AOZ1341 Datasheet, PDF (1/16 Pages) Alpha & Omega Semiconductors – Dual Channel USB Switch

AOZ1341
Dual Channel USB Switch
General Description
The AOZ1341 is a member of Alpha and Omega
Semiconductor’s dual channel power distribution switch
family intended for applications where heavy capacitive
loads and short-circuits are likely to be encountered. This
device incorporates 70 mΩ N-channel MOSFET power
switches for power-distribution systems that require
multiple power switches in a single package. Each switch
is controlled by a logic enable input. Gate drive is
provided by an internal charge pump designed to control
the power-switch rise times and fall times to minimize
current surges during switching. The charge pump
requires no external components and allows operation
from supplies as low as 2.7 V.
The AOZ1341 is available in an Exposed Pad MSOP-8
or an SO8 8-pin package and is rated over the
-40 °C to +85 °C ambient temperature range.
Features
z Typical 70 mΩ (NFET)
z 1 A maximum continuous current
z V_IN Range: 2.7 V to 5.5 V
z Open Drain Fault Flag
z Fault Flag deglitched (blanking time)
z Discharge switch for shutdown
z Thermal shutdown
z Reverse current blocking
z Packages: Exposed Pad MSOP-8 and SO-8
Applications
z Notebook Computers
z Desktop Computers
Typical Application
V_IN
R2
10kΩ
R1
10kΩ
IN
OUT1
Cx
AOZ1341
OC1
EN1/EN1
OC2
EN2/EN2
GND
OUT2
C3
0.1μF
C1
22μF
LOAD
C4
0.1μF
C2
22μF
LOAD
Rev. 1.1 June 2011
www.aosmd.com
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