APL3518

APL3518/9 USB Power-Distribution Switches Features 62mΩ 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 Nemko IEC 60950-1:2005(2nd Edition); Am 1:2009 CB Scheme Certified, No.62377 TUV IEC 60950-1:2005+A1:2009 and EN 60950-1:2006+A11:2009+A1:2010 Certified, No.44 780 11 393954 Lead Free and Green Devices Available (RoHS Compliant) General Description The APL3518/9 series of power switches are designed for USB applications. The 62mΩ N-channel MOSFET power switch satisfies the voltage drop requirements of USB specification. The protection features include current-limit protection, short-circuit protection, and over-temperature protection. The device limits the output current at current limit threshold level. When VOUT drops below 1.5V, the devices limit the current to a lower and safe level. The over-temperature protection limits the junction temperature below 140oC in case of short circuit or over load conditions. Other features include a deglitched OCB output to indicate the fault condition and an enable input to enable or disable the device. Simplified Application Circuit 5V VIN VOUT USB Port Applications Notebook and Desktop Computers USB Ports High-Side Power Protection Switches APL3518A/B/C/D APL3519A/B/C/D USB Controller OCB EN/ENB GND ANPEC reserves the right to make changes to improve reliabil...