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KMP-78253 Datasheet(PDF) 1 Page - Murata Power Solutions Inc. |
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KMP-78253 Datasheet(HTML) 1 Page - Murata Power Solutions Inc. |
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1 / 5 page  KMP_78253C_D05 Page 1 of 5 78253 Series MAX253 Compatible Converter Transformers www.murata-ps.com www.murata-ps.com/support For full details go to www.cd4power.com/rohs For full details go to www.murata-ps.com/rohs FEATURES n RoHS compliant n Maxim MAX253 compatible n 3.3V and 5V versions n Isolation to 4kVDC n Frequency range to 500kHZ n Toroidal construction n Industry-standard pinout n UL 94 V-0 package materials n Fully encapsulated n Low profile n Surface mount option n Industrial temperature range DESCRIPTION The 78253 series of 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. Surface-mount parts The surface-mount (M suffix) products are not recommended for new designs. For existing designs, however, Murata Power Solutions will continue to manufacture and fully support these parts. For recommended alternatives please refer to the 78253J Series datasheet. SELECTION GUIDE Order Code Input Voltage Output Voltage Max. Output Current Isolation Voltage Turns Ratio Package Style V V mA VDC 78253/35C 3.3 5.0 100 1500 1:2.27 DIL 78253/35MC SM 78253/55C 5.0 5.0 200 1500 1:1.31 DIL 78253/55MC SM 78253/35VC 3.3 5.0 100 4000 1:2.14 DIL 78253/35MVC SM 78253/55VC 5.0 5.0 200 4000 1:1.33 DIL 78253/55MVC SM ORDER CODE DETAILS Order Code Package Type Packaging Type Quantity 78253/XX(V)C 6 Pin DIL Tube 50 78253/XXM(V)C 6 Pin SM Tube 50 78253/XXM(V)C-R 6 Pin SM Tape & Reel 500 78253/35(M)C CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Primary Inductance, L P 100kHz, 250mV 0.30 0.38 0.46 mH Secondary Inductance, L S 100kHz, 250mV 1.60 2.00 2.40 mH Leakage Inductance, L L 100kHz, 250mV 0.30 1.00 μH Interwinding Capacitance, C WW 100kHz, 250mV 30 50 pF Primary D.C. Resistance, R DC >0.1VDC 0.40 1.00 Ω Volt-time Product, Et Pins 1/2 or 2/3 30 35 Vμs 78253/55(M)C CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Primary Inductance, L P 100kHz, 250mV 0.60 0.83 1.10 mH Secondary Inductance, L S 100kHz, 250mV 1.10 1.40 1.70 mH Leakage Inductance, L L 100kHz, 250mV 0.35 1.00 μH Interwinding Capacitance, C WW 100kHz, 250mV 30 50 pF Primary D.C. Resistance, R DC >0.1VDC 0.70 1.50 Ω Volt-time Product, Et Pins 1/2 or 2/3 40 50 Vμs 78253/35(M)VC CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Primary Inductance, L P 100kHz, 20mV 110 142 185 μH Secondary Inductance, L S 100kHz, 20mV 550 710 850 μH Leakage Inductance, L L 100kHz, 250mV 3.00 5.00 μH Interwinding Capacitance, C WW 100kHz, 250mV 4.20 8.00 pF Primary D.C. Resistance, R DC >0.1VDC 0.30 0.50 Ω Volt-time Product, Et Pins 1/2 or 2/3 18 22 Vμs 78253/55(M)VC CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Primary Inductance, L P 100kHz, 20mV 190 240 310 μH Secondary Inductance, L S 100kHz, 20mV 350 444 540 μH Leakage Inductance, L L 100kHz, 250mV 5.20 8.00 μH Interwinding Capacitance, C WW 100kHz, 250mV 4.20 8.00 pF Primary D.C. Resistance, R DC >0.1VDC 0.40 0.60 Ω Volt-time Product, Et Pins 1/2 or 2/3 25 28 Vμs All specifications typical at T A=25°C |
Similar Part No. - KMP-78253 |
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Similar Description - KMP-78253 |
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