Power switches enhance usb port protection
Designed to ensure fast and accurate latching off of output current in the event of over current detection, the AP2401 and AP2411 single channel power switches from Diodes are optimised to help raise usb port protection levels.
The 2A rated, high side devices provide a choice of active low enable and active high enable operation and are targeted at self powered and bus powered usb 2.0 and 3.0, as well as other 3 to 5V hot swap consumer electronics applications.
They have a short circuit response time of 2µs to increase overall system robustness and avoid unnecessary system shutdown or restart. An integrated output discharge function provides controlled discharge of output capacitor voltage when disabled.
To minimise voltage drop losses in higher current systems, the AP24xx devices exhibit an on resistance of 70Mohm under 2A continuous operation. They are designed to provide a complete protection solution for any equipment subject to short circuits and heavy capacitive loads.
