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PDF FPF2174 Data sheet ( Hoja de datos )
| Número de pieza | FPF2174 | |
| Descripción | Advanced Load Management Products | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de FPF2174 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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www.DataSheet4U.com
May 2006
FPF2174
IntelliMAX™ Advanced Load Management Products
tm
Features
1.8 to 5.5V Input Voltage Range
Controlled Turn-On
200mA Current Limit Option
Undervoltage Lockout
Thermal Shutdown
<1µA Shutdown Current
Fast Current limit Response Time
3µs to Moderate Over Currents
20ns to Hard Shorts
Integrated very low VF Schottky Diode for
Reverse Current Blocking
Integrated Zener Diode for Output Clamp
Applications
PDAs
Cell Phones
GPS Devices
MP3 Players
Digital Cameras
Peripheral Ports
Hot Swap Supplies
General Description
The FPF2174 is a load switch which combines the functionality
of the IntelliMAXTM series load switch with a very low forward
voltage drop Schottky barrier rectifier and a zener clamp at the
output. The integrated solution provides full protection to
systems and loads which may encounter large current
conditions in a very compact MLP 3x3 package. This device
contain a 0.125Ω current-limited P-channel MOSFET which can
operate over an input voltage range of 1.8-5.5V. The Schottky
diode acts as a barrier so that no reverse current can flow 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. 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 switch will remain off
until the ON pin is cycled. The minimum current limit is 200mA.
These parts are available in a space-saving 6L MLP 3x3
package.
Typical Application Circuit
OFF ON
VIN VOUT
FPF2174
ON FLAGB
GND
TO LOAD
©2006 Fairchild Semiconductor Corporation
FPF2174 Rev. B1
1
www.fairchildsemi.com
1 page  
Typical Characteristics
120
VON = VIN
110
100
90
80
70
60
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
SUPPLY VOLTAGE (V)
Figure 1. Quiescent Current vs. Input Voltage
120
VIN = 5.5V
110 VIN = 3.3V
100
90
VIN = 1.8V
80
70
60
-40 -15 10 35 60 85
TJ, JUNCTION TEMPERATURE(oC)
Figure 2. Quiescent Current vs. Temperature
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40
VIN = 5.5V
VIN = 3.3V
-15 10 35 60
TJ, JUNCTION TEMPERATURE(oC)
85
Figure 3. ISHUTDOWN Current vs. Temperature
0.6
0.5
0.4
0.3
0.2 VIN = 5.5V
0.1 VIN = 3.3V
0.0
-40
-15 10 35 60
TJ, JUNCTION TEMPERATURE(oC)
85
Figure 4. ISWITCH-OFF Current vs. Temperature
60
VIN = 3.3V
50
40
30
20
-40
-15 10 35 60
TJ, JUNCTION TEMPERATURE(oC)
85
Figure 5. Latchoff current vs. Temperature
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VIN,INUT VOLTAGE (V)
Figure 6. Input Voltage vs. On Threshold Voltage
FPF2174 Rev.B1
5 www.fairchildsemi.com
5 Page 
Dimensional Outline and Pad Layout
Package MLP06H
FPF2174 Rev.B1
11 www.fairchildsemi.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet FPF2174.PDF ] | |
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