MAX809SEUR+T10

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.93V
Operating Temperature:	-40°C ~ 105°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Base Part Number:	MAX809

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Introduction

Power Management Integrated Circuits (PMICs) are integrated circuits that provide the necessary power regulation and control to ensure proper and energy pre-specified operation of an electronics device. PMICs are essential to enable reliable and robust operation of various solid-state technologies. PMICs typically deal with small-signal analog signals and provide high-accuracy to ensure proper operation of the device.A popular type of PMIC is the Supervisors which provides voltage monitoring, resets and other important functions. among these, MAX809SEUR+T10 is a supervisor dedicated to the high performance microcontroller market.

Application Field

The MAX809SEUR+T10 combines two supervisors in a single package, enabling a variety of device functions. The first supervisor is a battery-powered reset generator that can detect low-voltage levels and no operation (NOP) conditions, providing precision power-on reset operation. The second supervisor is an integrated system-level supervisor, providing firmware-controlled active-low reset, manual reset and brownout reset operations. The MAX809SEUR+T10 is commonly used for microcontroller reset generation, monitoring and protection of digital integrated circuits or systems, battery-powered systems and low power applications. The MAX809SEUR+T10 is often found in industrial, medical, automotive, gaming, networking and telecommunications applications.

Working Principle

The MAX809SEUR+T10 integrates two voltage supervisors in a single 8-lead package. Both monitors have internal voltage reference, voltage thresholds and reset signals. The internal voltage reference provides accurate, low temperature drift threshold setting. The MAX809SEUR+T10 can monitor low battery supplies and NOP conditions under various conditions. In addition, the firmware-controlled active-low output can be used to signal a power failure or to bring a system out of sleep mode. The normal reset signal is asserted when the voltage drops below the reset threshold. The manual reset signal allows the user to manually reset the system from the external signal.The MAX809SEUR+T10 also provides brownout prevention through its on-chip comparator. It generates a reset signal whenever the input supply voltage falls below the brownout threshold. This reset signal can be used to reset the system and avoid the system malfunction or data memory corruption during the brownout conditions. This feature is commonly used in meeting specific reliability and safety standards.

Conclusion

The MAX809SEUR+T10 is a voltage regulator and supervisor designed for use with microcontrollers and other digital integrated circuits. It provides reliable and robust power and reset operation, as well as protection against brownout conditions. The MAX809SEUR+T10 is commonly found in industrial, medical, automotive, gaming, networking and telecommunications applications. With its many features and applications, the MAX809SEUR+T10 is a must-have for any power management application.

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