BQ771808DPJT

Battery Management Overview

The BQ771808DPJT is a battery protection integrated circuit from Texas Instruments designed for lithium-ion and lithium-polymer cells. It supports stacks of two to five series-connected cells with a maximum operating supply voltage of 25 V. The device operates within a temperature range of -40 °C to +85 °C and features ultra-low quiescent current consumption of 1 µA. Packaged in an 8-pin WSON (3x4 mm) surface-mount format, it provides overvoltage protection with an internal delay timer.

Battery Management Feature Summary

• Integrates overvoltage protection functionality with an internal delay timer mechanism
• Supports battery stack configurations ranging from two to five series-connected cells
• Designed for compatibility with both lithium-ion and lithium-polymer battery chemistries

Battery Management Applications

• Protection circuits for multi-cell lithium-ion battery packs
• Safety monitoring in portable electronic devices using stacked cell architectures
• Battery management systems requiring low standby power consumption

Battery Management Procurement Notes

Verify the specific suffix DPJT against official datasheets to confirm package type and tape-and-reel specifications. Ensure the application environment remains within the specified -40 °C to +85 °C operating temperature range. Confirm that the system voltage does not exceed the 25 V maximum rating. Cross-reference the part number with manufacturer documentation to validate RoHS compliance status before integration into final designs.

Battery Management Selection Notes

Select this component when designing protection circuits for 2S to 5S lithium-based battery stacks requiring minimal quiescent current. The 8-WSON package suits space-constrained applications. Verify that the required protection logic aligns with the device's overvoltage capabilities. Consider thermal performance limits if operating near the upper boundary of the specified temperature range.

Battery Management Part Context

This device belongs to the BQ7718xx family of battery protection ICs from Texas Instruments. It shares functional similarities with other members like the BQ771803DPJR but differs in specific configuration options and pin assignments. The family targets compact, high-density battery management solutions for consumer electronics and industrial applications requiring reliable cell-level protection.

Battery Management Replacement Considerations

The BQ771803DPJR serves as a related alternative within the same product family. Verify pin-to-pin compatibility and specific feature differences such as delay timer configurations before substitution. Consult the official datasheet for detailed comparison of electrical characteristics and functional limitations.