BQ7790508PWR

Battery Management Overview

The BQ7790508PWR is a stackable 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 25 V and features an ultra-low quiescent current of 6 uA. The device supports cell voltages up to 4.2 V and functions across a temperature range of -40 C to +85 C. Packaged in a TSSOP-20 format, it enables multi-device stacking configurations for high-voltage applications.

Battery Management Feature Summary

• Stackable architecture supporting 3 to 5-series cell configurations
• Ultra-low power consumption with 6 uA operating current
• Autonomous cell balancing capabilities
• HIBERNATE mode for extended standby life

Battery Management Applications

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

Battery Management Procurement Notes

Verify the specific suffix 'PWR' indicates reel packaging when sourcing. Confirm RoHS compliance status through official documentation. Ensure the ordering part number matches the required output voltage threshold of 4.2 V. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.

Battery Management Selection Notes

Select this component for applications requiring low standby current in stacked battery architectures. The TSSOP-20 package suits space-constrained designs. Verify that the system voltage does not exceed the 25 V limit. Consider thermal performance requirements within the specified operating temperature range.

Battery Management Part Context

Part of the BQ77905 series, which provides primary protection for lithium-based chemistries. This series emphasizes low power usage and autonomous balancing. The PWR variant specifically denotes tape-and-reel packaging for automated assembly processes.

Battery Management Replacement Considerations

BQ7790508PW serves as the tube-packaged equivalent. BQ7790500PWR offers a 4.2 V threshold option. BQ7790522PWR provides a 4.25 V threshold alternative. Verify functional equivalence before substitution.