BQ27Z561-R1 Texas Instruments Integrated Circuit (BGA) In Stock
The BQ27Z561-R1 is a single-cell Li-ion battery gas gauge IC from Texas Instruments using Impedance Track technology. It accurately measures remaining capacity, state of charge, and state of health in a compact BGA package for portable devices. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- BGA
- Pin Count
- 12
- Lifecycle
- ACTIVE
- Datasheet
- BQ27Z561-R1 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of BQ27Z561-R1?
- Texas Instruments Impedance Track algorithm provides highly accurate remaining capacity estimation across varying load conditions and battery age
- Integrated voltage, current, and temperature measurement with I2C/HDQ communication interface for host system battery state reporting
- Compact BGA package optimized for space-constrained 1-series cell Li-ion battery packs in wearables and portable electronics
What is BQ27Z561-R1 used for?
The BQ27Z561-R1 is ideal for portable consumer electronics such as smartphones, tablets, wearables, and wireless earbuds requiring precise battery state-of-charge monitoring. Its Impedance Track algorithm enables accurate fuel gauging across the full lifecycle of the battery, improving user experience and battery longevity in single-cell Li-ion applications.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the BQ27Z561-R1 datasheet?
BQ27Z561-R1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for BQ27Z561-R1?
Compatible alternatives and drop-in replacements for BQ27Z561-R1:
Frequently Asked Questions
What battery chemistry does the BQ27Z561-R1 support?
The BQ27Z561-R1 is designed for 1-series cell Li-ion and Li-polymer battery packs. It uses Texas Instruments' Impedance Track algorithm to accurately estimate state of charge and remaining capacity for single-cell lithium-based battery chemistries across various temperatures and aging conditions.
What is the Impedance Track technology in the BQ27Z561-R1?
Impedance Track is Texas Instruments' patented algorithm that models battery impedance in real time to provide highly accurate remaining capacity and state-of-health estimates. Unlike coulomb counting alone, it accounts for battery aging and temperature effects, delivering more precise fuel gauge readings throughout the battery lifetime.
What communication interface does the BQ27Z561-R1 use?
The BQ27Z561-R1 supports both I2C and HDQ (1-wire) communication interfaces for connecting to a host processor or system management controller. These interfaces allow the host to read battery status parameters including state of charge, voltage, current, temperature, and remaining capacity.
What package does the BQ27Z561-R1 come in and what applications is it suited for?
The BQ27Z561-R1 is housed in a compact BGA (Ball Grid Array) package, which minimizes board space consumption. This makes it ideal for space-constrained portable devices such as smartphones, wireless earbuds, smartwatches, and other wearable electronics using single-cell Li-ion batteries.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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