{"id":6392,"date":"2026-06-16T02:35:10","date_gmt":"2026-06-16T02:35:10","guid":{"rendered":"https:\/\/materialparts.com\/viper22adip-e\/"},"modified":"2026-06-16T02:35:10","modified_gmt":"2026-06-16T02:35:10","slug":"viper22adip-e","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/viper22adip-e\/","title":{"rendered":"VIPER22ADIP-E"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The VIPER22ADIP-E from STMicroelectronics is a low-power offline SMPS primary switcher that integrates a dedicated current-mode PWM controller with a high-voltage power MOSFET on a single silicon chip. Packaged in an 8-pin DIP format, it operates from 195VAC to 265VAC with a fixed 60kHz switching frequency and delivers up to 20W output power, making it well-suited for battery charger adapters and standby power supplies.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n195VAC to 265VAC<\/td>\n<\/tr>\n
Output Power (195-265VAC)<\/td>\n20W (DIP-8)<\/td>\n<\/tr>\n
Output Power (85-265VAC)<\/td>\n12W (DIP-8)<\/td>\n<\/tr>\n
\u062a\u0631\u062f\u062f \u0627\u0644\u062a\u062d\u0648\u064a\u0644<\/td>\n60kHz (fixed)<\/td>\n<\/tr>\n
VDD Voltage Range<\/td>\n9V to 38V<\/td>\n<\/tr>\n
MOSFET Breakdown Voltage<\/td>\n730V (min)<\/td>\n<\/tr>\n
Drain Current (nom)<\/td>\n0.7A<\/td>\n<\/tr>\n
VDD On Threshold<\/td>\n14.5V (typical)<\/td>\n<\/tr>\n
VDD Off Threshold<\/td>\n8V (typical)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40\u00b0C to +150\u00b0C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nDIP-8<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Integrated PWM controller and 730V MOSFET<\/li>\n
  • Fixed 60kHz switching frequency<\/li>\n
  • Current mode control with auxiliary UVLO and hysteresis<\/li>\n
  • High-voltage start-up current source from drain pin<\/li>\n
  • Overtemperature, overcurrent, and overvoltage protection with auto-restart<\/li>\n
  • Automatic burst mode at low load conditions<\/li>\n
  • Hiccup mode overvoltage protection<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Battery charger adapters<\/li>\n
    • TV and monitor standby power supplies<\/li>\n
    • Auxiliary power supplies for motor control<\/li>\n
    • Consumer electronics power supplies<\/li>\n
    • Industrial low-power SMPS<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The VIPER22ADIP-E from STMicroelectronics is a low-power offline SMPS primary switcher that integrates a dedicated current-mode PWM controller with a high-voltage power MOSFET on a single silicon chip. Packaged in an 8-pin DIP format, it operates from 195VAC to 265VAC with a fixed 60kHz switching frequency and delivers up to 20W output power, […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,29],"tags":[],"chip_brand":[142],"class_list":["post-6392","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-st"],"acf":{"brief_explanation":"Low-power offline SMPS primary switcher with integrated 730V MOSFET, 20W, DIP-8, fixed 60kHz","date_code":"","package_case":"DIP-8 (10.16 x 7.11 x 4.95 mm)","in_stock":5219,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/viper22a-e.pdf","price":"$0.95 @ 1ku","product_introduction":"The VIPER22ADIP-E is an offline switching power supply IC from STMicroelectronics that combines a current-mode PWM controller and a 730V high-voltage power MOSFET on the same silicon die. This integration dramatically reduces component count and simplifies SMPS design. The device features a fixed 60kHz oscillator, undervoltage lockout with hysteresis on the VDD pin, and a high-voltage start-up current source connected to the drain. Protection features include overcurrent, overtemperature, and overvoltage protection with automatic restart. Under light-load conditions, the device enters burst mode to minimize standby power consumption. The DIP-8 package enables up to 20W output power at 195-265VAC input.","working_principle":"The VIPER22ADIP-E operates in current-mode control. At startup, a high-voltage current source from the drain pin charges the external VDD capacitor. When VDD reaches the turn-on threshold (14.5V typical), the start-up current source switches off and the internal MOSFET begins switching at 60kHz. The FB pin receives feedback current from an optocoupler on the secondary side, which sets the peak drain current through an internal 0.23V reference comparator. When VDD drops below the turn-off threshold (8V), switching stops and the start-up current source reactivates. Overvoltage on VDD triggers a hiccup latch that resets when VDD falls below VDDoff. Overcurrent protection limits peak drain current, and overtemperature detection forces auto-restart with thermal hysteresis.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>SOURCE<\/td>Power<\/td>MOSFET source and circuit ground reference<\/td><\/tr>
      2<\/td>SOURCE<\/td>Power<\/td>MOSFET source and circuit ground reference<\/td><\/tr>
      3<\/td>FB<\/td>Input<\/td>Feedback input; 0-1V range sets peak drain current; short to SOURCE for max current limit<\/td><\/tr>
      4<\/td>VDD<\/td>Power<\/td>Supply for control circuits; charged by HV start-up source; monitored by UVLO and OVP<\/td><\/tr>
      5-8<\/td>DRAIN<\/td>Power<\/td>MOSFET drain; also input for HV start-up current source<\/td><\/tr><\/table>","application_scenarios":"
      • Battery Charger Adapters:<\/b> Provides complete offline flyback converter solution for mobile phone and laptop chargers up to 20W with minimal external components<\/li>
      • TV\/Monitor Standby PSU:<\/b> Generates standby 5V\/3.3V rail with burst mode achieving low no-load consumption for energy regulations compliance<\/li>
      • Motor Control Auxiliary Supply:<\/b> Powers gate driver and control logic from mains in inverter and motor drive systems with robust overvoltage protection<\/li>
      • Consumer Electronics:<\/b> Supplies low-voltage rails in set-top boxes, DVD players, and small appliances with auto-restart fault tolerance<\/li>
      • Industrial SMPS:<\/b> Delivers isolated low-power output for sensors and microcontrollers in factory environments with 150\u00b0C junction rating<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Power<\/th>VDS<\/th>Key Difference<\/th><\/tr>
        VIPER22AS-E<\/td>ST<\/td>12W<\/td>730V<\/td>Same die in SO-8 surface mount package<\/td><\/tr>
        VIPER12ADIP-E<\/td>ST<\/td>12W<\/td>730V<\/td>Lower power version, same topology<\/td><\/tr>
        VIPER17LDIP<\/td>ST<\/td>10W<\/td>800V<\/td>Higher voltage, lower power, 800V MOSFET<\/td><\/tr>
        KA5L0380RYDTU<\/td>Fairchild<\/td>38W<\/td>800V<\/td>Higher power, different controller family<\/td><\/tr>
        TOP224P<\/td>Power Integrations<\/td>22W<\/td>700V<\/td>Similar topology, different pinout<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6392","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=6392"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6392\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6392"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6392"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6392"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6392"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}