BQ26501PW

Battery Management Overview

The BQ26501PW is a single-cell lithium-ion or lithium-polymer battery fuel gauge integrated circuit manufactured by Texas Instruments. It operates within an ambient temperature range of -20°C to 70°C and utilizes an HDQ interface for communication. The device is housed in an 8-TSSOP package with a width of 4.40mm, designed for surface-mount installation. This component belongs to the bqJUNIOR™ series and functions as a dedicated battery monitor for tracking cell status.

Battery Management Feature Summary

• Provides accurate state-of-charge monitoring for single-cell lithium-based battery chemistries
• Utilizes a half-duplex digital serial interface (HDQ) for system communication
• Designed for compact surface-mount integration in portable electronic devices

Battery Management Applications

• Portable consumer electronics requiring single-cell battery management
• Medical devices utilizing lithium-ion or polymer power sources
• Industrial handheld equipment needing reliable fuel gauge functionality

Battery Management Procurement Notes

Verify the specific suffix 'PW' corresponds to the TSSOP package variant when sourcing. Confirm that the component meets RoHS3 compliance standards required for your assembly process. Ensure the design accommodates the specified operating temperature range of -20°C to 70°C. Check current availability status as this part may be subject to lifecycle restrictions.

Battery Management Selection Notes

Select this component for applications requiring a low-pin-count solution for single-cell monitoring. The HDQ interface minimizes pin usage compared to standard I2C or SMBus alternatives. Consider the thermal performance requirements relative to the TSSOP package limitations. Evaluate if the bqJUNIOR™ series features align with the necessary accuracy and calibration needs of the target product.

Battery Management Part Context

This device is part of the bqJUNIOR™ family from Texas Instruments, focusing on simplified fuel gauge solutions. It serves as a specialized IC within the broader Power Management IC category, specifically targeting battery management subsystems. The component complements other TI battery protection and charging solutions for complete power systems.

Battery Management Replacement Considerations

Public documentation indicates the BQ26501PWR is a related tape-and-reel variant of the same functional device. Verify package compatibility and ordering suffix differences before substitution. No other direct cross-model replacements are confirmed in the provided data.