BQ25040DQCR

Battery Chargers Overview

The BQ25040DQCR is a single-cell lithium-ion battery charger IC from Texas Instruments, designed for space-constrained portable applications. It operates from USB ports or AC adapters with an input voltage range of 4.5 V to 6.5 V. The device supports a maximum output current of 1.2 A and provides a regulated 4.2 V charging voltage. It integrates a 50 mA low-dropout (LDO) regulator for auxiliary loads. The component is housed in a WSON-10 package and functions within a temperature range of -40°C to +125°C.

Battery Chargers Feature Summary

• Integrates a linear charge controller optimized for single-cell Li-ion batteries
• Includes a dedicated 50 mA LDO regulator for powering system loads during charging
• Supports input power sources including standard USB ports and AC adapters

Battery Chargers Applications

• Portable consumer electronics requiring compact power management
• USB-powered devices needing integrated battery charging solutions
• Space-limited handheld equipment utilizing single-cell lithium-ion batteries

Battery Chargers Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout compatibility and thermal characteristics. Ensure the procurement source provides valid RoHS compliance data. Cross-reference the manufacturer part number with the latest datasheet revision to confirm operational parameters match design requirements before integration.

Battery Chargers Selection Notes

Select this component when designing systems limited to single-cell lithium-ion chemistry. It is suitable for applications where board space is restricted due to its small WSON-10 footprint. Consider the 1.2 A output capability relative to target battery capacity and required charge times. Verify that the host system can provide stable input voltage within the specified 4.5 V to 6.5 V range.

Battery Chargers Part Context

This device belongs to the bq25040 series of battery chargers. It is distinct from other variants like the bq25071, which targets lithium iron phosphate chemistries. The DQCR suffix indicates a specific tape-and-reel packaging configuration manufactured by Texas Instruments for surface-mount assembly processes.

Battery Chargers Replacement Considerations

Direct substitutes include other bq25040 variants such as BQ25040DQCT, which shares identical electrical specifications but differs in packaging format. Ensure any replacement maintains the WSON-10 footprint and compatible thermal performance.