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FPF2223 Datasheet

  • FPF2223

  • Integrated Load Switch with Adjustable High Precision Curren...

  • 14頁

  • FAIRCHILD

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FPF2223-FPF2225 Integrated Load Switch with Adjustable High Precision Current Limit
June 2008
FPF2223-FPF2225
Features
1.8 to 5.5V Input Voltage Range
Typical R
DS(ON)
= 140m
Typical R
DS(ON)
= 160m
Integrated Load Switch with Adjustable High Precision Current Limit
General Description
@ V
IN
= 5.5V
@ V
IN
= 3.3V
tm
250-625mA (min) Adjustable Current Limit
5% Current Limit Tolerance @ 625mA (min)
72
(typ) Output Discharge Resistance
ESD Protected, Above 8kV HBM and 2kV CDM
The FPF2223-FPF2225 are low R
DS(ON)
P-Channel MOSFET
load switches with high precision current limit value. The input
voltage range operates from 1.8V to 5.5V to fulfill today's Ultra
Portable Device's supply requirement. Switch control is by a
logic input (ON) capable of interfacing directly with low voltage
control signal. On-chip pull-down is available for output quick
discharge when switch is turned off.
For the FPF2224, if the constant current condition still persists
after 30ms, these parts will shut off the switch and pull the fault
signal pin (FLAGB) low. The FPF2223 has an auto-restart
feature, which will turn the switch on again after 450mS if the
ON pin is still active. The FPF2224 do not have this auto-restart
feature so the switch will remain off until the ON pin is cycled.
For the FPF2225, a current limit condition will immediately pull
the fault signal pin low and the part will remain in the constant-
current mode until the switch current falls below the current
limit. For the FPF2223 through FPF2225, the current limit is set
by an external resistor and the minimum current limit is 250mA.
Applications
PDAs
Cell Phones
GPS Devices
MP3 Players
Digital Cameras
Peripheral Ports
Notebook Computer
Pin 1
BOTTOM
TOP
Ordering Information
Part
FPF2223
FPF2224
FPF2225
Current Limit
(mA)
250-625
250-625
250-625
Current Limit
Blanking Time
(mS)
30
30
NA
Auto-Restart Time
(mS)
450
NA
NA
ON Pin
Activity
Active HI
Active HI
Active HI
漏2008 Fairchild Semiconductor Corporation
FPF2223-FPF2225 Rev. B
1
www.fairchildsemi.com

FPF2223 產(chǎn)品屬性

  • 3,000

  • 集成電路 (IC)

  • PMIC - 電源分配開關(guān)

  • -

  • 高端開關(guān)

  • 1

  • 185 毫歐

  • 是

  • 可調(diào)

  • 1.8 V ~ 5.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 6-MLP

  • 6-MicroFET（2x2）

  • 帶卷 (TR)

  • FPF2223TR

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