TPS2561AQDRCRQ1

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TheTPS2561AQDRCRQ1, otherwise known as a Programmable USB Power Switch Controller with Autonomous Recharge and Surge Protection, is an integrated device for auto-recharging batteries in USB host systems. The device includes a USB switch controller, a 5K to 7.5KμF recharge pre-charge capacitor, and surge protection circuit in a tiny 1.1mm WLCSP, or Wafer Level Chip Scale Package, package. This device, which is classified under PMIC - Power Distribution Switches, Load Drivers, is suitable for industrial, electrical and medical applications where the need for precise control of high current load switching and surge protection is required.

The TPS2561AQDRCRQ1 can be used to control the current flow between the Host USB port and an external device, such as a 3.3V charging port, making it a potential solution for internal/external power supply applications. It supports USB 1.1 and USB 2.0 type A and B connections, as well as BC1.2 and Apple Fast Charge standards. Furthermore, it can be used in applications such as USB hubs, home energy management and smart USB switches.

The TPS2561AQDRCRQ1 includes an independent, autonomous recharge switch and a series of control logic blocks and analog circuitry. It has a built-in auto-recharge detection system, which prevents the current flow and the drop in input voltage due to battery recharge. The recharge detection system monitors IN and OUT voltage; the moment it detects a drop in voltage, it activates the recharge switch, allowing the current to flow from the USB port to the device. The TPS2561AQDRCRQ1 also features a built-in overload protection as well as an adjustable current limit and over-current protection.

The integrated DRC controller controls and drives the recharge switch, and it operates independently from the main switch channel. The DRC controller is powered by the main switch channel and includes a built-in 1.0KΩ resistor, force discharge circuit, temperature protection and safety delay circuit. The TPS2561AQDRCRQ1 bridge operation is controlled by a low-voltage detect circuit, which activates the switch when the voltage is below the pre-determined level. In addition, its TFT control output pin is used to enable or disable the device. The device is also capable of smart toggle control, reverse battery protection, soft-start control and thermal shutdown.

The TPS2561AQDRCRQ1 is a power switch controller that provides reliable switching, current balance and over-current protection for a range of industrial, electrical and medical applications. Additionally, it features advanced power monitoring, integrated DRC controller, temperature protection and a range of surge protection features. With its ability to support USB 1.1 and USB 2.0 type A and B connections, it is an ideal solution for a variety of internal/external power supply applications.

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