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FAN6862 Datasheet(PDF) 3 Page - Fairchild Semiconductor |
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FAN6862 Datasheet(HTML) 3 Page - Fairchild Semiconductor |
3 / 16 page © 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN6862 • Rev. 1.0.2 3 Marking Information Figure 3. Top Mark Pin Configuration Figure 4. SSOT-6 Figure 5. DIP-8 Pin Definitions Pin # DIP8 Pin # SSOT-6 Name Description 8 1 GND Ground. 7 2 FB Feedback. The FB pin provides the output voltage regulation signal. It provides feedback to the internal PWM comparator, so that the PWM comparator can control the duty cycle. This pin also provide for OLP: if VFB is larger than the trigger level and delays for a long time, the controller stops and restarts. 6 NC No Connect Pin 5 3 RT Temperature Detection. An external NTC thermistor is connected from this pin to GND for over-temperature protection. The impedance of the NTC decreases at high temperatures. Once the voltage of the RT pin drops below a threshold, PWM output is disabled. 4 4 SENSE Current Sense. This pin senses the voltage across a resistor. When the voltage reaches the internal threshold, PWM output is disabled. This activates over-current protection. This pin also provides current amplitude information for current-mode control. 3 NC No Connect Pin 2 5 VDD Power Supply. 1 6 GATE Driver Output. The totem-pole output driver for driving the power MOSFET. ABx: ABD: FAN6862TY TT: Wafer Lot Code : Year Code _ _ _ : Week Code F – Fairchild Logo Z – Plant Code X – 1-Digit Year Code Y – 1-Digit Week Code TT – 2-Digit Die Run Code T – Package Type (N:DIP) P – Y: Green Package M – Manufacture Flow Code |
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