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BQ79600-Q1

UART/SPI-to-BMS daisy-chain bridge

Connects an MCU to TI battery-monitor daisy chains, translating communication rather than measuring cells. Evaluate host interface, wake policy, isolation coupling components and broken-link diagnostics instead of cell-channel count.

AutomotiveActiveExample package: TSSOP (PW) · 16 pinVerified 2026-11-06

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5-second verdict

AutomotiveAEC-Q100 Grade 1

Temperature−40°C to +125°C (TA)

Functional safetyFunctional Safety-Compliant

LifecycleActive

In one sentence: Qualification is grounded in this TI product's documentation; no grade is inferred from temperature. An ordering table may show junction or variant-specific limits, which must be distinguished from ambient conditions. TI explicitly lists Functional Safety-Compliant. This is a device-documentation category, not system ASIL certification; assess the exact function, assumptions and safety manual.

Key specifications

Supply range4.75–40 V

Host interfaceUART / SPI

Logic compatibility3.3 V / 5 V

Link architectureDifferential daisy chain / ring

Isolation couplingTransformer or capacitor; external design

Orderable variants (OPNs)

The GPN is for selection; the full OPN is for ordering. These examples were observed on the verification date, not live stock. Variants may differ in package, temperature, gain/threshold and, for PMICs, NVM/sequencing. Distinguish TA from TJ in the exact datasheet.

OPN	Package	Temperature	Note
BQ79600PWRQ1	TSSOP (PW) · 16 pin	-40 to +125°C (TI OPN listing; verify TA/TJ)	Verify exact OPN, temperature definition and revision; not a stock claim.

BQ79600PWRQ1-40 to +125°C (TI OPN listing; verify TA/TJ)

TSSOP (PW) · 16 pinVerify exact OPN, temperature definition and revision; not a stock claim.

Official ordering page: https://www.ti.com/product/BQ79600-Q1

Typical applications

Battery-management host interfaceFault wake-up in ring architectures

FAQ

Can BQ79600 replace a cell-monitor AFE?

No. It is a bridge. Supported monitors such as BQ7961x/BQ7965x perform cell acquisition and balancing; verify device-specific protocol compatibility.

Does an isolated daisy chain remove isolation design work?

No. Coupling capacitors or transformers, creepage, clearance and withstand ratings remain system design tasks. Ring fault paths and wake configuration also need validation.

How should I verify the BQ79600-Q1 orderable?

The page lists 1 OPN examples from official material checked on 2026-11-06. Match package, function options and temperature definitions; obtain live price/stock from TI or authorized distributors.

Sources and verification

Related selection and design checks

All selection guides →What does TI Q1 mean →AEC-Q100 grades →Model Y TI BOM →

NuAxi is an independent semiconductor market-intelligence platform and is not affiliated with Texas Instruments. Information is for selection reference only and is not a design, certification or procurement guarantee; verify against TI's official datasheet, ordering page and terms.