FPF2505 [FAIRCHILD]

IntelliMAX⑩ Advanced Load Management Products; 的IntelliMAX ™先进负载管理产品
FPF2505
型号: FPF2505
厂家: FAIRCHILD SEMICONDUCTOR    FAIRCHILD SEMICONDUCTOR
描述:

IntelliMAX⑩ Advanced Load Management Products
的IntelliMAX ™先进负载管理产品

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中文:  中文翻译
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February 2007  
FPF2500-FPF2506  
IntelliMAX™ Advanced Load Management Products  
tm  
Features  
General Description  
„ 4.5 to 20V Input Voltage Range  
The FPF2500 through FPF2506 is a family of load switches  
which provide full protection to systems and loads which may  
encounter large current conditions. These devices contain a  
0.23current-limited N-channel MOSFET which can operate  
over an input voltage range of 4.5-20V. 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.  
„ Controlled Turn-On  
„ 0.4A, 0.8A and Adjustable Current Limit Option  
„ Undervoltage Lockout  
„ Thermal Shutdown  
„ <10uA Shutdown Current  
„ Auto Restart  
„ Fault Blanking  
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 FPF2500, FPF2501,  
FPF2503 and FPF2505, if the constant current condition still  
persists after 5ms, these parts will shut off the switch and, for  
the FPF2503 and FPF2505, the fault signal pin (FLAGB) will be  
pulled low. The FPF2500, FPF2503, and FPF2505, have an  
auto-restart feature which will turn the switch on again after  
640ms if the ON pin is still active. The FPF2501 does not have  
this auto-restart feature so the switch will remain off until the ON  
pin is cycled. For the FPF2502, FPF2504 and FPF2506, 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 FPF2500  
through FPF2502, the minimum current limit is adjustable from  
500mA to 2A. For the FPF2503 and FPF2504 the minimum  
current is internally fixed at 400mA while that for the FPF2505  
and FPF2506 is internally fixed at 800mA.  
Applications  
„ PDAs  
„ Motor Drivers  
„ Cell Phones  
„ Digital Cameras  
„ RoHS Compliant  
These parts are available in a space-saving 5 pin SOT23  
package.  
Ordering Information  
Current Limit  
Blanking Time  
[ms]  
Auto-Restart  
Time  
Part  
Current Limit [A]  
Adjustable (0.5-2.0 +/-30%)  
Adjustable (0.5-2.0 +/-30%)  
Adjustable (0.5-2.0 +/-30%)  
0.4/0.6/0.8  
[ms]  
Fault Pin  
No  
FPF2500  
FPF2501  
FPF2502  
FPF2503  
FPF2504  
FPF2505  
FPF2506  
2.5/5/10  
320/640/1280  
2.5/5/10  
NA  
NA  
No  
0
No  
2.5/5/10  
320/640/1280  
NA  
Yes  
0.4/0.6/0.8  
0
2.5/5/10  
0
Yes  
0.8/1.2/1.6  
320/640/1280  
NA  
Yes  
0.8/1.2/1.6  
Yes  
©2007 Fairchild Semiconductor Corporation  
FPF2500-FPF2506 Rev. D4  
1
www.fairchildsemi.com  
Typical Application Circuit  
TO LOAD  
V
V
OUT  
IN  
FPF2500-FPF2502  
ISET  
OFF ON  
5.5V max  
ON  
GND  
5.5V max  
TO LOAD  
V
V
IN  
OUT  
FPF2503- FPF2506  
ON  
FLAGB  
OFF ON  
5.5V max  
-
GND  
Functional Block Diagram  
V
IN  
UVLO  
ON  
CONTROL  
LOGIC  
CURRENT  
LIMIT  
V
OUT  
THERMAL  
SHUTDOWN  
I
SET  
GND  
FPF2500, FPF2501, FPF2502  
V
IN  
UVLO  
CONTROL  
LOGIC  
ON  
THERMAL  
SHUTDOWN  
CURRENT  
LIMIT  
V
OUT  
FPF2503, FPF2504  
FPF2505, FPF2506  
FLAGB  
GND  
2
www.fairchildsemi.com  
FPF2500-FPF2506 Rev. D4  
Pin Configuration  
VOUT  
5
4
VIN  
ON  
1
GND  
2
3
FLAGB/ISET  
SOT23-5  
Pin Description  
Pin  
1
Name  
Function  
VOUT  
GND  
Switch Output: Output of the power switch  
Ground  
2
Fault Output (FPF2503-FPF2506): Active LO, open drain output which indicates on over  
current supply under voltage or over temperature state.  
