{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24022DRCRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24022DRCRG4","canonicalUrl":"https://icboms.com/texas-instruments/BQ24022DRCRG4","factsUrl":"https://icboms.com/api/mcp/products/BQ24022DRCRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments bqTINY™-II series, BQ24022DRCRG4, single-cell Li-Ion/Polymer linear charger IC, USB interface, 500 mA max charge current, programmable current and timer, 10-VFDFN exposed pad package.","salesMarkdown":"## Single-cell Li-Ion charger with USB interface The Texas Instruments BQ24022DRCRG4 is a linear charge management IC from the bqTINY™-II series, designed for single-cell Lithium-Ion or Lithium-Polymer battery packs. It integrates a power FET and current sensor in a 10-VFDFN exposed-pad package (3x3 mm VSON), making it a compact fit for portable devices where board area is tight. The charge current is constant and programmable up to 500 mA maximum, with a programmable timer for charge termination. Input power comes through a USB interface, and the IC includes over-temperature fault protection. The 500 mA max charge current sets the charge rate for a single 4.2 V Li-Ion or Li-Po cell. For a typical 1000 mAh cell, this gives a 0.5 C charge rate — a safe balance between charge time and cell longevity. The constant-current phase is programmable via an external resistor, so the designer sets the rate per the cell manufacturer's recommendation, not a fixed internal value. The 6.5 V maximum supply voltage accommodates USB bus power (5 V nominal) with margin for cable drop and transient overshoot. The linear topology means the pass element dissipates (Vin - Vbatt) × Icharge as heat; at 5 V input charging a 3.7 V cell at 500 mA, the package dissipates about 650 mW.","metaTitle":"BQ24022DRCRG4 Li-Ion Charger IC, 500 mA, bqTINY-II","metaDescription":"Texas Instruments BQ24022DRCRG4 single-cell Li-Ion/Polymer charger IC. 500 mA max charge current, USB interface, -40°C to 125°C range.","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™-II","Package":"Tape & Reel (TR)","Interface":"USB","Mounting Type":"Surface Mount","Package / Case":"10-VFDFN Exposed Pad","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ24022","Battery Pack Voltage":"4.2V","Charge Current - Max":"500mA","Operating Temperature":"-40°C~125°C(TJ)","Programmable Features":"Current, Timer","Voltage - Supply (Max)":"6.5V","Supplier Device Package":"10-VSON (3x3)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$50.4500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/675c51f48f898e813e2537c7b97306cf.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between BQ24022DRCRG4 and BQ24021?","answer":"The BQ24021 is a sibling in the bqTINY-II family with the same single-cell Li-Ion charger function and 500 mA max charge current. The key difference is the programmable features set — the BQ24022 adds a programmable timer for charge termination, while the BQ24021 uses a fixed timer. Both share the same 10-VSON package and pinout, making them drop-in alternatives depending on whether you need the timer programmability."},{"question":"Can BQ24022DRCRG4 charge two cells?","answer":"No. The BQ24022DRCRG4 is designed for single-cell (1S) Li-Ion or Li-Polymer battery packs only, with a regulated battery pack voltage of 4.2 V. It cannot charge two cells in series."},{"question":"How do I set the charge current on BQ24022DRCRG4?","answer":"The charge current is constant and programmable via an external resistor connected to the ISET pin. The maximum programmable current is 500 mA. The datasheet provides the resistor value formula for the target charge rate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24022DRCRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24022DRCRG4 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}}