BQ25898CYFFR

Battery Chargers Overview

The BQ25898CYFFR is an I2C-controlled single-cell battery charger from Texas Instruments, designed for lithium-ion and lithium-polymer batteries. It features a high-efficiency 3-A switch-mode buck converter operating at 1.5 MHz. The device supports a supply voltage range of 3.9 V to 14 V and delivers up to 3 A charge current. Output voltage is regulated between 4.5 V and 5.5 V. It utilizes a DSBGA-42 package (2.8x2.5 mm) and operates within a temperature range of -40°C to +85°C.

Battery Chargers Feature Summary

• I2C interface for simple configuration and monitoring with minimum bill of materials.
• High-efficiency 1.5-MHz switch-mode buck architecture for optimized thermal performance.
• Integrated overcurrent and overtemperature fault protection mechanisms.

Battery Chargers Applications

• Smartphones and mobile phones
• Tablets and portable computing devices
• Wearable electronics

Battery Chargers Procurement Notes

Verify the specific suffix 'Y' or 'C' against the required datasheet revision, as these may indicate different binning or manufacturing lot specifications. Confirm the DSBGA-42 package dimensions match the PCB footprint exactly. Ensure the I2C address settings align with the system bus requirements. Check RoHS compliance status for environmental regulations. Validate that the 3-A maximum charge current meets the target battery specification.

Battery Chargers Selection Notes

Select this component when a compact, single-cell solution with I2C programmability is required. The 1.5-MHz switching frequency allows for smaller external inductors compared to lower-frequency alternatives. Consider the 3-A limit for smaller capacity batteries where faster charging is needed without excessive heat. The DSBGA-42 package is suitable for space-constrained designs. Ensure the input power source can sustain the required voltage and current levels.

Battery Chargers Part Context

This part belongs to the MaxCharge family of battery chargers from Texas Instruments. It is closely related to the BQ25898 series, which includes variants like the BQ25898YFFT and BQ25898YFFR. These components share similar architectural features but may differ in packaging, shipping quantities, or specific electrical binning. The BQ25898 series is designed for high-efficiency charging in portable consumer electronics.

Battery Chargers Replacement Considerations

BQ25898YFFT

Battery Chargers FAQ

What is the maximum charge current for the BQ25898CYFFR?

The maximum charge current is 3 A.

Does the BQ25898CYFFR support USB host detection?

Yes, it supports I2C and USB interfaces for configuration and communication.