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FPF2140 Datasheet

  • FPF2140

  • Full Function Load Switch with Reverse Current Blocking

  • 911.72KB

  • 13頁(yè)

  • FAIRCHILD

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FPF2140/42/43/44/46/47 Full Function Load Switch with Reverse Current Blocking
October 2007
FPF2140/42/43/44/46/47
tm
Full Function Load Switch with Reverse Current Blocking
Features
1.8 to 5.5V Input Voltage Range
Controlled Turn-On
200mA and 400mA Current Limit Options
Undervoltage Lockout
Thermal Shutdown
<2碌A(chǔ) Shutdown Current
Auto Restart
Fast Current limit Response Time
5碌s to Moderate Over Currents
30ns to Hard Shorts
Fault Blanking
Reverse Current Blocking
Power Good Function
RoHS Compliant
General Description
The FPF2140/42/43/44/46/47 is a series of load switches which
provides full protection to systems and loads which may
encounter large current conditions. These devices contain a
0.12鈩?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.
Applications
PDAs
Cell Phones
GPS Devices
MP3 Players
Digital Cameras
Peripheral Ports
Hot Swap Supplies
Pin 1
BOTTOM
TOP
Ordering Information
Part
FPF2140
FPF2142
FPF2143
FPF2144
FPF2146
FPF2147
Current Limit
[mA]
200/300/400
200/300/400
200/300/400
400/600/800
400/600/800
400/600/800
Current Limit
Blanking Time
[ms]
15/30/60
15/30/60
0
15/30/60
15/30/60
0
Auto-Restart
Time
[ms]
225/450/900
NA
NA
225/450/900
NA
NA
ON Pin
Activity
Active HI
Active HI
Active HI
Active HI
Active HI
Active HI
漏2007 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
FPF2140/42/43/44/46/47 Rev. D

FPF2140 產(chǎn)品屬性

  • 3,000

  • 集成電路 (IC)

  • PMIC - 電源分配開關(guān)

  • -

  • 高端開關(guān)

  • 1

  • 160 毫歐

  • 是

  • 200mA

  • 1.8 V ~ 5.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 6-MLP

  • 6-MLP（2x2）

  • 帶卷 (TR)

  • FPF2140TR

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