DS1238A-5+

Series:	MicroManager
Packaging:	Tube
Part Status:	Obsolete
Type:	Battery Backup Circuit
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active High/Active Low
Reset Timeout:	40 ms Minimum
Voltage - Threshold:	4.62V
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Through Hole
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-PDIP
Base Part Number:	DS1238A

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PMIC - Supervisors

Power Management Integrated Circuit (PMIC), also known as Supervisors, are specialized electrical circuits designed to provide power control, current limiting, and protection from electrical overstress. Among them, DS1238A-5+ from Dallas Semiconductor is a type of innovative 8-Pin Supervisors IC. It is used for a wide range of applications and has a simple working principle.The DS1238A-5+ contains two accurate current sensing comparators and a constant current generator. The comparators compare the sense voltage from the current generator with the voltage of a low battery alarm flag. Whenever the low battery flag is activated, the DS1238A-5+ will shut down the voltage regulator, disconnecting it from the power supply, thus reducing current consumption and therefore protecting the circuit from overflowing.The DS1238A-5+ is mainly used in application where a low power component or circuit needs protection against an uncontrolled or excessive current consumption or an over-voltage situation. With the built-in voltage regulator, it allows designers to monitor the voltage input to prevent damage in the circuit and keep the component working properly.Also, the DS1238A-5+ has two comparators, one fixed and one adjustable. The adjustable one allows a designer to set up a specific voltage and then track changes in the supply voltage over time. This can be used to determine whether a component or circuit is receiving too much or too little voltage. In addition to monitoring the voltage, the DS1238A-5+ also has a built-in over-current detector which helps to protect the component by automatically shutting down the voltage regulator whenever the current consumption is above a certain level.Moreover, some applications require a Supervisor that can accurately track the input voltage. In this case, the DS1238A-5+ is ideal because it has an adjustable gain setting feature that allows the user to accurately adjust the output voltage of the voltage regulator, thus providing a stable and accurate output voltage to the component.Finally, the DS1238A-5+ is suitable for applications that require a low cost, low power consumption and reliable supervisor IC. As a single-chip supervisor IC, it provides protection for a wide range of electronic circuits, and its simple working principle enables designers to easily and cost-effectively implement it into their designs. In conclusion, the DS1238A-5+ is a low-cost and highly efficient supervisor IC which can be used in a wide range of applications. It has two accurate current sensing comparators and a constant current generator, and can provide accurate voltage monitoring and protection from overload or over-voltage situations. Therefore, it is ideal for stabilizing and protecting a low power component or circuit, offering low power consumption and reliable performance.

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