USB Dual-Port Power Switch and Current Monitor
UCS2112
USB Dual-Port Power Switch and Current Monitor
Features
• Dual-Port Power Switches:
- 2.9V to 5.5V source volta...
Description
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...
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