MIC826SYMT-TR: A Comprehensive Overview of Microchip's Voltage Supervisor
In the realm of electronic circuit design, ensuring system stability and data integrity during power-up, operation, and power-down sequences is paramount. This critical task falls to a dedicated class of devices known as voltage supervisors or reset ICs. Among these, the MIC826SYMT-TR from Microchip Technology stands out as a highly reliable and versatile solution for a wide array of applications.
The MIC826SYMT-TR is a precision voltage supervisor designed to monitor voltages in microprocessor-based systems. Its primary function is to assert a reset signal whenever the supply voltage drops below a predefined threshold, holding the microprocessor in a known safe state until the power supply stabilizes at an acceptable level. This prevents unpredictable behavior, data corruption, and potential system failure during unpredictable power events.
Housed in a compact SOT-23-5 package, this device is optimized for space-constrained applications. The "TR" suffix indicates it is supplied on tape and reel, making it perfectly suited for high-volume, automated manufacturing processes. Despite its small size, it packs a significant set of features. A key attribute is its extremely low quiescent current, typically drawing only 1.6 µA. This makes it an ideal choice for battery-powered and portable devices where maximizing battery life is a critical design goal.
The device offers a factory-programmed threshold voltage, ensuring high accuracy and eliminating the need for external components to set the reset threshold, which simplifies board design and reduces the overall bill of materials. The MIC826SYMT-TR features an active-low, open-drain reset output, providing design flexibility as it allows the use of an external pull-up resistor to any voltage rail. It also includes a manual reset input, enabling a system processor or a physical button to force a reset, which is invaluable for debugging and user-initiated reboots.
Typical applications extend across numerous markets, including:
Internet of Things (IoT) Sensors and Modules
Portable Medical Devices and Wearables
Consumer Electronics (smartphones, tablets, digital cameras)
Industrial Control and Automation Systems
Automotive Electronics (non-critical modules)
ICGOO In summary, the MIC826SYMT-TR is a robust, ultra-low-power voltage supervisor that provides a critical safeguard for modern electronic systems. Its combination of precision, minimal power consumption, small form factor, and manual reset capability makes it an excellent choice for designers seeking to enhance the reliability and performance of their power management architecture.
Keywords: Voltage Supervisor, Low Quiescent Current, SOT-23-5, Reset IC, Power Management.
