BQ29704DSER

Battery Management Overview

The BQ29704DSER is a second-level battery protection IC from Texas Instruments, designed for single-cell Lithium-ion and Lithium Polymer batteries. It operates within an 8 V supply voltage range and features a low quiescent current of 4 uA. The device is housed in a compact WSON-6 package with SMD/SMT installation style. It supports an operating temperature range from -40°C to +85°C. This component provides essential overvoltage, undervoltage, and short-circuit protection functions.

Battery Management Feature Summary

• Provides secondary protection against overvoltage, undervoltage, and short circuits for single-cell lithium-based batteries.
• Features ultra-low power consumption with a quiescent current of 4 uA to minimize battery drain during standby.
• Integrated into a small WSON-6 surface-mount package suitable for space-constrained portable electronics.

Battery Management Applications

• Secondary protection stages in portable consumer electronics
• Medical devices requiring redundant battery safety mechanisms
• Industrial equipment utilizing single-cell lithium-ion or polymer batteries

Battery Management Procurement Notes

Verify the specific suffix 'DSER' corresponds to the reel packaging configuration when ordering. Confirm that the application circuit matches the single-cell architecture supported by this part number. Ensure compatibility with the target board's thermal requirements given the WSON-6 footprint. Cross-reference the latest datasheet revision for any updates to electrical characteristics or recommended operating conditions prior to final design approval.

Battery Management Selection Notes

Select the BQ29704DSER when a dedicated second-level protection layer is required alongside a primary protector. It is suitable for designs prioritizing low standby current and compact form factors. Consider the WSON-6 package constraints for PCB layout. Verify that the system's maximum operating voltage does not exceed the device's absolute maximum ratings.

Battery Management Part Context

This component belongs to the BQ2970x family of battery protectors from Texas Instruments. It serves as a complementary safety device to primary protection circuits, enhancing overall system reliability. The series is widely used in applications where battery safety standards mandate redundant fault detection mechanisms.

Battery Management Replacement Considerations

The BQ29700DSER is a related variant within the same family offering similar protection functions. Verify pin-to-pin compatibility and specific threshold voltages before substitution. Other members of the BQ297xx series may offer different feature sets or package options.