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FAN4147SX 데이터시트(PDF) 1 Page - Fairchild Semiconductor |
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FAN4147SX 데이터시트(HTML) 1 Page - Fairchild Semiconductor |
1 / 10 page March 2013 © 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN4147 • Rev. 1.0.1 FAN4147 Ground Fault Interrupter Features For GFCI and RCD Applications Precision Sense Amplifier and Bandgap Reference Built-in AC Rectifier Built-in Noise Filter Low-Voltage SCR Disable Direct DC Coupled to Sense Coil SCR Gate Driver Adjustable Sensitivity 400A Quiescent Current Minimum External Components Meets UL 943 Requirements Ideal for 120V or 220V Systems Space Saving SuperSOT™ 6-Pin Package Applications GFCI Output Receptacles GFCI Circuit Breakers Portable GFCI Cords Description The FAN4147 is a low-power Ground Fault Interrupter (GFI) controller for detecting hazardous current paths to ground and ground-to-neutral faults. The FAN4147 application circuit opens the load contacts before a harmful shock occurs. Internally, the FAN4147 contains a diode rectifier, precision bandgap 12V shunt regulator, precision low- VOS offset-sense amplifier, time delay noise filter, window-detection comparators, and an SCR driver. With a minimum number of external components, the FAN4147 detects and protects against a hot-wire-to- ground fault and a neutral-line-to-neutral-load short. The minimal components and the small SuperSOT ™ package allow for a small-form-factor, low-cost solution. The FAN4147 circuitry has a built-in rectifier and shunt regulator that operates with a low quiescent current. This allows for a high-value, low-wattage-series supply resistor. The internal temperature-compensated shunt regulator, sense amplifier, and bias circuitry provide for precision ground-fault detection. The low-VOS offset- sense amplifier allows direct coupling of the sense coil to the amplifier’s feedback signal. This eliminates the large 50/60Hz AC-coupling capacitor. The internal delay filter rejects high-frequency noise spikes common with inductive loads. This decreases false nuisance tripping. The internal SCR driver is temperature compensated and designed to satisfy the current requirements for a wide selection of external SCRs. The minimum number of external components and the 6-pin SuperSOT ™ package enable a low-cost, compact design and layout. Ordering Information Part Number Operating Temperature Range Package Packing Method FAN4147SX -35°C to +85°C 6-Lead SUPERSOT6, JEDEC M0-193, 1.6mm Tape and Reel |
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