BQ20Z40 Series
SBS Compliant Gas Gauge with Impedance Track Technology for use with BQ29330
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
SBS Compliant Gas Gauge with Impedance Track Technology for use with BQ29330
| Part | Fault Protection | Operating Temperature [Max] | Operating Temperature [Min] | Battery Chemistry | Package / Case | Package / Case | Package / Case | Mounting Type | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] | Supplier Device Package | Function |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ20Z40PW | Over Current, Over Temperature, Over/Under Voltage, Short Circuit | 85 °C | -40 °C | Lithium Ion/Polymer | 0.173 in | 4.4 mm | 20-TSSOP | Surface Mount | 4 | 2 | 20-TSSOP | Battery Monitor |
Texas Instruments BQ20Z40PW-R1 | Over Current, Over Temperature, Over/Under Voltage, Short Circuit | 85 °C | -40 °C | Lithium Ion/Polymer | 0.173 in | 4.4 mm | 20-TSSOP | Surface Mount | 4 | 2 | 20-TSSOP | Battery Monitor |
Texas Instruments BQ20Z40PWR | Over Current, Over Temperature, Over/Under Voltage, Short Circuit | 85 °C | -40 °C | Lithium Ion/Polymer | 0.173 in | 4.4 mm | 20-TSSOP | Surface Mount | 4 | 2 | 20-TSSOP | Battery Monitor |
Key Features
• Next Generation Patented Impedance Track Technology Accurately Measures 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 to 4 Series Li-Ion and Li-Polymer CellsPowerful 8-Bit RISC CPU With Ultralow Power ModesFull Array of Programmable Protection FeaturesVoltage, Current, and TemperatureSatisfies JEITA GuidelinesAdded Flexibility to Handle More Complex Charging ProfilesLifetime Data LoggingSupports SHA-1 AuthenticationAvailable in a 20-Pin TSSOP (PW) packageAPPLICATIONSNotebook PCsMedical and Test EquipmentPortable InstrumentationImpedance Track is a trademark of Texas Instruments.Next Generation Patented Impedance Track Technology Accurately Measures 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 to 4 Series Li-Ion and Li-Polymer CellsPowerful 8-Bit RISC CPU With Ultralow Power ModesFull Array of Programmable Protection FeaturesVoltage, Current, and TemperatureSatisfies JEITA GuidelinesAdded Flexibility to Handle More Complex Charging ProfilesLifetime Data LoggingSupports SHA-1 AuthenticationAvailable in a 20-Pin TSSOP (PW) packageAPPLICATIONSNotebook PCsMedical and Test EquipmentPortable InstrumentationImpedance Track is a trademark of Texas Instruments.
Description
AI
The bq20z40 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z40 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The bq20z40 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 maximizes 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 that are all accounted for during each stage of every cycle.
The bq20z40 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z40 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The bq20z40 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 maximizes 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 that are all accounted for during each stage of every cycle.