Full Function Load Switch With Reverse Current Blocking

The FPF2140 FPF2142 FPF2143 FPF2144 FPF2146 FPF2147 is a series of load switches which provides full protection to systems and loads which may encounter large current conditions. These devices contain a 0.11& current-limited P-Channel MOSFET which CAN operate over an input voltage range of 1.8-5.5V. Internally, current is prevented from flowing when the MOSFET is off and the output voltage is higher than the input voltage. Switch control is by a Logic input (ON) capable of interfacing directly with low voltage control signals. Each part contains thermal shutdown protection which shuts off the Switch to prevent damage to the part when a continuous over-current condition causes excessive heating.
When the Switch current reaches the current limit, the part operates in a constant-current mode to prohibit excessive currents from causing damage. For the FPF2140 42/44/46, if the constant current condition still persists after 30ms, the part will shut off the Switch and pull the fault signal pin (FLAGB) low. The FPF2140 44 have an auto-restart feature which will turn the Switch on again after 450ms if the ON pin is still active. The FPF2142 46 do not have this auto-restart feature so the Switch will remain off until the ON pin is cycled. For the FPF2143 47, a current limit condition will immediately pull the fault signal pin low and the part will remain in the constant-current mode until the Switch current falls below the current limit. The minimum current limit is 200mA for the FPF2140 42/43 while that for the FPF2144 46/47 is 400mA. These parts are available in a space-saving 6 pin 2X2 MLP package.
By Fairchild Semiconductor
FPF2143 's PackagesFPF2143 's pdf datasheet

FPF2143 Pinout, Pinouts
FPF2143 pinout,Pin out
This is one package pinout of FPF2143,If you need more pinouts please download FPF2143's pdf datasheet.

FPF2143 Application circuits
FPF2143 circuits
This is one application circuit of FPF2143,If you need more circuits,please download FPF2143's pdf datasheet.

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