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TPS7A6550-Q1 Fiches technique(PDF) 10 Page - Texas Instruments |
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TPS7A6550-Q1 Fiches technique(HTML) 10 Page - Texas Instruments |
10 / 26 page ON OFF 9.2 9.6 Hysteresis V (V) IN ON OFF 7.8 7.9 Hysteresis V (V) IN VIN(POWERUP) VIN VOUT 5V or 3.3V 0 0 TPS7A6533-Q1, TPS7A6550-Q1 SLVSA98D – MAY 2010 – REVISED DECEMBER 2015 www.ti.com Feature Description (continued) Figure 15. Power-Up Sequence 7.3.2 Charge-Pump Operation These devices have an internal charge pump that turns on or off depending on the input voltage and the output current. The charge pump switching circuitry does not cause conducted emissions to exceed required thresholds on the input voltage line. For a given output current, the charge pump stays on at lower input voltages and turns off at higher input voltages. The charge-pump switching thresholds are hysteretic. Figure 16 and Figure 17 show typical switching thresholds for the charge pump at light (IOUT < approximately 2 mA) and heavy (IOUT > approximately 2 mA) loads, respectively. Figure 16. Charge-Pump Operation at Light Loads Figure 17. Charge-Pump Operation at Heavy Loads 10 Submit Documentation Feedback Copyright © 2010–2015, Texas Instruments Incorporated Product Folder Links: TPS7A6533-Q1 TPS7A6550-Q1 |
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