| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact |
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SI4700DYQ2 Datasheet Argentina: see South America Australia: 3 Figtree Drive, HOMEBUSH, NSW 2140, Tel. +61 2 9704 8141, Fax. +61 2 9704 8139 Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. +43 1 60 101 1248, Fax. +43 1 60 101 1210 Belarus: Hotel Minsk Business Center, BId. 3, r. 1211, Volodarski Str. 6 220050 MINSK, Tel. +375 172 20 0733, Fax. +375 172 20 0773 Belgium: see The Netherlands Brazil: see South America SI4700DYQ2 Price The same circuit also provides a power-down sequence. When the input voltage falls below U3's voltage threshold, the ground signal is re-applied to the common track control. This pulls the track inputs to zero volts, forcing the output of each module to follow, as shown in ' ; . ' . In order for a simultaneous power-down to occur, the track inputs must be pulled low before the input voltage has fallen below the modules' undervoltage lockout. This is an important constraint. Once the modules recognize that a valid input voltage is no longer present, their outputs can no longer follow the voltage applied at their track input. During a power-down sequence, the fall in the output voltage from the modules is limited by the maxcmum output capacitance and the Auto-Track slew rate. If the Track pin is pulled low at a slew rate greater than l V/ms, the discharge of the output capacitors will induce large currents which could exceed the peak current rating of the module. This will result in a reduction in the maximum allowable output capacitance as listed in the Electrical Characteristics table. When controlling the Track pin of the PTH12020W using a voltage supervisor lC, the slew rate is increased, therefore Comax is reduced t0 6600 vcF. SI4700DYQ2 on stock All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. HSA (1999) C.O.P : OEL 400ppm (1600mg/m3) 8h TWA HSA (1999) C.O.P : OEL 500ppm (2000mg/m3) 15 min exposure limit. In circumstances where there is a potential for prolonged or repeated skin contact, the use of polyvinyl chloride, polyethylene or nitrile rubber gauntlets or equivalent solvent resistant gloves is recommended. |
