BQ25071DQCT

Battery Chargers Overview

The BQ25071DQCT is a single-cell lithium iron phosphate (LiFePO4) linear battery charger manufactured by Texas Instruments. It supports a maximum input current of 1A and provides a regulated output voltage of 4.9V for LiFePO4 cells. The device includes an integrated 50mA Low Dropout (LDO) regulator to supply auxiliary loads. It operates with a maximum input supply voltage of 10.2V and features programmable charge current control. The component is housed in a 10-WSON package measuring 3mm x 2mm, designed for surface-mount installation.

Battery Chargers Feature Summary

• Integrated 50mA LDO for auxiliary power supply
• Optimized charging profile for LiFePO4 chemistry
• Programmable charge current via external resistor
• Thermal regulation and overvoltage protection

Battery Chargers Applications

• Portable medical devices requiring LiFePO4 batteries
• Industrial handheld instruments
• Consumer electronics utilizing single-cell LiFePO4 power sources
• IoT sensors with auxiliary load requirements

Battery Chargers Procurement Notes

Verify the specific ordering suffix to ensure the correct tape-and-reel packaging configuration matches assembly requirements. Confirm that the WSON-10 footprint aligns with the target PCB layout. Ensure the application environment remains within the specified operating temperature range of -40°C to +85°C. Validate input voltage limits do not exceed 10.2V to prevent device damage.

Battery Chargers Selection Notes

Select this component when designing systems based on single-cell LiFePO4 batteries requiring a compact linear charging solution. The integrated 50mA LDO makes it suitable for applications needing both battery charging and low-power logic supply from a single IC. Consider thermal dissipation capabilities as linear chargers generate heat proportional to the voltage differential between input and battery.

Battery Chargers Part Context

This part belongs to the BQ25071 family of battery management solutions. It is specifically engineered for LiFePO4 chemistry, distinguishing it from standard Li-ion/Li-Po chargers in the same series which typically target 4.2V or 4.35V output voltages. The DQCT suffix indicates the commercial grade variant in a reel package.

Battery Chargers Replacement Considerations

• BQ25070DQCT

Battery Chargers FAQ

What is the maximum input voltage supported by the BQ25071DQCT?

The device supports a maximum input supply voltage of 10.2V.

Does the BQ25071DQCT include a backup power source?

Yes, it integrates a 50mA LDO regulator that can supply auxiliary loads while the main battery is charging.