{"id":7293,"date":"2026-06-24T03:30:36","date_gmt":"2026-06-24T03:30:36","guid":{"rendered":"https:\/\/materialparts.com\/tps386596l33dgkr\/"},"modified":"2026-06-24T03:30:36","modified_gmt":"2026-06-24T03:30:36","slug":"tps386596l33dgkr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps386596l33dgkr\/","title":{"rendered":"TPS386596L33DGKR"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The TPS386596L33DGKR from Texas Instruments is a quad-channel voltage supervisor with manual reset input in an 8-pin VSSOP package. SVS-1 monitors a fixed 2.9V threshold for 3.3V rails, while SVS-2\/3\/4 are adjustable down to 0.4V with 0.25% typical threshold accuracy.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Monitored Voltages<\/td>\n4 channels<\/td>\n<\/tr>\n
SVS-1 Threshold<\/td>\n2.9V fixed (for 3.3V rail)<\/td>\n<\/tr>\n
SVS-2\/3\/4 Threshold<\/td>\nAdjustable down to 0.4V<\/td>\n<\/tr>\n
Threshold Accuracy<\/td>\n0.25% typical<\/td>\n<\/tr>\n
Reset Delay<\/td>\n50 ms fixed<\/td>\n<\/tr>\n
Manual Reset<\/td>\nActive-low MR input<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n7 uA typical<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n1.8 V to 6.5 V<\/td>\n<\/tr>\n
Reset Output<\/td>\nOpen-drain, active-low<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nVSSOP-8 (3.0mm x 3.0mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Four-channel voltage monitoring with one fixed 2.9V and three adjustable thresholds<\/li>\n
  • 0.25% typical threshold accuracy for precise voltage monitoring<\/li>\n
  • Ultra-low 7uA quiescent current for battery-powered applications<\/li>\n
  • Active-low manual reset input with internal 100k pull-up<\/li>\n
  • Fixed 50ms reset timeout with open-drain active-low RESET output<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • FPGA and processor multi-rail power monitoring<\/li>\n
    • Multi-voltage system supervision in industrial equipment<\/li>\n
    • Power supply sequencing and reset generation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS386596L33DGKR from Texas Instruments is a quad-channel voltage supervisor with manual reset input in an 8-pin VSSOP package. SVS-1 monitors a fixed 2.9V threshold for 3.3V rails, while SVS-2\/3\/4 are adjustable down to 0.4V with 0.25% typical threshold accuracy. Key Specifications Monitored Voltages 4 channels SVS-1 Threshold 2.9V fixed (for 3.3V rail) […]<\/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":[32],"tags":[],"chip_brand":[138],"class_list":["post-7293","post","type-post","status-publish","format-standard","hentry","category-low-dropout-regulators-ldo","chip_brand-ti"],"acf":{"brief_explanation":"4-ch voltage supervisor, 2.9V fixed + 3x adj, 0.25% accuracy, 7uA Iq, manual reset, VSSOP-8","date_code":"","package_case":"VSSOP-8 (3.00 x 3.00 x 0.95 mm)","in_stock":7620,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps386596.pdf","price":"$1.12 @ 1ku","product_introduction":"The TPS386596L33DGKR from Texas Instruments is a quad-channel voltage supervisor that monitors four power rails and asserts the RESET signal when any SENSE input drops below its respective threshold. SVS-1 monitors a 3.3V nominal power supply with a fixed 2.9V threshold, requiring no external components. SVS-2, SVS-3, and SVS-4 are adjustable using external resistor dividers and can monitor any supply voltage higher than 0.4V. All SENSE inputs feature 0.25% typical threshold accuracy. The device includes an active-low manual reset (MR) input with an internal 100k pull-up to VDD and a 50ns deglitch circuit. The open-drain active-low RESET output deasserts after a fixed 50ms delay, suitable for connecting to processor reset inputs or regulator enable pins. The ultra-low 7uA quiescent current makes it ideal for battery-powered applications.","working_principle":"The TPS386596L33DGKR monitors four power supply rails using precision comparators. (1) Fixed Threshold (SVS-1): An internal resistor divider sets the SENSE1 threshold at 2.9V for monitoring 3.3V rails. When SENSE1 drops below 2.9V, the comparator output asserts RESET. (2) Adjustable Threshold (SVS-2\/3\/4): External resistor dividers scale the monitored voltage down to the internal 0.4V reference. The target trip voltage is calculated as V_target = (1 + RSnH\/RSnL) x 0.4V. (3) Reset Logic: A NOR gate combines all four comparator outputs and the MR input. If any input indicates a fault, RESET is asserted low. RESET is released only when all SENSE inputs are above their thresholds and MR is high, after a fixed 50ms timeout. (4) Manual Reset: The MR pin allows firmware or external logic to initiate a reset. An internal 100k pull-up holds MR high when unconnected. A 50ns deglitch filter prevents noise from triggering false resets.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>VDD<\/td>Supply voltage (1.8-6.5V)<\/td><\/tr>
      2<\/td>SENSE1<\/td>Fixed 2.9V threshold input (3.3V rail)<\/td><\/tr>
      3<\/td>SENSE2<\/td>Adjustable threshold input<\/td><\/tr>
      4<\/td>GND<\/td>Ground<\/td><\/tr>
      5<\/td>RESET<\/td>Open-drain reset output (active low)<\/td><\/tr>
      6<\/td>MR<\/td>Manual reset input (active low, internal pull-up)<\/td><\/tr>
      7<\/td>SENSE4<\/td>Adjustable threshold input<\/td><\/tr>
      8<\/td>SENSE3<\/td>Adjustable threshold input<\/td><\/tr><\/table>","application_scenarios":"
      • FPGA multi-rail voltage monitoring (3.3V, 1.5V, 1.2V, 1.0V) in VSSOP-8<\/li>
      • Processor power-on reset generation with manual reset override<\/li>
      • Industrial system multi-voltage supervision with 0.25% accuracy<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS386596L33DGKT<\/td>VSSOP-8<\/td>Smaller reel (250pcs)<\/td><\/tr>
        TI<\/td>TPS3823-33DBVR<\/td>SOT-23-5<\/td>Single channel, 3.3V<\/td><\/tr>
        onsemi<\/td>NCP303LSN27T1G<\/td>TSOP-5<\/td>Single channel, 2.7V<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=7293"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7293\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7293"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}