MAX6338KUB

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A supervisor integrated circuit (IC) is part of a system\'s power management unit (PMU). They monitor the supply voltage in order to detect power drops below a specified minimum, and will take action by resetting the system or powering-down when necessary. The MAX6338KUB is a low-power supervisor IC from Maxim Integrated, designed for use in a variety of applications where accurate voltage monitoring, reset and power-down supply signalling is needed.

The MAX6338KUB is a single-chip device comprising the basic components of a PMU, designed to replace more complex discrete designs. It houses a power supervisor, regulator and a watchdog timer, all of which are integrated on a single die. The supervisor circuit monitors the system’s main power supply and will reset the system when a drop below the minimum supply voltage is detected. This reset will prevent the system going into unknown states and will allow the system to recover after any power disturbances. The regulator provides a stable source of bias voltage to the supervisor, while the watchdog timer will respond to timeout conditions by re-asserting the reset output.

The MAX6338KUB operates over a wide supply range (2.2V to 20V) and provides accurate monitoring of supply voltages as low as 2.2V. It is offered in a small, space-saving SOT-23 package and has a typical supply current of just 20µA. The device is available in -40°C to +85°C and +125°C versions for operation in extreme temperatures. The MAX6338KUB also features a programmable reset delay and timeout period and has a selectable active low RESET output.

The MAX6338KUB supervisor IC can be used in a wide range of portable and stationary equipment. It finds particular use in embedded systems, instrumentation and automotive electronics. Here it provides critical power supply monitoring, resetting and signalling to ensure operation remains stable and reliable.In summary, the MAX6338KUB is a low-power, highly accurate supervisor IC from Maxim Integrated. It offers accurate voltage monitoring, reset and power-down supply signalling over a wide supply range and with a low current draw. It is suitable for a variety of embedded, portable and stationary applications and is available in both commercial and industrial temperature ranges.

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