Multi-voltage supervisor for harsh environments
The Maxim Integrated MAX6761TALAD3 is a multi-voltage supervisor designed to monitor two voltage rails simultaneously, with a 5V adjustable threshold and a minimum reset timeout of 100ms. It provides both active-high and active-low reset outputs, configurable as open-drain or push-pull, giving flexibility for different system reset architectures. Rated for the full automotive temperature range of -40°C to 125°C and AEC-Q100 qualified, this part is built for under-hood, powertrain, and other harsh automotive environments where reliable power-on reset and brown-out detection are critical.
Reset timing and output flexibility
The 100ms minimum reset timeout ensures the system microcontroller or SoC has settled before de-asserting reset, a common requirement for automotive ECUs and safety-critical controllers. The ability to select active-high or active-low polarity, along with open-drain or push-pull output drive, means this supervisor can interface directly with a variety of reset input logic levels without external level shifters. Open-drain output allows wired-OR connection with other fault monitors.
Lifecycle and sourcing reality
The MAX6761TALAD3 is listed as Active in production with no end-of-life notice. For automotive BOMs requiring AEC-Q100 qualification, this part remains a current-design-in candidate.