ADM809JAKSZ-REEL7

Reset Timeout:	140 ms Minimum
Voltage - Threshold:	4V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-70, SOT-323
Supplier Device Package:	SC-70-3
Base Part Number:	ADM809
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

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ADM809JAKSZ-REEL7 Application Field and Working Principle

Introduction

The ADM809JAKSZ-REEL7 is an active low-voltage supervisor, classified as an Application (or Analog) and Power Management Integrated Circuit (PMIC) under the Supervisors category. This device is used to monitor the power supplies of electronic equipment like computers, home appliances, and industrial automation systems, to maintain system integrity when the supply voltage goes below, or rises above, a predetermined level. It interfaces with the microcontroller (or host) and offers an active-low signal when the monitored power-supply voltage goes either above or below a predetermined threshold.

Application Fields

The ADM809JAKSZ-REEL7 is usually employed in systems which operate with a varying input voltage, such as those found in power supplies, automotive equipment, and embedded systems. It also works great in motor control systems, home automation systems, and wireless telecommunication systems. As it comes in a compact package, the device is ideal for use in applications which require a compact, high-efficiency supervisor.The device is also capable of monitoring higher voltage ranges, making it suitable for a wide range of applications. This includes industrial equipment which requires a large range of operation and small battery-operated applications under severely limited power.

Working Principle

The ADM809JAKSZ-REEL7 consists of a Low Power Control (LPC) circuit and an Active Low-Voltage detector (LVD). The LPC circuit uses a low-power comparator to compare the voltage at a reference pin to that at a threshold pin and output a signal according to the result. This signal is used to control the LVD, which in turn monitors the voltage between two externally applied inputs by employing feed-forward and failure detection circuits.When the voltage at one of the inputs goes above or below a predetermined threshold, the LVD will output an active-low signal. This is used by the host systems to initiate action, such as sending an interrupt signal or shutting down the system in case of an unexpected power failure.

Conclusion

The ADM809JAKSZ-REEL7 is a powerful and energy-conservative PMIC supervisor which finds use in a variety of applications. Its low-power comparator and active low-voltage detection circuit make it an effective and efficient tool for monitoring and maintaining system integrity. Regardless of the operating voltage range, the ADM809JAKSZ-REEL7 is a reliable and trustworthy choice for those seeking a powerful and reliable supervisor.

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