TLV1702-Q1 Datasheet, PDF (12/23 Pages) Texas Instruments – TLV170x-Q1 2.2-V to 36-V, microPower Comparator

TLV1702-Q1, TLV1704-Q1
SLOS890A – NOVEMBER 2015 – REVISED DECEMBER 2015
9 Application and Implementation
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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.
5V
5V
Vin
Rx
100 kŸ
-
+V
+
5V
Rp
5 kŸ
Vout
Ry
100 kŸ
Rh
576 kŸ
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
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