{"id":5453,"date":"2026-06-10T02:14:32","date_gmt":"2026-06-10T02:14:32","guid":{"rendered":"https:\/\/materialparts.com\/tps3307-33dgnr\/"},"modified":"2026-06-10T02:14:32","modified_gmt":"2026-06-10T02:14:32","slug":"tps3307-33dgnr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps3307-33dgnr\/","title":{"rendered":"TPS3307-33DGNR"},"content":{"rendered":"

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

The TPS3307-33DGNR from Texas Instruments is a triple-voltage microprocessor supervisor in an 8-pin HVSSOP PowerPAD package. It monitors 3.3V, 5V, and an adjustable voltage rail simultaneously, providing active-low RESET and active-high RESET outputs with 200ms fixed delay, manual reset input, and only 40uA supply current.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Monitored Voltages<\/td>\n3.3V, 5V, and Adjustable (>1.25V)<\/td>\n<\/tr>\n
SENSE1 Threshold<\/td>\n4.55V (5V rail monitoring)<\/td>\n<\/tr>\n
SENSE2 Threshold<\/td>\n2.93V (3.3V rail monitoring)<\/td>\n<\/tr>\n
SENSE3 Threshold<\/td>\nAdjustable (>1.25V via resistor divider)<\/td>\n<\/tr>\n
Threshold Accuracy<\/td>\nTemperature-compensated reference<\/td>\n<\/tr>\n
Reset Delay<\/td>\n200ms fixed (no external capacitor)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2V to 6V<\/td>\n<\/tr>\n
Supply Current<\/td>\n40 uA max<\/td>\n<\/tr>\n
RESET Output<\/td>\nActive-low, valid from VDD >= 1.1V<\/td>\n<\/tr>\n
RESET Output<\/td>\nActive-high<\/td>\n<\/tr>\n
Manual Reset (MR)<\/td>\nYes (active low)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nHVSSOP-8 PowerPAD (3.1 x 3.1 mm)<\/td>\n<\/tr>\n
Status<\/td>\n\u6d3b\u8dc3<\/td>\n<\/tr>\n
Automotive<\/td>\nYes (qualified)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Triple supervisory circuits for DSP\/processor systems<\/li>\n
  • Monitors 3.3V, 5V, and adjustable third rail<\/li>\n
  • 200ms fixed reset delay (no external capacitor)<\/li>\n
  • Temperature-compensated voltage reference<\/li>\n
  • 40uA max supply current<\/li>\n
  • RESET valid from VDD >= 1.1V<\/li>\n
  • Manual reset input (MR)<\/li>\n
  • Both active-low and active-high RESET outputs<\/li>\n
  • Small HVSSOP-8 with PowerPAD<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • DSP and processor-based systems<\/li>\n
    • Multi-voltage FPGA\/CPU monitoring<\/li>\n
    • Industrial control systems<\/li>\n
    • Automotive ECUs<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS3307-33DGNR from Texas Instruments is a triple-voltage microprocessor supervisor in an 8-pin HVSSOP PowerPAD package. It monitors 3.3V, 5V, and an adjustable voltage rail simultaneously, providing active-low RESET and active-high RESET outputs with 200ms fixed delay, manual reset input, and only 40uA supply current. Key Specifications Monitored Voltages 3.3V, 5V, and Adjustable […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,32],"tags":[],"chip_brand":[138],"class_list":["post-5453","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-ti"],"acf":{"brief_explanation":"Triple supervisor, 3.3V\/5V\/Adj, 200ms delay, HVSSOP-8","date_code":"","package_case":"HVSSOP-8 PowerPAD (3.1 x 3.1 x 0.95 mm)","in_stock":7636,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps3307.pdf","price":"$1.60 @ 1ku","product_introduction":"The TPS3307-33DGNR from Texas Instruments is a triple-voltage microprocessor supervisory circuit in an 8-pin HVSSOP PowerPAD package. The 33 denotes monitoring 3.3V and 5V rails plus an adjustable input, DGN denotes the HVSSOP-8 (MSOP-8 with PowerPAD) package, and R denotes tape and reel. The device monitors three independent voltage rails simultaneously: SENSE1 monitors the 5V rail with a 4.55V threshold, SENSE2 monitors