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FAN6747LMY датащи(PDF) 3 Page - Fairchild Semiconductor |
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FAN6747LMY датащи(HTML) 3 Page - Fairchild Semiconductor |
3 / 15 page © 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN6747 • Rev. 1.0.1 3 Marking Information ZXYTT 6747F TPM Figure 3. Top Mark Pin Configuration Figure 4. Pin Assignments Pin Definitions Pin # Name Description 1 GND Ground. This pin is used for the ground potential of all the pins. A 0.1µF decoupling capacitor placed between VDD and GND is recommended. 2 FB Feedback. The output voltage feedback information from the external compensation circuit is fed into this pin. The PWM duty cycle is determined from this pin and the current-sense signal from Pin 6. 3 NC No Connection. 4 HV High-Voltage Startup. This pin is connected to the line input via diodes and resistors to achieve brownout and high/low line compensation. Once the voltage of the HV pin is lower than the brownout voltage, PWM output is turned off. High/low line compensation dominates the OCP level and cycle-by-cycle current limit, to solves the unequal OCP level and power limit problem under universal input. 5 RT Over-Temperature Protection. For over-temperature protection, an external NTC thermistor is connected from this pin to GND. The impedance of the NTC decreases at high temperatures. Once the voltage of the RT pin drops below the threshold voltage, the controller latches off the PWM. 6 SENSE Current Sense. This pin is used to sense the MOSFET current for the current mode PWM and OCP. If the switching current is higher than OCP threshold and lasts 220ms, the controller latches off the PWM. 7 VDD Supply Voltage. IC operating current and MOSFET driving current are supplied using this pin. This pin is connected to an external bulk capacitor of typically 10µF. The threshold voltages for startup and turn-off are 16.5V and 9V, respectively. The operating current is lower than 2mA. 8 GATE Gate Driver Output. The totem-pole output driver for the power MOSFET. It is internally clamped below 14V. : Fairchild Logo Z: Plant Code X: Year Code Y: Week Code TT: Die Run Code F: L = OCP latch T: Package Type (N =DIP, M = SOP) P: Y = Green Compound M: Manufacturing Flow Code |
Аналогичный номер детали - FAN6747LMY |
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Аналогичное описание - FAN6747LMY |
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