{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3899DL01DSERQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3899DL01DSERQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS3899DL01DSERQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS3899DL01DSERQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Automotive, AEC-Q100 series, TPS3899DL01DSERQ1 – Regulator/Supervisor, active-low open-drain output, adjustable/selectable voltage threshold, 40 µs typical reset timeout, -40°C to 125°C, 6-WFDFN package.","salesMarkdown":"## Why this supervisor exists The TPS3899DL01DSERQ1 is a nanopower voltage supervisor from Texas Instruments, AEC-Q100 qualified for automotive applications. It monitors a single supply rail and asserts a reset output when the voltage drops below the threshold, then releases it after a 40 µs typical timeout once the rail recovers. This is the same topology used in the TLV803 family, making the pin function familiar if you are migrating from that series. ## Adjustable threshold vs. fixed — the BOM fit The threshold is adjustable/selectable, not factory-trimmed to a single voltage. This lets one order code cover multiple rail voltages on the board — 3.3 V, 5 V, or any value set by the external resistor divider — which simplifies inventory and reduces the number of unique line items on the BOM. By contrast, the TLV803ED29DBZR has a fixed 2.93 V threshold. If your design needs to monitor a 1.8 V or 1.2 V rail, the TPS3899DL01DSERQ1's adjustable range is the practical choice; if you only ever monitor a single fixed rail, the TLV803 may be simpler and cheaper. ## 125°C and AEC-Q100 — under-hood ready Production orders are standard; no allocation or end-of-life risk for ongoing builds. ## 6-WSON package — footprint and layout Housed in a 6-WFDFN package, supplier device package 6-WSON (1.5x1.5). The open-drain output requires a pull-up resistor to the monitoring logic's supply rail — typically 10 kΩ to 100 kΩ. Without it the output floats and the downstream microcontroller sees an indeterminate logic level.","metaTitle":"TPS3899DL01DSERQ1 – Automotive Supervisor, Active Low","metaDescription":"Texas Instruments TPS3899DL01DSERQ1 – AEC-Q100 qualified supervisor with active-low open-drain output, adjustable threshold, 40 µs reset timeout, -40°C to","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"Regulator/Supervisor","Reset":"Active Low","Output":"Open Drain or Open Collector","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR) Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"40µs Typical","Package / Case":"6-WFDFN","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Threshold":"Adjustable/Selectable","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"6-WSON (1.5x1.5)","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0500","priceTiers":[{"qty":1,"price":"$1.05000","currency":"USD"},{"qty":10,"price":"$0.95700","currency":"USD"},{"qty":25,"price":"$0.94560","currency":"USD"},{"qty":50,"price":"$0.93980","currency":"USD"},{"qty":100,"price":"$0.84030","currency":"USD"},{"qty":250,"price":"$0.83324","currency":"USD"},{"qty":500,"price":"$0.82090","currency":"USD"},{"qty":1000,"price":"$0.79154","currency":"USD"},{"qty":3000,"price":"$0.74511","currency":"USD"},{"qty":6000,"price":"$0.72096","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3b17a046f7008013368dd5b278db8d9c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3899DL01DSERQ1/alternatives.json"},"ai":{"faq":[{"question":"What is the reset timeout of TPS3899DL01DSERQ1?","answer":"The reset timeout is 40 µs typical. This is a short timeout — suitable for fast power-on sequencing but may not filter out brief supply glitches shorter than 40 µs. If you need a longer timeout to debounce a noisy rail, consider the TLV803EA29VDBZR which has a 130 ms minimum timeout."},{"question":"What is the closest functional second-source to TPS3899DL01DSERQ1?","answer":"The TLV803ED29DBZR is a functional peer with the same active-low open-drain output and surface-mount package. Key differences: the TLV803 has a fixed 2.93 V threshold (not adjustable) and a 33 ms minimum reset timeout (vs. 40 µs typical). It is not a pin-to-pin replacement — verify the threshold and timeout suit your rail before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3899DL01DSERQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3899DL01DSERQ1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}