Bq40370

Report on Identifier: bq40370

Date: Current
Prepared by: AI Research Assistant
Objective: To identify, characterize, or locate technical documentation for the identifier bq40370.

1. Check physical marking on component – Look for additional lines of text (date code, lot number, or actual part number).
2. Review schematic/BOM – If this came from a design document, confirm the original source or supplier.
3. Contact Texas Instruments support – Provide the full marking and any context (e.g., “Marked as bq40370 on a battery management board”).
4. Inspect for likely correct part numbers:

   2. Key Features

   | Feature | Specification | |---------|---------------| | Cell count | 2S, 3S, or 4S (Li-Ion/Li-Po/LiFePO₄) | | Communication | I²C (100 kHz / 400 kHz) | | Gas gauge algorithm | CEDV (Compensated End of Discharge Voltage) | | Protection features | Overvoltage, undervoltage, overcurrent (charge/discharge), short circuit, overtemperature | | Cell balancing | Passive, integrated (internal or external FETs) | | Current sensing | External sense resistor (typical 5–10 mΩ) | | Operating voltage | 4.5 V to 25 V (pack voltage) | | Temperature range | –40°C to +85°C (operating) | | Package | 24-pin TSSOP (BQ40370PW) | bq40370

5. Environmental tests:
6. Fault Reporting