{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ25157YFPR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ25157YFPR","canonicalUrl":"https://icboms.com/texas-instruments/BQ25157YFPR","factsUrl":"https://icboms.com/api/mcp/products/BQ25157YFPR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ25157YFPR, single-cell Li-ion linear charger IC, I²C programmable charge current/timer/voltage, 1.5 A max charge current, 20-pin DSBGA package, -40°C to 85°C.","salesMarkdown":"## What this linear charger brings to a single-cell Li-ion design The BQ25157YFPR is a single-cell Li-ion linear charger from Texas Instruments, with a maximum charge current of 1.5 A. That 1.5 A ceiling is the thermal anchor for the BOM — linear charging means the pass element drops the full differential between input and battery voltage, so at 1.5 A the package dissipation can hit 2–3 W if the input is 5 V and the battery is at 3.7 V. The charger is controlled via an I²C interface, which lets the system microcontroller program the charge current, charge voltage, and safety timer on the fly. This is useful for designs that need to adjust the charge profile based on battery temperature or state of charge without changing resistors. ## Parametric deep-dive: protection, temperature, and supply Built-in fault protection covers over-current, over-voltage, and short-circuit conditions. That means the BOM can skip an external current-sense resistor and a separate OVP IC in many cases, saving board space and cost. Maximum supply voltage is 6.05 V, and the battery regulation voltage is programmable from 2.4 V to 4.6 V. The 6.05 V input ceiling means a standard 5 V USB supply is fine, but a 5% tolerance supply that peaks at 5.25 V is still safe; a 12 V rail would need a pre-regulator. ## Package and reflow: what the DSBGA demands on the line The BQ25157YFPR comes in a 20-pin DSBGA package, with the supplier device package designation 20-DSBGA. This is a wafer-level chip-scale package — the solder balls are the terminals, and the package outline is barely larger than the die. Reflow profile must follow the JEDEC standard for the ball alloy; the MSL level should be verified from the TI datasheet before the reel hits the line. A stencil aperture reduction (10–15% area) on the inner balls helps prevent bridging under the die shadow. The 20-XFBGA case code means the balls are on a 0.4 mm or 0.5 mm pitch — confirm the pad geometry against the TI recommended land pattern before the PCB order. Texas Instruments has not announced an end-of-life or a successor for this order code.","metaTitle":"BQ25157YFPR Linear Charger IC – 1.5 A, I²C, 20-DSBGA","metaDescription":"Texas Instruments BQ25157YFPR single-cell Li-ion linear charger with I²C programmability, 1.5 A max charge current, fault protection, -40°C to 85°C, 20-DSBGA.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C","Mounting Type":"Surface Mount","Package / Case":"20-XFBGA, DSBGA","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Current, Over Voltage, Short Circuit","Battery Chemistry":"Lithium Ion","Current - Charging":"Constant - Programmable","Base Product Number":"BQ25157","Battery Pack Voltage":"2.4V ~ 4.6V","Charge Current - Max":"1.5A","Operating Temperature":"-40°C~85°C(TA)","Programmable Features":"Current, Timer, Voltage","Voltage - Supply (Max)":"6.05V","Supplier Device Package":"20-DSBGA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.1200","priceTiers":[{"qty":1,"price":"$3.12000","currency":"USD"},{"qty":10,"price":"$2.80000","currency":"USD"},{"qty":25,"price":"$2.64720","currency":"USD"},{"qty":100,"price":"$2.29440","currency":"USD"},{"qty":250,"price":"$2.17672","currency":"USD"},{"qty":500,"price":"$1.95316","currency":"USD"},{"qty":1000,"price":"$1.66500","currency":"USD"},{"qty":3000,"price":"$1.66500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8cdb2877530e7e764b53c6eee609fbd3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ25157YFPR/alternatives.json"},"ai":{"faq":[{"question":"Does the BQ25157YFPR support I²C for charge current programming?","answer":"Yes, the BQ25157YFPR uses an I²C interface to program the charge current, charge voltage, and safety timer. The host microcontroller writes to the internal registers to set these parameters — no external resistor is needed for current programming."},{"question":"What is the maximum charge current of the BQ25157YFPR?","answer":"The maximum charge current is 1.5 A. Because this is a linear charger, the actual current in a given design is limited by the thermal capability of the 20-DSBGA package and the PCB copper area; at high input-to-battery differentials, the current may need to be reduced to stay within the junction temperature limit."},{"question":"Is the BQ25157YFPR compatible with 2-cell batteries?","answer":"No, the BQ25157YFPR is a single-cell charger. The battery pack voltage range is 2.4 V to 4.6 V, which covers standard single-cell Li-ion (4.2 V) and LiFePO4 (3.6 V) chemistries, but not 2-cell stacks."},{"question":"What package does the BQ25157YFPR come in?","answer":"It is supplied in a 20-pin DSBGA (wafer-level chip-scale) package, specifically the 20-DSBGA supplier device package. The part is available on Tape & Reel or Cut Tape."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ25157YFPR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ25157YFPR 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}}