UCS2113中文资料Dual USB Power Switch with Integrated Current Sensor数据手册Microchip规格书

描述 Description

The UCS2113 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 thermal protection.The UCS2113 is well suited for both stand-alone and applications having SMBus/I2C communications. For applications with SMBus, the UCS2113 provides per-port current monitoring and eight programmable current limits per switch, ranging from 0.53A to 3.0A continuous current (3.4A maximum). Per-port charge rationing is also provided ranging from 3.8 mAh to 246.3 Ah. In stand-alone mode, the UCS2113 provides eight current limits for both switches, ranging from 0.53A + 0.53A to 3A + 3A total continuous current.Both power switches include an independent VBUS discharge function and constant current mode current limiting for BC1.2 applications.The UCS2113 is available in a 4x4 mm 20-pin QFN package.Also consider the UCS2113-C with an increased current limit threshold to support third party compliance testing/proprietary USB accessory standards.

特性 Features

2.9V to 5.5V source voltage range
3.0A continuous current per VBUS port with 40 mΩ 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
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
Configurable Per-Port BC1.2 VBUS Discharge Function
-40°C to +105°C Operating Temperature Range
4x4 mm 20-pin QFN
UL recognized and EN/IEC 60950-1 (CB) Certified