Texas Instruments

BQ24073RGTR

The BQ24073RGTR is a highly integrated, multichemistry battery charge management device from Texas Instruments (TI). It is designed to provide efficient and reliable charging for single-cell lithium-ion (Li-ion) and lithium-polymer (Li-poly) batteries, as well as other chemistries like nickel-cadmium (NiCd) and nickel-metal hydride (NiMH). The device is available in a 20-pin, 3mm x 3mm RoHS-compliant, lead (Pb) free, thermally enhanced QFN package (RGTR).

Key Features:

1. Multichemistry support: Li-ion, Li-poly, 2-3 cell NiMH/NiCd, and lead-acid batteries.
2. High efficiency: Up to 95% peak efficiency for Li-ion and Li-poly batteries.
3. Constant current/constant voltage (CC/CV) charging profile: Ensures safe and efficient battery charging.
4. I2C and power switch control: Allows for programmable charge current, termination current, and other parameters.
5. Thermal regulation: Includes thermal foldback and thermal shutdown for protection against overheating.
6. Power path management: Supports USB and battery power sources, with automatic input priority switching.
7. Charge termination: Supports current termination, time termination, or a combination of both for optimal charging.
8. Battery gas gauge: Estimates the remaining battery capacity using coulomb counting or state-of-charge (SoC) algorithms.
9. Safety features: Overcharge protection, over-discharge protection, short-circuit protection, and over-temperature protection.
10. Small form factor: 3mm x 3mm QFN package, ideal for portable applications.

Applications:

1. Portable electronics: Smartphones, tablets, wearables, and other handheld devices.
2. Wireless communication devices: Bluetooth headsets, wireless keyboards, and IoT devices.
3. Medical devices: Personal health monitors, hearing aids, and portable medical equipment.
4. Consumer electronics: Portable speakers, e-cigarettes, and smart home devices.
5. Industrial equipment: Portable meters, data loggers, and handheld test equipment.
6. Automotive and transportation: GPS devices, infotainment systems, and electric vehicle charging systems.

The BQ24073RGTR is a versatile and efficient battery charge management solution that can be easily integrated into a wide range of devices, providing reliable and safe charging for various battery chemistries.