BQ25756ERRVR

Battery Chargers Overview

The BQ25756ERRVR is a synchronous buck-boost charge controller from Texas Instruments designed for standalone or I2C-controlled bidirectional power flow. It supports wide input voltage ranges and manages lithium-ion, lithium polymer, or LiFePO4 batteries with configurations up to 14 cells. The device integrates all loop compensation for the switching converter, enabling high-density solutions. Key electrical parameters include a 36V output voltage capability, operation within a 4.2V to 36V supply range, and a VQFN-36 package. It features adjustable switch frequencies and precise regulation for charging current and voltage.

Battery Chargers Feature Summary

• Bidirectional power flow capability supporting reverse mode operation for USB-PD EPR applications
• Integrated synchronous buck-boost converter with automatic loop compensation for simplified design
• Supports multiple battery chemistries including lithium-ion, lithium polymer, and LiFePO4
• Independent resistor-programmable mode alongside I2C host control options

Battery Chargers Applications

• High-voltage battery charging systems
• USB-PD Extended Power Range (EPR) devices
• Solar-powered energy storage systems
• Portable power stations and generators

Battery Chargers Procurement Notes

Verify the specific suffix ERRVR against the manufacturer's official datasheet to confirm pinout, thermal pad configuration, and tape-and-reel specifications. Ensure compatibility with the target PCB footprint and reflow soldering profile requirements for the VQFN-36 package. Cross-reference the ordering part number with the latest factory documentation to avoid discrepancies in marking or material composition.

Battery Chargers Selection Notes

Select this component when designing systems requiring bidirectional energy transfer between a wide-range input source and a multi-cell battery pack. It is suitable for applications needing both efficient charging and power delivery capabilities. Consider the VQFN-36 package size and thermal performance constraints. Evaluate whether I2C control or independent resistor programming better fits the system architecture and cost targets.

Battery Chargers Part Context

This part belongs to the BQ25756 family of power management ICs focused on advanced battery charging and power conversion. It serves as a core component in modern portable electronics and renewable energy storage solutions where space efficiency and high voltage handling are critical. The device represents an evolution in integrated power stage designs that reduce external component counts.

Battery Chargers Replacement Considerations

Consult the official TI product selection guide for direct replacements within the BQ2575x series. Verify functional equivalence regarding voltage ratings, current capabilities, and package dimensions before substitution.