UCS2112

UCS2112 USB Dual-Port Power Switch and Current Monitor Features Dual-Port Power Switches: - 2.9V to 5.5V source voltage range - 3.0A continuous current per VBUS port with 40 m On resistance per switch - Independent port power switch enable pins - DUAL fault ALERT# active drain output pins - Constant Current or Trip mode current limiting behaviors - Undervoltage and overvoltage lockout - Back-drive, back-voltage protection - Auto-recovery fault handling with low test current - BOOST# logic output to increase DC-DC converter output under large load conditions - A_DET# open-drain outputs for device attach detection per port SMBus 2.0/I2C™ Mode Features: - Eight programmable current limits assignable to each power switch - Other SMBus addresses available upon request - Block read and block write Self-contained current monitoring (no external sense resistor required) Fully programmable per-port charge rationing and behaviors Per-port BC1.2 VBUS Discharge Function Wide Operating Temperature Range: - -40°C to +105°C UL recognized and EN/IEC 60950-1 (CB) certified. Description The UCS2112 is a dual USB port power switch configuration which can provide 3.0A continuous current (3.4A maximum) per VBUS port with precision overcurrent limiting (OCL), port power switch enables, auto-recovery fault handling, undervoltage and overvoltage lockout, back-drive protection and back-voltage protection, and dynamic thermal management. The UCS2112 is well suited for both stand-alone...