BQ25622RYKR

Battery Chargers Overview

The BQ25622RYKR is an I2C-controlled, single-cell synchronous buck battery charger from Texas Instruments. It supports a maximum input voltage of 18 V and delivers up to 2 A of programmable charge current. The device features Narrow VDC (NVDC) power path management for system instant-on and battery supplementation. Key electrical parameters include a 1.5-MHz switching frequency, ±0.5% charge voltage regulation accuracy, and a 15-mΩ BATFET. It integrates a 12-bit ADC for monitoring voltage, current, and temperature.

Battery Chargers Feature Summary

• Narrow VDC (NVDC) power path management enables system instant-on with depleted batteries and allows the battery to supplement system load during high demand.
• I2C interface provides flexible autonomous or fully programmable control over charging profiles, input limits, and system configuration.
• Integrated 12-bit analog-to-digital converter (ADC) facilitates precise monitoring of input voltage, output current, and battery temperature.
• High-efficiency synchronous buck architecture minimizes heat generation while supporting wide input voltage ranges.

Battery Chargers Applications

• Tablets
• Gaming and computer accessories
• IP cameras and EPOS systems
• Portable medical equipment

Battery Chargers Procurement Notes

Verify the specific suffix RYKR against the manufacturer datasheet to confirm package type and tape/reel specifications. Ensure compatibility with I2C bus voltages in the target design. Confirm RoHS compliance status through official documentation before integration. Cross-reference pinouts with the selected footprint to prevent assembly errors.

Battery Chargers Selection Notes

Select this component for designs requiring NVDC power path management to ensure immediate system startup without a battery. The I2C controllability allows for dynamic adjustment of charging parameters based on host system requirements. Consider the 18-V input limit when selecting adapter sources. The integrated ADC reduces external component count for monitoring applications.

Battery Chargers Part Context

This part belongs to the BQ2562x family of single-cell chargers. It shares functional similarities with the BQ25620 but offers higher current capabilities and refined power path management. The family is designed for portable electronics needing efficient charging and robust system power management.

Battery Chargers Replacement Considerations

The BQ25620 is a related device within the same family. Verify if the lower current rating of the BQ25620 meets the application requirements. Check pinout compatibility and software register mapping differences between the two variants before substitution.

Battery Chargers FAQ

What is the maximum input voltage supported by the BQ25622RYKR?

The device supports a maximum operating input voltage of 18 V, with an absolute maximum rating of 26 V.

How does the NVDC feature benefit the system?

NVDC ensures the system voltage never drops below the battery voltage, allowing for instant-on functionality even with a depleted or missing battery.

Is the charge current adjustable?

Yes, the charge current is programmable via the I2C interface, with a maximum capability of 2 A.