AiT Semiconductor, a leading innovator in the field of semiconductor technology, has introduced its latest cutting-edge product, the A4775, a high-performance single N-MOSFET power switch designed for power rail on/off control with remarkable features, including a low RDS (ON) of approximately 70 mΩ and a full suite of protection functions.
The A4775 is equipped with sophisticated charge pump circuitry that drives the internal MOSFET switch. One notable feature of the A4775 is the inclusion of a flag output, which serves as an indicator for fault conditions. This is especially crucial in safeguarding against large di/dt events that could lead to the supply falling out of regulation.
In order to cater to various applications and scenarios, the A4775 includes an ISET pin for current limit point setting. Users can simply connect a resistor from the ISET pin to ground to establish the desired current limit for the switch, granting them flexibility and control over their power management needs.
Additional noteworthy features of the A4775 include soft-start functionality, which helps limit inrush current during plug-in operations, and thermal shutdown capability. The latter is designed to prevent catastrophic switch failure resulting from high-current loads. Moreover, the A4775 boasts output anti-back-irrigation protection, ensuring the safety of the device whether the CE pin is connected to GND or VIN.
The A4775 also includes under-voltage lockout (UVLO) functionality, ensuring that the device remains off unless a valid input voltage is present, further enhancing its reliability and protection capabilities. Additionally, the A4775 offers a precision resistor-programmable output current limit of up to 3.5A.
One of the standout attributes of the A4775 is its low quiescent current, which is a mere 40 μA. This makes the device an excellent choice for portable battery-operated equipment, where power efficiency and battery life are paramount.
To cater to a wide range of applications and installation preferences, the A4775 is available in various package options, including SOT-25, SOT-26, SOP8, TSOT-25, TSOT-26, and DFN6(2x2).
With the introduction of the A4775, AiT Semiconductor continues to demonstrate its commitment to delivering high-performance and feature-rich semiconductor solutions to meet the evolving needs of its customers in various industries.
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