{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ34Z100PWR-G1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ34Z100PWR-G1","canonicalUrl":"https://icboms.com/texas-instruments/BQ34Z100PWR-G1","factsUrl":"https://icboms.com/api/mcp/products/BQ34Z100PWR-G1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ34Z100PWR-G1, Impedance Track™ series, Battery Monitor, Multi-Chemistry, HDQ/I²C interface, Surface Mount, 14-TSSOP (0.173\", 4.40mm Width), -40°C ~ 85°C.","salesMarkdown":"The Texas Instruments BQ34Z100PWR-G1 is a battery monitor IC from the Impedance Track™ series, designed for multi-chemistry fuel gauging across Li-ion, LiFePO4, lead-acid, and other chemistries. It communicates over HDQ or I²C, making it adaptable to most battery management system (BMS) host controllers. ## Multi-Chemistry fuel gauging — one BOM for several battery types The multi-chemistry capability means this gauge can be programmed for different cell types without a hardware change. For a buyer managing a family of products that use Li-ion packs in one SKU and lead-acid in another, the same BQ34Z100PWR-G1 footprint covers both — just a firmware configuration difference. That simplifies qualification and inventory. ## HDQ and I²C — two-wire flexibility for the BMS bus Supporting both HDQ and I²C on the same pins means the gauge can drop into designs already committed to either protocol. For a repair or retrofit scenario, this dual-protocol support is often the deciding factor over a single-interface gauge. For a procurement team qualifying a new BMS line, this is the cleanest sourcing posture available. ## Package and assembly — standard 14-TSSOP Housed in a 14-TSSOP (0.173\", 4.40 mm width) surface-mount package, this gauge uses a common footprint that is easy to route on a two-layer battery-pack PCB. No thermal pad or exposed paddle — standard reflow profiles apply. The Tape & Reel and Cut Tape options cover both prototyping and volume assembly.","metaTitle":"BQ34Z100PWR-G1 Battery Monitor, Impedance Track, Multi-Chem","metaDescription":"Active TI battery monitor with Impedance Track™, multi-chemistry support, HDQ/I²C interface, -40°C to 85°C range, 14-TSSOP package.","metaKeywords":null},"attributes":{"series":"Impedance Track™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"Impedance Track™","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Battery Monitor","Interface":"HDQ, I²C","Mounting Type":"Surface Mount","Package / Case":"14-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Battery Chemistry":"Multi-Chemistry","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"14-TSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.81","priceTiers":[{"qty":1,"price":"$4.81000","currency":"USD"},{"qty":10,"price":"$4.31700","currency":"USD"},{"qty":25,"price":"$4.08080","currency":"USD"},{"qty":100,"price":"$3.53660","currency":"USD"},{"qty":250,"price":"$3.35528","currency":"USD"},{"qty":500,"price":"$3.01068","currency":"USD"},{"qty":1000,"price":"$2.56650","currency":"USD"},{"qty":2000,"price":"$2.56650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/630bae705a238ab20dcb24e6b9b25859.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ34Z100PWR-G1/alternatives.json"},"ai":{"faq":[{"question":"Is BQ34Z100PWR-G1 obsolete or nearing end-of-life?","answer":"No — the BQ34Z100PWR-G1 has an Active lifecycle status per the manufacturer's record. There is no last-time-buy notice or end-of-life announcement. It remains a current-production part suitable for new designs."},{"question":"Does BQ34Z100PWR-G1 support both HDQ and I2C interfaces?","answer":"Yes, the BQ34Z100PWR-G1 supports both HDQ and I²C interfaces, giving flexibility to connect with a variety of host controllers without a protocol translator."},{"question":"When sourcing BQ34Z100PWR-G1, what's the closest functional second-source — BQ79612PAPRQ1?","answer":"The BQ79612PAPRQ1 is a different device class — it is an automotive-grade (AEC-Q100) battery monitor with SPI/UART interface and over-temperature fault protection, designed for Li-ion only. It is not a pin-compatible second source for the BQ34Z100PWR-G1. For a multi-chemistry, HDQ/I²C gauge, the BQ34Z100PWR-G1 is the correct choice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ34Z100PWR-G1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ34Z100PWR-G1 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}}