FLAGB  
ISET  
3
Adjustable Current Limit Setting Resistor (FPF2500-FPF2502): An external resistor  
connected between this pin and ground sets the current limit value.  
4
5
ON  
VIN  
ON Control Input:  
Supply Input: Input to the power switch and the supply voltage for the IC  
Absolute Maximum Ratings  
Parameter  
Min.  
-0.3  
Max.  
20  
Unit  
V
VIN, VOUT, to GND  
ON, FLAGB, ISET to GND  
Power Dissipation @ TA=25°C (Note 1)  
Operating Temperature Range  
Storage Temperature  
-0.3  
5.5  
V
667  
125  
150  
150  
mW  
°C  
-40  
-65  
°C  
Thermal Resistance, Junction to Ambient  
Electrostatic Discharge Protection  
°C/W  
V
HBM  
MM  
2000  
200  
V
Recommended Operating Range  
Parameter  
Min.  
4.5  
Max.  
20  
Unit  
V
VIN  
Ambient Operating Temperature, TA  
-40  
85  
°C  
Electrical Characteristics  
VIN = 4.5 to 20V, TA = -40 to +85°C unless otherwise noted. Typical values are at VIN = 12V and TA = 25°C.  
Parameter  
Symbol  
Conditions  
Min.  
Typ. Max.  
Unit  
Basic Operation  
Operating Voltage  
Quiescent Current  
Shutdown Current  
Latch-Off Current  
VIN  
4.5  
20  
V
IQ  
IOUT = 0mA, VIN = 12V, Von=5V  
60  
100  
1
µA  
µA  
µA  
ISHDN  
ILATCHOFF FPF2501  
TA = 25°C, IOUT = 50mA  
45  
230  
300  
320  
On-Resistance  
RON  
mΩ  
TA = -40 to +85°C, IOUT = 50mA  
3
www.fairchildsemi.com  
FPF2500-FPF2506 Rev. D4  
Electrical Characteristics Cont.  
VIN = 4.5 to 20V, TA = -40 to +85°C unless otherwise noted. Typical values are at VIN = 12V and TA = 25°C.  
Parameter  
Symbol  
Conditions  
Min.  
Typ. Max.  
Unit  
V
ON Input Logic High Voltage  
ON Input Logic Low Voltage  
ON Input Leakage  
VIH  
VIN = 4.5V to 20V  
0.9  
VIL  
VIN = 4.5V to 20V  
0.4  
V
VON = 5V or GND  
-1  
1
µA  
µA  
V
Off Switch Leakage  
ISWOFF  
VON = 0V, VOUT = 0V  
VIN = 5V, ISINK = 10mA  
VIN = 5V, Switch on  
0.01  
FLAGB Output Logic Low Voltage  
FLAGB Output High Leakage Current  
Protections  
0.1  
0.2  
1
µA  
FPF2503  
FPF2504  
400  
800  
600  
800  
FPF2505  
FPF2506  
1200  
1600  
Current Limit  
ILIM  
TA=25 °C  
mA  
FPF2500  
FPF2501  
FPF2502  
0.7xI  
1.0xI  
1.3xI  
NOM  
NOM  
NOM  
TJ Increasing  
TJ Decreasing  
VIN Increasing  
140  
130  
3.85  
100  
°C  
°C  
V
Thermal Shutdown  
Under Voltage Shutdown  
Under Voltage Shutdown Hysteresis  
Dynamic  
UVLO  
3.75  
4.00  
mV  
Turn on time  
tON  
tOFF  
tR  
RL=500, CL=1uF  
RL=500, CL=1uF  
RL=500, CL=1uF  
RL=500, CL=1uF  
1
ms  
ms  
ms  
ms  
Turn off time  
0.1  
3
VOUT Rise Time  
VOUT Fall Time  
tF  
1.5  
FPF2500, FPF2501, FPF2503,  
FPF2505  
Over Current Blanking Time  
Auto-Restart Time  
tBLANK  
2.5  
5
640  
3
10  
ms  
ms  
µs  
tRESTART  
FPF2500, FPF2503, FPF2505  
320  
1280  
VIN = 12V, VON = 5V  
Moderate Overcurrent Condition  
Short Circuit Response Time  
Note 1: Package power dissipation on 1square inch pad, 2 oz. copper board.  
