TIME

HYSTERESIS

(DEAD) BAND

POSITIVE

TRIP POINTS

NEGATIVE

TRIP POINTS

V

+

GND

EXAMPLE 1

EXAMPLE 2

LMP7300

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SNOSAT7G – AUGUST 2007 – REVISED OCTOBER 2015

Feature Description (continued)

Figure 22. Output Response With Input Noise Less than Hysteresis Band

7.3.3.1 How Much Hysteresis Is Correct?

An effective way of determining the minimum hysteresis necessary for clean switching is to decrease the amount

of hysteresis until false triggering is observed, and then use a multiple of say three times that amount of

potentiometers. For applications near or above 100°C, TI recommends a minimum of 5-mV hysteresis due to

peaking of the LMP7300 noise sensitivity at high temperatures.

7.4 Device Functional Modes

The LMP7300 device may be used as a voltage reference or as a comparator with HIGH and LOW output states.

A LOW output will occur when the noninverting input (INP) is less than the inverting input (INN). A HIGH output

will occur when the noninverting input (INP) is greater than the inverting input (INN).

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