Supervisory IC offers glitch-free power-up for 1V IoT systems

June 24, 2021 // By Rich Pell
Supervisory IC offers glitch-free power-up for 1V IoT systems
Chipmaker Maxim Integrated Products has announced what it says is the industry's first glitch-free supervisor that eliminates power-up errors in low-voltage IoT applications.

The MAX16162 nanoPower supervisor IC with glitch-free power-up is offered as the first such device to fully assert a system reset through the entire system power supply ramp, eliminating low-voltage glitches during power-up and delivering higher system reliability. The device is designed to address issues with traditional supervisory ICs, which show unreliable outputs at the lower input voltages of 1V and below of microcontrollers that are increasingly being used by IoT system designers.

This leaves systems vulnerable to faulty power-up, causing the MCU to wake up in an undefined state with incorrect I/O outputs, wrong data reads, or other errors. The MAX16162, part of the company's Essential Analog family of robust protection ICs, eliminates glitches until the input voltage achieves the appropriate voltage threshold.

Eliminating glitches, says the company, improves reliability not only for IoT systems, but also for portable medical monitoring devices, wearables, base stations, programmable logic controllers, and automation controls.

"ICs operating under 1V offer tremendous advantages for power savings and IoT proliferation but come with unacceptable reliability risks when not designed properly," says Elnaz Shayesteh, business manager for the Core Products Group at Maxim Integrated. "We developed the industry's first low-voltage glitch-free supervisory IC so system developers may eliminate the errors observed during power-up. No other company offers glitch-free capability at these voltages, further solidifying Maxim Integrated's innovation leadership in robust protection technology."

The MAX16162 draws only 825nA, so that it provides robust protection without exacting a toll on limited power budgets. With a package size of 1.06 x 0.73 mm, the device is 23% smaller than the closest competitive solution and helps developers save board space, says the company.

Key advantages of the MAX16162 are offered as:

  • Glitch Free at Low Voltages : Eliminates system errors by asserting a consistent, glitch-free reset during power-up, even for inputs below 0.6V
  • nanoPower: Draws only 825nA
  • Smallest Size : 23% smaller than closest competition

The MAX16162 is available

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