the 3.3V rail with a 2.93V threshold, and SENSE3 monitors an adjustable voltage above 1.25V set by an external resistor divider. If any monitored voltage falls below its threshold, the RESET output asserts low. After all voltages return above threshold, a fixed 200ms timer delays RESET de-assertion to ensure proper system initialization, with no external capacitor required. A manual reset input (MR) allows external reset triggering. Both active-low RESET and active-high RESET outputs are provided. The device is qualified for automotive applications and draws only 40uA maximum supply current.","working_principle":"The TPS3307-33DGNR operates through four subsystems: (1) Voltage Monitoring: Three independent voltage comparators with temperature-compensated reference monitor SENSE1 (4.55V threshold for 5V rail), SENSE2 (2.93V threshold for 3.3V rail), and SENSE3 (adjustable, >1.25V). Each comparator asserts an internal fault signal when its input drops below the threshold voltage with built-in hysteresis. (2) Reset Logic: The internal fault signals are OR-gated: if any one of the three monitored voltages drops below threshold, or if MR is pulled low, the RESET output asserts. The RESET output is guaranteed valid from VDD as low as 1.1V, ensuring reset protection even during VDD ramp-up. (3) Reset Timer: Once all SENSE inputs rise above their thresholds and MR is released, a 200ms fixed timer starts. RESET remains asserted for the full 200ms delay period, ensuring the supervised processor has adequate time to complete its power-on initialization. No external timing capacitor is needed. (4) Dual Outputs: Both active-low RESET (open-drain with internal pullup) and active-high RESET (push-pull) outputs are provided to accommodate different processor reset input requirements.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>SENSE3<\/td>Input<\/td>Adjustable voltage sense input (>1.25V)<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      3<\/td>SENSE1<\/td>Input<\/td>5V rail sense (4.55V threshold)<\/td><\/tr>
      4<\/td>SENSE2<\/td>Input<\/td>3.3V rail sense (2.93V threshold)<\/td><\/tr>
      5<\/td>RESET<\/td>Output<\/td>Active-high reset output<\/td><\/tr>
      6<\/td>RESET<\/td>Output<\/td>Active-low reset output<\/td><\/tr>
      7<\/td>MR<\/td>Input<\/td>Manual reset (active low)<\/td><\/tr>
      8<\/td>VDD<\/td>Power<\/td>Supply voltage (2-6V)<\/td><\/tr><\/table>","application_scenarios":"
      • DSP system monitoring 5V I\/O, 3.3V core, and adjustable 1.8V PLL rail with single supervisor IC<\/li>
      • Automotive ECU with 5V sensor supply, 3.3V MCU supply, and adjustable battery monitor, qualified for automotive use<\/li>
      • FPGA board with 3.3V, 5V, and 1.2V core voltage monitoring, manual reset button on MR input<\/li>
      • Industrial controller requiring both active-low and active-high reset outputs for mixed processor\/MCU systems<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Monitored Rails<\/th>Package<\/th>Notes<\/th><\/tr>
        TPS3307-18DGNR<\/td>TI<\/td>3.3V\/1.8V\/Adj<\/td>HVSSOP-8<\/td>1.8V instead of 5V<\/td><\/tr>
        TPS3307-25DGNR<\/td>TI<\/td>3.3V\/2.5V\/Adj<\/td>HVSSOP-8<\/td>2.5V instead of 5V<\/td><\/tr>
        TPS3823-33DBVR<\/td>TI<\/td>3.3V single<\/td>SOT-23-5<\/td>Single-voltage supervisor<\/td><\/tr>
        MAX809TR<\/td>Maxim\/ADI<\/td>Single<\/td>SOT-23-3<\/td>Simple single-rail reset<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5453","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=5453"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5453\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5453"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}