Datenblatt-Suchmaschine für elektronische Bauteile |
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RT9553A Datenblatt(PDF) 10 Page - Richtek Technology Corporation |
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RT9553A Datenblatt(HTML) 10 Page - Richtek Technology Corporation |
10 / 12 page RT9553A 10 DS9553A-00 September 2014 www.richtek.com © Copyright 2014 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. RESET/Timer The RESET pin is an open-drain output, and requires to be connected to a pull-up resistor. When over-voltage or under-voltage occurs, the RESET pin will be pulled low and resume to high with a hysteresis. Users can set the deglitch time of RESET by adjusting the TIMER pin, and there are two choices of deglitch time, 15 μs and 5μs. When the RTIMER is 375kΩ, the deglitch time is 15 μs; when the RTIMER is 125kΩ, the deglitch time is 5 μs. Users can choose a suitable deglitch time to avoid protection false triggering. Figure 4. OVP and RESET Indicator Illustrator VCSP x (1/9) EN VCC 3ms OVSET RESET 92%_OVSET Recovery Hysteresis Range PROCHOT The PROCHOT pin is an open-drain output, and requires to be connected to a pull-up resistor. When over-current is detected, PROCHOT will be pulled low within 50 μs for 15ms. If over-current condition keeps longer than 15ms, PROCHOT maintains low status until over-current protection is released. Figure 3, Figure 4, Figure5 illustrates RESET and PROCHOT indicator signals. Figure 3. RESET and PROCHOT Indicator Illustration EN VCC 3ms ILIM ISENSE 15ms >15ms PROCHOT |
Ähnliche Teilenummer - RT9553A |
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Ähnliche Beschreibung - RT9553A |
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