APX810S05-46SR-7

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 High
Reset Timeout:	20 ms Minimum
Voltage - Threshold:	4.63V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23

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APX810S05-46SR-7 PMIC - Supervisors Introduction and Application

The APX810S05-46SR-7 is a PMIC - Supervisor IC that offers system designers and electronic equipment manufacturers a broad range of protection and diagnostic functions to improve system performance and reliability. This product, by integrating a number of necessary functions into one package, simplifies circuitry and component selection while reducing the part count necessary. These features make this part an ideal choice for applications requiring a space and cost effective system supervisor solution.

Overview

The APX810S05-46SR-7 is manufactured by AAC Technologies and it is available in a tiny WDFN-5L 1.5mm × 1.5mm package. Functionally comprehensive, this component combines a wide range of features, including a precision 5.0V voltage monitoring circuit and a wide range of reset outputs. This device also has a power-on reset, a watchdog timer, brown-out detection and many other integrated circuits, all in a single package. The component operates from a supply voltage range of 2.4V to 8.4V.

Description of Features

The APX810S05-46SR-7 voltage monitoring circuit allows a stable 5.0V output voltage over a wide range of temperatures and supply voltages. This enables the device to accurately segment the system environment into discrete logic states. The reset feature provides an active-low reset output with a selectable delay time of either 0.256 or 2.56 seconds. This feature provides system designers with the flexibility to accommodate a variety of system operational parameters.The power-on reset ensures proper system startup regardless of external voltage variations and any errors generated during system initialization. System sequencing is also supported by the APX810S05-46SR-7’s power-on reset feature, which prevents erroneous back-up and/or restart operations in the event of a power failure.

Application Field

The APX810S05-46SR-7 is designed for use in telecommunications, networking and data communications equipment. It is suitable for use in set top boxes, cable modems, digital subscriber line (DSL) modems, telephone systems and other related applications.The component is also suitable for use in computer motherboards, hard disk drives, graphic cards and other devices that rely on accurate and robust system supervision.

Working Principle

The APX810S05-46SR-7 functions as a supervisor and monitor for voltage and temperature fluctuations, as well as system startup and operation.The component monitors the input voltage of the system and provides a stable reference voltage for other components. The reference voltage is adjustable between 2.4V and 8.4V and is accurate over temperature.The device is used to provide an active-low reset pulse. This pulse is used to indicate an out of tolerance voltage or temperature, or an out of sequence system startup. The reset feature allows the system to operate safely within the specified operating limits, and the user can select a delay time before the active-low pulse is generated.The device also has a watchdog timer that can be set to any interval between 4ms and 1.6s. This timer triggers a reset whenever a predetermined amount of time elapses without the system being reset.The component is also equipped with brown-out detection circuitry that triggers a reset if the input voltage drops below a certain preset level.

Conclusion

The APX810S05-46SR-7 is an ideal PMIC - Supervisor IC for a variety of applications requiring an accurate and reliable reference voltage, as well as reset and monitoring capabilities. It is perfect for applications where space and cost are a concern because it integrates a number of necessary functions into one package, which simplifies circuitry and component selection while reducing the part count necessary.The device is versatile enough to be used in telecommunications, networking, and data communications equipment, as well as in computer motherboards, hard disk drives, and graphic cards. The component functions as a supervisor and monitor for voltage and temperature fluctuations, as well as system start-up and operation, providing a suitable platform for power management and system supervision.

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