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TPS3779ADBVT Datasheet(PDF) 10 Page - Texas Instruments |
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TPS3779ADBVT Datasheet(HTML) 10 Page - Texas Instruments |
10 / 28 page SENSE1 GND VDD OUT1 VIT+ SENSE2 OUT2 TPS3779 SENSE1 GND VDD OUT1 VIT+ SENSE2 OUT2 TPS3780 TPS3779, TPS3780 SBVS250 – APRIL 2015 www.ti.com 8 Detailed Description 8.1 Overview The TPS3779 and TPS3780 are a family of small, low quiescent current (IDD), dual-channel voltage detectors. These devices have high-accuracy, rising and falling input thresholds, and assert the output as shown in Table 1. The output (OUTx pin) goes low when the SENSEx pin is less than VIT– and goes high when the pin is greater than VIT+. The TPS3779 and TPS3780 offer multiple hysteresis options from 0.5% to 10% for use in a wide variety of applications. These devices have two independent voltage detection channels that can be used in systems where multiple voltage rails are required to be monitored, or where one channel can be used as an early warning signal and the other channel used as the system reset signal. Table 1. TPS3779, TPS3780 Truth Table CONDITIONS OUTPUT SENSE1 < VIT– OUT1 = low SENSE2 < VIT– OUT2 = low SENSE1 > VIT+ OUT1 = high SENSE2 > VIT+ OUT2 = high 8.2 Functional Block Diagrams Figure 20. TPS3779 Block Diagram Figure 21. TPS3780 Block Diagram 10 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Product Folder Links: TPS3779 TPS3780 |
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