Lithium Ion Pack Supervisor For 3- And 4-Cell Packs

The BQ2058 Lithium Ion Pack Super- visor is designed to control the charge and discharge cell voltages for three or four lithium ion (Li-Ion) series cells, accommodating battery packs contain- ing series/parallel configurations. The low operating current does not over- discharge the cells during periods of storage and does not significantly in- crease the system discharge load. The BQ2058 CAN be part of a low-cost Li-Ion charge control system within the bat- tery pack. The BQ2058 controls two external FETs to limit the charge and discharge poten- tials. The BQ2058 allows charging when each individual cell voltage is below VOV (overvoltage limit). If the voltage on any cell exceeds VOV for a user-configurable delay period (tOVD), the CHG pin is driven high, shutting off charge to the battery pack. This safety feature pre- vents overcharge of any cell within the battery pack. After an overvolt- age condition occurs, each cell must fall below VCE (charge enable voltage) for the BQ2058 to re-enable charging. The BQ2058 protects batteries from overdischarge. If the voltage on any cell falls below VUV (undervoltage limit) for a user-configurable delay pe- riod (tUVD), the DSG output is driven high, shutting off the battery dis- charge. This safety feature prevents overdischarge of any cell within the battery pack. By Texas Instruments
BQ2058 's PackagesBQ2058 's pdf datasheet
BQ2058C SOIC
BQ2058D SOIC
BQ2058G SOIC
BQ2058R SOIC
BQ2058W SOIC
BQ2058WSN SOIC
BQ2058MSN SOIC
BQ2058FSN SOIC
BQ2058KSN SOIC
BQ2058SN SOIC
BQ2058CSN SOIC
BQ2058DSN SOIC
BQ2058RSN SOIC
BQ2058JSN SOIC
BQ2058GSN SOIC




BQ2058 Pinout, Pinouts
BQ2058 pinout,Pin out
This is one package pinout of BQ2058,If you need more pinouts please download BQ2058's pdf datasheet.

BQ2058 Application circuits
BQ2058 circuits
This is one application circuit of BQ2058,If you need more circuits,please download BQ2058's pdf datasheet.


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BQ2058 Application Notes BQ2058 RoHS BQ2058 Circuits BQ2058 footprint