4
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FPF2500-FPF2506 Rev. D4  
Typical Characteristics  
80  
75  
70  
65  
60  
55  
50  
45  
40  
80  
VON = 5V  
V
IN = 20V  
75  
70  
65  
60  
55  
50  
VIN = 12V  
VIN = 4.5V  
4
6
8
10  
12  
14  
16  
18  
20  
-40  
-15  
10  
35  
60  
85  
SUPPLY VOLTAGE (V)  
TJ, JUNCTION TEMPERATURE (oC)  
Figure 1. Quiescent Current vs. Input Voltage  
Figure 2. Quiescent Current vs. Temperature  
8.0  
7.5  
7.0  
6.5  
6.0  
5.5  
5.0  
4.5  
4.0  
0.036  
0.032  
0.028  
0.024  
0.02  
I_SWOFF  
I_SHDN  
VIN = 20V  
V
IN = 20V  
VIN = 12V  
VIN = 12V  
0.016  
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
TJ, JUNCTION TEMPERATURE (oC)  
TJ, JUNCTION TEMPERATURE (oC)  
Figure 3. ISHUTDOWN Current vs. Temperature  
Figure 4. ISWITCH-OFF Current vs. Temperature  
0.80  
0.75  
0.70  
0.65  
0.60  
0.55  
0.50  
320  
300  
280  
260  
240  
220  
200  
180  
160  
VIN = 12V  
4
6
8
10  
12  
14  
16  
18  
20  
-40  
-15  
10  
35  
60  
85  
TJ, JUNCTION TEMPERATURE (oC)  
V , Input Voltage (V)  
IN  
Figure 5. VIH vs. VIN  
Figure 6. R(ON) vs. Temperature  
5
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FPF2500-FPF2506 Rev. D4  
Typical Characteristics  
1400  
1400  
1200  
1000  
800  
600  
400  
200  
0
RSET = 20kΩ  
1200  
FPF2505, 2506  
FPF2503, 2504  
1000  
FPF2500, 2501, 2502  
800  
600  
400  
200  
0
0
1
2
3
4
5
6
7
8
9
10 11 12  
0
1
2
3
4
5
6
7
8
9
10 11 12  
VIN - VOUT (V)  
VIN - VOUT (V)  
Figure 7. Current Limit vs. Output Voltage  
Figure 8. Current Limit vs. Output Voltage  
1400  
1300  
1200  
1100  
1000  
900  
1600  
1400  
1200  
1000  
800  
600  
400  
200  
0
FPF2500, 2501, 2502  
FPF2505, 2506  
FPF2503, 2504  
800  
700  
600  
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
TJ, JUNCTION TEMPERATURE (oC)  
TJ, JUNCTION TEMPERATURE (oC)  
Figure 9. Current Limit vs. Temperature  
Figure 10. Current Limit vs. Temperature  
10  
1
10  
ILOAD = 10mA  
VCC = 12V  
ILOAD = 10mA  
VCC = 12V  
TD(ON)  
T(RISE)  
0.1  
0.01  
TD(OFF)  
T(FALL)  
1
-40  
-40  
-15  
10  
35  
60  
85  
-15  
10  
35  
60  
85  
TJ, JUNCTION TEMPERATURE (oC)  
TJ, JUNCTION TEMPERATURE (oC)  
Figure 11. TON/TOff vs. Temperature  
Figure 12. TRISE/TFALL vs. Temperature  
6
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FPF2500-FPF2506 Rev. D4  
Typical Characteristics  
7
6
5
4
3
800  
700  
600  
500  
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
TJ, JUNCTION TEMPERATURE (oC)  
TJ, JUNCTION TEMPERATURE (oC)  
Figure 13. TBLANK vs. Temperature  
Figure 14. TRESTART vs. Temperature  
V
IN = 12V  
VIN = 12V  
VDRV  
(Note 2)  
5V/DIV  
VDRV  
(Note 2)  
5V/DIV  
VOUT  
VOUT  
10V/DIV  
10V/DIV  
IOUT  
IOUT  
1A/DIV  
1A/DIV  
TRESTART  
FLAGB  
5V/DIV  
FLAGB  
5V/DIV  
5ms/DIV  
100ms/DIV  
Figure 15. TBLANK Response  
Figure 16. TRESTART Response (FPF2505)  
(Switch is turned on to an overcurrent condition)  
VON  
VON  
5V/DIV  
5V/DIV  
IOUT  
IOUT  
10mA/DIV  
10mA/DIV  
VIN=12V, CIN=10uF  
VIN=12V, CIN=10uF  
RL=500, CL=1uF  
RL=500, CL=1uF  
2ms/DIV  
2us/DIV  
Figure 17. TON Response  
Figure 18. TOFF Response  
7
