bq2058 is a lithium ion battery pack supervisor that protects and individually monitors 3 or 4 series lithium ion (Li-Ion) cells for overvoltage, undervoltage and overcurrent. It is designed for battery pack integration, has minimal external components, drives external FET switches and has selectable overvoltage (VOV) thresholds.
The bq2058 Lithium Ion Pack Supervisor is designed to control charge and discharge cell voltages for three or four lithium ion series cells. It protects the battery pack by monitoring individual cells for overvoltage and undervoltage conditions, as well as monitoring the pack for overcurrent events.
The device drives external FET switches to limit charging and discharging potentials based on user-configurable thresholds and delays. It features a low supply current of 25µA typical and sleep current of 0.7µA typical, making it suitable for battery pack integration with minimal external components.
| Package Type | 16-pin 150-mil narrow SOIC |
|---|---|
| Sample Rate | 40ms typical |
The standard version has an overvoltage limit of 4.25V.
The typical supply current is 251A.
The typical sleep current is 0.7uA.
The overvoltage limit is 4.25V.