{"id":8372,"date":"2026-06-28T13:39:14","date_gmt":"2026-06-28T13:39:14","guid":{"rendered":"https:\/\/materialparts.com\/tps3110e15dbvr\/"},"modified":"2026-06-28T13:39:14","modified_gmt":"2026-06-28T13:39:14","slug":"tps3110e15dbvr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps3110e15dbvr\/","title":{"rendered":"TPS3110E15DBVR"},"content":{"rendered":"

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

The TPS3110E15DBVR from Texas Instruments is an ultra-low supply current voltage supervisor with watchdog timer in a SOT-23-6 package. With 1.2 \u00b5A typical supply current, 1.5 V threshold voltage, and push-pull reset output, it provides precision voltage monitoring for DSP and processor-based systems.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Threshold Voltage<\/td>\n1.5 V (VIT-)<\/td>\n<\/tr>\n
Threshold Accuracy<\/td>\n0.75%<\/td>\n<\/tr>\n
Supply Current<\/td>\n1.2 \u00b5A (typ)<\/td>\n<\/tr>\n
Reset Output<\/td>\nPush-pull, active low<\/td>\n<\/tr>\n
\u770b\u95e8\u72d7\u5b9a\u65f6\u5668<\/td>\nYes (1.6 s timeout typ)<\/td>\n<\/tr>\n
Manual Reset<\/td>\nYes (MR pin)<\/td>\n<\/tr>\n
Reset Timeout<\/td>\n130 ms (typ)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n0.9 V to 3.6 V (operating)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-6<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-low 1.2 \u00b5A typical supply current preserves battery life<\/li>\n
  • Precision 0.75% threshold accuracy over temperature<\/li>\n
  • Integrated watchdog timer for microprocessor supervision<\/li>\n
  • Manual reset input for system-initiated reset<\/li>\n
  • RESET valid with VDD as low as 0.4 V<\/li>\n
  • 130 ms power-on reset timeout<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • DSP and processor reset supervision<\/li>\n
    • Battery-powered system voltage monitoring<\/li>\n
    • FPGA and ASIC power-on reset<\/li>\n
    • Portable medical device supervision<\/li>\n
    • Industrial control system watchdog<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS3110E15DBVR from Texas Instruments is an ultra-low supply current voltage supervisor with watchdog timer in a SOT-23-6 package. With 1.2 \u00b5A typical supply current, 1.5 V threshold voltage, and push-pull reset output, it provides precision voltage monitoring for DSP and processor-based systems. Key Specifications Threshold Voltage 1.5 V (VIT-) Threshold Accuracy 0.75% […]<\/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":[19,13],"tags":[],"chip_brand":[138],"class_list":["post-8372","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Ultra-low-Iq voltage supervisor with watchdog, 1.5V threshold, push-pull reset, SOT-23-6","date_code":"","package_case":"SOT-23-6 (2.90 x 1.60 x 1.20 mm)","in_stock":12090,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps3110.pdf","price":"$1.10 @ 1ku","product_introduction":"The TPS3110E15DBVR from Texas Instruments is an ultra-low supply current voltage supervisor with an integrated watchdog timer in a compact SOT-23-6 package. The E15 suffix indicates a 1.5 V threshold voltage with 0.75% accuracy for precise monitoring of low-voltage supply rails. The device draws only 1.2 \u00b5A typical supply current, making it ideal for battery-powered applications where standby current must be minimized. The push-pull active-low RESET output provides a defined logic level without external pull-up resistors. The integrated watchdog timer monitors microprocessor activity with a 1.6 second timeout, asserting RESET if the processor fails to toggle the WDI pin within the timeout period. A manual reset (MR) input allows system-initiated reset via a push-button or logic signal. The power-on reset generator provides a 130 ms timeout to ensure stable supply voltage before releasing RESET.","working_principle":"The TPS3110E15DBVR monitors the VDD supply voltage through an internal resistive divider that sets the threshold at 1.5 V (VIT-). When VDD drops below the threshold, the comparator output forces RESET low. When VDD rises above VIT- plus hysteresis, an internal timer starts counting 130 ms before releasing RESET high. The watchdog timer is a free-running oscillator that starts counting when WDI is not toggled. If WDI is not toggled within the watchdog timeout period (1.6 s typical), the watchdog asserts RESET low. Each WDI transition resets the watchdog counter. The manual reset (MR) input has an internal pull-up to VDD and asserts RESET low when driven below 0.4 V. All outputs are valid with VDD as low as 0.4 V, ensuring a defined reset state during power-up and power-down transients.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>MR<\/td>Manual reset input; active low, internal pull-up to VDD<\/td><\/tr>
      2<\/td>GND<\/td>Ground connection<\/td><\/tr>
      3<\/td>RESET<\/td>Active-low push-pull reset output<\/td><\/tr>
      4<\/td>WDI<\/td>Watchdog input; must be toggled within timeout to prevent reset<\/td><\/tr>
      5<\/td>VDD<\/td>Supply voltage and sense input (0.9 V to 3.6 V)<\/td><\/tr>
      6<\/td>NC<\/td>No connect<\/td><\/tr><\/table>","application_scenarios":"
      • Processor Reset Supervision<\/strong>: Monitoring 1.5V core voltage rail in DSP and FPGA systems with watchdog protection against code runaway<\/li>
      • Battery-Powered Systems<\/strong>: Ultra-low 1.2 \u00b5A supply current monitoring coin-cell or lithium primary battery voltage in IoT devices<\/li>
      • Portable Medical Devices<\/strong>: Voltage supervision and watchdog for microcontroller-based glucose meters and pulse oximeters<\/li>
      • Industrial Control<\/strong>: Watchdog timer protecting PLCs and motor controllers against software hang conditions<\/li>
      • Power Supply Sequencing<\/strong>: Reset generation during multi-rail power-up and power-down sequences<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Threshold<\/th>Iq<\/th>WD<\/th>Output<\/th>Notes<\/th><\/tr>
        TPS3106E09DBVR<\/td>TI<\/td>0.9 V<\/td>1.2 \u00b5A<\/td>No<\/td>Open-drain<\/td>Lower threshold, dual output<\/td><\/tr>
        MAX6346UR29+T<\/td>Analog Devices<\/td>2.93 V<\/td>1 \u00b5A<\/td>No<\/td>Push-pull<\/td>Similar Iq, higher threshold<\/td><\/tr>
        ADM811JARTZ-REEL7<\/td>ADI<\/td>2.93 V<\/td>5 \u00b5A<\/td>No<\/td>Push-pull<\/td>Higher Iq, no watchdog<\/td><\/tr>
        TPS3839K33DBVR<\/td>TI<\/td>3.3 V<\/td>150 nA<\/td>No<\/td>Open-drain<\/td>Nano-power, no watchdog<\/td><\/tr>
        MAX6818MEUB+T<\/td>Analog Devices<\/td>Adj<\/td>3 \u00b5A<\/td>Yes<\/td>Open-drain<\/td>Adjustable threshold<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8372","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=8372"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8372\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=8372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=8372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=8372"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=8372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}