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The FPF2108-FPF2110 is a series of load switches whichprovides full protection to systems and loads which mayencounter large current conditions. This devices contain a0.125W current-limited P-channel MOSFET which can operateover an input voltage range of 1.8-5.5V. Internally, reversecurrent blocking prevents current from flowing when theMOSFET is off and the output voltage is higher than the inputvoltage. Switch control is by a logic input (ON) capable ofinterfacing directly with low voltage control signals. Each partcontains thermal shutdown protection which shuts off the switchto prevent damage to the part when a continuous over-currentcondition causes excessive heating.
When the switch current reaches the current limit, the partoperates in a constant-current mode to prohibit excessivecurrents from causing damage. For the FPF2108, if theconstant current condition still persists after 10ms, the part willshut off the switch and pull the fault signal pin (FLAGB) low. Theswitch will remain off until the ON pin is cycled. For theFPF2109 and FPF2110, a current limit condition willimmediately pull the fault signal pin low and the part will remainin the constant-current mode until the switch current falls belowthe current limit. The minimum current limit is 200mA for theFPF2109 while that for the FPF2108 and FPF2110 is 400mA.
These parts are available in a space-saving 5 pin SOT23 package
FPF2108 Maximum Ratings
Product
Product status
Eco Status
Pricing*
Package type
Leads
Packing method
Package Drawing
Package Marking Convention**
FPF2108
Full Production
RoHS Compliant
$0.72
SOT-23
5
TAPE REEL
Line 1: &E&E&Y (Binary Calendar Year Coding) Line 2: &O2108&C Line 3: &.&O&E&V
* Fairchild 1,000 piece Budgetary Pricing
** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples
Package marking information for product FPF2108 is available. Click here for more information .
FPF2108 Features
1.8 to 5.5V Input Voltage Range Controlled Turn-On 200mA and 400mA Current Limit Options Undervoltage Lockout Thermal Shutdown <2uA Shutdown Current Fast Current limit Response Time 3us to Moderate Over Currents 20ns to Hard Shorts Reverse Current Blocking Fault Blanking
FPF2108 Typical Application
PDAs Cell Phones GPS Devices MP3 Players Digital Cameras Peripheral Ports Hot Swap Supplies
The FPF2108-FPF2110 is a series of load switches which provides full protection to systems and loads which may encounter large current conditions. This devices contain a 0.125W current-limited P-channel MOSFET which can operate over an input voltage range of 1.8-5.5V. Internally, reverse current blocking prevents current 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 FPF2108, if the constant current condition still persists after 10ms, the part will shut off the switch and pull the fault signal pin (FLAGB) low. The switch will remain off until the ON pin is cycled. For the FPF2109 and FPF2110, 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 FPF2109 while that for the FPF2108 and FPF2110 is 400mA.
FPF2109 Maximum Ratings
Parameter
Min.
Max.
Unit
VIN, VOUT, ON, FLAGB to GND
-0.3
6
V
Power Dissipation @ TA = 25°C (note 1)
667
mW
Operating Junction Temperature
-40
125
°C
Storage Temperature
-65
150
°C
Thermal Resistance, Junction to Ambient
150
°C/W
Electrostatic Discharge Protection
HBM
4000
V
MM
400
V
FPF2109 Features
1.8 to 5.5V Input Voltage Range Controlled Turn-On 200mA and 400mA Current Limit Options Undervoltage Lockout Thermal Shutdown <2uA Shutdown Current Fast Current limit Response Time 3us to Moderate Over Currents 20ns to Hard Shorts Reverse Current Blocking Fault Blanking
FPF2109 Typical Application
PDAs Cell Phones GPS Devices MP3 Players Digital Cameras Peripheral Ports Hot Swap Supplies
The FPF2108-FPF2110 is a series of load switches which provides full protection to systems and loads which may encounter large current conditions. This devices contain a 0.125W current-limited P-channel MOSFET which can operate over an input voltage range of 1.8-5.5V. Internally, reverse current blocking prevents current 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 FPF2108, if the constant current condition still persists after 10ms, the part will shut off the switch and pull the fault signal pin (FLAGB) low. The switch will remain off until the ON pin is cycled. For the FPF2109 and FPF2110, 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 FPF2109 while that for the FPF2108 and FPF2110 is 400mA.
FPF2110 Maximum Ratings
Parameter
Min.
Max.
Unit
VIN, VOUT, ON, FLAGB to GND
-0.3
6
V
Power Dissipation @ TA = 25°C (note 1)
667
mW
Operating Junction Temperature
-40
125
°C
Storage Temperature
-65
150
°C
Thermal Resistance, Junction to Ambient
150
°C/W
Electrostatic Discharge Protection
HBM
4000
V
MM
400
V
FPF2110 Features
1.8 to 5.5V Input Voltage Range Controlled Turn-On 200mA and 400mA Current Limit Options Undervoltage Lockout Thermal Shutdown <2uA Shutdown Current Fast Current limit Response Time 3us to Moderate Over Currents 20ns to Hard Shorts Reverse Current Blocking Fault Blanking
FPF2110 Typical Application
PDAs Cell Phones GPS Devices MP3 Players Digital Cameras Peripheral Ports Hot Swap Supplies
