Maxim Integrated MAX6387XS28D2+T Voltage Supervisor

The MAX6387XS28D2+T from Maxim Integrated is a robust voltage supervisor IC designed to ensure reliable operation of microprocessors (µPs), microcontrollers (MCUs), and other voltage-sensitive digital systems. This compact, high-precision device is an essential component for applications requiring strict voltage monitoring to prevent data corruption, erratic operation, or system failure due to out-of-tolerance power supply voltages.

With a nominal threshold voltage of 2.8V, the MAX6387XS28D2+T actively monitors the supply voltage (VCC) and provides a reset signal to the host system whenever VCC falls below the threshold. The reset signal remains asserted for a minimum reset timeout period after VCC rises above the threshold, ensuring the system has adequate time to stabilize before resuming operation. This feature is crucial for systems that require a stable power-up sequence, such as embedded systems, portable devices, and communication equipment.

Key features of the MAX6387XS28D2+T include:

• Factory-set reset threshold voltage of 2.8V, tailored for 3V-powered systems.
• Low supply current, making it suitable for battery-operated devices.
• Guaranteed reset valid to VCC = 1V, ensuring system protection even during low-voltage conditions.
• Immunity to short VCC transients, preventing false triggering of the reset signal.
• Push-pull active-low RESET output, providing a direct interface to the system's reset circuitry without the need for external components.

This voltage supervisor comes in a compact, surface-mount SOT-323 package, which is ideal for space-constrained applications. The MAX6387XS28D2+T is also fully specified over the extended industrial temperature range of -40°C to +85°C, allowing it to operate reliably in harsh environments.

Whether you are designing consumer electronics, industrial control systems, or portable medical devices, the MAX6387XS28D2+T from Maxim Integrated provides a simple and effective solution for voltage supervision, enhancing the overall reliability and safety of your electronic systems.