MAX6385XS43D7-T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active High
Reset Timeout:	1.2 s Minimum
Voltage - Threshold:	4.3V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-82A, SOT-343
Supplier Device Package:	SC-70-4
Base Part Number:	MAX6385

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Overview

The MAX6385XS43D7-T is an ultra-small, low-profile system reset supervisor from Maxim Integrated. It provides reset logic durability during power source and system tracking. Its features and benefits make it a great choice for applications such as smart meters, intelligent point-of-load (PoL) power converters, medical instruments, and automotive systems.

Application Field

The MAX6385XS43D7-T is designed to provide a user- programmable reset signal during power supply and system power-on sequencing events. This signal can be used to reset microprocessors, logic devices, and other integrated circuits. Additionally, the MAX6385XS43D7-T provides superior reset logic immunity during brownout conditions, thus helping to protect the system from unexpected events or faults. The MAX6385XS43D7-T is suitable for applications in a wide range of industries including automotive, smart meters, medical, and power supplies. Automotive systems benefit from this device as it is designed to operate in temperatures from -40°C to +125°C, which makes it a great choice for use in applications that experience extreme temperatures. Additionally, the device supports hot-socketing, which helps increase reliability for mission- critical applications. The MAX6385XS43D7-T is also a great choice for point-of-load power converters, thanks to its wide power supply range of 1.8V to 5.5V. This provides the designers a strong level of flexibility when designing the power sequence for their systems. Additionally, its wide temperature range, low-power consumption, and small footprint make it a great choice for medical and smart meter applications as well.

Working Principle

The MAX6385XS43D7-T is an ultra-small, low-impact system reset supervisor. It provides reset logic durability during power source and system tracking events. Its working principle is based on monitoring a power supply for out of range or brownout conditions, then generating a reset signal if those conditions are met. The MAX6385XS43D7-T has a wide power supply range from 1.8V to 5.5V and has a programmable reset output delay of 0ms to 64ms. Additionally, the device features user- programmable reset logic feedback, an open-drain active low reset output, an active-low reset input, and an active-low push-pull reset output. These features make the MAX6385XS43D7-T a great choice for protecting systems from unexpected events or faults. The MAX6385XS43D7-T is designed to provide advanced reset logic with system power-on sequencing events. It reset logic is based on two main parameters: the SET threshold and the RESET threshold. If the power supply’s voltage falls below the SET threshold, a reset signal is generated and sent to the system. This reset signal can then be used to reset microprocessors, logic devices, and other integrated circuits. Additionally, if the power supply’s voltage rises above the RESET threshold, the reset signal is removed and the system is again operational.

Conclusion

The MAX6385XS43D7-T is a great choice for applications such as smart meters, intelligent PoL power converters, medical instruments, and automotive applications. Its ultra-small size and low-power consumption make it a great option for those looking to protect their systems from unexpected events or faults. Additionally, its wide power supply range and programmable reset output delay make it a great choice for a variety of uses.

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