Texas Instruments

BQ24314CDSGR

The BQ24314CDSGR is a high-performance, single-cell, lithium-ion (Li-ion) and lithium-polymer (Li-poly) battery charger from Texas Instruments (TI). It is designed to provide efficient and reliable charging for a wide range of applications, including portable electronics, wearable devices, and other battery-powered systems.

Description:

The BQ24314CDSGR is a highly integrated, synchronous buck charger with an input voltage range of 3.5V to 5.5V. It features a programmable charge current up to 1.2A and a programmable charge voltage up to 4.4V. The device is available in a compact, thermally enhanced 16-pin, 3mm x 3mm WQFN package.

Key Features:

1. Synchronous buck topology for high efficiency and low thermal dissipation.
2. Wide input voltage range (3.5V to 5.5V) suitable for various power sources.
3. Programmable charge current up to 1.2A for flexible charging requirements.
4. Programmable charge voltage up to 4.4V for compatibility with different battery chemistries.
5. Integrated power switch for thermal regulation and protection.
6. Internal power path management for improved efficiency and safety.
7. Charge termination based on either timer or thermistor for optimized charging.
8. Battery presence detection and charging status indicators.
9. Overcharge protection, overcurrent protection, and thermal shutdown for enhanced safety.
10. Small footprint (16-pin, 3mm x 3mm WQFN package) for space-constrained applications.

Applications:

1. Portable electronics, such as smartphones, tablets, and laptops.
2. Wearable devices, including smartwatches, fitness trackers, and health monitoring systems.
3. IoT devices and wireless sensors.
4. Medical devices and equipment.
5. Consumer electronics, such as cameras, headphones, and portable speakers.
6. Industrial and commercial battery-powered systems.

The BQ24314CDSGR is an ideal choice for designers looking for a highly efficient, compact, and flexible charging solution for single-cell Li-ion or Li-polymer batteries in various applications. Its wide input voltage range, programmable charging parameters, and robust protection features make it suitable for a wide range of portable and battery-powered systems.