{"id":97,"date":"2021-06-05T19:24:54","date_gmt":"2021-06-05T19:24:54","guid":{"rendered":"https:\/\/www.jeskevic.info\/?p=97"},"modified":"2021-06-06T10:52:30","modified_gmt":"2021-06-06T10:52:30","slug":"experimenting-with-sn6505","status":"publish","type":"post","link":"https:\/\/www.jeskevic.info\/?p=97","title":{"rendered":"Experimenting with SN6505"},"content":{"rendered":"\n

Last week I played a lot with SN6505 from TI… So much power in so small SOT23-6.<\/p>\n\n\n\n

First and foremost, power source for VFD display (30VDC<\/sub> anode voltage, and ~2.5VAC<\/sub> for cathode)…<\/p>\n\n\n\n

\"\"
Small ring was too small, I used medium one (R 12.5\/7.5\/5 B64290L0044X087)<\/figcaption><\/figure>\n\n\n\n
\"\"
It works!<\/figcaption><\/figure>\n\n\n\n

Efficiency at max current 95%! Amazing. Let’s try to get more power!<\/p>\n\n\n\n\n\n\n\n

\"\"
R 10\/6\/4 B64290L0038X087 smallest one!<\/figcaption><\/figure>\n\n\n\n

With load 3.6W, diodes are hot, transformer & SN6505 are cold, efficiency 83%…<\/p>\n\n\n\n

With load 5W, input current 1.25A (max designed current 1A!) everything is very hot, efficiency still 83%… Worked without any problems for hours!<\/p>\n\n\n\n

Transfomer output:<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Frequency hopping to reduce EMI. Cool feature.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

One snapshot. Looks great!<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

SN6505 output. Looks beautiful!<\/p>\n","protected":false},"excerpt":{"rendered":"

Last week I played a lot with SN6505 from TI… So much power in so small SOT23-6. First and foremost, power source for VFD display (30VDC anode voltage, and ~2.5VAC for cathode)… Efficiency at max current 95%! Amazing. Let’s try to get more power!<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[24,10,6],"class_list":["post-97","post","type-post","status-publish","format-standard","hentry","category-electro","tag-jlcpcb","tag-sn6505","tag-vfd","entry"],"_links":{"self":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts\/97","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=97"}],"version-history":[{"count":2,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts\/97\/revisions"}],"predecessor-version":[{"id":105,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=\/wp\/v2\/posts\/97\/revisions\/105"}],"wp:attachment":[{"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=97"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=97"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jeskevic.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=97"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}