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FPF2700 функция - Adjustable Over-Current Protection Load Switches - Fairchild Semiconductor

Номер произв FPF2700
Описание Adjustable Over-Current Protection Load Switches
Производители Fairchild Semiconductor 
логотип Fairchild Semiconductor логотип 
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FPF2700 Даташит, Описание, Даташиты
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





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