ADM803TAKSZ-REEL7

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PMIC - Supervisors are components that provide power supply monitoring and reset generation functions to a system. ADM803TAKSZ-REEL7 is one such example, developed by Analog Devices, Inc. Specifically designed with low voltage microprocessor applications in mind, the ADM803TAKSz-REEL7 provides the monitoring of input and output power supply levels, adjustable timeout periods, and undervoltage lockout, as well as other features. In this article, we will look at the application field and working principles of the ADM803TAKSZ-REEL7.

Application Field

The ADM803TAKSZ-REEL7 is specifically designed for µP-based systems that require three voltage levels. The device provides power supply monitoring and reset, as well as undervoltage lockout and adjustable timeout inputs, making it suitable for any applications where these are necessary. These applications include, but are not limited to, microcontrollers, processors, and system-on-a-chip devices.

Thanks to its adjustable timeout feature, the ADM803TAKSz-REEL7 is also suitable for low-cost systems that require limited power hold-up time and reset support. Additionally, this device is also suitable for use in battery-backed and hot-swap applications. Finally, the ADM803TAKSZ-REEL7 supports advanced noise immunity and provides excellent ESD protection, making it well-suited for use in high-noise environments.

Working Principle

The ADM803TAKSZ-REEL7 has three independent supply monitor channels, one for the supply voltage (VCC) and two for monitoring the voltage levels of other power sources (VIN). The device allows for flexible configuration for each channel, allowing for range-dependent reset or supply monitoring. Furthermore, the device can be configured as either an open-drain (OD) or CMOS output.

The ADM803TAKSZ-REEL7 includes two reset outputs, which can be used for a single push-pull reset signal or for two independent open-drain reset signals. The device automatically generates reset pulses with adjustable width and timeout settings. The reset output can be synched to other signals in the system, providing a very accurate reset activation.

The ADM803TAKSZ-REEL7 supports adjustable timeout (MFT) and under voltage lockout (UVLO) settings, as well as accurate supply monitoring. Its integrated supply voltage comparator provides accurate Vcc monitoring, while its integrated under Voltage Lockout (UVLO) detects over or under voltage events.

The device also has an adjustable input filter and offers reverse voltage protection, making it suitable for use in applications where these features are required. Finally, the ADM803TAKSZ-REEL7 offers an extremely wide operating temperature range (-40°C to 125°C), making it suitable for use in extreme environments.

Conclusion

The ADM803TAKSZ-REEL7 is a PMIC - Supervisors component developed by Analog Devices, Inc. specifically designed for low voltage microprocessor applications. The device provides power supply monitoring, reset with adjustable timeouts, as well as undervoltage lockout and reverse voltage protection. The ADM803TAKSZ-REEL7 has a wide operating temperature range and offers excellent ESD protection, making it suitable for use in high-noise environments.

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