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PDF FPF2310 Datasheet ( Hoja de datos )

Número de pieza FPF2310
Descripción (FPF2310 - FPF2313) Dual-Output Adjustable Current Limit Switch
Fabricantes Fairchild Semiconductor 
Logotipo Fairchild Semiconductor Logotipo

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FPF2310 Hoja de datos, Descripción, Manual
FPF2310/12/13/13L
Dual-Output Adjustable Current Limit Switch
June 2009
Features
! 1.8 to 5.5V Input Voltage Range
! Typical RON = 75mat IN = 5.5V
! 400~600mA Adjustable Current Limit
! 10% Current Limit Accuracy from Typical
! Slew Rate Controlled
! ESD Protected, Above 4000V HBM
! Independent Thermal Shutdown
! UVLO
! Output Discharge
! RoHS Compliant
Applications
! Smart Phones
! Enterprise Equipment
! Peripheral USB Ports and Accessories
Description
The FPF2310/12/13/13L are dual-channel load switches
of IntelliMAX™ family. The FPF2310/12/13/13L consist
of dual, independent, current-limited, and slew rate
controlled, P-channel MOSFET power switches. Slew
rated turn-on prevent inrush current from glitching supply
rails. The input voltage range operates from 1.8V to 5.5V
to fulfill today's USB device supply requirements. Switch
control is accomplished by a logic input (ON) capable of
interfacing directly with low-voltage control signal.
For the FPF2312, if the constant current condition
persists after 10ms, these parts shut down the switch.
The FPF2310 has an auto-restart feature that turns the
switch on again after 150ms if the ON pin is still active.
FPF2313/13L remains in the constant-current mode until
the switch current falls below the current limit. For the
FPF2310 through FPF2313/13L, the minimum current
limit is 400mA-600mA with 10% accuracy (+25°C) for
each switch to comply with USB applications in portable
devices.
FPF2310M/12/13/13L series is available in a space-
saving, 8-Lead, 3X3mm MLP.
www.DataSheet4U.com
Ordering Information
Figure 1. 8 Lead MLP (3x3mm)
Part Number
Minimum
Current
Limit
Current Limit
Blanking
Time
Eco
Status
Auto
Restart
ON Pin
Activity
Mode
Package
FPF2310MPX 400-600mA
10ms
Green
150ms
Active HIGH
Restart
8-Lead Molded Lead-
less Package (MLP)
FPF2312MPX 400-600mA
10ms
Green
N/A
Active HIGH
Latch Off
8-Lead Molded Lead-
less Package (MLP)
FPF2313MPX 400-600mA
0ms
Green
N/A
Active HIGH
Constant
Current
8-Lead Molded Lead-
less Package (MLP)
FPF2313LMPX 400-600mA
0ms
Green
N/A
Active LOW
Constant 8-Lead Molded Lead-
Current less Package (MLP)
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2009 Fairchild Semiconductor Corporation
FPF2310/12/13/13L • Rev. 1.1.2
www.fairchildsemi.com

1 page

FPF2310 pdf
Electrical Characteristics
IN = 1.8 to 5.5V, TA = -40 to +85°C unless otherwise noted. Typical values are at IN = 3.3V and TA = 25°C.
Symbol Parameter
Conditions
Min. Typ. Max. Units
Basic Operation
VIN Operating Voltage
1.8 5.5 V
IQ Quiescent Current
IN = 5.5V, IOUT = 0mA,
VON = 5.5V (FPF2310/2/3), VON = 0V (FPF2313L)
52.5 94.5 μA
ISD IN Shutdown Current
IN = 5.5V, OUTA = OUTB = Short to GND,
VON = 0V (FPF2310/2/3), VON = 5.5V (FPF2313L)
1 μA
RON On Resistance
IN = 5.5V, IOUT = 200mA, TA = 25°C
IN = 5.5V, IOUT = 200mA, TA = -40°C to +85°C
75 140
m
90
RPD Output Pull-Down Resistance
IN = 3.3V, TA = 25°C
VON = 0V (FPF2310/2/3), VON = 3.3V(FPF2313L)
70
IN = 1.8V
VIH
ON Input Logic High Voltage (ON)
IN = 5.5V
0.8
V
1.4
VIL ON Input Logic Low Voltage
IN = 1.8V
IN = 5.5V
0.5
V
0.9
ION ON Input Leakage
Protections
VON = IN or GND
-1 1 μA
ILIM Current Limit
IN = 3.3V, OUTA = OUTB = 3V,
RSET = 690, TA = 25°C
Shutdown Threshold
450 500 550
140
mA
TSD Thermal Shutdown
Return from Shutdown
130 °C
Hysteresis
10
VUVLO Under-Voltage Shutdown
VUVLO_HYS
Under-Voltage Shutdown
Hysteresis
IN Increasing
1.55 1.65 1.75
50
V
mV
Dynamic
tON Turn-On Time
tOFF Turn-Off Time
www.DataSheet4tUR.com OUTA, OUTB Rise Time
tF OUTA, OUTB Fall Time
tBLANK Over-Current Blanking Time
tRSTRT Auto-Restart Time
tCLR Current Limit Response Time
RL = 500, CL = 0.1μF
RL = 500
RL = 500, CL = 0.1μF
RL = 500
FPF2310, FPF2312
FPF2310
IN = 3.3V, Moderate Over-Current Condition
111
5
13
2
5 10 20
75 150 300
20
μs
μs
μs
μs
ms
ms
μs
OUT
10%
90%
tR
90%
10%
tF
ON 50%
50%
© 2009 Fairchild Semiconductor Corporation
FPF2310/12/13/13L • Rev. 1.1.2
OUT
10%
90%
tDON
tDOFF
tON = tR + tDON
tOFF = tF + tDOFF
Figure 5. Timing Diagram
5
www.fairchildsemi.com

