{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24032ARHLTG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24032ARHLTG4","canonicalUrl":"https://icboms.com/texas-instruments/BQ24032ARHLTG4","factsUrl":"https://icboms.com/api/mcp/products/BQ24032ARHLTG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments bqTINY™ III series, BQ24032ARHLTG4, Li-Ion/Polymer battery charger IC, 1.5 A max charge current, USB interface, 4.2 V battery pack voltage, 16 V max supply, -40°C to 125°C, 20-VFQFN Exposed Pad package.","salesMarkdown":"## 1.5 A Li-Ion charger with integrated power FETs The Texas Instruments BQ24032ARHLTG4 is a linear Li-Ion/Polymer charger IC from the bqTINY III series, designed for single-cell battery packs with a 4.2 V termination voltage. It integrates the pass transistor and current-sense resistor, so no external MOSFET or sense resistor is needed — the BOM stays tight for space-constrained portable designs like handheld instruments, medical monitors, or IoT edge nodes. ## Charge current and thermal budget The charge current is constant-current programmable up to 1.5 A max. A 5 V USB input charging at 1.5 A into a 3.7 V cell dissipates roughly 2 W; the PCB copper area is the heatsink. ## Input voltage and fault protection The supply input handles up to 16 V, so the part can run from a 5 V USB port or a 12 V wall adapter without a front-end regulator. On-chip fault protection covers over-temperature, reverse current (blocking a charged battery from back-driving the input), and short-circuit on the output. The programmable timer and current set point are set with external resistors — no I²C bus needed.","metaTitle":"BQ24032ARHLTG4 Li-Ion Charger IC, 1.5 A, USB","metaDescription":"Texas Instruments BQ24032ARHLTG4 Li-Ion/Polymer charger IC. 1.5 A max charge current, USB interface, 16 V input, -40°C to 125°C. 20-VQFN package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"bqTINY™ III","Package":"Tape & Reel (TR)","Interface":"USB","Mounting Type":"Surface Mount","Package / Case":"20-VFQFN Exposed Pad","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Reverse Current, Short Circuit","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24032","Battery Pack Voltage":"4.2V","Charge Current - Max":"1.5A","Operating Temperature":"-40°C~125°C(TJ)","Programmable Features":"Current, Timer","Voltage - Supply (Max)":"16V","Supplier Device Package":"20-VQFN (3.5x4.5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.6926","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ac9036052305c74527f033a709990eb1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum charge current of BQ24032ARHLTG4?","answer":"The maximum charge current is 1.5 A, constant-current programmable via an external resistor."},{"question":"Does BQ24032ARHLTG4 require external MOSFETs?","answer":"No. The bqTINY III architecture integrates the power pass transistor and current-sense resistor. No external MOSFET or sense resistor is needed for the charging path."},{"question":"What is the difference between BQ24032A and BQ24032ARHLTG4?","answer":"The base product number BQ24032 covers the charger core. The full suffix RHLTG4 specifies the 20-VQFN (3.5x4.5) supplier package and tape-and-reel delivery. The A in BQ24032A indicates a specific silicon revision; the RHLTG4 variant is the surface-mount, reel-packaged version of that revision."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24032ARHLTG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24032ARHLTG4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}