{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3702CX33QDDCRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3702CX33QDDCRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS3702CX33QDDCRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS3702CX33QDDCRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3702CX33QDDCRQ1, Automotive AEC-Q100 Voltage Detector, 3.3V threshold, Active Low, Open Drain output, SOT-23-6 Thin/TSOT-23-6, -40°C to 125°C.","salesMarkdown":"## 3.3V rail watchdog for automotive ECUs The TPS3702CX33QDDCRQ1 is a single-channel voltage detector from TI's TPS3702 family, monitoring a 3.3V supply rail and asserting an active-low reset when the voltage drops below threshold. The open-drain output lets you wire-OR it with other reset sources on the board, which is common in multi-rail automotive ECU designs where the MCU needs a clean POR from any failing rail. ## AEC-Q100 and the 125°C ceiling That temperature grade covers under-hood and engine-bay environments where the PCB sees conducted heat from the block and radiated heat from the exhaust. The SOT-23-THIN package keeps the footprint small, but the thermal impedance through the small body means the junction tracks ambient closely — derate the threshold accuracy if the part sits next to a hot LDO or a switching regulator on the same board. The base product number TPS3702 covers multiple threshold options in the same footprint, so if a future revision needs a different trip point, the layout stays the same.","metaTitle":"TPS3702CX33QDDCRQ1 Voltage Detector, 3.3V Threshold","metaDescription":"Texas Instruments TPS3702CX33QDDCRQ1 voltage detector with 3.3V threshold, active-low open-drain output. AEC-Q100 qualified for -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"Voltage Detector","Reset":"Active Low","Output":"Open Drain or Open Collector","Series":"Automotive, AEC-Q100","Package":"Bulk","Mounting Type":"Surface Mount","Reset Timeout":"-","Package / Case":"SOT-23-6 Thin, TSOT-23-6","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3702","Voltage - Threshold":"3.3V","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SOT-23-THIN","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.3900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/652c3038009250ee04236478b44334b9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3702CX33QDDCRQ1/alternatives.json"},"ai":{"faq":[{"question":"Is TPS3702CX33QDDCRQ1 suitable for automotive battery monitoring?","answer":"The 3.3V threshold is appropriate for monitoring a regulated 3.3V rail downstream of the battery, not the 12V battery itself."},{"question":"What is the output type of TPS3702CX33QDDCRQ1?","answer":"The output is active-low, open drain (or open collector). This allows multiple detectors to share a common pull-up resistor in a wired-OR configuration, which is typical for system reset generation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3702CX33QDDCRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3702CX33QDDCRQ1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}