{"product_id":"tny284dg-off-line-switcher-ic-asic-psu-power-conversion","title":"TNY284DG Off-Line Switcher IC for ASIC Miner PSU","description":"\u003ch2\u003eTNY284DG Off-Line Switcher IC | 725V MOSFET for ASIC Miner PSU Power Conversion\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTNY284DG\u003c\/strong\u003e is an energy-efficient \u003cstrong\u003eoff-line switcher IC\u003c\/strong\u003e built specifically for the kind of high-voltage primary-side switching used in \u003cstrong\u003ecryptocurrency mining power supply units\u003c\/strong\u003e. Its \u003cstrong\u003e725V-rated integrated MOSFET\u003c\/strong\u003e delivers the headroom required for direct-from-mains operation, while \u003cstrong\u003e±5% voltage regulation accuracy\u003c\/strong\u003e keeps the PSU output stable enough for the tight tolerances ASIC miners need to hash reliably.\u003c\/p\u003e\n\u003cp\u003eDesigned for 24\/7 mining environments, the TNY284DG combines ON\/OFF control simplicity (no complex compensation networks required) with frequency-jittering EMI reduction and hysteretic thermal shutdown — exactly the behaviour that keeps a PSU recoverable rather than dead after a transient fault. For repair benches working through APW-style failures or building drop-in replacements for Whatsminer\/Antminer PSU boards, the TNY284DG is a reliable line-replaceable part.\u003c\/p\u003e\n\u003ch3\u003e725V-Rated MOSFET with Auto-Restart Protection for Reliable Mining Operations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced BV derating margin\u003c\/strong\u003e for high-bus-voltage designs typical of mining PSUs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-restart protection\u003c\/strong\u003e (\u0026lt;3% max power in faults) prevents mining downtime by recovering automatically after fault clearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency-jittering technology\u003c\/strong\u003e reduces EMI interference in dense mining-farm racks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eON-time extension\u003c\/strong\u003e minimises input capacitance requirements and simplifies the BoM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHysteretic thermal shutdown\u003c\/strong\u003e with automatic recovery — protects the chip without forcing a manual reset.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple ON\/OFF control\u003c\/strong\u003e eliminates complex compensation networks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTNY284DG Repair Use Cases\u003c\/h3\u003e\n\u003cp\u003eThe chip is the brain of the primary-side feedback loop in an off-line flyback or quasi-resonant PSU. Failure modes typically present as a PSU that stays dead at the wall, cycles on\/off when load is applied, or fails to start under cold conditions. Replacing the TNY284DG (after verifying the surrounding MOSFETs and rectifiers are healthy) is a standard recovery path that brings ASIC PSUs back to spec without a full board replacement. Beyond mining PSUs, the same part also lands in chargers, adapters, and similar off-line conversion designs.\u003c\/p\u003e\n\u003ch4\u003eTNY284DG Off-Line Switcher 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\u003eMOSFET Rating\u003c\/td\u003e\n\u003ctd\u003e725V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Threshold Accuracy\u003c\/td\u003e\n\u003ctd\u003e±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Limit Adjustment\u003c\/td\u003e\n\u003ctd\u003eVia BP\/M pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Protection\u003c\/td\u003e\n\u003ctd\u003eHysteretic shutdown with auto-recovery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFault Protection\u003c\/td\u003e\n\u003ctd\u003eAuto-restart (\u0026lt;3% max power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Method\u003c\/td\u003e\n\u003ctd\u003eSimple ON\/OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMI Reduction\u003c\/td\u003e\n\u003ctd\u003eFrequency jittering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRegulation Range\u003c\/td\u003e\n\u003ctd\u003eExtended low-line via ON-time extension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Applications\u003c\/td\u003e\n\u003ctd\u003eASIC Miner PSUs, Chargers, Adapters\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\/ixfp4n85x-850v-n-channel-mosfet-mining-psu-dc-converter\"\u003eIXFP4N85X 850V N-Channel MOSFET (Mining 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\/ltv-817c-optocoupler-isolator-5kv-bitmain-apw8-apw9-apw17-psu\"\u003eLTV-817C Optocoupler – APW8\/APW9\/APW17 PSU\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/nsi8100n-isolator-chip-bitmain-apw17-power-supply-unit\"\u003eNSi8100N Isolator Chip – APW17 PSU\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePSU repair shops ordering TNY284DG in tray quantities can email \u003ca href=\"mailto:contact@lys-sz.com\"\u003econtact@lys-sz.com\u003c\/a\u003e for bulk pricing and matched ASIC PSU repair kits. Worldwide shipping from our Shenzhen warehouse.\u003c\/p\u003e","brand":"LYS Shenzhen","offers":[{"title":"Default Title","offer_id":44759553966259,"sku":null,"price":0.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6710\/4179\/files\/TNY284DG-Off-Line-Switcher-IC-MOSFET-ASIC-Miner-PSU.webp?v=1774249804","url":"https:\/\/lys-sz.com\/products\/tny284dg-off-line-switcher-ic-asic-psu-power-conversion","provider":"LYS Shenzhen","version":"1.0","type":"link"}