https://community.element14.com/products/devtools/product-pages/w/documents/22417/reference-design-for-3-3v-to-15v-input-15v-12v-output-isolated-power-supplyProduct Detail Documentsen-USTelligent Community 12https://community.element14.com/products/devtools/product-pages/w/documents/22417/reference-design-for-3-3v-to-15v-input-15v-12v-output-isolated-power-supplyFri, 05 May 2023 16:03:01 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a9e129fb-7c5f-4d54-b59d-496700b91c8de14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/22417/reference-design-for-3-3v-to-15v-input-15v-12v-output-isolated-power-supply#commentsCurrent Revision posted to Documents by e14-publisher on 5/5/2023 4:03:01 PM<br /> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">Reference Design for 3.3V to 15V Input, ±15V (±12V) Output, Isolated Power Supply</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>Maxim Integrated</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x118_1579633417.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" /> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x120_1579633417.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x118_1579633417.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x120_1579633417.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">MAXREFDES9</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-a228b" data-at-areainteracted="design-center" data-at-type="click" data-at-link-type="button" href="javascript:void(0)" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('a228b'));" data-farnell="2530803" data-newark="" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> The Oceanside design (MAXREFDES9#) uses a step-up controller(MAX668), a 36V H-bridgetransformer driver (MAX13256), and a pair of low dropout (LDO) linear regulators (MAX1659 x2) to create a &plusmn;15V (&plusmn;12V) output isolated power supply from a wide range of input voltages. This general purpose power solution can be used in many different types of isolated power applications. <br /><br />The Oceanside subsystem reference design operates from a 3.3V to 15V DC power source. The MAX668 high-efficiency step-up controller boosts the input voltage to 16V and connects to the input of the H-bridge transformer driver. The MAX13256 H-bridge transformer driver switches at 425kHz and drives the primary side of the 1:1 turns ratio, with the use of TGMR-501V6LF transformers from Halo&reg; Electronics. The full-wave bridge rectifiers convert the AC outputs of the Halo transformers&rsquo; secondary coils into DC outputs. The LDOs regulate the voltages to &plusmn;15V. The Zener diodes (D3 and D4) protect the LDOs by keeping their input voltages below 16.5V.<br /><br /><strong>Applications:</strong> <ul> <li>Industrial sensors</li> <li>Process control</li> <li>Industrial automation</li> <li>Medical</li> </ul> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>Isolated power</li> <li>&plusmn;15V (&plusmn;12V) outputs</li> <li>Small printed-circuit board (PCB) area</li> <li>Pmod&trade;-compatible form factor</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Application Note</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://pdfserv.maximintegrated.com/en/an/REFD5509.pdf" target="_blank">Oceanside (MAXREFDES9#): 3.3V to 15V Input, ±15V (±12V) Output, Isolated Power Supply (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX668-MAX669.pdf" target="_blank">MAX668 1.8V to 28V Input, PWM Step-Up Controllers in µMAX (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX13256.pdf" target="_blank">MAX13256 36V H-Bridge Transformer Driver for Isolated Supplies (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX1658-MAX1659.pdf" target="_blank">MAX1659 350mA, 16.5V Input, Low-Dropout Linear Regulators (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-BOM-RA.pdf" target="_blank">Bill of Materials (BOM) for MAXREFDES9 (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/images/appnotes/5509/MAXREFDES9-schematic-RA.pdf" target="_blank">Schematic for MAXREFDES9 (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-layout-RA.pdf" target="_blank">PCB Layout for MAXREFDES9 (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.maximintegrated.com/design/tools/cad-layout/gerber/MAXREFDES9_GERBER-RA.ZIP" target="_blank">PCB Gerber for MAXREFDES9 (zip)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Simulation Model/CAD Models</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-CAD-RA.zip" target="_blank">PCB CAD (PADS 9.0) for MAXREFDES9 (zip)</a> </div> </div> </div> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 3832, "type": "devtool", "part_number": "MAXREFDES9" };</script> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: H-bridgetransformer driver, step-up controller, MAX1659, ldo, MAX13256, low dropout, linear