bq4050
Overview
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 packbased solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for Li-Ion and LiPolymer battery packs.
- 1 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
