User guide

ManualsBrandsRainbow Electronics ManualsSensorsMAX6764

MAX6754–MAX6764

Low-Power, Single/Dual-Voltage Window

Detectors

______________________________________________________________________________________ 15

Applications Information

Microprocessor Monitoring

Figure 8 shows a microprocessor monitoring circuit. An

overvoltage condition on either the core or I/O supply

turns the SCR on, blowing the fuse to disconnect the

circuit from the power source. An optional capacitor

(C1) on the gate of the SCR provides additional tran-

sient immunity against nuisance trips.

MAX6760

GND

SET

CC2

OVLATCH

PUSH BUTTON

RESET

NMI

I/O

DC-DC

CONVERTER

CORE

DC-DC

CONVERTER

µP

I/O

CORE

FUSE

UNREGULATED

POWER SOURCE

SCR

100kΩ 100kΩ

100kΩ

*C1

1µF

*OPTIONAL.

Figure 8. Microprocessor Monitoring

Selector Guide

PUSH-PULL

RESET

PUSH-PULL

RESET

OPEN-DRAIN

RESET

PUSH-PULL

OPEN-DRAIN

PUSH-PULL

OPEN-DRAIN

MAX6754 X —

—

——

—

——

MAX6755 — X

—

——

—

——

MAX6756 ——

——

—

MAX6757 ——

—

X —

—

— X

MAX6758 ——

—

— X

—

— X

MAX6759 ——

—

——

— X

MAX6760 ——

—

X —

—

— X

MAX6761 ——

—

— X

—

— X

MAX6762 ——

—

——

— X

MAX6763 ——

—

X —

—

X —

MAX6764 ——

—

— X

—

— X