The MAX636XCSA+T is a precision, low-power microprocessor (µP) supervisory circuit designed and manufactured by Maxim Integrated. This device is an essential component for monitoring power supplies in µP and digital systems, providing a secure method to ensure that the system's power conditions are within acceptable operating limits.
The MAX636XCSA+T offers a factory-trimmed reset threshold voltage, which is vital for maintaining system integrity during power-up, power-down, and brown-out conditions. When the monitored power supply voltage drops below the preset threshold, the reset output is asserted, which remains active until the voltage recovers to an acceptable level, plus a reset timeout period to ensure system stability.
This voltage detector comes in a compact 8-pin SOIC package, making it suitable for space-constrained applications. The device operates over a wide temperature range of -40°C to +85°C, ensuring reliability across various environmental conditions. The MAX636XCSA+T is also characterized by its low supply current, which is typically only 1.2µA at +25°C, making it an excellent choice for battery-powered and portable applications where power efficiency is crucial.
The MAX636XCSA+T features an active-low RESET output, which is guaranteed to be in the correct state for VCC down to 1.0V. The device also provides a debounced manual reset input, allowing for a system reset to be manually triggered when necessary. Its reset timeout period is externally adjustable by connecting a capacitor to the CTR pin, providing designers with flexibility in configuring the system's reset behavior.
In summary, Maxim Integrated's MAX636XCSA+T voltage detector is a reliable and versatile solution for power monitoring in digital systems. Its precision voltage monitoring, low power consumption, small footprint, and manual reset feature make it an excellent choice for a wide range of applications, including microprocessor systems, computers, controllers, and intelligent instruments.