BQ27Z558 Series
Single-cell Impedance Track™ technology gas gauge with 1.2V IO support
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Single-cell Impedance Track™ technology gas gauge with 1.2V IO support
| Part | Battery Chemistry | Mounting Type | Supplier Device Package | Supplier Device Package [x] | Supplier Device Package [y] | Function | Number of Cells | Operating Temperature [Max] | Operating Temperature [Min] | Interface | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ27Z558YPHR | Lithium Ion/Polymer | Surface Mount | 12-DSBGA | 1.68 | 2.05 | Battery Authentication | 1 | 85 °C | -40 °C | 1-Wire, I2C | 12-XFBGA, DSBGA |
Key Features
• Supports high-side and low-side current sense resistors down to 1 mΩSupports pack-side gauging including enhanced state of health (SOH) algorithmFast QMax update option based on predicted OCVSHA-256 authentication responder for increased battery pack securitySophisticated charge algorithmsJEITAEnhanced chargingRSOC charging compensation optionTwo independent ADCsSupport for simultaneous current and voltage samplingHigh-accuracy coulomb counter with input offset error < 1 µV (typical)Low-voltage (2-V) operationWide-range current applications (1 mA to > 5 A)Active high or low pulse or level interrupt pinSupports battery trip point (BTP)Reduced power modes (typical battery pack operating range conditions)Typical SLEEP mode: < 11 µATypical DEEP SLEEP mode: < 9 µATypical HIBERNATE mode: < 3 µATypical OFF mode: < 1.9 µAInternal and external temperature sense functionsDiagnostic lifetime data monitor and black box recorder400-kHz I 2C bus communications interface, including a 1.2-V logic level for high-speed programming and data accessHDQ one-wire for communication with hostCompact 12-pin DSBGA package (YPH)Supports high-side and low-side current sense resistors down to 1 mΩSupports pack-side gauging including enhanced state of health (SOH) algorithmFast QMax update option based on predicted OCVSHA-256 authentication responder for increased battery pack securitySophisticated charge algorithmsJEITAEnhanced chargingRSOC charging compensation optionTwo independent ADCsSupport for simultaneous current and voltage samplingHigh-accuracy coulomb counter with input offset error < 1 µV (typical)Low-voltage (2-V) operationWide-range current applications (1 mA to > 5 A)Active high or low pulse or level interrupt pinSupports battery trip point (BTP)Reduced power modes (typical battery pack operating range conditions)Typical SLEEP mode: < 11 µATypical DEEP SLEEP mode: < 9 µATypical HIBERNATE mode: < 3 µATypical OFF mode: < 1.9 µAInternal and external temperature sense functionsDiagnostic lifetime data monitor and black box recorder400-kHz I 2C bus communications interface, including a 1.2-V logic level for high-speed programming and data accessHDQ one-wire for communication with hostCompact 12-pin DSBGA package (YPH)
Description
AI
The Texas Instruments BQ27Z558 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 BQ27Z558 gas gauge communicates through I 2C-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.
The Texas Instruments BQ27Z558 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 BQ27Z558 gas gauge communicates through I 2C-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.