regulators, mcu, maxim, MAX668, development_platforms_kits, reference_designs</div> https://community.element14.com/products/devtools/product-pages/w/documents/22417/reference-design-for-3-3v-to-15v-input-15v-12v-output-isolated-power-supply/revision/3Thu, 16 Dec 2021 23:34:10 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a9e129fb-7c5f-4d54-b59d-496700b91c8de14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/22417/reference-design-for-3-3v-to-15v-input-15v-12v-output-isolated-power-supply#commentsRevision 3 posted to Documents by e14-publisher on 12/16/2021 11:34:10 PM<br /> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 3832, "type": "devtool", "part_number": "MAXREFDES9" };</script> </div> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">Reference Design for 3.3V to 15V Input, ±15V (±12V) Output, Isolated Power Supply</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>Maxim Integrated</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x118_1579633417.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" /> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x120_1579633417.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x118_1579633417.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x120_1579633417.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">MAXREFDES9</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-37347" data-at-areainteracted="design-center" data-at-type="click" data-at-link-type="button" href="javascript:void(0)" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('37347'));" data-farnell="2530803" data-newark="" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> The Oceanside design (MAXREFDES9#) uses a step-up controller(MAX668), a 36V H-bridgetransformer driver (MAX13256), and a pair of low dropout (LDO) linear regulators (MAX1659 x2) to create a &plusmn;15V (&plusmn;12V) output isolated power supply from a wide range of input voltages. This general purpose power solution can be used in many different types of isolated power applications. <br /><br />The Oceanside subsystem reference design operates from a 3.3V to 15V DC power source. The MAX668 high-efficiency step-up controller boosts the input voltage to 16V and connects to the input of the H-bridge transformer driver. The MAX13256 H-bridge transformer driver switches at 425kHz and drives the primary side of the 1:1 turns ratio, with the use of TGMR-501V6LF transformers from Halo&reg; Electronics. The full-wave bridge rectifiers convert the AC outputs of the Halo transformers&rsquo; secondary coils into DC outputs. The LDOs regulate the voltages to &plusmn;15V. The Zener diodes (D3 and D4) protect the LDOs by keeping their input voltages below 16.5V.<br /><br /><strong>Applications:</strong> <ul> <li>Industrial sensors</li> <li>Process control</li> <li>Industrial automation</li> <li>Medical</li> </ul> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>Isolated power</li> <li>&plusmn;15V (&plusmn;12V) outputs</li> <li>Small printed-circuit board (PCB) area</li> <li>Pmod&trade;-compatible form factor</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Application Note</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://pdfserv.maximintegrated.com/en/an/REFD5509.pdf" target="_blank">Oceanside (MAXREFDES9#): 3.3V to 15V Input, ±15V (±12V) Output, Isolated Power Supply (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX668-MAX669.pdf" target="_blank">MAX668 1.8V to 28V Input, PWM Step-Up Controllers in µMAX (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX13256.pdf" target="_blank">MAX13256 36V H-Bridge Transformer Driver for Isolated Supplies (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX1658-MAX1659.pdf" target="_blank">MAX1659 350mA, 16.5V Input, Low-Dropout Linear Regulators (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-BOM-RA.pdf" target="_blank">Bill of Materials (BOM) for MAXREFDES9 (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/images/appnotes/5509/MAXREFDES9-schematic-RA.pdf" target="_blank">Schematic for MAXREFDES9 (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-layout-RA.pdf" target="_blank">PCB Layout for MAXREFDES9 (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.maximintegrated.com/design/tools/cad-layout/gerber/MAXREFDES9_GERBER-RA.ZIP" target="_blank">PCB Gerber for MAXREFDES9 (zip)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Simulation Model/CAD Models</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-CAD-RA.zip" target="_blank">PCB CAD (PADS 9.0) for MAXREFDES9 (zip)</a> </div> </div> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: H-bridgetransformer driver, step-up controller, MAX1659, ldo, MAX13256, low dropout, linear regulators, mcu, maxim, MAX668, development_platforms_kits, reference_designs</div> https://community.element14.com/products/devtools/product-pages/w/documents/22417/reference-design-for-3-3v-to-15v-input-15v-12v-output-isolated-power-supply/revision/2Thu, 