Datenblatt-Suchmaschine für elektronische Bauteile |
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SS32 Datenblatt(PDF) 2 Page - Orister Corporation |
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SS32 Datenblatt(HTML) 2 Page - Orister Corporation |
2 / 11 page Page No. : 2/11 ON OUTPUT INPUT U1 RS6508‐ADS 2 3 8 5 4 7 6 IN SW SS FB GND EN COMP C4 0.1uF C2 22uF/6.3V C1 10uF/35V C5 10nF L1 15uH D1 B340A R3 5.6KΩ R1 25.8KΩ 1% R2 10KΩ 1% C6 (Optional) C3 8.2nF OFF 4.75V to 21V 3.3V/2A CERAMIC x2 CERAMIC x2 Pin Assignments MSOP‐10(EP) SOP‐8 PACKAGE PIN SYMBOL DESCRIPTION 1 ‐ NC No Connect. 2 1 BS Bootstrap. This capacitor (C5) is needed to drive the power switch’s gate above the supply voltage. It is connected between the SW and BS pins to form a floating supply across the power switch driver. The voltage across C5 is about 5V and is supplied by the internal +5V supply when the SW pin voltage is low. 3 ‐ NC No Connect. 4 2 IN Supply Voltage. The RS6515 operates from a 4.75V to 20V unregulated input. C1 is needed to prevent large voltage spikes from appearing at the input. 5 3 SW Power Switching Output. SW is the switching node that supplies power to the output. Connect the output LC filter from SW to the output load. Note that a capacitor is required from SW to BS to power the high‐side switch. 6,11 4 GND Ground. 7 5 FB Feedback Input. FB senses the output voltage and regulates it. Drive FB with a resistive voltage divider from the output voltage to ground. The feedback threshold is 0.92V. See Setting the Output Voltage. 8 6 COMP Compensation Node. COMP is used to compensate the regulation control loop. Connect a series RC network from COMP to GND. In some cases, an additional capacitor from COMP to GND is required. See Compensation. 9 7 EN Enable Input. EN is a digital input that turns the regulator on or off. Drive EN high to turn on the regulator, drive it low to turn it off. For automatic startup, leave EN unconnected. MSOP‐10(EP) / SOP‐8 10 8 SS Soft‐Start. Connect SS to an external capacitor to program the soft‐start. If unused, leave it open. DS‐RS6515‐08 JULY, 2010 www.Orister.com |
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Ähnliche Beschreibung - SS32 |
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