FPF2100_08 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – IntelliMAX™ Advanced Load Management Products

August 2008
FPF2100-FPF2107
tm
IntelliMAX™ Advanced Load Management Products
Features
„ 1.8 to 5.5V Input Voltage Range
„ Controlled Turn-On
„ 200mA and 400mA Current Limit Options
„ Undervoltage Lockout
„ Thermal Shutdown
„ <1µA Shutdown Current
„ Auto restart
„ Fast Current limit Response Time
„ 3µs to Moderate Over Currents
„ 20ns to Hard Shorts
„ Fault Blanking
„ RoHS Compliant
Applications
„ PDAs
„ Cell Phones
„ GPS Devices
„ MP3 Players
„ Digital Cameras
„ Peripheral Ports
„ Hot Swap Supplies
General Description
The FPF2100 through FPF2107 is a family of load switches
which provide full protection to systems and loads which may
encounter large current conditions. These devices contain a
0.125Ω current-limited P-channel MOSFET which can operate
over an input voltage range of 1.8-5.5V. 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 FPF2100-FPF2102 and
FPF2104-FPF2106, if the constant current condition still
persists after 10ms, these parts will shut off the switch and pull
the fault signal pin (FLAGB) low. The FPF2100, FPF2101,
FPF2104 and FPF2105, have an auto-restart feature which will
turn the switch on again after 160ms if the ON pin is still active.
The FPF2102 and FPF2106 do not have this auto-restart
feature so the switch will remain off until the ON pin is cycled.
For the FPF2103 and FPF2107, 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. For the FPF2100 through FPF2103, the
minimum current limit is 200mA while that for the FPF2104
through FPF2107 is 400mA.
These parts are available in a space-saving 5 pin SOT23
package.
Ordering Information
Part
FPF2100
FPF2101
FPF2102
FPF2103
FPF2104
FPF2105
FPF2106
FPF2107
Current Limit
[mA]
200
200
200
200
400
400
400
400
Current Limit
Blanking Time
[ms]
10
10
10
0
10
10
10
0
Auto-Restart
Time
[ms]
160
160
NA
NA
160
160
NA
NA
ON Pin
Activity
Active HI
Active LO
Active HI
Active HI
Active HI
Active LO
Active HI
Active HI
Top Mark
2100
2101
2102
2103
2104
2105
2106
2107
©2008 Fairchild Semiconductor Corporation
1
FPF2100-FPF2107 Rev. H
www.fairchildsemi.com