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FPF2500-FPF2506 Rev. D4  
Typical Characteristics  
VIN  
10V/DIV  
VIN  
10V/DIV  
VON  
5V/DIV  
IOUT  
10A/DIV  
VIN=12V, CIN=10uF  
RL=4.7, CL=1uF  
IOUT  
COUT=1uF, CIN=10uF  
VON=5V  
VOUT  
10V/DIV  
1A/DIV  
20us/DIV  
1ms/DIV  
Figure 20. Current Limit Response  
Figure 19. Short Circuit Response  
(Output is shorted to GND)  
Note 2: VDRV signal forces the device to go into overcurrent condition.  
8
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FPF2500-FPF2506 Rev. D4  
Description of Operation  
The FPF2500 - FPF2506 are current limited switches that  
protect systems and loads which can be damaged or disrupted  
by the application of high currents. The core of each device is a  
Current Limiting  
The current limit ensures that the current through the switch  
doesn't exceed a maximum value while not limiting at less than  
a minimum value. For the FPF2500, FPF2501 and FPF2502,  
the current at which the parts will limit is adjustable through the  
selection of an external resistor connected to ISET. Information  
for selecting the resistor is found in the Application Info section.  
For the FPF2503 and FPF2504 the minimum current is 400mA  
and the maximum current is 800mA and for the FPF2505-  
FPF2506 the minimum current is 800mA and the maximum  
current is 1600mA. The FPF2500, FPF2501, FPF2503 and  
FPF2505 have a blanking time of 5ms, nominally, during which  
the switch will act as a constant current source. At the end of  
the blanking time, the switch will be turned-off. For FPF2503  
and FPF2505, at the end of the blanking time, the switch will be  
turned-off and the FLAGB pin will activate to indicate that  
current limiting has occurred. The FPF2502, FPF2504 and  
FPF2506 have no current limit blanking period so they will  
remain in a constant current state. For FPF2504 and FPF2506,  
immediately upon a current limit condition FLAGB is activated.  
The FPF2502, FPF2504 and FPF2506 devices will remain in  
constant current state until the ON pin is cycled or the thermal  
shutdown turns-off the switch.  
0.23N-channel MOSFET and  
a controller capable of  
functioning over a wide input operating range of 4.5 V -20 V.  
The controller protects against system malfunctions through  
current limiting under-voltage lockout and thermal shutdown.  
The current limit for FPF2500, FPF2501 and FPF2502 is  
adjustable from 500 mA to 2 A through the selection of an  
external resistor. The FPF2503 and FPF2504 the minimum  
current is internally fixed at 400 mA while that for the FPF2505  
and FPF2506 is internally fixed at 800mA.  
On/Off Control  
The ON pin controls the state of the switch. When ON is high,  
the switch is in the on state. Activating ON continuously holds  
the switch in the on state so long as there is no fault. For all  
versions, an under-voltage on VIN or a junction temperature in  
excess of 140°C overrides the ON control to turn off the switch.  
In addition, excessive currents will cause the switch to turn off in  
the FPF2500, FPF2501, FPF2503 and FPF2505. The  
FPF2500, FPF2503 and FPF2505 have an Auto-Restart feature  
which will automatically turn the switch on again after 640ms.  
