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データシート FPF2701 PDF ダウンロード ( 特性, スペック, ピン接続図 )

部品番号 FPF2701
部品説明 Adjustable Over-Current Protection Load Switches
メーカ Fairchild Semiconductor
ロゴ Fairchild Semiconductor ロゴ 
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FPF2701 Datasheet, FPF2701 PDF,ピン配置, 機能
December 2013
FPF2700 / FPF2701 / FPF2702 — AccuPower™ 0.4~2 A
Adjustable Over-Current Protection Load Switches
Features
2.8 V to 36 V Input Voltage Range
Typical RDS(ON)=88 m
0.4 A to 2 A Adjustable Current Limit (Min.)
Slew Rate Controlled
ESD Protected, above 2000 V HBM
Thermal Shutdown
Active LOW Enable
UVLO Protection
Power-Good Output
Applications
Motor Drives
Digital Cameras
Consumer Electronics
Industrial
Computing
Hard Disk Drives
Telecom Equipment
Description
The AccuPowerFPF270X series is a family of
current-limit load switches that provide full protection to
systems and loads from excess current conditions.
Minimum current limit is adjustable from 0.4 A to 2.0 A.
The FPF270X contains a slew-rate-controlled N-channel
MOSFET and slew-rated turn-on to prevent power bus
disturbances from being caused by hot pluggingloads
or momentary excess load demands. The input voltage
range is 2.8 V to 36 V. Loads can be activated or
deactivated with a low-voltage logic-compatible ON pin.
Fault conditions can be monitored using the error flag
pin and/or the power-good pin.
Each member of the FPF270X family serves a category
of load-fault response. All devices clamp the load
current so that it cannot exceed an externally
programmed current level. An over temperature feature
provides further device protection in case of excessive
levels of power dissipation.
FPF2700 responds to an overload condition that lasts
longer than a fixed blanking period by turning off the
load, followed by a retry after the auto-restart time.
FPF2701 responds to an overload condition that lasts
longer than a fixed blanking period by latching off the
load. The load remains off unless either the ON pin is
toggled or the input voltage cycles through UVLO.
Figure 1. MLP (Top View) Figure 2. MLP (Bottom View)
FPF2702 is intended to be used with external fault
management. Like the FPF2700 and FPF2701, it sets
the fault signal pin LOW when it activates current
clamping. This device is intended for applications where
external fault management coordinates the overload
response with the FPF2702.
Figure 3. SO8 (Top View)
The FPF270X is available in a space-saving, Lead and
Halogen free, 8-lead, MLP 3x3 mm and SO8 packages.
Ordering Information
Part
Number
FPF2700MPX
FPF2701MPX
FPF2702MPX
FPF2700MX
FPF2701MX
FPF2702MX
Current Limit [A]
0.4 2.0
0.4 2.0
0.4 2.0
0.4 2.0
0.4 2.0
0.4 2.0
Current Limit
Blanking Time [ms]
0.5
0.5
NA
0.5
0.5
NA
© 2010 Fairchild Semiconductor Corporation
FPF2700 / FPF2701 / FPF2702 • Rev. 1.0.3
Auto-Restart
Time [ms]
127.5
NA
NA
127.5
NA
NA
ON Pin
Activity
Active LOW
Active LOW
Active LOW
Active LOW
Active LOW
Active LOW
Package
MLP3X3
MLP3X3
MLP3X3
SO8
SO8
SO8
www.fairchildsemi.com

1 Page



FPF2701 pdf, ピン配列
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


3Pages


FPF2701 電子部品, 半導体
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

6 Page





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