BQ7790521PWR

Battery Management Overview

The BQ7790521PWR is a battery protection device 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 supports an output voltage of 16 V. The component features a low quiescent current of 6 uA and provides an output current capability of 1 mA. It is housed in a TSSOP-20 package suitable for surface mount installation. The device 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 power consumption for extended standby life
• Integrated safety mechanisms for lithium-based chemistries

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 requirements

Battery Management Procurement Notes

Verify the specific suffix '21' against the official datasheet to confirm pinout and feature configuration. Ensure the TSSOP-20 package matches your PCB footprint design. Confirm humidity sensitivity handling procedures are followed during assembly to prevent damage. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Battery Management Selection Notes

Select this component when designing systems with 3 to 5 series cells requiring ultra-low quiescent current. The TSSOP-20 package offers a compact solution for space-constrained applications. Consider the 6 uA operating current for battery-powered devices where standby time is critical. Ensure the input voltage range aligns with the maximum pack voltage of your application.

Battery Management Part Context

This part belongs to the BQ77905 family of battery protectors, which are engineered for stackable multi-cell configurations. The family supports various lithium chemistries including Li-ion and LiPo. The BQ7790521PWR specifically utilizes the TSSOP-20 package, distinguishing it from other variants in the series that may use different form factors or pin counts.

Battery Management Replacement Considerations

Check for BQ7790521PW as a potential equivalent if the PWR suffix denotes a specific tape-and-reel variant. Verify pin compatibility before substituting with other BQ77905 series members.