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APL3512 Datasheet(PDF) 1 Page - Anpec Electronics Coropration

Part # APL3512
Description  Power-Distribution Switches with Soft Start
Download  21 Pages
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Manufacturer  ANPEC [Anpec Electronics Coropration]
Direct Link  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

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Copyright
© ANPEC Electronics Corp.
Rev. A.6 - Aug., 2012
APL3512
www.anpec.com.tw
1
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Power-Distribution Switches with Soft Start
90m
Ω High Side MOSFET
2A Continuous Current
Soft-Start Time Programmable by External
Capacitor
Wide Supply Voltage Range: 2.7V to 5.5V
Current-Limit and Short-Circuit Protections
Under-Voltage Lockout Protection
Reverse Current Blocking when Switch Disabled
Over-Temperature Protection
Logic Level Enable Input
APL3512A: Active High
APL3512B: Active Low
Lead Free and Green Devices Available
(RoHS Compliant)
Features
General Description
Applications
TFT LCD Modules
Notebook and Desktop Computers
USB Ports
High-Side Power Protection Switches
Simplified Application Circuit
The APL3512A/B is a power-distribution switch with some
protection functions that can deliver current up to 2A. The
device incorporates a 90m
Ω N-channel MOSFET power
switch that is controlled by an enable logic pin and has a
SS pin dedicated to soft-start ramp-up rate control that
can be used in application where the inrush current is
concerned.
The device integrates some protection features, includ-
ing current-limit protection, short-circuit protection, over-
temperature protection, and UVLO. The current-limit and
short-circuit protection can protect down-stream devices
from catastrophic failure by limiting the output current at
current-limit threshold during over-load or short-circuit
events. When V
OUT drops below VIN-1.5V the devices limit
the current to a lower and safe level. The over-tempera-
ture protection function shuts down the N-channel
MOSFET power switch when the junction temperature
rises beyond 140oC and will automatically turns on the
power switch when the temperature drops by 20oC. The
UVLO function keeps the power switch in off state until
there is a valid input voltage present.
The device is available in lead free SOT-23-5, TDFN2x2-
6 and SOP-8 packages with enable active-high(EN) and
active-low(ENB) versions.
VIN
VOUT
GND
APL3512A/B
SS
EN/ ENB
V
IN
V
OUT
EN
Control


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