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STEVAL-ISA007V1 Arkusz danych(PDF) 1 Page - STMicroelectronics |
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STEVAL-ISA007V1 Arkusz danych(HTML) 1 Page - STMicroelectronics |
1 / 5 page Preliminary Data This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. June 2007 Rev 2 1/5 5 STEVAL-ISA007V1 High power 3-phase auxiliary power supply evaluation board Based on L5991 and ESBT STC08DE150HV Features ■ 3-phase 150W auxiliary dual output SMPS ■ Input: 400Vac +/- 20% ■ Output voltage 1: 24V, 6.25A @ 90kHz ■ Output voltage 2: 5V, 0.075A @ 90kHz ■ Auxiliary output voltage: 15V, 0.01A ■ Maximum output power : 150W ■ Efficiency > 85% ■ Switching frequency > 90kHz ■ Stand-by switching frequency > 35kHz ■ Feedback: secondary regulation Description Auxiliary SMPS is particularly affected since it is the entry point for all the biasing of control ICs and cooling system powering. Standardization towards "universal input" is reflected in more stressful conditions for the power transistor used as the main switch both in terms of blocking voltage or current capability. Since almost all auxiliary power supplies are based on fly-back converters, the need for a blocking voltage as high as 1500V and over, coupled with high switching frequency operations, make the ESBTs the perfect choice for such power supplies. The STC08DE150HV, in conjunction with the PWM L5991, perfectly fulfills the requirements and brings high efficiency to the system ST components ■ STC08DE150HV Emitter Switched Bipolar Transistor, 5A, 1500V, TO247-4L HV leads ■ L5991A PWM SMPS controller, DIP-16 ■ TL431AI shunt reference, 2.5V, 1mA...100mA, TO-91 ■ PN2222A small signal bipolar transistor, NPN, 40V, 0.6A, 330mW,TO-92 ■ STTH102 high voltage ultrafast diode, 200V, 1A, DO-41 ■ 1.5KE400A transil, 400V, 1.5kW, DO-201 ■ STTH108 high voltage ultrafast diode, 800V, 1A, DO-41 ■ STTH3002CT high efficiency ultrafast diode, 200V, 30A, TO-220AC STEVAL-ISA007V1 www.st.com |
Podobny numer części - STEVAL-ISA007V1 |
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Podobny opis - STEVAL-ISA007V1 |
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