Overview
The BQ40Z80RSMR from Texas Instruments is a highly integrated, single-chip battery management solution designed for 2-series to 6-series lithium-ion (Li-ion) and lithium-polymer (Li-polymer) battery packs. This device incorporates Texas Instruments' patented Impedance Track® Technology, which accurately measures the available charge in Li-ion and Li-polymer batteries. It provides comprehensive protection, gas gauging, and authentication features, making it a robust solution for various battery-powered applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | VQFN (RSM) | - |
| Pins | 32 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | 2.2 to 32 | V |
| Input Voltage Range (SMBC, SMBD, etc.) | -0.3 to 35 | V |
| Thermal Resistance (Junction-to-Ambient) | 47.4 | °C/W |
| Regulator Output Current Limit | 20 | mA |
| Internal Reference Voltage | 1.215 to 1.225 | V |
Key Features
- Fully integrated 2-series to 6-series Li-ion or Li-polymer cell battery pack manager and protection.
- Next-generation patented Impedance Track® Technology for accurate charge measurement.
- Configurable multifunction pins supporting various applications.
- Supports Elliptic Curve Cryptography (ECC) or SHA-1 authentication.
- High-side N-CH protection FET drive and integrated cell balancing.
- Sophisticated charge algorithms including JEITA, enhanced charging, adaptive charging, and cell balancing.
- Supports TURBO Mode 2.0/Intel® Dynamic Battery Power Technology (DBPTv2).
- Diagnostic Lifetime Data Monitor and Black Box Recorder.
- LED display and two-wire SMBus v1.1 interface.
- IATA support and compact 32-lead QFN package.
Applications
- Industrial Appliances and Robots.
- Handheld Garden and Power Tools.
- Battery Powered Vacuums.
- Energy Storage Systems and UPS.
Q & A
- What is the BQ40Z80RSMR used for?
The BQ40Z80RSMR is used for managing and protecting 2-series to 6-series lithium-ion and lithium-polymer battery packs. - What technology does the BQ40Z80RSMR use for charge measurement?
The BQ40Z80RSMR uses Texas Instruments' patented Impedance Track® Technology for accurate charge measurement. - What types of authentication does the BQ40Z80RSMR support?
The BQ40Z80RSMR supports Elliptic Curve Cryptography (ECC) or SHA-1 authentication. - What is the operating temperature range of the BQ40Z80RSMR?
The operating temperature range is -40°C to 85°C. - What interface does the BQ40Z80RSMR use for communication?
The BQ40Z80RSMR uses a two-wire SMBus v1.1 interface. - Does the BQ40Z80RSMR support cell balancing?
Yes, the BQ40Z80RSMR supports integrated cell balancing while charging or at rest. - What are some of the protection features of the BQ40Z80RSMR?
The device provides protection against overvoltage, undervoltage, overcurrent, short-circuit current, overload, and overtemperature conditions. - Can the BQ40Z80RSMR be used in safety-critical applications?
The device includes multiple safety features, but it is important to consult the datasheet and relevant safety guidelines before using it in safety-critical applications. - What is the package type and pin count of the BQ40Z80RSMR?
The package type is VQFN (RSM) with 32 pins. - Does the BQ40Z80RSMR support any specific battery power technologies?
Yes, it supports TURBO Mode 2.0/Intel® Dynamic Battery Power Technology (DBPTv2).
