{"id":1551,"date":"2026-08-24T18:09:29","date_gmt":"2026-08-24T12:39:29","guid":{"rendered":"https:\/\/capkit.in\/?post_type=product&p=1551"},"modified":"2026-08-24T18:11:14","modified_gmt":"2026-08-24T12:41:14","slug":"ncp1252adr2g-ncp1252a-ncp1252-pwm-controller-ic","status":"publish","type":"product","link":"https:\/\/capkit.in\/?product=ncp1252adr2g-ncp1252a-ncp1252-pwm-controller-ic","title":{"rendered":"NCP1252ADR2G ( NCP1252A NCP1252 ) PWM Controller IC"},"content":{"rendered":"

NCP1252ADR2G (NCP1252A)<\/strong> is a current-mode PWM controller IC , designed for controlling external MOSFETs in offline flyback and forward switching power supplies<\/strong>. It integrates PWM control, current sensing, soft-start, brown-out detection, UVLO and over-current protection, making it suitable for SMPS, AC-DC adapters and power-supply applications.<\/p>\n

Specifications<\/h3>\n
\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Specification<\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
Part Number<\/td>\nNCP1252ADR2G<\/td>\n<\/tr>\n
Device<\/td>\nNCP1252A<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
IC Type<\/td>\nCurrent-Mode PWM Controller<\/td>\n<\/tr>\n
Application<\/td>\nFlyback \/ Forward Converter<\/td>\n<\/tr>\n
Package<\/td>\nSOIC-8<\/td>\n<\/tr>\n
Number of Pins<\/td>\n8<\/td>\n<\/tr>\n
Maximum Duty Cycle<\/td>\n50%<\/td>\n<\/tr>\n
VCC Operating Range<\/td>\n8 V \u2013 28 V<\/td>\n<\/tr>\n
Switching Frequency<\/td>\nUp to 500 kHz<\/td>\n<\/tr>\n
Gate Drive<\/td>\nExternal MOSFET<\/td>\n<\/tr>\n
Feedback<\/td>\nFB Input<\/td>\n<\/tr>\n
Current Sense<\/td>\nCS Input<\/td>\n<\/tr>\n
Soft Start<\/td>\nYes<\/td>\n<\/tr>\n
Brown-Out Protection<\/td>\nYes<\/td>\n<\/tr>\n
UVLO<\/td>\nYes<\/td>\n<\/tr>\n
Over-Current Protection<\/td>\nYes<\/td>\n<\/tr>\n
Frequency Setting<\/td>\nExternal RT Resistor<\/td>\n<\/tr>\n
Lead-Free<\/td>\nYes<\/td>\n<\/tr>\n
IC Marking<\/td>\n1252A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n<\/div>\n<\/div>\n

Features<\/h3>\n
    \n
  • Current-mode PWM control<\/li>\n
  • Designed for offline SMPS<\/li>\n
  • Supports flyback and forward converters<\/li>\n
  • External MOSFET gate-driver output<\/li>\n
  • Adjustable switching frequency<\/li>\n
  • Adjustable soft-start<\/li>\n
  • Primary-side current sensing<\/li>\n
  • Brown-out protection<\/li>\n
  • Under-voltage lockout (UVLO)<\/li>\n
  • Primary over-current protection<\/li>\n
  • Internal leading-edge blanking<\/li>\n
  • Frequency jittering<\/li>\n
  • Suitable for high-frequency switching applications<\/li>\n
  • Compact SOIC-8 package<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

    NCP1252ADR2G (NCP1252A) is an current-mode PWM controller IC designed for flyback and forward SMPS applications. It features soft-start, brown-out protection, over-current protection, UVLO and an external MOSFET gate driver in an 8-pin SOIC package.<\/p>\n","protected":false},"featured_media":1552,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[49],"product_tag":[443,444,307,433,434,440,437,438,436,435,441,371,360,361,439,363,442,372],"class_list":["post-1551","product","type-product","status-publish","has-post-thumbnail","product_cat-power-ic","product_tag-1252a-ic","product_tag-ac-dc-controller","product_tag-capkit-electronics","product_tag-current-mode-pwm","product_tag-flyback-controller","product_tag-forward-converter-ic","product_tag-ncp1252","product_tag-ncp1252-ic","product_tag-ncp1252a","product_tag-ncp1252adr2g","product_tag-onsemi-ic","product_tag-power-supply-ic","product_tag-pwm-controller-ic","product_tag-pwm-ic","product_tag-smps-controller","product_tag-smps-ic","product_tag-soic-8-ic","product_tag-switching-power-supply-ic","first","outofstock","taxable","shipping-taxable","purchasable","product-type-simple","col-xs-6 col-sm-4","col-md-3 col-lg-3","un-4-cols"],"_links":{"self":[{"href":"https:\/\/capkit.in\/index.php?rest_route=\/wp\/v2\/product\/1551","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/capkit.in\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/capkit.in\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/capkit.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1551"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/capkit.in\/index.php?rest_route=\/wp\/v2\/media\/1552"}],"wp:attachment":[{"href":"https:\/\/capkit.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1551"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/capkit.in\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=1551"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/capkit.in\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=1551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}