BQ25730RSNR

Battery Chargers Overview

The BQ25730RSNR is a high-power NVDC buck-boost battery charging controller from Texas Instruments. It supports an input voltage range of 3.5V to 24V and manages 1 to 4 series-connected lithium-ion or polymer batteries. The device delivers a maximum charging current of 10A with ±3% accuracy and maintains a charging voltage precision of ±0.5%. Operating in a 32-pin WQFN package (4mm x 4mm), it achieves up to 97.5% conversion efficiency in buck-boost mode. It features I2C programmability, wide temperature operation from -40°C to +125°C, and integrates dynamic input current regulation for efficient power management.

Battery Chargers Feature Summary

• Integrates a high-efficiency synchronous buck-boost architecture for seamless power path management between the adapter and battery.
• Supports multiple fast-charging protocols including USB PD3.0, PPS, QC4+, and QC3.0 for broad adapter compatibility.
• Provides comprehensive protection mechanisms including over-voltage, over-current, and thermal monitoring via integrated sensors.
• Enables flexible system configuration through an I2C interface for dynamic parameter adjustment and status reporting.

Battery Chargers Applications

• High-performance gaming laptops requiring 100W to 200W fast charging capabilities
• Mobile workstations and thin-and-light notebooks utilizing multi-cell battery configurations
• Industrial rugged tablets and portable field equipment operating in extreme environments
• Professional power tools and cordless devices demanding rapid recharge cycles

Battery Chargers Procurement Notes

Verify the specific suffix RSNR against the official datasheet to confirm the 32-pin WQFN package type and reel packaging specifications. Ensure that the procurement order aligns with the manufacturer's minimum shipping quantities and lead time requirements. Cross-reference the component marking code with the latest production change notifications to guarantee authenticity and traceability during quality assurance inspections.

Battery Chargers Selection Notes

Select this component when designing systems requiring high-power density charging solutions with wide input voltage flexibility. It is suitable for applications needing precise current control and extensive protocol support without external protocol controllers. Consider the thermal performance of the WQFN package and ensure adequate PCB copper area for heat dissipation under maximum load conditions to maintain reliability.

Battery Chargers Part Context

This part belongs to the BQ257xx family of NVDC battery chargers designed for high-power mobile computing. It complements other TI power management solutions by providing robust charge management for multi-cell setups. The device addresses the growing demand for faster charging speeds in portable electronics while maintaining system stability and safety standards required for modern consumer and industrial hardware.

Battery Chargers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the official TI product selection guide for potential alternatives within the same family or functionally equivalent devices from other manufacturers if supply constraints exist.

Battery Chargers FAQ

Does the BQ25730RSNR support reverse OTG discharge?

Yes, the device supports reverse OTG discharge functionality, allowing the battery to power the system when no external adapter is connected.

What is the typical static power consumption in sleep mode?

The typical static power consumption in sleep mode is 15μA, ensuring minimal battery drain when the system is powered off.