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The Texas Instruments TPS2549IRTERQ1 is a USB power management integrated circuit (IC) designed for fast charging applications. It supports various USB charging protocols and is capable of managing power delivery through USB ports, enhancing the charging versatility and efficiency for devices. Functions - Automatic Detection: The TPS2549 automatically detects the type of connected USB device and provides the appropriate charging current. - Flexible Configuration: It supports various USB power standards including USB BC1.2, Apple charging protocols, and dedicated charging ports (DCP). - Overcurrent Protection: The built-in current limit and protection features prevent damage to the charging circuit and connected devices. - Thermal Shutdown: The IC includes thermal protection to safeguard against overheating. - Status Indicators: Provides output for status indication, which is useful in designing user interfaces. Applications - Smartphones and Tablets: Ideal for fast charging applications in mobile devices. - Wearable Devices: Supports charging needs for wearables that require efficient power management. - Consumer Electronics: Can be used in various consumer electronics that utilize USB for power. - USB Hubs: Useful in USB hubs requiring multiple device charging capabilities. Alternative Parts - TPS2540: A simpler version for DCP applications, less flexible than TPS2549. - TPS2543: Similar features with some differences in output current specifications and protocols supported. - TPS2544A: Provides different programmable charging profiles for various applications. - TPS65218: A power management unit with several outputs that can be used in more complex designs, though it is not strictly a USB charger. Embedded Modules There are evaluation modules and development kits available from Texas Instruments that include the TPS2549: - TPS2549EVM: Evaluation module for testing the features and performance of the TPS2549. - TIDA-00585: Reference design for USB enabled power charger that can integrate TPS2549 functionality. Related Q&A 1. Q: What types of devices can the TPS2549 charge? A: The TPS2549 can charge a wide range of devices including smartphones, tablets, wearables, and other consumer electronics that utilize USB power standards. 2. Q: What is the maximum current output of the TPS2549? A: The TPS2549 can deliver up to 3A of output current, supporting fast charging for compatible devices. 3. Q: Does the TPS2549 support USB Power Delivery (USB PD) standards? A: The TPS2549 primarily supports USB BC1.2 and various proprietary charging protocols, but it does not natively support USB Power Delivery. 4. Q: How does the TPS2549 protect devices from overcurrent situations? A: The TPS2549 includes built-in current limit and overcurrent protection features to prevent damage from excessive current draw. 5. Q: Can the TPS2549 be used in portable charger designs? A: Yes, the TPS2549 is suitable for portable charger designs, providing effective power management for charging multiple devices efficiently.