BQ29413DCTT

Battery Management Overview

The BQ29413DCTT is a secondary over-voltage protection integrated circuit designed for lithium-ion and lithium-polymer battery packs. It provides precise voltage monitoring to prevent cell damage from excessive charging voltages. The device operates within a supply voltage range of 4 V to 25 V, making it suitable for multi-cell configurations. It features a fixed output threshold of 4.6 V to trigger protection mechanisms. Packaged in an SM-8 surface-mount case, the component supports industrial temperature ranges from -40 °C to +110 °C, ensuring reliable performance in demanding environments.

Battery Management Feature Summary

• Provides secondary over-voltage protection for lithium-based battery cells
• Monitors cell voltage to disconnect load or charger upon threshold breach
• Operates with wide input voltage range supporting multiple series cells

Battery Management Applications

• Lithium-ion battery pack protection circuits
• Lithium-polymer battery management systems
• Portable electronic device power safety modules

Battery Management Procurement Notes

Verify the exact suffix against the manufacturer's current datasheet to confirm pinout and electrical specifications. Ensure the procurement channel sources genuine Texas Instruments components to avoid counterfeit risks. Confirm RoHS compliance status if required by specific regulatory standards. Check for any recent lifecycle notices indicating obsolescence or recommended design changes before finalizing orders.

Battery Management Selection Notes

Select this component when secondary over-voltage protection is required for 2 to 4 series lithium cells. Compare the fixed 4.6 V threshold against other family members like the BQ29412 (4.45 V) to match specific cell chemistry limits. Consider the SM-8 package size constraints relative to available PCB real estate. Evaluate the operating temperature range requirements against the intended application environment.

Battery Management Part Context

This part belongs to the BQ2941x family of battery protection ICs from Texas Instruments. These devices are engineered specifically for safeguarding rechargeable lithium batteries against fault conditions. The family includes variants with different voltage thresholds to accommodate various cell types. The BQ29413DCTT represents one specific configuration within this broader portfolio of power management solutions.

Battery Management Replacement Considerations

The BQ29412DCTT offers a similar function but with a lower 4.45 V threshold. Verify that the higher 4.6 V trip point of the BQ29413DCTT aligns with the target battery system requirements before substituting.