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AIC1526

Dual USB High-Side Power Switch

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FEATURES

110mohm (5V Input) High-Side MOSFET Switch.
500mA Continuous Load Current per Channel.
110uA Typical On-State Supply Current.
1uA Typical Off-State Supply Current.
Current-Limit / Short Circuit Protection.
Thermal Shutdown Protection under Overcurrent Condition.
Undervoltage Lockout Ensures that Switch is off at Start Up.
Output can be Forced Higher than Input (Off-State).
Open-Drain Fault Flag.
Slow Turn ON and Fast Turn OFF.
Enable Active-High or Active-Low.

APPLICATIONS

USB Power Management.
Hot Plug-In Power Supplies.
Battery-Charger Circuit.

DESCRIPTION

The AIC1526 is a dual high-side power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. Both high-side switches are MOSFET with 110 mohm R_DS(ON), which meets USB voltage drop requirements for maximum transmission wire length.

Multi-purpose open-drain fault flag output indicates over-current limiting, thermal shutdown, or undervoltage lockout for each channel. Output current is typically limited to 1A, and the thermal shutdown functions of the power switches independently control their channel under overcurrent condition.

Guaranteed minimum output rise time limits inrush current during hot plug-in as well as minimizing EMI and prevents the voltage at upstream port from dropping excessively.

TYPICAL APPLICATION