BQ27500DRZT-V100G4

Battery Management Overview

The BQ27500DRZT-V100G4 is a System-Side Impedance Track™ Fuel Gauge manufactured by Texas Instruments. It is designed for lithium-ion and lithium-polymer battery packs, providing accurate state-of-charge (SOC) monitoring. The device operates within a supply voltage range of 2.5 V to 6 V and supports cell counts from one to four in series. It features an integrated 12-bit ADC for precise voltage and current sensing, enabling detailed battery characterization. The component utilizes the Impedance Track algorithm to track battery capacity changes over time.

Battery Management Feature Summary

• Implements the Impedance Track fuel gauge algorithm for high-accuracy state-of-charge estimation
• Integrates a 12-bit analog-to-digital converter for direct voltage and current measurement
• Supports communication via standard I2C interface for host system integration
• Includes programmable parameters for battery pack configuration and protection thresholds

Battery Management Applications

• Lithium-ion battery packs for portable electronics
• Medical devices requiring precise battery monitoring
• Industrial handheld equipment
• Power tools with rechargeable battery systems

Battery Management Procurement Notes

Verify the specific revision suffix 'V100G4' against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering part number matches the required tape-and-reel quantity specified in the official documentation. Cross-reference the package marking code to distinguish between different manufacturing dates or regional variants.

Battery Management Selection Notes

Select this component when high accuracy is required for single-cell lithium-ion or lithium-polymer batteries. It is suitable for applications where the host processor can support the I2C protocol and the Impedance Track learning cycle. Consider the operating temperature range of -40°C to +85°C for environmental suitability. Evaluate the need for external components such as sense resistors based on the expected current load.

Battery Management Part Context

This part belongs to the BQ27500 family of fuel gauges, which are widely used in portable devices. The 'DRZT' designation indicates a 12-pin SON package with tape-and-reel packaging. The 'G4' suffix typically denotes lead-free and RoHS-compliant materials. Variants like BQ27500-V100 share similar functionality but may differ in packaging or specific parameter configurations.

Battery Management FAQ

Does the BQ27500DRZT-V100G4 support multi-cell battery packs?

Yes, it supports up to four cells in series.

What type of battery chemistry is supported?

It is designed for lithium-ion and lithium-polymer chemistries.