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E-L4960 Folha de dados(PDF) 3 Page - STMicroelectronics |
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E-L4960 Folha de dados(HTML) 3 Page - STMicroelectronics |
3 / 16 page Symbol Parameter Test Conditions Min. Typ. Max. Unit DYNAMIC CHARACTERISTICS Vo Output voltage range Vi = 46V Io = 1A Vref 40 V Vi Input voltage range Vo = Vref to 36V Io = 2.5A 9 46 V ∆ Vo Line regulation Vi = 10V to 40V Vo = Vref Io = 1A 15 50 mV ∆ Vo Load regulation Vo = Vref Io = 0.5A to 2A 10 30 mV Vref Internal reference voltage (pin 2) Vi = 9V to 46V Io = 1A 5 5.1 5.2 V ∆ Vref ∆ T Average temperature coefficient of refer voltage Tj = 0 °C to 125°C Io = 1A 0.4 mV/ °C Vd Dropout voltage Io = 2A 1.4 3 V Iom Maximum operating load current Vi = 9V to 46V Vo = Vref to 36V 2.5 A I7L Current limiting threshold (pin 7) Vi = 9V to 46V Vo = Vref to 36V 3 4.5 A ISH Input average current Vi = 46V; output short-circuit 30 60 mA η Efficiency f = 100KHz Vo = Vref 75 % Io = 2A Vo = 12V 85 % SVR Supply voltage ripple rejection ∆ Vi = 2Vrms fripple = 100Hz Vo = Vref Io = 1A 50 56 dB f Switching frequency 85 100 115 KHz ∆ f ∆ Vi Voltage stability of switching frequency Vi = 9V to 46V 0.5 % ∆ f ∆ Tj Temperature stability of switching frequency Tj = 0 °C to 125°C 1 % fmax Maximum operating switching frequency Vo = Vref Io = 2A 120 150 KHz Tsd Thermal shutdown junction temperature 150 °C ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tj = 25 °C, Vi = 35V, unless otherwise specified) Symbol Parameter Value Unit Rth j-case Thermal resistance junction-case max 4 °C/W Rth j-amb Thermal resistance junction-ambient max 50 °C/W THERMAL DATA 3/16 L4960 |
Nº de peça semelhante - E-L4960 |
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Descrição semelhante - E-L4960 |
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