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FPF2702 Datasheet PDF - Fairchild Semiconductor


Adjustable Over-Current Protection Load Switches

Numéro de référence FPF2702
Description Adjustable Over-Current Protection Load Switches
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor Logo 
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20 Pages
		
FPF2702 Datasheet

1 Page

FPF2702 Fiche technique
Pin Configurations
VOUT 8
FLAGB 7
NC 6
GND
1 VIN
2 PGOOD
3 ISET
GND 5
4 ON
Figure 6. MLP (Bottom View)
VIN 1
PGOOD 2
ISET 3
ON 4
8 VOUT
7 FLAGB
6 NC
5 GND
Figure 7. SO8 (Top View)
Pin Definitions
Pin #
1
2
3
4
5
6
7
8
Name
VIN
PGOOD
ISET
ON
GND
NC
FLAGB
VOUT
Description
Supply Input. Input to the power switch and the supply voltage for the IC.
Power-Good Output. Open-drain output to indicate that output voltage has reached 90% of
input voltage.
Current Limit Set Input. A resistor from ISET to ground sets the current limit for the switch.
ON Control Input. Active LOW.
Ground
No connection. Leave open or connect to ground.
Fault Output. Active LOW, open-drain output that indicates current limit, under-voltage, or
over-temperature state.
Switch Output. Output of the power switch.
© 2010 Fairchild Semiconductor Corporation
FPF2700 / FPF2701 / FPF2702 Rev. 1.0.3
3
www.fairchildsemi.com

3 Page

FPF2702 pdf
Timing Diagram
VOUT
VON
90
10 %
%
tR
3.3
V
50
%
90
% 10
%
tF
50
%
VOUT
10
%
90
%
tdon tdoff
tON = tR + tdon tOFF = tF + tdoff
Figure 12. Timing Diagram
Typical Performance Characteristics
VIN = 12 V and TA = 25°C.
1.40
TA = 25°C
1.38
1.35
1.33
VIH
1.30
1.28
1.25
1.23
1.20
0
VIL
5 10 15 20 25 30 35 40
Supply Voltage (V)
Figure 13. ON Threshold vs. Supply
1.80
1.70 VIN = 12V
1.60
1.50
1.40
1.30
VIL
1.20
1.10
1.00
0.90
0.80
-50
-25
0
VIH
25 50 75
TJ, Junction Temperature (oC)
100
125
Figure 14. ON Threshold vs. Temperature
150
130
VON = 0V
120
110
100
90
80
70
TA = 125°C
TA = 85°C
TA = 25°C
TA = -40°C
12
VON = 5V
10
8
6
4
2
TA = 85°C
TA = 125°C
TA = -40°C
TA = 25°C
60
0
5 10 15 20 25 30 35 40
Supply Voltage (V)
0
0 5 10 15 20 25 30 35 40
Supply Voltage (V)
Figure 15. Quiescent Current vs. Supply Voltage (ON) Figure 16. Quiescent Current vs. Supply Voltage (OFF)
© 2010 Fairchild Semiconductor Corporation
FPF2700 / FPF2701 / FPF2702 Rev. 1.0.3
6
www.fairchildsemi.com

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