P2480 ETAL | Alldatasheet
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Technical content
ETALDOC 884/1 Page 1 of 3 June 2007 PRODUCT DATA SHEET DC-DC Converter Transformer P2480 Features Applications ∗ 1500Vrms Isolation ∗ DC-DC converters ∗ Surface Mount ∗ Isolated RS-485/RS-232 interface ∗ RoHS compliant ∗ MAX253/MAX845 circuits ∗ Wide operating temperature ∗ Power across safety barrier
DESCRIPTION
P2480 is a voltage isolation transformer for use with low power DC-DC converter circuits. P2480 is designed for applications using Maxim MAX253 and MAX845, and operates over a wide temperature range -40ºC to +85ºC. P2480 is compliant with RoHS Directive 2002/95/EC, and suitable for lead-free and conventional placement and reflow.
ETALDOC 884/1 Page 2 of 3 June 2007 SPECIFICATIONS Electrical Values at T = 25ºC, unless otherwise stated. Parameter Conditions Min Typ Max Units Primary Inductance 10kHz 250mV 1-3 400 - - µH Turns ratio 6-4 CT : 1-3 CT - 1.3 - - DC resistance 1-3 6-4 0.95 1.25 Ω Ω ET product 1-3 - 27 - Vµs Dielectric strength Pri : sec 1500 - - Vrms Operating range Ambient temperature -40 - +85 ºC CONSTRUCTION Dimensions shown are in millimetres (inches). Terminal plating JESD97 category = e2, tin-silver over nickel barrier. Recommended reflow solder profile: 2 minutes @ 150-200ºC, 10 seconds @ 260ºC; time above 217ºC 60 seconds maximum Connections Fig . 2 Dimensions Fig . 1 8.6 max 7.6 max 7.1 max 0.60 5.3 max 5.08 ETAL
ETALDOC 884/1 Page 3 of 3 June 2007 COPYRIGHT ABSOLUTE MAXIMUM RATINGS (Ratings of components independent of circuit). Short term isolation voltage (1s) 1500Vrms Storage temperature -40ºC to +100ºC Operating temperature -40ºC to +85ºC ETAL and P2480 are Trade Marks of Profec Technologies Ltd. The Trade Mark ETAL is registered at the UK Trade Marks Registry. MAX253 and MAX845 are trademarks of Maxim Integrated Products, Inc. Profec Technologies Ltd is the owner of the design right under the Copyright Designs and Patents Act 1988 and no rights or licences are hereby granted or implied to any third party. © 2007 Profec Technologies Ltd. Reproduction prohibited. Soldering temperature profile peak 260ºC, 10s ETAL Group Oy, Kuormatie 14, FIN-03101, Nummela Telephone: +358 (0)20 7500 330 Fax: +358 (0)20 7500 333 Website: www.etalgroup.com Email: etalgroup@egruppen.com FM 25326 ISO 9001