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TPS3831G12DQNT Fiches technique(PDF) 11 Page - Texas Instruments |
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TPS3831G12DQNT Fiches technique(HTML) 11 Page - Texas Instruments |
11 / 24 page 4.7 PH 10 PF 10 PF 5 k: L VIN VOUT RI GND FB EN One-Cell Alkaline VDD GND RESET TPS3839A09 3.3 V at 40 mA TPS61261 TPS3831 TPS3839 www.ti.com SBVS193B – JUNE 2012 – REVISED APRIL 2013 APPLICATION EXAMPLE: SINGLE ALKALINE CELL MONITORING Low operating voltage and threshold options make the TPS383x well-suited for monitoring single-cell, alkaline- battery applications. Figure 18 shows the TPS3839A09 used to disable a boost converter when the cell voltage reaches 0.9 V, which is the end of the discharge voltage for a single alkaline battery cell. When the cell voltage reaches 0.9 V, the TPS61261 enable pin is driven low. This setting disables the TPS61261 and places it in a low-current shutdown state. The combination of the TPS3839 and TPS61261 consumes only 250 nA (typical) from the discharged battery. Figure 18. Disabled Boost Converter Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: TPS3831 TPS3839 |
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