5 Page

FPF2310 arduino
Description of Operation
The FPF2310/2/3/3L are dual-output current-limit switches
designed to meet notebook computers, peripheral USB ports, and
point-of-load (POL) application power requirements. Dual-output
current can be used where two USB ports are powered by hosts or
self-powered hubs. The FPF231X family offers control and
protection while providing optimum operation current for a safe
design practice. The core of each switch is a typical 75m(IN =
5.5V) P-channel MOSFET and a controller capable of functioning
over an input operating range of 1.8 to 5.5V. The FPF231X family
offers current limiting, UVLO (under-voltage lockout), and thermal
shutdown protection per each switch. In the event of an over-
current condition, the load switch limits the load to current limit
value. The current limit value for each switch can be adjusted
through the ISET pins. 400mA-600mA is adjustable for the
FPF2310 through FPF2313. The minimum current limit is 400mA-
600mA with 10% accuracy at +25°C with minimum variation over
temperature.
On/Off Control
The ON pin is active HIGH for FPF2310/2/3 and controls the state
of the switch. Pulling the ON pin continuous to HIGH holds the
switch in the ON state. The switch moves into the OFF state when
the ON pin is pulled LOW or if a fault is encountered. FPF2313L is
active LOW and performs in reverse order. For all versions, an
under-voltage on input voltage or a junction temperature in excess
of 140°C overrides the ON control to turn off the switch. In addition,
excessive currents cause the switch to turn off in the FPF2310 and
FPF2312 after 10ms blanking time. The FPF2310 has an auto-
restart feature that automatically turns the switch ON again after
150ms. For the FPF2312, the ON pin must be toggled to turn on
the switch again. The FPF2313 and FPF2313L do not turn off in
response to an over-current condition, but remain operating in a
constant-current mode as long as ON is enabled and the thermal
shutdown or UVLO is not activated. The ON pin does not have a
pull-down or pull-up resistor and should not be left floating.
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
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has dual-output load switches in
each switch is adjustable through
the an external resistor connected to the ISET pin. The current limit
range is from 400mA to 600mA with 10% current limit tolerance.
The FPF2310 and FPF2312 have a blanking time of 10ms
(tBLANK(Typ) = 10ms) during which the switch acts as a constant
current source.
If the over-current condition persists beyond the blanking time, the
FPF2310 latches off and shuts the switch off. If the ON pin is kept
active, an auto-restart feature releases the switch and turns the
switch on again after a 150ms auto-restart time (tRSTRT). If the
over-current condition persists beyond the blanking time, the
FPF2312 has a latch-off feature that shuts the switch off. The
switch is kept off until the ON pin is toggled. The FPF2313/3L have
no current-limit blanking period, so remain in a constant-current
state until the ON pin of the affected switch is deactivated or the
thermal shutdown turns off the switch.
ON
VIN
VOUT
ILOAD
tBLANK
RL*ILMIT
tRSTRT
ILIMIT
Over
current
condtion
Figure 33. FPF2310 Performance While Entering into
an Over-Current Condition.
Note:
3. An over-current condition signal loads the output with a
heavy load current larger than ILIM value.
ON
VIN
VOUT
ILOAD
ILIMIT
Over
current
condtion
Thermal Shutdown
Device Cools Off
Figure 34. FPF2313 Performance While Entering into
an Over-Current Condition
Note:
4 An over-current condition signal loads the output with a
heavy load current larger than ILIM value.
© 2009 Fairchild Semiconductor Corporation
FPF2310/12/13/13L • Rev. 1.1.2
11
www.fairchildsemi.com

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