{"product_id":"ob2276cp-pwm-control-ic-power-management-whatsminer-p222b","title":"OB2276CP PWM Control IC – Power Management for Whatsminer P222B PSU","description":"\u003ch2\u003eOB2276CP PWM Control IC | Power Management for Whatsminer P222B PSU\u003c\/h2\u003e\n\u003cp\u003eBoost your \u003cstrong\u003ecrypto-mining power supply efficiency\u003c\/strong\u003e with the \u003cstrong\u003eOB2276CP\u003c\/strong\u003e — a highly integrated, current-mode PWM controller engineered for \u003cstrong\u003eWhatsminer P222B PSUs\u003c\/strong\u003e and other offline flyback converters. This cost-effective IC delivers exceptional energy efficiency with \u003cstrong\u003eunder-1W standby power\u003c\/strong\u003e, making it ideal for 24\/7 mining operations where reliability and idle-power savings both matter.\u003c\/p\u003e\n\u003cp\u003eThe chip ships in a compact SOP8 form factor that drops directly into the original P222B footprint. A fixed \u003cstrong\u003e65kHz switching frequency\u003c\/strong\u003e with ±10% tolerance keeps the control loop predictable, and the full protection suite — \u003cstrong\u003ecycle-by-cycle OCP, OVP, OTP, UVLO\u003c\/strong\u003e, all auto-recovery — guards the PSU through the abnormal events typical of harsh mining-farm conditions.\u003c\/p\u003e\n\u003ch3\u003e65kHz Fixed Frequency PWM IC with OCP\/OVP\/OTP — Ideal for Mining Rig Power Adapters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurst mode operation\u003c\/strong\u003e — reduces switching losses under light loads, ideal for variable mining workloads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull protection suite\u003c\/strong\u003e — cycle-by-cycle OCP, OVP, OTP, and UVLO prevent PSU failures in harsh conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e65kHz fixed frequency\u003c\/strong\u003e — stable switching for clean power delivery to ASIC miners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMI reduction technology\u003c\/strong\u003e — minimises interference in high-density mining farms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOP8 compact design\u003c\/strong\u003e — easy integration into mining-PSU repairs and custom power solutions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere the OB2276CP Fits\u003c\/h3\u003e\n\u003cp\u003eTrusted by mining hardware technicians and PSU manufacturers, the OB2276CP ensures long-lasting, efficient power conversion for Bitcoin miners, Whatsminer rigs, and industrial mining setups. The 8V-30V VDD range with 7.4V UVLO threshold matches the auxiliary supply rails on standard P222B-class PSU designs, and burst-mode operation keeps idle losses low between mining workloads. Pair with a fresh primary MOSFET and a clean secondary-side feedback chain when refurbishing a P222B PSU at the chip level.\u003c\/p\u003e\n\u003ch4\u003eOB2276CP PWM Control IC Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Frequency\u003c\/td\u003e\n\u003ctd\u003eFixed 65kHz (±10%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtections\u003c\/td\u003e\n\u003ctd\u003eOCP \/ OLP \/ OVP \/ OTP \/ UVLO (Auto-Recovery)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby Power\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1W (Burst Mode Operation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Type\u003c\/td\u003e\n\u003ctd\u003eSOP8 Compact Form Factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVDD Range\u003c\/td\u003e\n\u003ctd\u003e8V - 30V (UVLO at 7.4V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eMining PSUs, Power Adapters, Battery Chargers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/slm346-isolated-gate-driver-whatsminer-p221-p222-power-supply\"\u003eSLM346 Isolated Gate Driver – Whatsminer P221\/P222 PSU\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/si8261-si8261bbd-isolator-gate-drivers-cryptominer-repair\"\u003eSI8261BBD 5kV Gate Driver – Whatsminer P21 PSU\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/stp6n95k5-mosfet-power-transistor-bitmain-apw12-psu\"\u003eSTP6N95K5 950V N-Channel MOSFET (APW12 PSU)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/tny284dg-off-line-switcher-ic-asic-psu-power-conversion\"\u003eTNY284DG Off-Line Switcher IC (725V)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eP222B repair benches ordering OB2276CP in volume? Email \u003ca href=\"mailto:contact@lys-sz.com\"\u003econtact@lys-sz.com\u003c\/a\u003e for bulk pricing and matched PSU repair kits. Worldwide shipping from our Shenzhen warehouse.\u003c\/p\u003e","brand":"LYS Shenzhen","offers":[{"title":"Default Title","offer_id":44750548074675,"sku":null,"price":0.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6710\/4179\/files\/OB2276CP-PWM-Control-IC-Power-Management-Whatsminer-P222B-Crypto-Mining-PSU-new.webp?v=1749449277","url":"https:\/\/lys-sz.com\/products\/ob2276cp-pwm-control-ic-power-management-whatsminer-p222b","provider":"LYS Shenzhen","version":"1.0","type":"link"}