BQ7790518PWR

Battery Management Overview

The BQ7790518PWR is a battery protection IC from the BQ77905 series, designed for 3- to 5-series lithium-ion and lithium-phosphate battery packs. It operates within a supply voltage range of 25 V and provides an output voltage of 16 V. The device supports surface-mount installation in a TSSOP package. It features stackable architecture for multi-cell configurations and includes autonomous cell balancing capabilities.

Battery Management Feature Summary

• Stackable architecture enabling connection of multiple units for higher cell counts
• Autonomous cell balancing functionality to maintain pack equilibrium
• Integrated protection mechanisms for lithium-ion and lithium-phosphate chemistries

Battery Management Applications

• Lithium-ion battery pack protection
• Lithium-phosphate battery system management
• Multi-series stackable battery modules

Battery Management Procurement Notes

Verify the specific suffix PWR confirms the TSSOP package type and reel packaging configuration. Ensure compatibility with the required operating temperature range and humidity sensitivity handling procedures during assembly. Confirm that the design supports the 25 V maximum working supply voltage constraints defined in the official datasheet.

Battery Management Selection Notes

Select this component when designing systems requiring stackable primary protection for 3 to 5 series cells. It is suitable for applications needing autonomous balancing without external microcontroller intervention. Consider the TSSOP package constraints and thermal performance requirements relative to the expected current paths and ambient conditions.

Battery Management Part Context

This part belongs to the BQ77905 family of ultra-low power primary protectors. It complements other variants like the BQ77915 series by offering specific stacking and balancing features tailored for compact battery management solutions. The device integrates protection logic directly into the package to minimize external component count.

Battery Management Replacement Considerations

Direct substitutes include other BQ77905 series variants with compatible pinouts and electrical characteristics. Verify functional equivalence regarding stackability and balancing modes before substitution.