16 Dec 2021 03:22:09 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a9e129fb-7c5f-4d54-b59d-496700b91c8de14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/22417/reference-design-for-3-3v-to-15v-input-15v-12v-output-isolated-power-supply#commentsRevision 2 posted to Documents by e14-publisher on 12/16/2021 3:22:09 AM<br /> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 3832, "type": "devtool", "part_number": "MAXREFDES9" };</script> </div> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">Reference Design for 3.3V to 15V Input, ±15V (±12V) Output, Isolated Power Supply</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>Maxim Integrated</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x118_1579633417.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" /> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x120_1579633417.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x118_1579633417.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x120_1579633417.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">MAXREFDES9</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-a13ef" data-at-areainteracted="design-center" data-at-type="click" data-at-link-type="button" href="javascript:void(0)" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('a13ef'));" data-farnell="" data-newark="" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> The Oceanside design (MAXREFDES9#) uses a step-up controller(MAX668), a 36V H-bridgetransformer driver (MAX13256), and a pair of low dropout (LDO) linear regulators (MAX1659 x2) to create a &plusmn;15V (&plusmn;12V) output isolated power supply from a wide range of input voltages. This general purpose power solution can be used in many different types of isolated power applications. <br /><br />The Oceanside subsystem reference design operates from a 3.3V to 15V DC power source. The MAX668 high-efficiency step-up controller boosts the input voltage to 16V and connects to the input of the H-bridge transformer driver. The MAX13256 H-bridge transformer driver switches at 425kHz and drives the primary side of the 1:1 turns ratio, with the use of TGMR-501V6LF transformers from Halo&reg; Electronics. The full-wave bridge rectifiers convert the AC outputs of the Halo transformers&rsquo; secondary coils into DC outputs. The LDOs regulate the voltages to &plusmn;15V. The Zener diodes (D3 and D4) protect the LDOs by keeping their input voltages below 16.5V.<br /><br /><strong>Applications:</strong> <ul> <li>Industrial sensors</li> <li>Process control</li> <li>Industrial automation</li> <li>Medical</li> </ul> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>Isolated power</li> <li>&plusmn;15V (&plusmn;12V) outputs</li> <li>Small printed-circuit board (PCB) area</li> <li>Pmod&trade;-compatible form factor</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Application Note</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://pdfserv.maximintegrated.com/en/an/REFD5509.pdf" target="_blank">Oceanside (MAXREFDES9#): 3.3V to 15V Input, ±15V (±12V) Output, Isolated Power Supply (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX668-MAX669.pdf" target="_blank">MAX668 1.8V to 28V Input, PWM Step-Up Controllers in µMAX (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX13256.pdf" target="_blank">MAX13256 36V H-Bridge Transformer Driver for Isolated Supplies (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX1658-MAX1659.pdf" target="_blank">MAX1659 350mA, 16.5V Input, Low-Dropout Linear Regulators (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-BOM-RA.pdf" target="_blank">Bill of Materials (BOM) for MAXREFDES9 (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/images/appnotes/5509/MAXREFDES9-schematic-RA.pdf" target="_blank">Schematic for MAXREFDES9 (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-layout-RA.pdf" target="_blank">PCB Layout for MAXREFDES9 (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.maximintegrated.com/design/tools/cad-layout/gerber/MAXREFDES9_GERBER-RA.ZIP" target="_blank">PCB Gerber for MAXREFDES9 (zip)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Simulation Model/CAD Models</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-CAD-RA.zip" target="_blank">PCB CAD (PADS 9.0) for MAXREFDES9 (zip)</a> </div> </div> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: H-bridgetransformer driver, step-up controller, MAX1659, ldo, MAX13256, low dropout, linear regulators, mcu, maxim, MAX668, development_platforms_kits, reference_designs</div> https://community.element14.com/products/devtools/product-pages/w/documents/22417/reference-design-for-3-3v-to-15v-input-15v-12v-output-isolated-power-supply/revision/1Mon, 18 Oct 2021 20:25:09 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a9e129fb-7c5f-4d54-b59d-496700b91c8de14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/22417/reference-design-for-3-3v-to-15v-input-15v-12v-output-isolated-power-supply#commentsRevision 1 posted to Documents by e14-publisher on 10/18/2021 8:25:09 PM<br /> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 3832, "type": "devtool", "part_number": "MAXREFDES9" };</script> </div> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">Reference Design for 3.3V to 15V Input, ±15V (±12V) Output, Isolated Power Supply</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>Maxim Integrated</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x118_1579633417.