BQ40Z80RSMT Battery Management IC with Advanced Impedance Track Algorithm Dual Balancing Modes and Comprehensive Battery Monitoring
Specifications
Manufacturer:
TI
Product Number:
BQ40Z80RSMT
Description:
IC BATT MFUNC LI-ION 2-7C 32VQFN
Highlight:
BQ40Z80RSMT battery management IC
,Battery monitoring IC with impedance track
,Dual balancing battery management IC
Introduction
BQ40Z80RSMT Battery Management Chip
The BQ40Z80RSMT is a fully integrated high-precision battery pack management and protection chip developed by TI.
Core Features
- Advanced Impedance Track™ Algorithm: Combines coulomb counting, voltage estimation, and impedance tracking to provide high-precision SOC measurement with long-term stability, eliminating the need for complex battery pre-characterization.
- Dual Balancing Modes: Supports both active and passive balancing with stronger balancing capability compared to single passive balancing, improving overall performance and service life of multi-cell battery packs.
- Comprehensive Battery Monitoring: Integrates high-precision analog front-end (AFE) to accurately measure battery cell voltage, charge/discharge current, and temperature, supporting capacities up to 29Ah natively with extension capability.
- Multi-Cell Compatibility: Designed for 2-6 series-connected battery packs, compatible with Li-ion, Li-poly, and LiFePO4 battery chemistries for wide range of high-power applications.
- Secure Authentication: Supports Elliptic Curve Cryptography (ECC) or SHA-1 authentication with secure memory for storing authentication keys to prevent counterfeiting.
- Comprehensive Protection Functions: Programmable over-voltage, under-voltage, over-current, and over-temperature protection with thermal shutdown, CHG/DSG FET protection, and AFE protection.
- Flexible Communication Interface: Standard 2-wire SMBus v1.1 interface (compatible with I2C) for seamless communication with host microcontroller.
- Advanced Power Management: Supports Turbo Mode 2.0 and Intel Dynamic Battery Power Technology (DBPTv2) for optimized power allocation.
- Programmable Multi-Function Pins: Eight multi-function pins configurable as thermal inputs, ADC inputs, GPIO pins, presence pins, LED functions, or display button inputs.
- Compact Package: Available in 32-lead 4*4mm WQFN (RSM) package with wide operating temperature range for space-constrained applications.
- Diagnostic & Logging Functions: Integrates diagnostic life data monitor and black box recorder to record battery status and fault information for system debugging.
Typical Applications
- High-Power Portable Electronics: High-end laptops, detachable computers, tablets, and portable power supplies requiring high-precision battery management.
- Power Tools: Handheld gardening tools, electric tools, and battery-powered vacuum cleaners with high-current discharge requirements.
- Industrial Equipment: Industrial instruments, robots, and industrial control devices requiring stable battery monitoring in harsh environments.
- Medical Devices: Portable medical equipment such as handheld diagnostic devices requiring secure authentication and stable operation.
- Energy Storage Systems & UPS: Small to medium-sized energy storage systems and uninterruptible power supplies providing reliable battery monitoring.
- UAVs & Drones: High-power drones and unmanned aerial vehicles requiring high-precision SOC estimation and efficient battery balancing.
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