BQ27Z561-R1 Overview
The Texas Instruments BQ27Z561-R1 Impedance Track™ gas gauge solution is a highly integrated, accurate 1-series cell gas gauge with a flash programmable custom reduced instruction-set CPU (RISC) and SHA-256 authentication for li-ion and lipolymer battery packs. The 1-series cell capability includes parallel cells for increased capacity. The BQ27Z561-R1 gas gauge municates via I2Cpatible and HDQ one-wire interfaces...
BQ27Z561-R1 Key Features
- Supports high-side and low-side current sense resistors down to 1 mΩ
- Supports pack-side gauging including enhanced state of health (SOH) algorithm
- Fast QMAX update option based on predicted OCV
- SHA-256 authentication responder for increased battery pack security
- Sophisticated charge algorithms
- Enhanced charging
- RSOC() charging pensation option
- Two independent ADCs
- Support for simultaneous current and voltage sampling
- High-accuracy coulomb counter with input offset error < 1 µV (typical)