BQ27441DRZT-G1B

Battery Management Overview

The BQ27441DRZT-G1B is a pack-side Impedance Track fuel gauge for single-cell lithium-ion batteries. It operates within a temperature range of -40°C to +85°C and utilizes a 12-SON (2.5x4mm) surface-mount package. The device communicates via an I2C interface and supports external sense resistors as low as 10mΩ. It provides accurate state-of-charge, remaining capacity, and voltage data through proprietary algorithms.

Battery Management Feature Summary

• Implements the patented Impedance Track algorithm for high-accuracy battery monitoring across varying temperatures and aging conditions.
• Features an integrated microcontroller peripheral with automatic power mode transitions to minimize system energy consumption.
• Supports configurable digital output alarms for low battery alerts and SOC change events via the GPOUT pin.

Battery Management Applications

• Smartphones and feature phones
• Tablets and handheld terminals
• Digital cameras and video camcorders
• MP3 and multimedia players

Battery Management Procurement Notes

Verify the specific suffix 'G1B' against the manufacturer's current datasheet to confirm revision status and material compliance. Ensure the ordering quantity matches the specified tape-and-reel packaging requirements. Confirm that the selected sense resistor value aligns with the device's supported minimum resistance specifications for optimal performance.

Battery Management Selection Notes

Select this component for applications requiring precise single-cell lithium-ion monitoring in space-constrained designs. The 12-SON package suits portable electronics where board area is limited. Verify compatibility with the host microcontroller's I2C capabilities and ensure the system architecture supports the required external sense resistor placement for current measurement.

Battery Management Part Context

This part belongs to Texas Instruments' Impedance Track family of fuel gauges. It serves as a pack-side solution for single-cell lithium-ion batteries, offering an alternative to system-side monitoring. The device integrates necessary sensing and processing functions into a compact form factor, reducing the complexity of battery management systems in consumer electronics.

Battery Management Replacement Considerations

The BQ27410DRZT-G1 is listed as a discontinued direct replacement option. Verify functional equivalence and pinout compatibility before substitution. Other family members like the BQ27441DRZR-G1A may offer similar features but differ in packaging or revision status.