DATA SHEET
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Full-Function Load Switch
with Adjustable Current
Limit
WLCSP6 1.48x0.98x0.582
CASE 567RN
FPF2193, FPF2194,
FPF2195
MARKING DIAGRAM
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 mW
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 can be
set as low as 45 mA.
These parts are available in a space−saving six ball advanced 0.98 x
1.48 mm WLCSP package.
Features
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March, 2022 − Rev. 3
Sx
&K
&.
&2
&Z
= Device Code (x = 6, 7, 9, Y)
= 2−Digits Lot Run Traceability Code
= Pin One Dot
= 2−Digit Date Code
= Assembly Plant Code
ORDERING INFORMATION
See detailed ordering and shipping information on page 13 of
this data sheet.
Applications
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