MAX6385XS46D2-T

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Power Management Integrated Circuits (PMICs) are essential components on virtually every electronic system today. As PMICs become ever more sophisticated, so their use in increasingly advanced systems such as servers, home automation solutions, industrial controls and automotive applications grows apace. Among these are a group of components known as Supervisors – and in this article, we take a look at the MAX6385XS46D2-T application field and working principle.

The MAX6385XS46D2-T is a low-dropout (LDO) voltage supervisor designed for systems that require low input voltage operation, such as battery-powered equipment. This supervisor supports dual-channel monitoring, allowing the designer to monitor two distinct voltages simultaneously. The MAX6385XS46D2-T features active high and active low open-drain outputs, adjustable threshold and timeout counts and extended temperature performance. The supervisor also has additional features that make it especially suitable for low input-voltage systems that require accurate voltage monitoring, such as notebook PCs, digital cameras, and personal medical devices.

The MAX6385XS46D2-T supports a wide range of input voltages, making it suitable for both single-supply and split-supply systems. The device operates with an input range of 1V to 5.5V, allowing it to support both 5V and 3V systems. In addition, the supervisor is designed for very low-voltage operation, with a minimum input voltage of 1.2V. This makes it ideal for battery-powered applications, where the voltage is usually around 1V or lower. The MAX6385XS46D2-T can also monitor negative voltages as low as -5.5V, allowing it to be used in dual-supply systems.

In terms of output specifications, the MAX6385XS46D2-T has an active high Open-Drain (OD) output with an adjustable delay time and adjustable threshold voltage. This output can be enabled and disabled using the Set/Reset (SET/RES) pin. The output logic level is adjustable to support multiple logic voltages. The output is an open-drain type, where the output will remain open when disabled and pull-down to the logic low level when output is enabled. The OD output also has an internal pull-up resistor of 10K ohms.

The active low OD output has adjustable threshold voltage, timeout time and output logic level. This output can be equipped with an external pull-up resistor. The output of this OD output can also be enabled and disabled using the SET/RES pin. The output also has an internal pull-down resistor of 10K ohms.

The MAX6385XS46D2-T has a 150µA minimum supply current and low quiescent current of only 4.2µA. It also features a very high ProtectOA Gain of 63dB with 0.1µA minimum quiescent current, making it suitable for both battery-powered systems and systems with variable voltage input. The device has an adjustable input voltage detector threshold range of 2.0V to 5.5V, accurate within 1.0% at 5V, 3V and 1.8V.

The MAX6385XS46D2-T is designed to support a wide range of operating temperatures, from -40°C to +85°C, making it suitable for a variety of applications. Its excellent thermal performance ensures that the device will not be affected by sudden thermal changes or extreme temperatures.

In conclusion, the MAX6385XS46D2-T is a high-performance, low-cost, low-power LDO voltage supervisor that is ideal for any system that requires low input voltage operation, such as battery-powered equipment. The device\'s excellent thermal performance, adjustable input voltage detector threshold and adjustable timeout, protection mode and open-drain output make it a great choice for any system design. With its wide range of features and capabilities, the MAX6385XS46D2-T is ideal for a variety of applications.

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