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TPS3805H33-Q1 Datasheet(PDF) 10 Page - Texas Instruments |
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TPS3805H33-Q1 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 25 page 7 6 5 4 0 0.1 0.2 0.3 0.4 0.5 0.6 8 9 10 0.7 0.8 0.9 1 3 2 1 0 V DD – Threshold Overdrive Voltage – V 7 6 5 4 0 0.1 0.2 0.3 0.4 0.5 0.6 8 9 10 0.7 0.8 0.9 1 3 2 1 0 SENSE Threshold Overdrive Voltage – V – VDD or SENSE VIT Overdrive Voltage Transient Duration VDD TPS3803-01-Q1 SENSE _____ RESET GND VIN R1 R2 VIT[ = (1 + R1/R2)*1.226 Reset TPS3803-01-Q1 TPS3803G15-Q1, TPS3805H33-Q1 SGLS228C – DECEMBER 2003 – REVISED SEPTEMBER 2015 www.ti.com Feature Description (continued) Figure 13. Using Adjustable Version 8.3.2 Transient Immunity The TPS380x-Q1 devices are immune to short negative transients on the VDD and SENSE pins. Sensitivity to transients is dependent on threshold overdrive as shown in Figure 15 and Figure 16. These graphs show the duration that the transient is below VIT compared to the magnitude of the voltage drop below VIT, called the threshold overdrive voltage. Any combination of transient duration and overdrive voltage which lies above the curves will result in RESET being asserted low. Any transient which lies below the curves will be ignored by the device. Figure 14. Overdrive Voltage Figure 15. Minimum Pulse Duration at VDD vs VDD Figure 16. Minimum Pulse Duration at Sense vs Sense Threshold Overdrive Voltage Threshold Overdrive Voltage 10 Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1 |
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