MAX6858UK25D3+T

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The MAX6858UK25D3+T is a low-cost supervisor and power-good (PG) indicator device specifically designed for 3.3V P systems. The MAX6858UK25D3+T supervisor provides accurate supply voltage monitoring and ultra-low power consumption in a small package. It has an improved accuracy of ±1% at all operating temperatures ensuring a safe system shutdown. The MAX6858UK25D3+T supervisor incorporates a system reset, indicating the lack of power or a supply fault and thus protecting the external logic from a possibly destructive state. This device is typically used as a power monitoring IC for a variety of end-user applications.

The MAX6858UK25D3+T can control voltage levels ranging from +1V to +6V and has an adjustable reset threshold tomonitor positive rail voltages. It includes over-voltage protection circuitry to protect the system against hostile external fault conditions such as a short circuit, and with its small board footprint it can be easily integrated into any design. Its special features also include using active-low analog inputs that can be connected together to generate a reset signal, with the logic-level inputs being independent, as well as the reset output being programmable.

The high performance of the MAX6858UK25D3+T supervisor, the low current consumption and its ability to work in the most extreme temperatures, make it suitable for a wide range of applications. It is mostly used in data storage, automotive, home appliances and medical equipment applications.

The MAX6858UK25D3+T supervisor works on the principle of a comparator. It has two analog inputs; one is the monitor input and the other is the reference. The monitor input is the input that is monitored for any changes in the voltage or current levels. Once it detects a voltage/current level that is higher than the set threshold, it will shut down the system and reset it. The reference input is used to set the voltage/current threshold levels at which the system reset will take place.

The MAX6858UK25D3+T supervisor also includes an on-board power-good indicator which is used to monitor the supply rails. Basically, it is an open-drain output that is used to indicate when the reference voltage level is lower than the monitored voltage level. This output can be used to indicate when it is safe to power up the system safely.

The MAX6858UK25D3+T is thus a low-cost and versatile supervisor that can be used in a variety of applications for monitoring and controlling the power supplies. It is mostly utilized in the automotive, medical, data storage and home appliance applications due to its excellent performance level and its ability to work in extreme temperature conditions. Its small footprint also allows it to be easily integrated into any design.

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