{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ24020DRCRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ24020DRCRG4","canonicalUrl":"https://icboms.com/texas-instruments/BQ24020DRCRG4","factsUrl":"https://icboms.com/api/mcp/products/BQ24020DRCRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments bqTINY™-II series, BQ24020DRCRG4 — single-cell Li-Ion/Polymer linear charger IC, USB interface, programmable charge current up to 500 mA, over-temperature protection, 10-VFDFN Exposed Pad (10-VSON 3x3 mm), -40°C to 125°C junction range.","salesMarkdown":"## Single-cell Li-Ion USB charger — 500 mA ceiling, 10-VSON The BQ24020DRCRG4 is a linear charger for single-cell Lithium Ion or Lithium Polymer packs, drawing power from a USB port. The charge current is programmable up to 500 mA, which means a typical 1000 mAh cell charges in about two hours — enough for compact handhelds where the 10-VSON (3x3 mm) footprint saves board area. Supply voltage maxes at 6.5 V, so the part tolerates the 5 V USB bus with margin for hot-plug transients. The charge termination voltage is fixed at 4.2 V — standard for Li-Ion cells. Over-temperature fault protection shuts down the pass element if the die exceeds the safe limit, which is a practical safeguard when the charger sits near a processor or radio. ## Programmable current and timer — no I²C needed Charge current and safety timer are set with external resistors, not a digital bus — the BQ24020DRCRG4 operates standalone. That simplifies the BOM for designs where a microcontroller is already present but not dedicated to charger management. The constant-current/constant-voltage profile is automatic; the part transitions to 4.2 V regulation once the cell reaches the voltage threshold. The junction temperature range spans -40°C to 125°C, which covers outdoor and under-hood environments. ## Active production — sourcing through distribution The part is available through franchised distribution; we source and quote to order against your BOM line — confirm the quantity and target lead time with an RFQ. No official second-source or pin-compatible alternative is listed in the bqTINY-II family, so the BOM position is single-sourced to TI.","metaTitle":"BQ24020DRCRG4 — Texas Instruments bqTINY-II Li-Ion Charger","metaDescription":"BQ24020DRCRG4 from TI: single-cell Li-Ion/Polymer USB charger, 500 mA max, -40°C to 125°C, 10-VSON. Active production — RFQ for current pricing and lead time.","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":"BQ24020","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":"$2.1600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/675c51f48f898e813e2537c7b97306cf.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order BQ24020DRCRG4 or check stock?","answer":"Submit an RFQ with your target quantity. We confirm current availability and lead time from franchised distribution at quote time — no stock-holding claim, no automated price. Active lifecycle means no LTB risk."},{"question":"What is the difference between BQ24020DRCRG4 and BQ24020DRCR?","answer":"The suffix DRCRG4 indicates the 10-VSON package variant with tape-and-reel packaging. The DRCR suffix may refer to an earlier package code or a different reel configuration. Confirm the exact package marking on your BOM before substituting."},{"question":"Does BQ24020DRCRG4 support USB charging with a microcontroller?","answer":"Yes — the USB interface accepts 5 V from the bus. The charger operates standalone; a microcontroller can monitor charge status via the open-drain output but is not required for the charge cycle. The programmable current and timer are set with resistors, not I²C."},{"question":"Is BQ24020DRCRG4 compatible with LiFePO4 batteries?","answer":"No. The battery chemistry is Lithium Ion/Polymer, and the termination voltage is fixed at 4.2 V. LiFePO4 cells require a lower float voltage (typically 3.6 V) — this charger does not support that chemistry."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ24020DRCRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ24020DRCRG4 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}}