What the MAX6841FUKD3+ is and where it fits
The Analog Devices MAX6841FUKD3+ is a Simple Reset/Power-On Reset IC that monitors a single voltage rail and asserts a reset signal when the supply drops below its 1.05V threshold. It delivers both active-high and active-low push-pull outputs, so it can drive reset inputs of either polarity without an external inverter. The 150µs typical reset timeout holds the processor in reset long enough for the supply to stabilise after power-up. This part is used in low-voltage core monitoring for MCUs, FPGAs, and DSPs in industrial control, telecom infrastructure, and embedded systems where the monitored rail is around 1.05V.
1.05V threshold — what it means for the BOM
The 1.05V threshold monitors a single voltage rail.
Reset timeout and output drive
The 150µs typical reset timeout is a relatively short delay — suitable for fast-booting processors that do not need a long hold-off after power-good. The push-pull outputs source and sink current directly, eliminating the need for an external pull-up resistor on the reset line. Both active-high and active-low signals are available from the same device, which simplifies board layout when the processor expects one polarity and a peripheral expects the other.
Package and temperature grade
Housed in a SOT-23-5 package, this part takes minimal board area and is suited for dense PCB layouts. The -40°C to 85°C operating range covers industrial environments.
Lifecycle and sourcing reality
The MAX6841FUKD3+ carries an Active lifecycle status and is ROHS3 compliant.