{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISL88739HRZ","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"ISL88739HRZ","canonicalUrl":"https://icboms.com/renesas/ISL88739HRZ","factsUrl":"https://icboms.com/api/mcp/products/ISL88739HRZ","rawCanonicalId":null},"summary":{"shortDescription":"Renesas Electronics ISL88739HRZ Li-Ion battery charger IC, 2-4 cells, SMBus interface, 22V max supply, 32-QFN (4x4), Tube.","salesMarkdown":"## Li-Ion charger with SMBus control The ISL88739HRZ is a lithium-ion/polymer battery charger IC from Renesas that handles 2 to 4 series cells, making it a fit for multi-cell packs in portable equipment, power tools, or backup systems. It communicates over an SMBus interface, which means charge parameters (current, voltage, termination) are set digitally by a host controller rather than fixed resistors — useful when the same board must support different pack chemistries or capacities. ## 22V max supply, overcurrent protection The maximum supply voltage is 22 V, so the input rail must stay below that — typical 2-4 cell Li-Ion packs charge at 8.4 V to 16.8 V, leaving headroom for a 19 V adapter or USB-C PD input without an external pre-regulator. Built-in overcurrent fault protection guards the battery and the charging FETs against a shorted output or a failed pass element — the IC latches off rather than letting the current run away. ## 32-QFN package, hand-solderable Supplied in tube packaging, so it arrives in a rigid carrier that protects the leads during shipping and is easy to feed into a pick-and-place feeder or a manual assembly tray.","metaTitle":"ISL88739HRZ Renesas Li-Ion Battery Charger, 2-4 Cells, 22V","metaDescription":"ISL88739HRZ Li-Ion battery charger IC, 2-4 cells, 22V max supply, SMBus interface, 32-QFN. Active production, RoHS3 compliant. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Package":"Tube","Interface":"SMBus","Mounting Type":"Surface Mount","Package / Case":"32-VFQFN Exposed Pad","Number of Cells":"2 ~ 4","lifecycle_stage":"eol_hot","Fault Protection":"Over Current","Battery Chemistry":"Lithium Ion/Polymer","Voltage - Supply (Max)":"22V","Supplier Device Package":"32-QFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.66","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.66000","currency":"USD"},{"qty":10,"price":"$5.97900","currency":"USD"},{"qty":25,"price":"$5.65240","currency":"USD"},{"qty":100,"price":"$4.89880","currency":"USD"},{"qty":250,"price":"$4.64756","currency":"USD"},{"qty":500,"price":"$4.17026","currency":"USD"},{"qty":1000,"price":"$3.95790","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/74228d41bcda59c53466cfcdd0869726.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What interface does the ISL88739HRZ use to communicate with the host?","answer":"It uses an SMBus interface, which allows a host microcontroller to set charge current, voltage, and termination thresholds digitally — no external resistor dividers needed for configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/ISL88739HRZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/ISL88739HRZ 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}}