VNQ5E250AJTR-E

VNQ5E250AJTR-E is a low-side power switch in the form of a MOSFET, mainly used in the power distribution section of power management integrated circuits (PMICs). It is an ideal switch transistor for applications such as automotive, industrial, communications and LED lighting systems.

VNQ5E250AJTR-E integrates an N-channel enhancement mode power MOSFET accompanied by low on-resistance performance and low gate charge with a low stand-by current of less than 5 µA. The device also features a dual control input with separate enable inputs for pull-up and pull-down control of load current. Its maximum voltage tolerance is -40V to 80V, with a maximum current rating of 5A. This power switch is qualified for automotive temperature range and offers integrated protection features such as over-voltage, over-temperature, reverse-current and level-shift protection.

Application Field

The VNQ5E250AJTR-E load switch is mainly applied as a power distribution switch in power management integrated circuits, providing isolation and protection of sensitive circuits and enabling faster transient response while controlling inrush current. This device is best suited for automotive, industrial, communications and LED lighting systems and many other applications where high efficiency and superior EMI performance is a priority.

The VNQ5E250AJTR-E switch is suitable for single-ended, positive or negative output applications, offering superior EMI performance, high efficiency, and excellent accuracy. The device also allows flexible device routing, resulting in better airflow and easier layout. The versatile low-side power switch can be used in a wide array of automotive and industrial system, as well as in energy-harvesting systems, and wherever a low-power, low-side switch element is required.

Working Principle

The working principle of the VNQ5E250AJTR-E switch is based on the turning off and on of the MOSFET by the input of a low-side, low power signal. It can be used to control the switch in either the pull-up or pull-down configuration depending on the type of output desired. In pull-up configuration, the MOSFET is turned on until the voltage across the drain and source of the MOSFET is below a certain voltage when the signal is sent. This allows the switch to be controlled as a low-side switch. The device also has two separate enable inputs, giving it the ability to pull-up or pull-down current depending on the orientation of the inputs.

The VNQ5E250AJTR-E can also be used in conjunction with an external sense resistor to provide an accurate low-side current limit for the system. This sense resistor can be used to limit the current to precisely control the system current, allowing for control of the current within prescribed limits.

In addition, the VNQ5E250AJTR-E load switch also features a number of integrated protection features, such as over-voltage, over-temperature, reverse-current, and level-shift protection. These safety features help to protect the switch and its environment from damage or premature failure.

Conclusion

The VNQ5E250AJTR-E load switch is designed for use in applications where high efficiency, superior EMI performance and flexible device routing is needed. Its low on-resistance performance, low stand-by current and integrated protection features makes it an ideal switch for use in automotive, industrial, communications and LED lighting systems. Additionally, its ability to be used both in pull-up and pull-down configurations, as well as its integrated sense resistor for current limiting makes it a versatile and reliable switch for a wide range of applications.