TI RES80A-Q1 divider signals where EV-grade passives are headed for HV BMS

TI rolls an AEC-Q200 50 MΩ divider rated to 2,000 V DC for EV battery management, underscoring how automotive specs now reshape passive-component sourcing.

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TL;DR — 세 문장

  • TI released the RES80A-Q1, a 50 MΩ precision divider rated to 2,000 V DC and qualified to AEC-Q200, primarily for EV battery management. (S1)
  • Initial ratio accuracy is ±0.1% (max) with lifetime drift held inside ±0.3% (max) without calibration. (S1)
  • The 8-pin SOIC keeps creepage and clearance between HV and LV pins at ≥ 8.5 mm to meet safety mandates. (S1)

출처: key_takeaways (실제 필드, 최대 3개 항목). 사실과 분석은 별도로 표시됩니다.

TI RES80A-Q1 divider signals where EV-grade passives are headed for HV BMSEditorial cover for a component sourcing brief. Power motif; headline "TI RES80A-Q1 divider signals where EV-grade passives are headed for HV BMS". Reported key numbers: 2,000 V DC. 1 cited source. Static cover (no animation).TI RES80A-Q1 divider signals whereEV-grade passives are headed for HV BMSREPORTED KEY NUMBERS2,000 V DC1 sourceXAIPART
Cover image generated from data already shown on this page: the category motif, the headline, and reported key numbers. No decorative illustration; no third-party image.

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Reported by EDN on 2026-10-17. Summarized and analyzed by XAIPART Editorial.

What happened

Texas Instruments has released the RES80A-Q1, a precision-resistive divider aimed at high-voltage EV battery packs and qualified to AEC-Q200, the automotive-grade rating for passive components.S1 The article framed the part as an example of how the growing sophistication of EV, hybrid and even internal combustion drivetrains is reshaping requirements for passive components.S1

The device is a matched-resistor divider that scales a high bus voltage down to a level the battery management system (BMS) can measure.S1 It is built on a high-performance analog-wafer process with an insulative silicon dioxide (SiO2) layer encapsulating the resistors, enabling sustained operation at up to 2,000 V DC.S1

Housed in an 8-pin SOIC measuring 7.5 mm by 5.85 mm, the package maintains creepage and clearance of at least 8.5 mm between high-voltage and low-voltage pins to meet safety mandates.S1 Ratio-matching precision is within ±0.1% (max), with cumulative drift of ±0.2% (max) over the specified temperature range and aging, keeping the uncalibrated lifetime tolerance inside ±0.3% (max).S1

The part is sold as a standard catalog item rather than a custom device, which the article says makes it accessible to non-automotive designs facing high-voltage sensing without a low-volume custom run.S1 EDN also notes that the broader move toward more electronic content per car is making diagnostics harder and replacement parts more vehicle-specific, citing the author's two-month wait for a 2019-model electronic door-lock module as an example.S1

Key numbers from the source
MetricReported valueSource
AEC qualificationAEC-Q200[S1]
Total resistance50 MΩ[S1]
Sustained high-voltage rating2,000 V DC[S1]
Package (8-pin SOIC body)7.5 mm × 5.85 mm[S1]
Creepage / clearance (HV to LV pins)≥ 8.5 mm[S1]
Initial ratio accuracy±0.1% (max)[S1]
Lifetime drift envelope±0.3% (max), uncalibrated[S1]
Average age of U.S. car on the roadOver 12 years (per Kelley Blue Book, cited by EDN)[S1]

Background timeline

  1. No prior milestones disclosed by the source.

XAIPART take

Technical impact

The RES80A-Q1 collapses what would historically have been a discrete resistor-string plus isolation barrier into a single AEC-Q200-qualified SOIC with guaranteed ratio matching. XAIPART analysis For 400 V and 800 V EV packs, the 2,000 V DC headroom is the relevant design envelope, and the 8.5 mm creepage lets the divider sit close to the bus while still satisfying IEC 60664-style spacing rules. XAIPART analysis Designers get a calibrated ratiometric output that can be paired with a lower-voltage ADC rather than a dedicated high-voltage front end, which is the real board-level simplification.

Market impact

Offering the part as a catalog device, not a custom, lowers the barrier for industrial, renewable-energy and medical high-voltage projects to inherit an automotive-qualified passive. XAIPART analysis Sourcing teams should expect TI to defend the line on long-term availability rather than price, given that AEC-Q200 qualifications tend to lock in multi-year production windows. XAIPART analysis Competing high-voltage divider modules from Murata, Vishay and Yageo are likely to follow with matched AEC-Q200 parts in similar SOIC footprints, which is worth tracking if a second source is required.

Action

Verify that 8.5 mm creepage clears the target PCB layout at the planned pack voltage before assigning the part number, and confirm the SOIC footprint fits the BMS ADC reference input range without an additional buffer. XAIPART analysis Cross-check the temperature and humidity profiles in datasheet revisions against the application environment; asking TI for a PPAP-style or change-control letter now is cheaper than a redesign if the part is later revised.

XAIPART Forecast

XAIPART expects that by Q3 2027 at least one second-source supplier will publish an AEC-Q200 high-voltage resistive divider with a ≥ 1,500 V DC rating in a sub-10 mm SOIC footprint; if no such competing part appears in TI distributor catalogs by 2027-09-30, this forecast is wrong. XAIPART analysis

Facts are as reported by the cited source. The design-in, sourcing and forward-looking statements above are XAIPART's analysis, not the source's claims. Pricing, lead time and second-source availability for the RES80A-Q1 were not disclosed by the source; the average-car-age figure rests on a single external citation (Kelley Blue Book) reported by EDN.

Corrections: none at publication. This brief will be updated with a timestamp if the source corrects its report.

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XAIPART expects that by Q3 2027 at least one second-source supplier will publish an AEC-Q200 high-voltage resistive divider with a ≥ 1,500 V DC rating in a sub-10 mm SOIC footprint no such competing part appears in TI distributor catalogs by 2027-09-30 Pending

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Source: FRED · Generated · reference output z and composite are algorithm outputs, not a fetch snapshot

Cost pressure by dimension — composite stateDiverging bars for three dimensions around a zero midpoint. Input Cost has no reading; Supply Demand z -1.4711, notable; Fx Energy z 0.4541, neutral. Composite index -7.6, band neutral.0Input costno readingSupply/demandz −1.4711 · notable46 dFX & energyz +0.4541 · neutral6 dcomposite −7.6 · neutral−100 · −40 · −15 · 0 · +15 · +40 · +100
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DimensionFRED series IDUnitLagAs of
Input costPCOPPUSDM, PALUMUSDM, PNICKUSDMUSD/mt96 d
Supply/demandPCU334413334413, IPG3344Sindex(1982=100) / index(2017=100)46 d
FX & energyDEXCHUS, DCOILBRENTEU, DHHNGSPrate / USD/bbl / USD/MMBtu6 d

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출처

  1. Automotive demands driving passive components to extreme performance — https://www.edn.com/automotive-demands-driving-passive-components-to-extreme-performance/ · rss · 조회일

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