P3902

PRODUCT DATA SHEET ADSL Transformer Features ∗ ∗ ∗ ∗ ∗ ∗ ∗ Lead-free (Pb-free) Low Distortion IEC 950 and UL 60950 Certified UL Recognized Component Supplementary Insulation Surface Mount Industry Standard Footprint P3902 Applications ∗ Texas Instruments CO and CPE ∗ ADSL over POTS DESCRIPTION P3902 is designed for Central Office and Customer Premises ADSL over POTS applications using TI TNETD3000, and Central Office ADSL over POTS applications using TI TNETD4000. P3902 is certified to standards IEC 950 and UL 60950 for supplementary insulation, 250V working voltage. P3902 is a UL Recognized Component and is supported by an IEC CB Test Certificate. The part is completely lead-free and suitable for lead-free and conventional processing. The safety system yields very low transformer parasitics, ensuring that P3902 exhibits excellent frequency response and balance; in combination with its good harmonic distortion performance, P3902 is ideally suited to low cost yet demanding ADSL applications. ETALDOC 755/6 Page 1 of 4 January 2004 P3902 SPECIFICATIONS Electrical Typical values at T = 25ºC, unless otherwise stated. Parameter Inductance Leakage inductance Interwinding capacitance DC resistance Turns ratio Voltage isolation (1) Conditions 10kHz 100mV 1-4 100kHz, 100mV Pins 1-4 (link 7-10) 100kHz 100mV 1-10 1-4 7-10 1-4 : 10-7 50Hz DC (1,4 : 7,10) Ambient temperature Min 1.42 1.93 2.12 3.0 Typ 1.50 20 1.95 - Max 1.58 15 30 1.6 0.7 1.97 - Units mH µH pF Ω Ω kVrms kV Operating range: Functional Storage Notes -40 -40 - +85 +85 ºC ºC 1. Components are 100% tested at 3.25kV DC. ETALDOC 755/6 Page 2 of 4 January 2004 P3902 CONSTRUCTION Dimensions Fig. 1 17.15 max (0.67) 13.0 (0.51) Connections Fig. 2 15.40 (0.606) 2,50 (0.098) 12.9 max (0.51) 0.7 (0.03) 2,5 (0.10) CHAMFE R ON BOBB IN 12.2 max (0.48) 1.95 : 1 T erminals finished: S nAg Dimensions shown are in millimetres (inches). SAFETY Constructed in accordance with IEC 60950-1, EN 60950-1 and UL 60950-1, supplementary insulation, 250V maximum working voltage, flammability class V-0. Installation requirements should be observed whereby a minimum of 1.0mm creepage and 1.5mm clearance is maintained between the ferrite core and accessible conductive parts in the host equipment. ABSOLUTE MAXIMUM RATINGS (Ratings of components independent of circuit). Short term isolation voltage (1s) Storage temperature Reflow temperature (10s) 2.12kVrms, 3.0kVDC -40ºC to +85ºC 260ºC ETALDOC 755/6 Page 3 of 4 January 2004 0.70 (0.028) 0.80 (0.032) P3902 CERTIFICATION Certified by BSI to IEC 950:1991/A4:1996 (IEC CB Test Certificate No. GB518W) sub-clauses 1.5, 1.5.1, 1.5.3, 2.2, 2.2.2, 2.2.3, 2.2.4, 2.9.2, 2.9.3, 2.9.4, 4.4, 4.4.3.2 (class V-0) and 5.3 for a maximum working voltage of 250Vrms, nominal mains supply voltage not exceeding 300Vrms and a maximum operating temperature of +85ºC in Pollution Degree 2 environments, supplementary insulation, clearance greater than 2.0mm, creepage greater than 2.5mm, distance through solid insulation greater than 0.4mm. Recognized under the Component Recognition Program of Underwriters Laboratories Inc. to US and Canadian requirements CAN/CSA C22.2 No. 60950-1-03/UL60950-1, First Edition, based on IEC 60950-1, First Edition, maximum working voltage 250Vrms, Pollution Degree 2, supplementary insulation. UL File number E203175. Additionally, Profec Technologies certifies all transformers as providing voltage isolation of 2.12kVrms, 3kV DC minimum. All shipments are supported by a Certificate of Conformity to current applicable safety standards. COPYRIGHT ETAL and P3902 are Trade Marks of Profec Technologies Ltd. The Trade Mark ETAL is registered at the UK Trade Marks Registry. 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. © 2000 – 2004 Profec Technologies Ltd. Reproduction prohibited. E203175 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 ISO 9001 FM 25326 ETALDOC 755/6 Page 4 of 4 January 2004