FPF2148 Fiche technique PDF - DataSheet.fr

FPF2148 Datasheet PDF


FPF2148 Fonction - Full Function Load Switch - Fairchild Semiconductor

Numéro de référence FPF2148
Description Full Function Load Switch
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor Logo 
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FPF2148 Datasheet, Description
FPF2148
Full Function Load Switch
Features
„ 1.8 to 5.5V Input Voltage Range
„ Controlled Turn-On
„ 200mA Current Limit Options
„ Undervoltage Lockout
„ Thermal Shutdown
„ <2µA Shutdown Current
„ Fast Current limit Response Time
„ 5µs to Moderate Over Currents
„ 30ns to Hard Shorts
„ Fault Blanking
„ Power Good Function
„ RoHS Compliant
Applications
„ PDAs
„ Cell Phones
„ GPS Devices
„ MP3 Players
„ Digital Cameras
„ Peripheral Ports
„ Hot Swap Supplies
November 2008
tm
General Description
The FPF2148 is a load switch which provides full protection to
systems and loads which may encounter large current
conditions. These devices contain a 0.12current-limited
P-channel MOSFET which can operate over an input voltage
range of 1.8-5.5V. Switch control is by a logic input (ONB)
capable of interfacing directly with low voltage control signals.
The 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 FPF2148, 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.
The part is available in a space-saving 6 pin 2X2 MLP package.
BOTTOM
Pin 1
TOP
Ordering Information
Part
FPF2148
Current Limit
[mA]
200/300/400
Current Limit
Blanking Time
[ms]
0
Auto-Restart
Time
[ms]
NA
ONB Pin
Activity
Active LO
©2008 Fairchild Semiconductor Corporation
FPF2148 Rev. H
1
www.fairchildsemi.com





Constitution 13 Pages
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Un datasheet est un document fourni par le constructeur du composant, où figurent toutes les données techniques sur le produit: puissance dissipée, courant maximal, tension de seuil, tension de claquage, température de stockage, etc. Ils sont en général fournis gratuitement, et se présentent très régulièrement sous la forme d'un document pdf.


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