When to and why use reset and supervisor ICs?

TN0941

4/16

DocID023775 Rev 1

1

When to and why use reset and supervisor ICs?

The reset and supervisor functions should be used in complex systems to ensure proper

wake-up during power-up, and/or to reboot the system when an application has failed or

frozen.

With the increased development and utilization of microprocessing units (example, 8-bit low

cost, 32-bit low power, 64-bit high performance, multi-core) in all kind of applications, there

is an ever-increasing need for reset and supervision functions.

Reset and supervisor ICs are like the lifeguard of a system: they protect against

software and power failure. Using them makes the final product more robust,

whatever its complexity, and increases the end-users perception of quality.

2

What is the difference between a voltage detector

and a reset IC?

What are the following core features of reset and supervisor ICs used for?). Voltage

reset IC (see Figure 1).

Figure 1. Block diagram of (1) Voltage detector and (2) Reset IC

Suggested products

•

For further information on voltage detectors, please refer to STM1061

•

For further information on reset ICs, please refer to STM809 and STM1001