BQ20Z45-R1
SBS 1.1 compliant Gas Gauge with Impedance Track™ Technology
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
Product details
Parameters
We are not able to display this information. Please refer to the product data sheet.Features
- Next Generation Patented Impedance Track Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries
- Better Than 1% Error Over the Lifetime of the Battery
- Supports the Smart Battery Specification SBS V1.1
- Flexible Configuration for 2 to 4 Series Li-Ion and Li-Polymer Cells
- Powerful 8-Bit RISC CPU With Ultralow Power Modes
- Full Array of Programmable Protection Features
- Voltage, Current, and Temperature
- Satisfies JEITA Guidelines
- Added Flexibility to Handle More Complex Charging Profiles
- Lifetime Data Logging
- Supports SHA-1 Authentication
- Complete Battery Protection and Gas Gauge Solution in One Package
- Available in a 38-Pin TSSOP (DBT) package
- APPLICATIONS
- Notebook PCs
- Medical and Test Equipment
- Portable Instrumentation
Description
The bq20z45-R1 SBS-compliant gas gauge and protection IC is a single IC solution designed for battery-pack or in-system installation. The bq20z45-R1 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals, monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack as well and reports the information to the system host controller over a serial-communication bus. Together with the integrated analog front-end (AFE) short-circuit and overload protection, the bq20z45-R1 maximizes functionality and safety while minimizing external component count, cost, and size in smart battery circuits.
The implemented Impedance Track™ gas gauging technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables remaining capacity to be calculated with discharge rate, temperature, and cell aging all accounted for during each stage of every cycle with high accuracy.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The Texas Instruments Advanced bqMTester Multi-Station Test and Program Board is designed to calibrate and program electronic smart battery modules based on the latest Texas Instruments advanced battery gas gauges (BQ20z40 (...)
Features
- Programs and Calibrates Smart Battery Modules Based on the Following Devices: BQ20z40 (...)
Software development
Features
- Ensure to start with a known good data flash
- Simplify DF configuration
- Guide through device calibration
- Help to select the right chemistry
- Learn correct battery Qmax and Resistance
Design tools & simulation
The Battery Management Studio (bqStudio) chemistry update zip file contains data used by bqStudio for selecting the (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
TSSOP (DBT) | 38 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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