Packaging information
| Package | Pins DSBGA (YPH) | 12 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the BQ27Z561-R1
- 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:
- JEITA
- Enhanced charging
- RSOC charging compensation option
- Two independent ADCs
- Support for simultaneous current and voltage sampling
- High-accuracy coulomb counter with input offset error < 1 µV (typical)
- Low-voltage (2-V) operation
- Wide-range current applications (1 mA to > 5 A)
- Active high or low pulse or level interrupt pin
- Supports battery trip point (BTP)
- Reduced power modes (typical battery pack operating range conditions)
- Typical SLEEP mode: < 11 µA
- Typical DEEP SLEEP mode: < 9 µA
- Typical OFF mode: < 1.9 µA
- Internal and external temperature sense functions
- Diagnostic lifetime data monitor and black box recorder
- 400-kHz I2C bus communications interface for high-speed programming and data access
- HDQ one-wire for communication with host
- Compact 12-pin DSBGA package (YPH)
Description for the BQ27Z561-R1
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 li-polymer battery packs. The 1-series cell capability includes parallel cells for increased capacity.
The BQ27Z561-R1 gas gauge communicates via I2C-compatible and HDQ one-wire interfaces and includes several key features that can help facilitate accurate gas gauging applications. Integrated temperature sense functions (internal and external options) enable system and battery temperature measurements.