Microchip MIC842HYC5-TR: Precision Voltage Supervision with Robust Push-Pull Output

In the realm of electronic systems, ensuring stable and reliable operation is paramount, especially when dealing with power supply fluctuations. The Microchip MIC842HYC5-TR stands out as a critical component designed to monitor voltage levels and safeguard embedded systems, microcontrollers, and digital circuits. This voltage supervisor integrates advanced functionality into an ultra-compact SOT-23-5 package, making it ideal for space-constrained applications such as IoT devices, portable electronics, and automotive systems.

At its core, the MIC842HYC5-TR operates by continuously monitoring the input voltage (VDD) and asserting a reset signal when the voltage falls below a predefined threshold. This threshold is factory-set to precise levels, ensuring high accuracy and eliminating the need for external components, which simplifies design and reduces board space. The device features a push-pull output stage, which provides a strong, low-impedance drive capability without requiring a pull-up resistor. This results in improved noise immunity and faster response times compared to open-drain configurations, enhancing system reliability during power-up, power-down, or brownout conditions.

Key specifications include a low quiescent current of just 3.5 µA (typical), making it suitable for battery-powered applications where power efficiency is critical. The MIC842HYC5-TR supports a wide operating voltage range from 1.6V to 5.5V, accommodating various logic levels and power sources. Additionally, its industrial temperature range (-40°C to +85°C) ensures robust performance across diverse environments.

Designers benefit from its instantaneous response to undervoltage events, with a typical reset timeout period of 40 ms, ensuring microcontrollers remain in a safe state until power stabilizes. The push-pull output actively drives the reset line high or low, eliminating ambiguity and preventing false triggering.

ICGOODFIND: The Microchip MIC842HYC5-TR voltage supervisor is an efficient, compact solution for power management, combining precision monitoring, low power consumption, and a push-pull output for superior reliability in modern electronic systems.

Keywords: Voltage Supervisor, Push-Pull Output, Undervoltage Protection, Low Power Consumption, Reset IC.