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TLV3501 Datasheet(PDF) 10 Page - Texas Instruments |
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TLV3501 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 24 page V + V (V - TH OS HYST ) / 2 V + V TH OS V + V + TH OS (V HYST ) / 2 Time (2 ms/div) Output Voltage Input Voltage C030 TLV3691 SBOS694 – DECEMBER 2013 www.ti.com APPLICATION INFORMATION The TLV3691 comparators feature rail-to-rail inputs and outputs on supply voltages as low as 0.9 V. The push- pull output stage is optimal for reduced power budget applications and features no shoot-through current. Low minimum supply voltages, common-mode input range beyond supply rails, and a typical supply current of 75 nA make the TLV3691 an excellent candidate for battery-operated and portable, handheld designs. COMPARATOR INPUTS The TLV3691 is a rail-to-rail input comparator, with an input common-mode range that exceeds the supply rails by 100 mV for both positive and negative supplies. The device is designed to prevent phase inversion when the input pins exceed the supply voltage. Figure 27 shows the device response when input voltages exceed the supply, resulting in no phase inversion. Figure 27. No Phase Inversion: Comparator Response to Input Voltage (Propagation Delay Included) EXTERNAL HYSTERESIS The device hysteresis transfer curve is shown in Figure 28. This curve is a function of three components: VTH, VOS, and VHYST. • VTH is the actual set voltage or threshold trip voltage. • VOS is the internal offset voltage between VIN+ and VIN–. This voltage is added to VTH to form the actual trip point at which the comparator must respond in order to change output states. • VHYST is the internal hysteresis (or trip window) that is designed to reduce comparator sensitivity to noise (17 mV for the TLV3691). Figure 28. Hysteresis Transfer Curve 10 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: TLV3691 |
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