Power-Distribution Switches
APL3550/1
Power-Distribution Switches
Features
• 70mΩ (MSOP-8) High Side MOSFET • Wide Supply Voltage Range: 2.7V to 5...
Description
APL3550/1
Power-Distribution Switches
Features
70mΩ (MSOP-8) High Side MOSFET Wide Supply Voltage Range: 2.7V to 5.5V Current-Limit and Short-Circuit Protections Over-Temperature Protection Fault Indication Output Enable Input UL Approved-File No. E328191 UL-CB Scheme IEC/EN62368-1 Certified TUV IEC/EN62368-1 Certified Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APL3550/1 series of power switches integrate a
70mΩ N-channel MOSFET power switch, an enable in-
put pin, a fault flag and some protection functions into a
single package.
The protection features include current-limit protection,
short-circuit protection, and over-temperature protection.
The device limits the output current at current limit thresh-
old level. When V drops below V -1V, the devices limit
OUT
IN
the current to a lower and safe level. The over-tempera-
ture protection limits the junction temperature below
140oC in case of short circuit or over load conditions.
Other features include a deglitched OCB output to indi-
cate the fault condition and an enable input to enable or
disable the device.
Applications
Notebook and Desktop Computers USB Ports High-Side Power Protection Switchs MHL Ports
Pin Configurations
Simplified Application Circuit
5V
USB Controller
VIN
VOUT
APL3550A/B/C/D/E/F APL3551A/B/C/D
OCB
EN/ENB
GND
USB Port
GND 1 VIN 2 VIN 3 EN 4
SOP-8/MSOP-8 APL3550A/C (Top View)
8 VOUT 7 VOUT 6 VOUT 5 OCB
OCB 1 GN...
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