For the FPF2501, the ON pin must be toggled to turn-on the  
switch again. The FPF2502, FPF2504 and FPF2506 does not  
turn off in response to an over current condition but instead  
remains operating in a constant current mode so long as ON is  
active and the thermal shutdown or under-voltage lockout have  
not activated.  
Under-Voltage Lockout  
The under-voltage lockout turns-off the switch if the input  
voltage drops below the under-voltage lockout threshold. With  
the ON pin active, the input voltage rising above the  
under-voltage lockout threshold will cause a controlled turn-on  
of the switch which limits current over-shoots.  
Thermal Shutdown  
The thermal shutdown protects the die from internally or  
externally generated excessive temperatures. During an  
over-temperature condition the switch is turned-off. The switch  
automatically turns-on again if the temperature of the die drops  
below the threshold temperature.  
9
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FPF2500-FPF2506 Rev. D4  
Application Information  
Typical Application  
VOUT  
VIN  
FPF2500-FPF2502  
R2=240  
OFF ON  
ON  
ISET  
Battery  
12V  
C2=1uF  
GND  
5.5V max  
C1=10uF  
RSET  
5.5V max  
VOUT  
VIN  
R1=100KΩ  
FPF2503-FPF2506  
R2=240Ω  
OFF ON  
ON  
Battery  
12V  
FLAGB  
-
C2=1uF  
GND  
5.5V max  
C1=10uF  
Setting Current Limit  
Current Limit Various R  
Values  
SET  
The FPF2500, FPF2501, and FPF2502 have a current limit  
which is set with an external resistor connected between ISET  
and GND. This resistor is selected by using the following  
equation,  
RSET  
[K]  
Min. Current  
Limit  
Typ. Current  
Limit  
Max. Current  
Limit  
[A]  
[A]  
[A]  
7.87  
10.0  
12.4  
14.7  
17.4  
20.5  
23.2  
26.7  
30.9  
34.8  
39.0  
43.2  
48.7  
53.6  
29.0  
64.9  
0.375  
0.450  
0.525  
0.600  
0.675  
0.750  
0.825  
0.900  
0.975  
1.050  
1.125  
1.200  
1.275  
1.350  
1.425  
1.500  
0.500  
0.600  
0.700  
0.800  
0.900  
1.000  
1.100  
1.200  
1.300  
1.400  
1.500  
1.600  
1.700  
1.800  
1.900  
2.000  
0.625  
0.750  
0.875  
1.000  
1.125  
1.250  
1.375  
1.500  
1.625  
1.750  
1.875  
2.000  
2.125  
2.250  
2.375  
2.500  
)
RSET = 12500 × ISET × e(0.485 × I  
SET  
(1)  
RSET is in Ohms and ISET is in Amps  
The following table can also be used to select RSET. A typical  
application would be the 0.500A current that is required by a  
single USB port. Using the table below an appropriate selection  
for the RSET resistor would be 12.4K. This will ensure that the  
port load could draw 0.525A, but not more than 0.875A.  
Likewise for a dual port system, an RSET of 34.8Kwould  
always deliver at least 1.050A and never more than 1.750A.  
Input Capacitor  
To limit the voltage drop on the input supply caused by transient  
in-rush currents when the switch turns-on into a discharged load  
capacitor or a short-circuit, a capacitor needs to be placed  
between VIN and GND. A 0.1uF ceramic capacitor, CIN, placed  
close to the pins is usually sufficient. Higher values of CIN can  
be used to further reduce the voltage drop.  
10  
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FPF2500-FPF2506 Rev. D4  
Output Capacitor  
Board Layout  
A 0.1uF capacitor COUT, should be placed between VOUT and  
GND. This capacitor will prevent parasitic board inductances  
from forcing VOUT below GND when the switch turns-off. For the  
FPF2501, FPF2503 and FPF2505, the total output capacitance  
needs to be kept below a maximum value, COUT(max), to prevent  
the part from registering an over-current condition and turning  
off the switch. The maximum output capacitance can be  
determined from the following formula,  
For best performance, all traces should be as short as possible.  
