BQ7790505PWR

Battery Management Overview

The BQ7790505PWR is a stackable battery protection IC 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 an ultra-low operating supply current of 6 µA. The device provides output currents of 1 mA and supports output voltages of 3 V and 16 V. It is housed in a 20-pin TSSOP package, suitable for surface mount installation, and functions reliably across a temperature range of -40°C to +85°C.

Battery Management Feature Summary

• Stackable architecture enabling multi-cell series protection
• Ultra-low power consumption for extended standby life
• Integrated protection for lithium-ion and lithium-phosphate chemistries

Battery Management Applications

• Portable electronic devices requiring multi-cell battery packs
• Power tools with lithium-ion battery systems
• Medical equipment utilizing stacked battery configurations

Battery Management Procurement Notes

Verify the specific suffix '05' against the manufacturer's official datasheet to confirm the exact threshold settings and pinout configuration. Ensure the TSSOP-20 package variant matches your PCB footprint requirements. Confirm compliance with RoHS directives as specified in the latest product documentation before finalizing procurement.

Battery Management Selection Notes

Select this component when designing systems with 3 to 5 series cells requiring low quiescent current. The stackable design simplifies board layout for higher voltage applications. Ensure the operating environment stays within the specified -40°C to +85°C range. Verify that the 1 mA output current meets the load requirements of the connected monitoring circuitry.

Battery Management Part Context

This part belongs to the BQ7790x family of battery protectors from Texas Instruments. It shares architectural similarities with the BQ77904 but supports up to five series cells. The PWR suffix indicates the TSSOP-20 package type. It is distinct from the BQ77915 series, which offers different feature sets and packaging options.

Battery Management Replacement Considerations

Check for direct pin-compatible substitutes within the BQ7790x family, such as the BQ7790400PWR, ensuring cell count support aligns with system needs. Verify that any replacement maintains the same ultra-low power characteristics and voltage thresholds.