"https:\/\/www.topdiodes.com\/super-junction-mosfets-different-from-common-d-mos\/","title":{"rendered":"Super-junction MOSFETs different from common D-MOS"},"content":{"rendered":"\n

Super Junction (SJ) MOSFETs<\/strong> are a type of power MOSFET characterized by a unique structure and outstanding performance, particularly well-suited for high-voltage applications. Compared to conventional MOSFETs, they offer significantly lower on-resistance, gate charge, and output capacitance, resulting in improved efficiency and reduced power loss.<\/p>\n

The depletion layer spreads differently in N-layer, which determines the limit of the breakdown voltage. SJ-MOS can be designed with N-layers with lower resistivity, allowing for lower on-resistance.<\/p>\n

D-MOS and SJ-MOS construction and electric field<\/h2>\n

SJ-MOS (we call it DTMOS) forms a columnar P layer (P-pillar layer) on a part of N-layer and alternates P-N layers.
\nWhen VDS is applied, the depletion layer spreads over N-layer, which is the drifting layer. However, the spreads differently in the common D-MOS (called \u03c0-MOS in our case) and SJ-MOS. (See the electric field intensity diagram. The electric field intensity indicates the state in the depletion layer.)
\nIn D-MOS, the interface between P\/N-layers has the highest electric field strength, and breakover (breakdown phenomena) occurs when this part exceeds the limit of the material-silicon. This is the limit of the breakdown voltage. On the other hand, SJ-MOS has uniform electric field strength in N-layers.
\nAs a consequence, SJ-MOS can be designed with lower-resistance N-layers, allowing for lower on-resistance.<\/p>\n

\"Super-junction<\/p>\n

Key Features and Advantages of SJ MOSFETs<\/h2>\n

Lower On-Resistance (RDS(on)):<\/strong>
\nThanks to their distinctive structure, SJ MOSFETs achieve lower on-resistance, allowing them to handle higher currents at lower voltages.<\/p>\n

Reduced Gate Charge:<\/strong>
\nA lower gate charge enables faster switching speeds and reduced power consumption.<\/p>\n

Lower Output Capacitance (Coss):<\/strong>
\nReduced Coss leads to lower switching losses and higher overall efficiency.<\/p>\n

Improved Efficiency:<\/strong>
\nThe combined benefits of low RDS(on), gate charge, and Coss contribute to enhanced power conversion efficiency.<\/p>\n

Smaller Chip Size:<\/strong>
\nThe unique structure of SJ MOSFETs allows for smaller chip dimensions while maintaining high-voltage capability.<\/p>\n

High-Voltage Suitability:<\/strong>
\nSJ MOSFETs are especially well-suited for high-voltage switching applications such as Power Factor Correction (PFC) converters and other high-power systems.<\/p>\n

Reduced Thermal Dissipation:<\/strong>
\nLower losses and smaller size help minimize heat generation, which is critical for compact devices.<\/p>\n

Faster Switching Speeds:<\/strong>
\nLower gate charge and output capacitance enable faster switching, making SJ MOSFETs ideal for speed-sensitive applications.<\/p>\n

\"Super-junction<\/p>\n

Operating Principle of Super Junction MOSFETs<\/h2>\n

Super Junction MOSFETs enhance power efficiency and reduce conduction and switching losses through a structural innovation in the N-type drift region. Unlike conventional MOSFETs, the N-type region in SJ devices is formed using vertical trenches, resulting in a more uniform electric field distribution. This uniformity allows for more efficient use of silicon area, leading to lower on-resistance and improved overall performance.<\/p>\n

\"Super-junction<\/p>\n

Applications<\/h2>\n

Power Factor Correction (PFC) Converters:<\/strong>
\nDue to their high voltage handling and low switching losses, SJ MOSFETs are commonly used in PFC boost converter stages.<\/p>\n

DC-DC Converters:<\/strong>
\nTheir high efficiency and fast switching capabilities make them ideal for a wide range of DC-DC conversion applications.<\/p>\n

Power Supplies:<\/strong>
\nSJ MOSFETs are widely used in switch-mode power supplies (SMPS) thanks to their efficiency and compact size.<\/p>\n

Motor Controllers:<\/strong>
\nTheir ability to handle high currents and fast switching makes them suitable for motor drive circuits.<\/p>\n

Automotive Applications:<\/strong>
\nSJ MOSFETs are used in various automotive systems, such as charging infrastructure and power electronics.<\/p>\n

Industrial Applications:<\/strong>
\nThey are well-suited for industrial systems requiring high efficiency and power density.<\/p>\n

Consumer Electronics:<\/strong>
\nSJ MOSFETs are used in devices such as OLED displays and televisions, where power efficiency is critical.<\/p>\n

Topdiode Super Junction power mosfet TPL53N60C4\uff0cTPK53N60C4\uff0cTPN53N60C4TPM53N60C4\uff0cTPJ53N60C4, TPJ80N65C4, TPJ80N60F2 these Super Junction MOSFET family that is utilizing charge balance technology for extremely low onresistance and low gate charge performance. Is<\/p>\n

suitable for applications which require superior power density and outstanding efficiency<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Super Junction (SJ) MOSFETs are a type of power MOSFET characterized by a unique structure and outstanding performance, particularly well-suited for high-voltage applications. Compared to conventional MOSFETs, they offer significantly lower on-resistance, gate charge, and […]<\/p>\n","protected":false},"author":1,"featured_media":16352,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"disabled","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-16351","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/posts\/16351","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/comments?post=16351"}],"version-history":[{"count":2,"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/posts\/16351\/revisions"}],"predecessor-version":[{"id":16357,"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/posts\/16351\/revisions\/16357"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/media\/16352"}],"wp:attachment":[{"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/media?parent=16351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/categories?post=16351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.topdiodes.com\/wp-json\/wp\/v2\/tags?post=16351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}