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" /> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x120_1579633417.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x118_1579633417.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" alt="image" src="https://community-dc-assets.element14.com/images/devtool/size500/reference_design_for_33v_to_15v_input_15v_12v_output_isolated_power_supply_500x120_1579633417.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">MAXREFDES9</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-2268b" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="javascript:void(0)" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('2268b'));" data-farnell="2530803" data-newark="" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> The Oceanside design (MAXREFDES9#) uses a step-up controller(MAX668), a 36V H-bridgetransformer driver (MAX13256), and a pair of low dropout (LDO) linear regulators (MAX1659 x2) to create a &plusmn;15V (&plusmn;12V) output isolated power supply from a wide range of input voltages. This general purpose power solution can be used in many different types of isolated power applications. <br /><br />The Oceanside subsystem reference design operates from a 3.3V to 15V DC power source. The MAX668 high-efficiency step-up controller boosts the input voltage to 16V and connects to the input of the H-bridge transformer driver. The MAX13256 H-bridge transformer driver switches at 425kHz and drives the primary side of the 1:1 turns ratio, with the use of TGMR-501V6LF transformers from Halo&reg; Electronics. The full-wave bridge rectifiers convert the AC outputs of the Halo transformers&rsquo; secondary coils into DC outputs. The LDOs regulate the voltages to &plusmn;15V. The Zener diodes (D3 and D4) protect the LDOs by keeping their input voltages below 16.5V.<br /><br /><strong>Applications:</strong> <ul> <li>Industrial sensors</li> <li>Process control</li> <li>Industrial automation</li> <li>Medical</li> </ul> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>Isolated power</li> <li>&plusmn;15V (&plusmn;12V) outputs</li> <li>Small printed-circuit board (PCB) area</li> <li>Pmod&trade;-compatible form factor</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Application Note</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://pdfserv.maximintegrated.com/en/an/REFD5509.pdf" target="_blank">Oceanside (MAXREFDES9#): 3.3V to 15V Input, ±15V (±12V) Output, Isolated Power Supply (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX668-MAX669.pdf" target="_blank">MAX668 1.8V to 28V Input, PWM Step-Up Controllers in µMAX (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX13256.pdf" target="_blank">MAX13256 36V H-Bridge Transformer Driver for Isolated Supplies (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="https://datasheets.maximintegrated.com/en/ds/MAX1658-MAX1659.pdf" target="_blank">MAX1659 350mA, 16.5V Input, Low-Dropout Linear Regulators (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-BOM-RA.pdf" target="_blank">Bill of Materials (BOM) for MAXREFDES9 (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/images/appnotes/5509/MAXREFDES9-schematic-RA.pdf" target="_blank">Schematic for MAXREFDES9 (pdf)</a> </div> <div class="attachment "> <i class="fal fa-file-pdf"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-layout-RA.pdf" target="_blank">PCB Layout for MAXREFDES9 (pdf)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.maximintegrated.com/design/tools/cad-layout/gerber/MAXREFDES9_GERBER-RA.ZIP" target="_blank">PCB Gerber for MAXREFDES9 (zip)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Simulation Model/CAD Models</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-archive"></i> <a href="http://www.maximintegrated.com/design/tools/appnotes/5509/MAXREFDES9-CAD-RA.zip" target="_blank">PCB CAD (PADS 9.0) for MAXREFDES9 (zip)</a> </div> </div> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: H-bridgetransformer driver, step-up controller, MAX1659, ldo, MAX13256, low dropout, linear regulators, mcu, maxim, MAX668, development_platforms_kits, reference_designs</div>