BQ20Z40-R1 Series
SBS 1.1 compliant Gas Gauge with Impedance Track™ Technology
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
SBS 1.1 compliant Gas Gauge with Impedance Track™ Technology
| Part | Package / Case | Package / Case | Package / Case | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] | Function | Mounting Type | Battery Chemistry | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Fault Protection |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ20Z40PW-R1 | 0.173 in | 4.4 mm | 20-TSSOP | 4 | 2 | Battery Monitor | Surface Mount | Lithium Ion/Polymer | 85 °C | -40 °C | 20-TSSOP | Over Current, Over Temperature, Over/Under Voltage, Short Circuit |
Key Features
• Next Generation Patented Impedance Track™ Technology AccuratelyMeasures Available Charge in Li-Ion and Li-Polymer BatteriesBetter Than 1% Error Over the Lifetime of the BatterySupports the Smart Battery Specification SBS V1.1Flexible Configuration for 2-Series, 3-Series, and 4-SeriesCell Li-Ion and Li-Polymer BatteriesPowerful 8-Bit RISC CPU With Ultralow Power ModesFull Array of Programmable Protection FeaturesVoltage, Current, and TemperatureComplies with JEITA GuidelinesAdded Flexibility to Handle More Complex Charging ProfilesLifetime Data LoggingSupports SHA-1 AuthenticationAvailable in 20-Pin TSSOP (PW) and 32-Pin QFN (RSM) PackagesAPPLICATIONSNotebook PCsMedical and Test EquipmentPortable InstrumentationImpedance Track is a trademark of Texas Instruments.Next Generation Patented Impedance Track™ Technology AccuratelyMeasures Available Charge in Li-Ion and Li-Polymer BatteriesBetter Than 1% Error Over the Lifetime of the BatterySupports the Smart Battery Specification SBS V1.1Flexible Configuration for 2-Series, 3-Series, and 4-SeriesCell Li-Ion and Li-Polymer BatteriesPowerful 8-Bit RISC CPU With Ultralow Power ModesFull Array of Programmable Protection FeaturesVoltage, Current, and TemperatureComplies with JEITA GuidelinesAdded Flexibility to Handle More Complex Charging ProfilesLifetime Data LoggingSupports SHA-1 AuthenticationAvailable in 20-Pin TSSOP (PW) and 32-Pin QFN (RSM) PackagesAPPLICATIONSNotebook PCsMedical and Test EquipmentPortable InstrumentationImpedance Track is a trademark of Texas Instruments.
Description
AI
The bq20z40-R1 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z40-R1 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using its integrated high-performance analog peripherals. Thebq20z40-R1 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack, and reports the information to the system host controller over a serial-communication bus. It is designed to work with the bq29330 analog front-end (AFE) protection IC to maximize functionality and safety, while minimizing external component count and cost in smart battery circuits.
The Impedance Track™ technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables the remaining capacity to be calculated with discharge rate, temperature, and cell aging, which are all accounted for during each stage of every cycle.
The bq20z40-R1 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z40-R1 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using its integrated high-performance analog peripherals. Thebq20z40-R1 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack, and reports the information to the system host controller over a serial-communication bus. It is designed to work with the bq29330 analog front-end (AFE) protection IC to maximize functionality and safety, while minimizing external component count and cost in smart battery circuits.
The Impedance Track™ technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables the remaining capacity to be calculated with discharge rate, temperature, and cell aging, which are all accounted for during each stage of every cycle.