Texas Instruments

TPS79501DCQR

The Texas Instruments TPS79501DCQR is a high-performance, ultra-low-power, single-cell linear lithium-ion (Li+) battery charger with a 4.5A, 5V boost converter. It is designed to provide efficient and reliable charging for a wide range of applications, including portable devices, wearable electronics, and IoT devices.

Description:

The TPS79501DCQR is a highly integrated solution that combines a high-efficiency boost converter with a charging controller. It features a low quiescent current, which helps to minimize power consumption and extend the battery life of the device. The device is available in a compact 20-pin QFN package, making it suitable for space-constrained applications.

Features:

1. Ultra-low-power operation: The TPS79501DCQR features a low quiescent current of 2.5µA in standby mode, which helps to minimize power consumption and extend battery life.
2. High-efficiency charging: The device offers high charging efficiency, with up to 93% efficiency for a 5V, 2A input and a 3.7V, 2A output.
3. Wide input voltage range: The TPS79501DCQR can operate with an input voltage range of 3.5V to 6V, making it suitable for a variety of power sources.
4. Integrated boost converter: The device includes a 4.5A, 5V boost converter, which can be used to power external loads or to provide a higher voltage output.
5. Advanced charging features: The TPS79501DCQR supports constant current/constant voltage (CC/CV) charging, as well as thermal regulation and battery temperature monitoring.
6. Protection features: The device includes over-voltage protection, over-current protection, short-circuit protection, and thermal shutdown protection to ensure safe and reliable operation.
7. Small form factor: The TPS79501DCQR is available in a compact 20-pin QFN package, making it suitable for space-constrained applications.

Applications:

1. Portable devices: Smartphones, tablets, and other handheld devices.
2. Wearable electronics: Smartwatches, fitness trackers, and other wearable devices.
3. IoT devices: Sensors, smart home devices, and other IoT applications.
4. Medical devices: Portable medical equipment and wearable health monitors.
5. Industrial equipment: Portable industrial devices and equipment with limited space for charging circuits.

In summary, the Texas Instruments TPS79501DCQR is a highly efficient and ultra-low-power single-cell Li+ battery charger with an integrated boost converter, making it an ideal solution for a wide range of portable and IoT applications. Its advanced charging features, protection options, and compact form factor make it a versatile choice for designers looking to optimize power consumption and performance in their devices.