TLV3012 datasheet(23/39 Pages) TI

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10 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI’s customers are responsible for

determining suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

10.1 Application Information

The TLV301x-Q1 and TLV301xB-Q1 comparator family with on-chip 1.242-V series reference with the choice of

either open-drain or push-pull output stages.

A typical supply current of 2.4 μA and small packaging combine with 1.65-V supply requirements to make the

TLV301xB-Q1 devices optimal for battery and portable designs.

Figure 10-1 shows the typical connections for the TLV3012-Q1 device.

REF

TLV3012-Q1

V+

0.01 µF

10 µF

OUT

IN–

IN+

V–

Figure 10-1. Basic Connections

10.1.1 External Hysteresis

Comparator inputs have no noise immunity within the range of the specified offset voltage. For noisy input

signals, the comparator output may display multiple switching as input signals move through the switching

threshold. The typical comparator threshold of the TLV3012-Q1 device is ±0.5 mV. To prevent multiple switching

within the comparator threshold of the TLV3012-Q1 device, external hysteresis may be added by connecting

a small amount of feedback to the positive input. Figure 10-2 shows a typical topology used to introduce

hysteresis, described by Equation 1.

HYST

V+ × R1

R1 + R2

(1)

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TLV3011-Q1, TLV3012-Q1, TLV3011B-Q1, TLV3012B-Q1

SBOS551C – MARCH 2011 – REVISED APRIL 2023

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Product Folder Links: TLV3011-Q1 TLV3012-Q1 TLV3011B-Q1 TLV3012B-Q1

TLV3012 Folha de dados(PDF) 23 Page - Texas Instruments