FPF2110 ,Full Function Load Switch with Reverse Current BlockingGeneral Description 1.8 to 5.5V Input Voltage Range The FPF2108-FPF2110 is a series of load switch ..
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FPF2110
Full Function Load Switch with Reverse Current Blocking
FPF2108-FPF2110 IntelliMAX™ Advanced Load Management Products August 2008 FPF2108-FPF2110 tm IntelliMAX™ Advanced Load Management Products Features General Description 1.8 to 5.5V Input Voltage Range The FPF2108-FPF2110 is a series of load switches which provides full protection to systems and loads which may Controlled Turn-On encounter large current conditions. This devices contain a 200mA and 400mA Current Limit Options 0.125Ω current-limited P-channel MOSFET which can operate Undervoltage Lockout over an input voltage range of 1.8-5.5V. Internally, reverse Thermal Shutdown current blocking prevents current from flowing when the <2µA Shutdown Current MOSFET is off and the output voltage is higher than the input voltage. Switch control is by a logic input (ON) capable of Fast Current limit Response Time interfacing directly with low voltage control signals. Each part 3µs to Moderate Over Currents contains thermal shutdown protection which shuts off the switch 20ns to Hard Shorts to prevent damage to the part when a continuous over-current Reverse Current Blocking condition causes excessive heating. Fault Blanking When the switch current reaches the current limit, the part RoHS Compliant operates in a constant-current mode to prohibit excessive currents from causing damage. For the FPF2108, if the Applications constant current condition still persists after 10ms, the part will shut off the switch and pull the fault signal pin (FLAGB) low. The PDAs switch will remain off until the ON pin is cycled. For the Cell Phones FPF2109 and FPF2110, a current limit condition will GPS Devices immediately pull the fault signal pin low and the part will remain MP3 Players in the constant-current mode until the switch current falls below the current limit. The minimum current limit is 200mA for the Digital Cameras FPF2109 while that for the FPF2108 and FPF2110 is 400mA. Peripheral Ports These parts are available in a space-saving 5 pin SOT23 Hot Swap Supplies package. Typical Application Circuit TO LOAD V V IN OUT FPF2108 - FPF2110 OFF ON ON FLAGB GND Ordering Information Current Limit Auto-Restart Current Limit ON Pin Part Blanking Time Time Top Mark [mA] Activity [ms] [ms] FPF2108 400 10 NA Active LO 2108 FPF2109 200 0 NA Active HI 2109 FPF2110 400 0 NA Active HI 2110 ©2008 1 FPF2108-FPF2110 Rev. E
