Slew_rate_reduction_for_high_crryoacity_loads

Published:2009/7/24 5:36:00 Author:Jessie | From:SeekIC

Figure 8-50 shows a method for reducing the slew rate in the circuits of Figs. 8-48 and 8-49. Supply circuits in battery-operated equipment are often bypassed with large capacitors to reduce transients. If not properly switched, such filter capacitors can produce glitches at start-up. For example, the 100-μF load capacitance shown could easily produce a start-up current of 10 A (well beyond the capability of the regulator), and possibly prevent start-up. The circuit of Fig. 8-50 reduces start-up current to about 15 mA. LINEAR TECHNOLOGY, APPLICATION NorE 53, P. 3.



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