{"id":10573,"date":"2026-07-20T05:50:56","date_gmt":"2026-07-20T05:50:56","guid":{"rendered":"https:\/\/ic-vendor.com\/tps25940lrpw\/"},"modified":"2026-07-20T05:50:56","modified_gmt":"2026-07-20T05:50:56","slug":"tps25940lrpw","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/tps25940lrpw\/","title":{"rendered":"TPS25940LRPW"},"content":{"rendered":"

Productos<\/h2>\n

The Texas Instruments TPS25940LRPW is a 2.7V to 18V, 42m\u03a9 electronic fuse (eFuse) with true reverse current blocking and DevSleep mode support for SATA SSDs. It provides programmable current limiting (0.6A to 5.3A), overvoltage\/undervoltage protection, and power good\/fault signaling. The device integrates back-to-back MOSFETs for bidirectional current control in a 20-pin VQFN package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Operating Voltage Range<\/td>\n2.7V to 18V (20V max)<\/td>\n<\/tr>\n
On-Resistance (RON)<\/td>\n42 m\u03a9 (typical)<\/td>\n<\/tr>\n
Adjustable Current Limit<\/td>\n0.6A to 5.3A (\u00b18% accuracy)<\/td>\n<\/tr>\n
OV\/UV Threshold Accuracy<\/td>\n\u00b12%<\/td>\n<\/tr>\n
Reverse Current Blocking<\/td>\nTrue reverse blocking (VIN < VOUT - 10mV)<\/td>\n<\/tr>\n
Reverse Voltage Shutoff Time<\/td>\n1 \u00b5s<\/td>\n<\/tr>\n
Corriente de reposo<\/td>\n200 \u00b5A (typ)<\/td>\n<\/tr>\n
DevSleep Mode IQ<\/td>\n95 \u00b5A (typ)<\/td>\n<\/tr>\n
Shutdown IQ<\/td>\n15 \u00b5A (typ)<\/td>\n<\/tr>\n
Current Monitor (IMON) Accuracy<\/td>\n\u00b18%<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +125\u00b0C (junction)<\/td>\n<\/tr>\n
Paquete<\/td>\nVQFN-20 (RVC), 3.5\u00d73.5mm<\/td>\n<\/tr>\n
Safety Certification<\/td>\nUL 2367 recognized, IEC 62368-1<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Integrated back-to-back FETs for bidirectional current control<\/li>\n
  • True reverse current blocking with 1\u00b5s shutoff response<\/li>\n
  • Programmable output voltage slew rate (dV\/dt) for inrush control<\/li>\n
  • DevSleep mode for SATA Device Sleep compliance (95\u00b5A IQ)<\/li>\n
  • Precise current monitor output (IMON) with \u00b18% accuracy<\/li>\n
  • Programmable overvoltage and undervoltage thresholds (\u00b12%)<\/li>\n
  • Power Good (PGOOD) and Fault (FLT) output signals<\/li>\n
  • Open\/short ILIM pin detection for fail-safe design<\/li>\n
  • Thermal shutdown at 160\u00b0C with latch-off or auto-retry options<\/li>\n
  • UL 2367 and IEC 62368-1 safety certified<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Enterprise SSD power management<\/li>\n
    • Hot-swap and hot-plug power management<\/li>\n
    • Server and storage system protection<\/li>\n
    • Industrial power rail protection<\/li>\n
    • USB-C and Thunderbolt power path management<\/li>\n
    • Battery-powered system protection<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Texas Instruments TPS25940LRPW is a 2.7V to 18V, 42m\u03a9 electronic fuse (eFuse) with true reverse current blocking and DevSleep mode support for SATA SSDs. It provides programmable current limiting (0.6A to 5.3A), overvoltage\/undervoltage protection, and power good\/fault signaling. The device integrates back-to-back MOSFETs for bidirectional current control in a 20-pin VQFN package. […]<\/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],"tags":[1906,1904,1905,1894,1903],"chip_brand":[1893],"class_list":["post-10573","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","tag-devsleep","tag-efuse","tag-power-protection","tag-texas-instruments","tag-tps25940lrpw","chip_brand-texas-instruments"],"acf":{"brief_explanation":"2.7-18V 42m\u03a9 eFuse, reverse current blocking, DevSleep, 0.6-5.3A current limit, VQFN-20, TI","date_code":"","package_case":"VQFN-20 (RVC) 3.5\u00d73.5mm with thermal pad","in_stock":12000,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps25940.pdf","price":"$1.11 @ 1000+","product_introduction":"The Texas Instruments TPS25940LRPW is a smart electronic fuse (eFuse) with integrated back-to-back MOSFETs providing 42m\u03a9 on-resistance and true reverse current blocking. Operating from 2.7V to 18V, it offers programmable current limiting (0.6A-5.3A, \u00b18%), overvoltage\/undervoltage protection (\u00b12%), and programmable dV\/dt inrush control. A unique DevSleep mode (95\u00b5A IQ) supports SATA Device Sleep compliance for SSD power management. The device provides precise current monitoring (IMON, \u00b18%), Power Good (PGOOD), and Fault (FLT) outputs. Safety certifications include UL 2367 and IEC 62368-1. The TPS25940L variant latches off on fault; TPS25940A variant auto-retries.","working_principle":"The TPS25940 integrates two back-to-back N-channel MOSFETs between IN and OUT, enabling bidirectional current blocking. During normal operation, both FETs are fully enhanced (42m\u03a9 total). The device continuously monitors: (1) Load current via an internal sense resistor \u2014 if current exceeds the programmed limit (set by RILIM), the FET operates in linear mode to clamp current; if a fast-trip threshold is exceeded (short circuit), the FET turns off immediately within <1\u00b5s; (2) Input voltage via EN\/UVLO pin \u2014 if VIN drops below the UVLO threshold or rises above the OVP threshold (\u00b12% accuracy), the FET turns off and FLT asserts; (3) Reverse current \u2014 a comparator monitors VIN vs VOUT; if VOUT exceeds VIN by >10mV (reverse condition), the FET turns off within 1\u00b5s to prevent backfeed; (4) Junction temperature \u2014 if TJ exceeds 160\u00b0C, thermal shutdown activates. The dV\/dT pin controls output ramp rate during startup via an external capacitor, limiting inrush current. DevSleep mode (DEVSLP pin high) reduces IQ to 95\u00b5A while maintaining output voltage and essential protections.","pin_description":"Pin Description(Output pin definitions in table format only; return pure content without derivation or extra elaboration)","application_scenarios":"Application Scenarios (Output pin definitions in table format only; return pure content without derivation or extra elaboration)","alternative_models":"TPS25940LRVCR (VQFN-20, tape & reel); TPS25940A (auto-retry variant); TPS25942 (higher current, 5.5A); TPS25200 (simpler eFuse, 2.5A); MAX17523 (Maxim, similar eFuse); NCP45520 (ON Semi, load switch with current limit)"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10573","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=10573"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10573\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=10573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=10573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=10573"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=10573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}