FPF2503

FPF2503 Datasheet


FPF2500-FPF2506 IntelliMAX Advanced Load Management Products

Part Datasheet
FPF2503 FPF2503 FPF2503 (pdf)
Related Parts Information
FPF2504 FPF2504 FPF2504
FPF2502 FPF2502 FPF2502
FPF2506 FPF2506 FPF2506
FPF2505 FPF2505 FPF2505
FPF2501 FPF2501 FPF2501
FPF2500 FPF2500 FPF2500
PDF Datasheet Preview
FPF2500-FPF2506 IntelliMAX Advanced Load Management Products

January 2008

FPF2500-FPF2506 tm

IntelliMAX Advanced Load Management Products
- to 20V Input Voltage Range - Controlled Turn-On - 0.4A, 0.8A and Adjustable Current Limit Option - Undervoltage Lockout - Thermal Shutdown - <10µA Shutdown Current - Auto Restart - Fault Blanking - RoHS Compliant
- PDAs - Motor Drivers - Cell Phones - Digital Cameras

The FPF2500 through FPF2506 is a family of load switches which provide full protection to systems and loads which may encounter large current conditions. These devices contain a current-limited N-channel MOSFET which can operate over an input voltage range of 4.5-20V. Switch control is by a logic input ON capable of interfacing directly with low voltage control signals. Each part contains thermal shutdown protection which shuts off the switch to prevent damage to the part when a continuous over-current condition causes excessive heating.

When the switch current reaches the current limit, the part operates in a constant-current mode to prohibit excessive currents from causing damage. For the FPF2500, FPF2501, FPF2503 and FPF2505, if the constant current condition still persists after 5ms, these parts will shut off the switch and, for the FPF2503 and FPF2505, the fault signal pin FLAGB will be pulled low. The FPF2500, FPF2503, and FPF2505, have an auto-restart feature which will turn the switch on again after 640ms if the ON pin is still active. The FPF2501 does not have this auto-restart feature so the switch will remain off until the ON pin is cycled. For the FPF2502, FPF2504 and FPF2506, 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 FPF2500 through FPF2502, the minimum current limit is adjustable from 500mA to 2A. For the FPF2503 and FPF2504 the minimum current is internally fixed at 400mA while that for the FPF2505 and FPF2506 is internally fixed at 800mA.

These parts are available in a space-saving 5 pin SOT23 package.
Ordering Information

Part

FPF2500 FPF2501 FPF2502 FPF2503 FPF2504 FPF2505 FPF2506

Current Limit [A]

Adjustable +/-30% Adjustable +/-30% Adjustable +/-30%

Current Limit Blanking Time
[ms]

Auto-Restart Time [ms]
320/640/1280 NA
320/640/1280 NA
320/640/1280 NA

Fault Pin

No Yes
2008 Fairchild Semiconductor Corporation

FPF2500-FPF2506 IntelliMAX Advanced Load Management Products

Typical Application Circuit

OFF ON 5.5V max

VOUT

FPF2500-FPF2502

ISET

TO LOAD

VOUT

FPF2503-FPF2506
5.5V max TO LOAD

OFF ON

FLAGB
5.5V max

Functional Block Diagram

UVLO

THERMAL SHUTDOWN

CONTROL LOGIC

CURRENT LIMIT

FPF2500, FPF2501, FPF2502

UVLO

THERMAL SHUTDOWN

CONTROL LOGIC

FPF2503, FPF2504 FPF2505, FPF2506

CURRENT LIMIT

VOUT ISET GND

VOUT FLAGB

FPF2500-FPF2506 IntelliMAX Advanced Load Management Products
More datasheets: AEO20G48N-S | ALO25Y48N-S | ALO25M48N-S | ALO25K48N-S | ALO20G48N-S | ALO20F48N-S | ALO12A48N-S | ALO04B48N-S | AEO12A48N-S | FPF2504


Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived FPF2503 Datasheet file may be downloaded here without warranties.

Datasheet ID: FPF2503 514981