Datenblatt-Suchmaschine für elektronische Bauteile |
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SS25-A-A-A Datenblatt(PDF) 3 Page - Murata Power Solutions Inc. |
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SS25-A-A-A Datenblatt(HTML) 3 Page - Murata Power Solutions Inc. |
3 / 4 page SUPERSIP 8/98 REV C Page 3 Programming To program the SuperSIPTM for Vout<3.3, connect resistor across pins 8 (TRIM) and 1 (Vo). For Vout>3.3, resistor is connected across pins 8 and 4 (Gnd). Thermal Design Guide Locate your operating current, read the junction temp rise from the graph and add to your maximum ambient. 135°C is the maximum allowable operating junction temperature. Test conditions: device soldered into 4” x 4” PCB, 2 sided with power and ground planes for heat conduction. due to the difficulty in predicting the ther- mal effects of airflow velocity and direction, and thermal conduction through ground planes it is important that the SuperSIPTM be evaluated thermally in each application. For high ambient temperature/high current application please request our Application Note 35-118-01, “Accurate Measurements of SuperSIPTM Junction Temperature”, for further assistance. Tj Rise vs. Io (Junction Temp Rise vs. Output Current) OUTPUT CURRENT AMPS Vo=3.3V, Cout-O µf, Vi=5V, Cin=100µf Efficiency 100 95 90 85 80 75 0.5 1.5 2.5 3.5 4.5 5.5 OUTPUT CURRENT - AMPS 70 60 50 40 30 20 10 0 STILL AIR 100LFM 300LFM 3.3V 25C 2.1V 25C Table 2 Vout Resistor Value Vout Resistor Value 1.8 576 Ω 2.8 18.2k 1.9 1.21k 2.9 24.3k 2.0 1.96k 3.0 34.8k 2.1 2.8k 3.1 54.9k 2.2 3.83k 3.2 110.0k 2.3 4.99k 3.3 OPEN 2.4 6.49k 3.4 66.5k 2.5 8.25k 3.5 29.4k 2.6 10.7k 3.6 18.2k 2.7 13.7k Transient Response Operating conditions are as follows: Vin=5V, Vo=3.3V, Load change from Io=0% to Io=100%, TA=25°C, Cin=0F, Operating conditions are as follows: Vin=5V, Vo=3.3V, Load change from Io=100% to Io=0%, TA=25°C, Cin=0F, Co= µF. |
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Ähnliche Beschreibung - SS25-A-A-A |
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