BQ4050 Texas instruments

BQ4050

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BQ4050

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Описание

The Texas Instruments bq4050 device, incorporating Compensated End-of-Discharge Voltage (CEDV) technology, is a highly integrated, accurate, 1-series to 4-series cell gas gauge and protection solution, enabling autonomous charger control and cell balancing.The bq4050 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for Li-Ion and Li-Polymer battery packs.The bq4050 gas gauge communicates via an SMBus-compatible interface and combines an ultra-low power, high-speed TI bqBMP processor, high-accuracy analog measurement capabilities, integrated flash memory, an array of peripheral and communication ports, an N-CH FET drive, and a SHA-1 Authentication transform responder into a complete, high-performance battery management solution.

High-Side Protection N-CH FET Drive Enables Serial Bus Communication During Fault Conditions
Cell Balancing with Internal Bypass Optimizes Battery Health
Diagnostic Lifetime Data Monitor and Black Box Recorder for Failure Analysis
Full Array of Programmable Protection Features: Voltage, Current, Temperature
JEITA Charge Algorithms Support Smart Charging
Analog Front End with Two Independent ADCs
- Simultaneous Current and Voltage Sampling
- High-Accuracy Coulomb Counter with Input Offset Error < 1 µV (Typical)
Supports Battery Trip Point (BTP) Function for Windows^® Integration
LED Display for State of Charge and Battery Status Indication
100-KHz SMBus v1.1 Communications Interface for Programming and Data Access with Alternate 400-KHz Mode
SHA-1 Authentication Responder for Increased Battery Pack Security
Compact 32-Pin VQFN Package (RSM)

Cell chemistry	Li-Ion/Li-Polymer, LiFePO4
Number of series cells	2-4 Cells, Single Cell
Communication interface	SMBus
Battery capacity (min) (mAh)	500
Battery capacity (max) (mAh)	65000
Implementation	Pack
External capacity indication	LED
Features	CEDV algorithm, Cell balancing, Integrated Protector, SHA-1 Authentication
Operating temperature range (°C)	-40 to 85
Cell balancing	Internal
Rating	Catalog