{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3658SD-B/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3658SD-B-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3658SD-B-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3658SD-B%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3658SD-B/NOPB battery charger IC, single-cell Li-Ion/Polymer, USB interface, 1A max charge current, 10-WFDFN Exposed Pad package, Surface Mount, Tape & Reel.","salesMarkdown":"## Single-cell Li-Ion charger with USB input The Texas Instruments LM3658SD-B/NOPB is a single-cell lithium-ion/polymer battery charger IC designed for USB-powered applications. It charges one cell to the standard 4.2V termination voltage with a programmable constant-current charge rate up to 1A. The USB interface means the part integrates the logic and power path for a USB VBUS input, handling enumeration or current-limit negotiation without an external controller. The 6V maximum supply voltage covers USB 2.0 (5V nominal) with margin for cable drop. ## Thermal and layout: 10-WSON exposed pad The 10-WSON package (3x3 mm, supplier device package 10-WSON) with an exposed pad requires a thermal land on the PCB to dissipate heat from the pass element during constant-current charging. Surface-mount assembly with the exposed pad means the reflow profile must wet the centre pad — a voided solder joint under the pad raises junction temperature and triggers the over-temperature protection earlier than expected. ## Protection set and charge termination Built-in fault protection covers over-current and over-temperature conditions. The over-current limit is tied to the programmed charge current; the thermal regulation loop reduces charge current if the die temperature exceeds the threshold, preventing thermal runaway without a hard shutdown. Charge termination is based on the constant-current / constant-voltage (CC/CV) profile typical of Li-ion chargers. The 4.2V regulation voltage is fixed; the charge current drops as the cell approaches full charge, and the IC terminates when the current falls below the end-of-charge threshold. The moisture sensitivity level (MSL) for the 10-WSON package is typically MSL-1 or MSL-3 — store the reels in a dry cabinet or bake before reflow if the moisture barrier bag is punctured.","metaTitle":"Texas Instruments LM3658SD-B/NOPB USB Li-Ion Charger IC, 1A","metaDescription":"Texas Instruments LM3658SD-B/NOPB single-cell Li-Ion/Polymer battery charger IC with USB interface. 1A max charge current, 10-WSON package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"USB","Mounting Type":"Surface Mount","Package / Case":"10-WFDFN Exposed Pad","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Temperature","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Battery Pack Voltage":"4.2V","Charge Current - Max":"1A","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Supply (Max)":"6V","Supplier Device Package":"10-WSON (3x3)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.73","priceTiers":[{"qty":1,"price":"$1.73000","currency":"USD"},{"qty":10,"price":"$1.55100","currency":"USD"},{"qty":25,"price":"$1.46280","currency":"USD"},{"qty":100,"price":"$1.24630","currency":"USD"},{"qty":250,"price":"$1.17024","currency":"USD"},{"qty":500,"price":"$1.02396","currency":"USD"},{"qty":1000,"price":"$0.84842","currency":"USD"},{"qty":2000,"price":"$0.82800","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/77bf6c103a44ae86d690a2e419264e60.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3658SD-B%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum charge current for LM3658SD-B/NOPB?","answer":"The maximum charge current is 1A, programmable via an external resistor. The charge current is constant-current programmable, so the actual rate is set by the resistor value between the ISET pin and ground."},{"question":"What package does LM3658SD-B/NOPB come in?","answer":"The LM3658SD-B/NOPB is offered in a 10-WFDFN exposed pad package (supplier device package 10-WSON, 3x3 mm)."},{"question":"What battery chemistry does LM3658SD-B/NOPB support?","answer":"The LM3658SD-B/NOPB is designed for single-cell lithium-ion and lithium-polymer batteries. It charges to a fixed 4.2V termination voltage with a CC/CV profile."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3658SD-B-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3658SD-B-NOPB 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}}