BQ25890HRTWT

Battery Chargers Overview

The BQ25890HRTWT is an I2C-controlled single-cell 5A fast charger from Texas Instruments, designed for lithium-ion and lithium-polymer batteries. It features a wide input voltage range of 3.9V to 14V and supports USB On-the-Go (OTG) boost mode with adjustable output voltage between 4.5V and 5.5V. The device integrates a 1.5MHz switching regulator, achieving up to 93% efficiency at 2A charging current. It includes a narrow VDC power path, ideal diode operation, and comprehensive protection mechanisms such as thermal regulation and overcurrent protection.

Battery Chargers Feature Summary

• Integrates MaxCharge technology to optimize charging speed and system performance under high input voltage conditions.
• Supports USB On-the-Go functionality with adjustable boost output voltage ranging from 4.5V to 5.5V.
• Features a narrow VDC power path management system that enables instantaneous system power-up even without a battery or during deep discharge states.

Battery Chargers Applications

• Smartphones
• Tablets
• Portable networking devices

Battery Chargers Procurement Notes

Verify the specific suffix 'H' against the official datasheet to confirm pinout and functional compatibility, as suffixes may indicate package variations or material changes. Ensure the selected component matches the required operating temperature range of -40°C to +85°C. Cross-reference the manufacturing date code and RoHS compliance status with the latest production notices to guarantee supply chain integrity and regulatory adherence.

Battery Chargers Selection Notes

Select this component when designing systems requiring high-efficiency charging from high-voltage adapters up to 14V. It is suitable for applications needing integrated USB OTG boost capabilities alongside fast charging. Consider the WQFN-24 package dimensions for PCB layout constraints. Verify that the I2C interface requirements align with the host controller's communication protocols and address configurations.

Battery Chargers Part Context

This part belongs to the BQ25890 family of charge management ICs from Texas Instruments. It is specifically engineered for portable electronics requiring robust power management. The device combines battery charging and system power path management in a single solution, reducing component count and board space compared to discrete designs.

Battery Chargers Replacement Considerations

The BQ25890RTWR is a related variant within the same family. Verify if the 'H' suffix denotes a specific package or material difference before substitution. Consult the official datasheet for pin-to-pin compatibility and electrical parameter equivalence to ensure seamless integration into existing designs.