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DM0465RE Folha de dados(PDF) 4 Page - Fairchild Semiconductor |
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DM0465RE Folha de dados(HTML) 4 Page - Fairchild Semiconductor |
4 / 20 page © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.2 4 Pin Configuration Figure 3. Pin Configuration (Top View) Pin Definitions Pin # Name Description 1Drain SenseFET drain. This pin is the high-voltage power SenseFET drain. It is de- signed to drive the transformer directly. 2GND Ground. This pin is the control ground and the SenseFET source. 3VCC Power Supply. This pin is the positive supply voltage input. During start-up, the power is supplied by an internal high-voltage current source connected to the Vstr pin. When VCC reaches 12V, the internal high-voltage current source is disabled and the power is supplied from the auxiliary transformer winding. 4FB Feedback. This pin is internally connected to the inverting input of the PWM comparator. The collector of an opto-coupler is typically tied to this pin. For stable operation, a capacitor should be placed between this pin and GND. If the voltage of this pin reaches 6.0V, the overload protection is activated, re- sulting in shutdown of the FPS™. 5 NC No Connection. 6Vstr Start-up. This pin is connected directly to the high-voltage DC link. At start-up, the internal high-voltage current source supplies internal bias and charges the external capacitor connected to the VCC pin. Once VCC reaches 12V, the in- ternal current source is disabled. 6. Vstr 5. NC 4. FB 3. VCC 2. GND 1. Drain TO-220F-6L |
Nº de peça semelhante - DM0465RE |
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Descrição semelhante - DM0465RE |
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