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20IMX4 Datasheet(PDF) 11 Page - Power-One |
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20IMX4 Datasheet(HTML) 11 Page - Power-One |
11 / 12 page ® IMX4 Series Data Sheet 4 Watt DC-DC Converters BCD20006-G Rev AC, 06-Jul-2012 Page 11 of 12 www.power-one.com Safety and Installation Instructions Installation Instruction Installation of the dc-dc converters must strictly follow the national safety regulations in compliance with the enclosure, mounting, creepage, clearance, casualty, markings and segregation requirements of the end-use application. Connection to the system shall be made via a printed circuit board; see Mechanical Data. The converters should be connected to a secondary circuit. Do not open the converter. Ensure that a converter failure does not result in a hazardous condition. To prevent excessive current flowing through the input lines in case of a short-circuit, an external fuse specified in table 6 should be installed in the non-earthed input supply line. Pin Allocation Fig. 18 Foot print 1 12 13 24 10013a Bottom view Table 12: Pin allocation for standard and option Z Pin Single-output models Dual-output models 2 Vi– Vi– 3 Vi– Vi– 10 n.c. -- 11 -- Vo– 14 Vo + Vo+ 16 Vo – Go 22 Vi+ Vi+ 23 Vi+ Vi+ Table 13: Pin allocation for option K Pin Single-output models Dual-output models 1 Vi+ Vi+ 2 n.c. -- 10 -- Go 11 -- Go 12 Vo – -- 13 Vo + Vo– 15 -- Vo+ 24 Vi– Vi– Standards and Approvals The converters are approved according to UL/CSA 60950,IEC 60950-1:2001 and IEC/EN 60950-1 2nd Edition. The converters have been evaluated for: • Building-in • Basic insulation input to output, based on their maximum input voltage • Pollution degree 2 environment • Connecting the input to a secondary circuit, which is subject to a maximum transient rating of 1500 V for 20IMX4 and 40IMX4, and 2000 V for 70IMX4 models. The converters are subject to manufacturing surveillance in accordance with the above mentioned standards and with ISO 9001:2000. Railway Applications To comply with railway standards, all components are coated with a protective lacquer (except option Z). Protection Degree The protection degree of the converters is IP 30, except open- frame models (option Z). Cleaning Liquids In order to avoid possible damage, any penetration of cleaning fluids should be prevented, since the power supplies are not hermetical sealed. However, open-frame models (option Z) leave the factory unlacquered; they may be lacquered by the customer, for instance together with the mother board. Cleaning agents are not permitted – except washing at room temperature with isopropyl alcohol. If necessary, the mother board must be cleaned, before fitting the open-frame converter. Note: Cleaning liquids may damage the adhesive joints of the ferrite cores. Isolation The electric strength test is performed in the factory as routine test in accordance with EN 50116 and IEC/EN 60950, and should not be repeated in the field. Power-One will not honor any warranty claims resulting from electric-strength field tests. Table 14: Electric strength test voltages Characteristic Input to output Unit 5IMX4 20/40IMX4 70IMX4 Factory test >1 s 0.77 1.2 1.5 kVAC Equivalent DC test voltage 1.0 1.5 2.0 kVDC Coupling capacitance 2.2 typ. 1.1 typ. 1.1 nF Insulation resist. (500 VDC) -- >100 >100 M Ω |
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