DS1836D-20+

Series:	MicroManager
Packaging:	Tube
Part Status:	Obsolete
Type:	Battery Backup Circuit
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active High
Reset Timeout:	200 ms Minimum
Voltage - Threshold:	2.72V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-PDIP
Base Part Number:	DS1836

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Introduction

The DS1836D-20+ is a microcontroller supervisor, with Digital Thermal Monitoring (DTM) functions. It is designed to power new microprocessor and microcontroller systems, using a variety of power supplies. This device provides essential protection, including: system reset, voltage monitoring and over-temperature detection.

Application Field

The DS1836D-20+ can be used in a wide range of applications, including automotive, avionics, industrial, communications and consumer products. It is a highly reliable and flexible device, designed to protect instrumentation, actuators and any other electrical devices from being damaged by excessive input voltages or temperatures.In local area networks (LANs) and digital/analog systems, the DS1836D-20+ is used to ensure that the power is supplied to the system in a reliable way. It can also be used to supervise and monitor the system temperatures and voltages, and to provide the reset circuit so that the system can recover after power failures.In automotive applications the DS1836D-20+ can be used to provide power protection and reset to the transceivers, coils and capacitors. It can also be used in battery charging and charging systems, to provide protection to the battery against overcharge and over-temperature. In industrial and avionics systems, the DS1836D-20+ is used to monitor and supervise other circuits, to protect them against over-temperatures, overvoltages and misoperation.

Working Principle

The DS1836D-20+ works by sensing the voltage and temperature on its environment, and activating its reset circuit if a certain level is exceeded. The device has two independent reset circuits that can be configured to activate at different voltage thresholds, to ensure optimal protection. The thermistor input is used to monitor the temperature and to provide extra protection when the temperature exceeds a certain level.The DS1836D-20+ also has a digital input interface, which can be used to communicate with the system, to monitor its status and control its operation. It also has several digital output pins, which can be used to control external devices or to provide signals to other microcontroller or controller systems.The device is powered through an operating voltage range of 4.5V to 5.5V, and supports both 5V and 3.3V logic levels.

Conclusion

The DS1836D-20+ is a highly reliable and flexible microcontroller supervisor, designed to protect modern instrumentation and electronic systems from damage due to overvoltages, over-temperatures and misoperation. Its two independent reset circuits and digital input/output pins make it an ideal device for a variety of applications, from automotive to avionics, industrial and consumer electronics.

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