To be most effective, the input and output capacitors should be  
placed close to the device to minimize the effects that parasitic  
trace inductances may have on normal and short-circuit  
operation. Using wide traces for VIN, VOUT and GND will help  
minimize parasitic electrical effects along with minimizing the  
case to ambient thermal impedance.  
ILIM(min) × tBLANK(min)  
COUT(max) = -----------------------------------------------------------------  
(2)  
VIN  
Power Dissipation  
Due to the wide input voltage range that the parts can accept  
and the high currents at which the current limit can be set, care  
must be taken to prevent excessive power dissipation in the part  
from interrupting the switching of power to a load. During normal  
operation as a switch, the power dissipated in the part will  
depend upon the level at which the current limit is set. For a  
0.5A typical load, the power dissipated will typically be,  
P = (ILIM)2 × RDS = (0.5)2 × 0.23 = 58mW  
(3)  
This is well within the thermal capability of the package. The  
maximum allowed setting for the current limit is 2A and this will  
result in a power dissipation of typically,  
P = (ILIM)2 × RDS = (2)2 × 0.23 = 920mW  
(4)  
This is beyond the normal thermal capability of the package, but  
the thermal shutdown within the part will prevent damage by  
turning off the switch once the maximum junction temperature  
has been reached. If the part goes into current limit the  
maximum power dissipation will occur when the output is  
shorted to ground. For the FPF2500, FPF2503 and FPF2505  
the power dissipation will scale by the Auto-Restart Time,  
t
RESTART, and the Over Current Blanking Time, tBLANK, so that  
the maximum power dissipated is,  
tBLANK  
--------------------------------------------------  
P(max) =  
× VIN(max) × ILIM(max)  
t
RESTART + tBLANK  
5
(5)  
-------------------  
=
× 20 × 2.5= 388mW  
5 + 640  
This is more power than the package can dissipate, but the  
thermal shutdown of the part will activate to protect the part  
from damage due to excessive heating. The junction  
temperature will only be able to increase to the thermal  
shutdown threshold. Once this temperature has been reached,  
toggling ON will not turn-on the switch until the junction  
temperature drops. For the FPF2502, FPF2504 and FPF2506,  
a short on the output will cause the part to operate in a constant  
current state dissipating a worst case power of,  
(6)  
P(max) = VIN(max) × ILIM(max) = 20 × 2.5 = 50W  
This large amount of power will activate the thermal shutdown  
and the part will cycle in and out of thermal shutdown so long as  
the ON pin is active and the short is present.  
11  
www.fairchildsemi.com  
FPF2500-FPF2506 Rev. D4  
Dimensional Outline and Pad Layout  
12  
www.fairchildsemi.com  
FPF2500-FPF2506 Rev. D4  
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Across the board. Around the world.™  
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY  
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY  
ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT  
CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT  
EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN,  
WHICH COVERS THESE PRODUCTS.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR  
SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.  
As used herein:  
1. Life support devices or systems are devices or systems which,  
(a) are intended for surgical implant into the body, or (b)  
support or sustain life, or (c) whose failure to perform when  
properly used in accordance with instructions for use provided  
in the labeling, can be reasonably expected to result in  
significant injury to the user.  
2. A critical component is any component of a life support device  
or system whose failure to perform can be reasonably  
expected to cause the failure of the life support device or  
system, or to affect its safety or effectiveness.  
PRODUCT STATUS DEFINITIONS  
Definition of Terms  
Datasheet Identification  
Product Status  
Definition  
Advance Information  
Formative or In Design  
This datasheet contains the design specifications for product  
development. Specifications may change in any manner without  
notice.  
Preliminary  
First Production  
Full Production  
Not In Production  
This datasheet contains preliminary data, and supplementary data will  
be published at a later date. Fairchild Semiconductor reserves the right  
to make changes at any time without notice in order to improve design.  
No Identification Needed  
Obsolete  
This datasheet contains final specifications. Fairchild Semiconductor  
reserves the right to make changes at any time without notice in order  
to improve design.  
This datasheet contains specifications on a product that has been  
discontinued by Fairchild semiconductor. The datasheet is printed for  
reference information only.  
Rev. I23  
13  
www.fairchildsemi.com  
FPF2500-FPF2506 Rev. D4  

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