Vin

5 V

5 V

Rh

576 k

Ÿ

Rx

100 k

Ÿ

Ry

100 k

Ÿ

Vout

-

+

+V

5 V

Rp

5 k

Ÿ

TLV1702-Q1, TLV1704-Q1

SLOS890A – NOVEMBER 2015 – REVISED DECEMBER 2015

www.ti.com

9 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. Customers should

validate and test their design implementation to confirm system functionality.

9.1 Application Information

The TLV170x-Q1 device can be used in a wide variety of applications, such as zero crossing detectors, window

comparators, over and undervoltage detectors, and high-side voltage sense circuits.

9.2 Typical Application

Comparators are used to differentiate between two different signal levels. For example, a comparator

differentiates between an overtemperature and normal-temperature condition. However, noise or signal variation

at the comparison threshold causes multiple transitions. This application example sets upper and lower

hysteresis thresholds to eliminate the multiple transitions caused by noise.

Figure 20. Comparator Schematic with Hysteresis

9.2.1 Design Requirements

The design requirements are as follows:

•

Supply voltage: 5 V

•

Input: 0 V to 5 V

•

Lower threshold (VL) = 2.3 V ±0.1 V

•

Upper threshold (VH) = 2.7 V ±0.1 V

•

VH – VL = 2.4 V ±0.1 V

•

Low-power consumption

12

Submit Documentation Feedback

Copyright © 2015, Texas Instruments Incorporated

Product Folder Links: TLV1702-Q1 TLV1704-Q1