Overview
The BQ40Z50RSMR from Texas Instruments is a fully integrated, single-chip battery management solution designed for 1-series, 2-series, 3-series, and 4-series Li-Ion and Li-Polymer battery packs. This device incorporates Texas Instruments' patented Impedance Track™ technology to accurately measure available charge in these battery types. It provides a comprehensive array of features for gas gauging, protection, and authentication, making it a robust solution for various battery-powered applications.
Key Specifications
| Attribute | Value |
|---|---|
| Package | 32-VFQFN Exposed Pad |
| Number of Pins | 32 |
| Operating Temperature | -40°C to 85°C |
| Supply Voltage | 2.2V to 26V |
| Number of Cells | 1 to 4 cells |
| Battery Chemistry | Lithium Ion/Polymer |
| Interface | SMBus v1.1 |
| Fault Protection | Over Current, Over Temperature, Over/Under Voltage, Short Circuit |
| Dimensions | 4mm x 4mm x 1mm |
| RoHS Status | ROHS3 Compliant |
Key Features
- Fully integrated 1-series, 2-series, 3-series, and 4-series Li-Ion or Li-Polymer cell battery pack manager and protection
- Next-Generation Patented Impedance Track™ technology for accurate charge measurement
- High side N-CH protection FET drive
- Integrated cell balancing while charging or at rest
- Full array of programmable protection features (voltage, current, temperature, charge timeout, CHG/DSG FETs)
- Sophisticated charge algorithms (JEITA, enhanced charging, adaptive charging, cell balancing)
- Supports TURBO BOOST mode and Battery Trip Point (BTP)
- Diagnostic lifetime data monitor and black box recorder
- LED display support
- SHA-1 authentication for secure battery pack identification
- Compact 32-lead QFN package
Applications
- Notebook/Netbook PCs
- Medical and test equipment
- Portable instrumentation
Q & A
- What is the BQ40Z50RSMR used for?
The BQ40Z50RSMR is used for managing and protecting 1-series to 4-series Li-Ion and Li-Polymer battery packs.
- What technology does the BQ40Z50RSMR use for charge measurement?
The BQ40Z50RSMR uses Texas Instruments' patented Impedance Track™ technology for accurate charge measurement.
- What are the key protection features of the BQ40Z50RSMR?
The device provides protection against overvoltage, undervoltage, overcurrent, short-circuit current, overload, and overtemperature conditions.
- Does the BQ40Z50RSMR support cell balancing?
Yes, the BQ40Z50RSMR supports integrated cell balancing while charging or at rest.
- What interface does the BQ40Z50RSMR use for communication?
The BQ40Z50RSMR uses a two-wire SMBus v1.1 interface for communication with the host system.
- Does the BQ40Z50RSMR support TURBO BOOST mode?
Yes, the BQ40Z50RSMR supports TURBO BOOST mode by providing the available max power and max current to the host system.
- What is the purpose of SHA-1 authentication in the BQ40Z50RSMR?
SHA-1 authentication is used for secure identification of genuine battery packs.
- What are the dimensions of the BQ40Z50RSMR package?
The package dimensions are 4mm x 4mm x 1mm.
- Is the BQ40Z50RSMR RoHS compliant?
Yes, the BQ40Z50RSMR is ROHS3 compliant.
- What types of applications is the BQ40Z50RSMR typically used in?
The BQ40Z50RSMR is typically used in notebook/netbook PCs, medical and test equipment, and portable instrumentation.
