TPS2226ADB

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Power Management Integrated Circuit (PMIC) is a system-level platform that enables efficient subsystems across multiple sectors including consumer, industrial, and medical applications, as well as automotive, IoT, and AI applications. The TPS2226ADB is a power switch IC and load driver IC that is part of an extensive portfolio of PMIC for providing higher current drive capability and excellent thermal characteristics. This PMIC is a high-side power switch IC with TSOT-6 package. It has the ability to provide a constant and accurate current up to 5A.

Overview of TPS2226ADB

TPS2226ADB is part of the TPS2226 family of products. It is designed to provide a high power switch and/or load driver in applications where high current is needed. It helps in providing higher current than a MOSFET can and is perfect for space constrained applications. The device is internally protected against overcurrent, overvoltage, and overtemperature conditions. As a result, it is suitable for applications requiring robust and reliable safety features, such as automotive applications. The device operates from supply voltage range of 4.5V to 18V.

Features and Benefits

• The device provides a constant output current of up to 5A.
• It is offered in a TSOT-6 package that provides a space-saving solution for applications which require a high current switch.
• It offers bidirectional current flow and has overcurrent, overvoltage and overtemperature protection.
• It is suitable for automotive applications due to its robust protection features.

Applications

TPS2226ADB is suitable for automotive, consumer, industrial, and medical applications. It is particularly suitable for car charging applications as it can provide a high current of up to 5A. The device is also suitable for applications where it is required to turn on and off a system at a precise current. Examples of such applications include motor control, automotive headlight systems, and battery powered applications.

TPS2226ADB Working Principle

The TPS2226ADB consists of two NMOS transistors, two voltage regulator blocks (VR), current sense circuit and a reference voltage generator. The NMOS transistors are connected in series to form a power switch. One of the transistors is used as the power switch and the other as a controlled variable resistance. The current sense circuit measures the current going through the power switch and sends the signal to the reference voltage generator. This signal is used to control the voltage regulator blocks (VR) responsible for controlling the gate voltage of the power switch. The reference voltage generator also provides a reference voltage which is then compared to the voltage coming out of the current sense circuit. If there is a difference between the two, the power switch will be turned off. This is how the TPS2226ADB works to provide a constant and accurate current up to 5A.

Conclusion

The TPS2226ADB is a high power switch and/or load driver IC from the TPS2226 family of products. It is designed to provide a high current of up to 5A for space constrained applications. The device is protected against overcurrent, overvoltage, and overtemperature conditions, making it suitable for automotive applications. The device is suitable for automotive, consumer, industrial, and medical applications. It can be used in applications where it is required to turn on and off a system at a precise current. The working principle of the TPS2226ADB consists of two NMOS transistors, two voltage regulator blocks (VR), current sense circuit and a reference voltage generator.

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