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PDF FPF2024 Data sheet ( Hoja de datos )

Número de pieza FPF2024
Descripción Full Functional Load Switch
Fabricantes Fairchild Semiconductor 
Logotipo Fairchild Semiconductor Logotipo



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No Preview Available ! FPF2024 Hoja de datos, Descripción, Manual

April 2016
FPF2024/25/26/27
Full Functional Load Switch with 100 mA Current Limit
Features
1.6 V to 5.5 V Input Voltage Range
Ultra Low Average Quiescent Current 1 μA
Typical at1.8 V
Typical RDS(ON) = 225 at VIN = 3.3 V
Typical RDS(ON) = 280 at VIN = 1.8 V
100 mA Fixed Current Limit Minimum
Under-Voltage Lockout (UVLO)
CMOS and Open Drain Fault Flag Options
Fault Blanking
Auto Restart
Thermal Shutdown
ESD Protection
o >5500 V HBM
o >1500 V CDM
Applications
PDAs
Cell Phones
GPS Devices
Digital Cameras
Peripheral Ports
MP3 Players
Description
The FPF2024/5/6/7 are low RDS(ON) P-Channel MOSFET
load switches with 150 mA typical current limit value
targeting small package load switch applications. The
extended input voltage range spans from 1.6 V to 5.5 V
to fulfill today's ultra-portable device's supply
requirements. Switch control is by a logic input (ON)
capable of interfacing directly with a low voltage control
signal.
The FPF2024/25/26/27 respond to an output overload
condition by going into constant current mode where the
output current is regulated by the load switch. If the
over-current condition persists beyond the 10 ms
Blanking Time, the FPF2024 and FPF2025 pull the fault
signal pin (FLAGB) low and shut-off the switch. An Auto-
Restart feature turns the FPF2024 and FPF2025 on
again after 70 ms if the ON pin is still active. The
FPF2026 has a Latch-Off feature which shuts off the
switch off after the expiration of the 10 ms Blanking
Time and keeps it off until the ON pin is toggled. The
FPF2027 responds to an overload condition by
immediately pulling the fault signal pin LOW and the
switch remains in constant current mode until the output
overload condition is removed. The FPF2027 has a
Startup Blanking feature which prevents startup
transient over-current conditions from triggering the fault
signal pin for 10 ms after initial turn on via the ON pin.
These parts are available in a space-saving 6-ball
advanced. Pb-Free 1.0 x1.5 mm2 CSP package.
© 2008 Fairchild Semiconductor Corporation
FPF2024/25/26/27 • Rev. 1.1
Figure 1. 6-Ball 1.0 x1.5 mm2 CSP Package
www.fairchildsemi.com

