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TPS22954DSQR Datasheet(PDF) 30 Page - Texas Instruments |
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TPS22954DSQR Datasheet(HTML) 30 Page - Texas Instruments |
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30 / 51 page  IN IN BIAS EN SNS OUT OUT PG CT GND PAD CL RSNS1 RSNS2 Rpullup CT PG TPS22953/54 REN1 REN2 IN IN BIAS EN SNS OUT OUT PG CT GND PAD Power Supply CL RSNS1 RSNS2 CT TPS22953/54 REN1 REN2 System Module 1 System Module 2 CIN 30 TPS22954, TPS22953 SLVSCT5D – MARCH 2015 – REVISED SEPTEMBER 2016 www.ti.com Product Folder Links: TPS22954 TPS22953 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Application Information (continued) 10.1.3 Automatic Power Sequencing The PG pin of the TPS22953/54 allows for automatic sequencing of multiple system rails or loads. The accurate SNS voltage monitoring ensures the first rail is up before the next starts to turn on. This approach provides robust system sequencing and reduces the total inrush current by preventing overlap. Figure 60 shows how two rails can be sequenced. There is no limit to the number of rails that can be sequenced in this way Figure 60. Power Sequencing with PG Control Schematic |
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