LTC4223IDHD-1#TRPBF

PMIC - Hot Swap Controllers

The LTC4223IDHD-1#TRPBF is a low-cost integrated hot swap controller with advanced features. It enables hot plugging of two high-side power MOSFETs with zero overshoot, as well as fault detection and protection. This device is suitable for implementation in a wide range of applications, such as low-power logic and microcontroller systems, high-current analog supplies, and industrial systems.

Application Field

The LTC4223IDHD-1#TRPBF is designed for applications in which two separate power supplies, or two sets of supplies, are connected to a main supply rail. It provides high-current outputs by using two independent, isolated MOSFET overdrives. It also offers advanced features such as current control, current limit and fault protection.

The LTC4223IDHD-1#TRPBF is suitable for applications where it is important to have both immediate and accurate over drive, as well as protection against over voltage and under voltage. Examples of such applications include, but are not limited to, storage subsystems, power supply systems, LED lighting systems, and automotive, computer and consumer products. In addition, it is also suitable for avionics and medical applications, as well as industrial and telecom systems.

Working Principle

The LTC4223IDHD-1#TRPBF is capable of providing up to 2.7A of maximum continuous output current to a load connected to either of its two output rails. It achieves this by using two independent, isolated MOSFETs. Each one is driven by a separate output driver, which is controlled by the device\'s integrated logic and enabled by the VDD logic supply. The logic supply voltage is compared against an adjustable set point and the appropriate MOSFET is then enabled.

In addition, the LTC4223IDHD-1#TRPBF provides current limiting, fault protection and under-voltage detection. It can also be used to control the power-up sequence of multiple rails, providing soft-start and precise control of each rail. The device also offers flexible I2C programming, allowing configuration settings such as current limit and fault detection levels to be adjusted and stored in memory.

Conclusion

The LTC4223IDHD-1#TRPBF is a versatile, low-cost integrated hot swap controller, designed to provide precise and reliable control of power supplies. It is suitable for a wide range of applications, including storage subsystems, power supply systems, LED lighting systems, and avionics and medical systems. In addition, it provides advanced features such as current control, current limit and fault protection. Therefore, the LTC4223IDHD-1#TRPBF is an excellent choice for applications where precise and reliable control is required.