BQ25172DSGR

Battery Chargers Overview

The BQ25172DSGR is a standalone battery charger IC designed for Nickel Metal Hydride (NiMH) batteries with configurations ranging from one to six cells. It provides an output current of 800 mA and supports a maximum output voltage of 10.5 V. The device operates on a supply voltage range of 3 V to 18 V. It is housed in an eight-pin WSON package and is rated for operation between -40°C and +125°C.

Battery Chargers Feature Summary

• Supports charging for single-cell to six-cell NiMH battery packs
• Operates within a wide input voltage range of 3 V to 18 V
• Integrated thermal regulation for safe operation

Battery Chargers Applications

• Consumer electronics requiring NiMH battery management
• Portable devices utilizing multi-cell NiMH power sources
• Industrial equipment with NiMH backup power systems

Battery Chargers Procurement Notes

Verify the specific suffix 'DSGR' corresponds to the reel packaging configuration when ordering. Confirm that the target application strictly utilizes NiMH chemistry, as this component is not suitable for Lithium-ion or LiPo variants. Ensure the design accommodates the specified 800 mA output capability and the 3 V to 18 V input requirements.

Battery Chargers Selection Notes

Select this component specifically for NiMH applications requiring up to six cells in series. It is distinct from the BQ25170, which targets Lithium-based chemistries. Designers must ensure the input source can sustain the required voltage range and that the thermal environment remains within the -40°C to +125°C operational limits for reliable performance.

Battery Chargers Part Context

This part belongs to the BQ2517x family of standalone linear chargers from Texas Instruments. While the BQ25170 addresses Lithium-ion and LiFePO4 needs, the BQ25172 variant is engineered exclusively for Nickel Metal Hydride technologies. Both share similar form factors but differ fundamentally in charge algorithms and supported battery types.

Battery Chargers Replacement Considerations

The BQ25170DSGR is a related family member but serves Lithium chemistries, making it unsuitable for direct replacement in NiMH designs. No other public substitute part numbers are confirmed for this specific NiMH function.