1 page




FPF2024 pdf
Electrical Characteristics
Unless otherwise noted, VIN=1.6 to 5.5 V and TA=-40 to +85°C. Typical values are at VIN=3.3 V and TA=25°C.
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
Basic Operation
VIN
IQ
ISD
RON
VIH
VIL
ION
ISWOFF
Operating Voltage
Quiescent Current
Shutdown Current
On Resistance
On Input Logic HIGH Voltage
On Input Logic LOW Voltage
On Input Leakage
Off Switch Leakage
FLAGB Output Logic Low Voltage
FLAGB Output Logic High Voltage
FLAGB Output High Leakage
Current
IOUT=0 mA, VON Active, VIN=1.8 V
(Average)
VON=VIN, (FPF2025) VON=GND
(FPF2024/26/27), IOUT=0
TA=25°C, VIN=5.5 V
TA=-40 to 85°C, VIN=5.5 V
TA=25°C,VIN=3.3 V
TA= -40 to +85°C, VIN=3.3 V
TA= 25°C,VIN=1.6 V
TA= -40 to +85°C, VIN=1.6 V
VIN=1.6 V
VIN=5.5 V
VIN=1.6 V
VIN=5.5 V
VON=VIN or GND
VON=VIN, VOUT=0 V
VIN=5.5 V, ISINK=1 mA
VIN=1.8 V, ISINK=1 mA
VIN=5.5 V, ISOURCE=1 mA, FPF2025
VIN=1.6 V, ISOURCE=1 mA, FPF2025
VIN=5.5 V, Switch On,
FPF2024, FPF2026, FPF2027
1.6
120
140
180
0.8
1.5
5.2
1.20
1
215
215
225
225
305
305
0.1
0.1
5.4
1.35
5.5 V
4 μA
1 μA
315
350
325
360
490
580
V
0.45
V
0.9
1.0 μA
1.0 μA
0.2
V
0.3
V
1.0 μA
Protections
ILIM Current Limit
Thermal Shutdown
VIN=3.3 V, VOUT=3.0 V,TA=25°C
Shutdown Threshold TJ Increasing
Return from Shutdown
100 150 200 mA
140
130 °C
Hysteresis
10
UVLO
Under-Voltage Lockout
UVLOH Under-Voltage Lockout Hysteresis
Dynamic Characteristics
tON Turn-On Time
tOFF Turn-Off Time
tRISE
VOUT Rise Time
tBLANK Over-Current Blanking Time
TSTART_BLANK Startup FLAGB Blanking Time
tRSTRT Auto-Restart Time
Sleep Mode Duration
VIN Increasing
RL = 500 Ω, CL = 0.1 μF
RL = 500 Ω
RL = 500 Ω, CL = 0.1 μF
FPF2024, FPF2025, FPF2026
FPF2027(2)
FPF2024, FPF2025
1.475 1.525 1.575 V
40 mV
5
5
35
128.5
70
10
30
10
10
70
257.0
20
20
140
514.0
μs
μs
μs
ms
ms
ms
ms
Wake-up Mode Duration
0.5 1.0 2.0 ms
Duty Cycle
Current Limit Response Time
Blanking/Auto-Restart Duty Ratio
Wake-up: Sleep Mode Duty Cycle
Moderate Over-Current Condition
RL= 5
tBLANK /tRSTRT (Internally Fixed)
FPF2024, FPF2025
1:257
15
1:7
μs
Note:
2. FPF2027 has a 10 ms Startup FLAGB Blanking Time when the part is turned on via ON pin to ensure transient
load currents settle down.
© 2008 Fairchild Semiconductor Corporation
FPF2024/25/26/27 Rev. 1.1
5
www.fairchildsemi.com

5 Page





FPF2024 arduino
Current Limiting
The current limit function ensures that the current
through the switch does not exceed a maximum value
while not limiting at less than a minimum value. The
minimum current at which the parts will limit the load
current is internally set to 100 mA.
The switch current limiting circuitry is active at all times
(Sleep and Wakeup mode) and protects the FPF2024-
FPF2027 against excessive load currents in all modes.
The proprietary current limiting circuit responds to an
over-current condition in 15 μs (typical).
Under-Voltage Lockout (UVLO)
The under-voltage lockout feature 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 and will limit
current over-shoots. The UVLO feature is disabled
during Sleep mode. If device is in the UVLO condition,
FLAGB goes low and indicates the fault. If the input
voltage goes below UVLO voltage but remains above
1.3 V (typical) during Sleep mode, the switch is kept on
until the next Wakeup cycle, where the UVLO violation
will be detected. If the input voltage falls below 1.3 V in
Sleep mode, the switch is immediately turned off.
Thermal Shutdown
The Thermal Shutdown protects the device from
internally or externally generated excessive
temperatures. The Thermal shutdown feature is
disabled during Sleep mode. However, excessive load
currents that may result in high power dissipation will be
detected during Sleep mode and will activate the full
function Wakeup mode, which has thermal shutdown
protection. During an over-temperature condition the
FLAGB is pulled low and the switch is turned-off. If the
temperature of the die drops below the threshold
temperature, the switch automatically turns on again, To
avoid unwanted thermal oscillations, a 10°C (typical)
thermal hysteresis is implemented between thermal
shutdown entry and exit temperatures.
Figure 25. State Diagram with Blanking and Auto-Restart (FPF2024/5)
© 2008 Fairchild Semiconductor Corporation
FPF2024/25/26/27 Rev. 1.1
11
www.fairchildsemi.com

11 Page







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