ACE Technology ACE345
The ACE345 is Adjustable USB Load Current Switch Current Limited designed for high-side load switching applications. The internal current-limiting circuit protects the input supply against large output short circuit current which may cause the supply to fall out of regulation. The current limit threshold is programmed with an external resistor from ISET Pin to ground.DESCRIPTION
The quiescent supply current is typically 150μA, making the device ideal for portable battery-operated equipment. In shutdown mode, the supply current decreases to less than 0.1μA. Additional features include thermal shutdown and constant current output characteristics if current exceed its current limitFEATURES
● 2.5 to 5.5V input voltage range● Controlled turn-on
● 0.15-1.5A adjustable current limit
● +/-6% current limit accuracy
● 0.1ohm on resistance
● Fast current limit response time
● Logic Control Shutdown (IQ<1uA)
● Thermal shutdown and UVLO
● Reverse current blocking Application
● Portable Devices
● MID, MP4…
● Set top boxes
● Notebook and PC mother board
● USB supplied Devices
ABSOLUTE MAXIMUM RATINGS
Parameter Max Unit Max Input Voltage 6V Max Operating Junction Temperature(TJ) 125 ℃ Ambient Temperature(TA) -40~85 ℃ Maximum Power Dissipation 250 mW Storage Temperature(TS) -40~150 ℃ ESD (HBM) >4000 V Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability.