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KMP_7625XEN Datasheet(PDF) 1 Page - Murata Manufacturing Co., Ltd. |
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KMP_7625XEN Datasheet(HTML) 1 Page - Murata Manufacturing Co., Ltd. |
1 / 4 page KMP_7625XENC_B03 Page 1 of 4 Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232 www.murata-ps.com 76250ENC, 76253/XXENC EN Approved MAX250/251/253 Compatible Converter Transformers For full details go to www.murata-ps.com/rohs FEATURES RoHS compliant Maxim MAX250/MAX251/MAX253 compatible BS EN 60950 approved Isolation to 6kVDC Toroidal construction Industry-standard pinout UL 94 V-0 package materials Fully encapsulated Compatible with RoHS soldering systems Backward compatible with Sn/Pb soldering systems DESCRIPTION The 76250ENC converter transformer is specifically designed for use with Maxim chipsets to provide isolated RS232 interfaces. A carefully controlled turns ratio ensures consistent performance whilst a toroidal construction minimises EMI. The 76253/XXENC converter transformers are specifically designed for use with the MAX253 chip set to provide isolated power supplies. The 5V version can supply 1W and the 3.3V version can supply 500mW. A centre tapped secondary winding allows for full bridge, half bridge or voltage doubling. The devices are fully approved to BS EN 60950 for use in telecoms applications. SELECTION GUIDE Order Code Input Voltage Output Voltage Max. Output Current Isolation Voltage Turns Ratio V V mA VDC 76250ENC - - - 6000 1CT:1 76253/35ENC 3.3 5.0 100 6000 1:√5 76253/55ENC 5.0 5.0 200 6000 1:1.33 76250ENC CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Primary Inductance, L P (1&5) 10kHz, 100mV 1.0 2.0 2.5 mH Leakage Inductance, L L (1&5)2 100kHz, 100mV 35 40 μH Interwinding Capacitance, C WW (1&2) 100kHz, 100mV 1.5 3.0 pF D.C. Resistance, R DC (1&5) <0.1VDC 1.0 2.0 Ω Volt-time Product, E T (1&5) 50 Vμs 76253/35ENC CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Primary Inductance, L P (1&5) 100kHz, 250mV 140 200 μH Secondary Inductance, L S (2&6) 100kHz, 250mV 700 1000 μH Leakage Inductance, L L (1&5)2 100kHz, 250mV 5.0 7.0 μH Interwinding Capacitance, C WW (1&2) 100kHz, 250mV 2.7 3.5 pF D.C. Resistance, R DC (1&5) <0.1VDC 0.4 0.8 Ω Volt-time Product, E T (1&5) 25 35 Vμs 76253/55ENC CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Primary Inductance, L P (1&5) 100kHz, 250mV 80 150 μH Secondary Inductance, L S (2&6) 100kHz, 250mV 142 267 μH Leakage Inductance, L L (1&5)2 100kHz, 250mV 7.0 10.0 μH Interwinding Capacitance, C WW (1&2) 100kHz, 250mV 2.7 3.5 pF D.C. Resistance, R DC (1&5) <0.1VDC 0.5 0.9 Ω Volt-time Product, E T (1&5) 30 40 Vμs ABSOLUTE MAXIMUM RATINGS Operating free air temperature range 76250EN 0°C to 70°C Operating free air temperature range 76253/XXEN -40°C to 85°C Storage temperature range -50°C to 125°C Lead temperature 1.5mm from case for 10 seconds 300°C Peak current, I PK 76250EN 300mA Peak current, I PK 76253/XXEN 400mA Isolation voltage (flash tested for 1 second) 6000VDC SOLDERING INFORMATION3 Peak wave solder temperature 300˚C for 10 seconds Pin finish Matte tin All specifications typical at T A =25°C 1 Refer to mechanical dimensions for pin locations shown in brackets. 2 With pins 2 & 6 short circuited. 3 For further information, please visit www.murata-ps.com/rohs |
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