BQ7790522PWR

Battery Management Overview

The BQ7790522PWR is a battery protection IC from Texas Instruments designed for 3- to 5-series lithium-ion and lithium-phosphate packs. It operates within a supply voltage range of 3 V to 25 V and features a maximum output voltage of 4.25 V. The device supports ultra-low power consumption with a working supply current of 6 uA. It is housed in a TSSOP-20 package suitable for surface mount installation. The component functions reliably across an operating temperature range of -40°C to +85°C.

Battery Management Feature Summary

• Stackable architecture enabling multi-cell series protection
• Ultra-low quiescent current for extended battery life
• Autonomous cell balancing capability
• Integrated HIBERNATE mode for deep sleep applications

Battery Management Applications

• Portable electronic devices requiring multi-cell battery management
• Power tools utilizing lithium-ion or lithium-phosphate packs
• Medical equipment with strict power efficiency requirements
• Uninterruptible power supplies (UPS) for small-scale systems

Battery Management Procurement Notes

Verify the specific suffix '22' against the official Texas Instruments datasheet to confirm exact electrical characteristics and pinout configuration. Ensure compatibility with the target PCB footprint, specifically the TSSOP-20 package dimensions. Confirm that the application environment stays within the specified -40°C to +85°C operating temperature range. Check for moisture sensitivity level requirements during storage and assembly processes.

Battery Management Selection Notes

Select this component when designing systems with 3 to 5 series cells requiring autonomous balancing and low standby power. The BQ7790522PWR is suitable for applications where stackability reduces component count compared to non-stackable alternatives. Consider the TSSOP-20 package constraints for board space. Evaluate if the integrated protection features meet safety standards for the intended end-use product without external logic.

Battery Management Part Context

This part belongs to the BQ77905 family of primary protectors. It shares architectural similarities with variants like BQ7790508PW but differs in specific parameter settings defined by the suffix. The family is characterized by its ability to operate as a standalone protector while supporting advanced features like cell balancing and hibernation modes for optimized energy management.

Battery Management Replacement Considerations

BQ7790508PW is a related variant within the same family. Verify functional equivalence regarding stacking capabilities and balancing thresholds before substitution.