FPF2195 查看數據表（PDF） - Fairchild Semiconductor

零件编号

产品描述 (功能)

生产厂家

FPF2195

Full-Function Load Switch with Adjustable Current Limit

Fairchild Semiconductor 

December 2012

FPF2193 / FPF2194 / FPF2195

Full-Function Load Switch with Adjustable Current Limit

Features

 <1.8 to 5.5 V Input Voltage Range

 Controlled Turn-On

 0.1 to 1.5 A Adjustable Current Limit

 Under-Voltage Lockout

 Thermal Shutdown

 <2 µA Shutdown Current

 Auto Restart

 Fast Current Limit Response Time

 5 µs to Moderate Over Currents

 30 ns to Hard Shorts

 Fault Blanking

 Reverse Current Blocking

Applications

 PDAs

 Cell Phones

 Handheld GPS Devices

 Portable Enterprise / Industrial Devices

 Digital Cameras

 Peripheral Ports and Accessories

 Portable Medical Equipment

 Hot Swap Supplies

Description

The FPF2193, FPF2194, and FPF2195 form a series of

load switches that provides full protection to systems

and loads that may encounter large current conditions.

These devices contain a 55 mΩ current-limited P-

channel MOSFET that can operate over an input voltage

range of 1.8 to 5.5 V. Internally, current is prevented

from flowing when the MOSFET is off and the output

voltage is higher than the input voltage. Switch control is

by a logic input (ON) capable of interfacing directly with

low-voltage control signals. Each part contains thermal

shutdown protection that 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

parts operate in a constant-current mode to prohibit

excessive currents from causing damage. For the

FPF2193 and FPF2194, if the constant current condition

still persists after 30 ms, the parts shut off the switch

and pull the fault signal pin (FLAGB) LOW. The

FPF2193 has an auto-restart feature that turns the

switch on again after 450 ms if the ON pin is still active.

The FPF2194 does not have this auto-restart feature, so

the switch remains off until the ON pin is cycled. The

FPF2195 does not turn off after a current limit fault, but

remains in the constant-current mode indefinitely. The

minimum current limit is 100 mA.

These parts are available in a space-saving six ball

advanced 1 x 1.5 mm WLCSP package.

Ordering Information

Part

Number

FPF2193

FPF2194

FPF2195

Current

Limit [mA]

100-1500

Current Limit Blanking

Time [ms]

15/30/60

15/30/60

0

Auto-Restart

Time [ms]

225/450/900

NA

NA

ON Pin

Activity

Active HIGH

Top Mark

S6

S7

S9

© 2009 Fairchild Semiconductor Corporation

FPF2193/4/5 • Rev. 1.0.5

www.fairchildsemi.com

Share Link: