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Product Detailed Parameters
- Description：IC PWR SWITCH 1:1 20QFN
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Switch Type：USB Switch
- Number of Outputs：2
- Ratio - Input:Output：1:01
- Output Configuration：High Side
- Output Type：-
- Interface：I2C, SMBus
- Voltage - Load：4.5V ~ 5.5V
- Voltage - Supply (Vcc/Vdd)：-
- Current - Output (Max)：3A
- Rds On (Typ)：40mOhm
- Input Type：-
- Features：-
- Fault Protection：Current Limiting (Fixed), Over Temperature, Over Voltage, UVLO
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-QFN (4x4)
- Package / Case：20-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The UCS2113-1-V/G4 is a dual USB port power switch IC from Microchip Technology, designed for USB 2.0 applications. It provides 3A continuous current per VBUS port with precision overcurrent protection and current monitoring capabilities. The device operates within a load voltage range of 4.5V to 5.5V and supports I2C/SMBus interface control. Key electrical parameters include a maximum on-resistance of 40 mOhms, a maximum operating time of 0.9 ms, and a maximum idle time of 0.75 ms. It functions at supply voltages between 2.9V and 5.5V, with a typical quiescent current of 700 uA. The component is housed in a QFN-20 package and is rated for operation temperatures from -40°C to +105°C.
Feature Summary
- Dual USB port configuration with integrated current sensing and monitoring
- Precision overcurrent protection with increased current limit threshold
- I2C and SMBus interface for digital control and status reporting
- Low on-resistance design for efficient power delivery
Applications
- USB 2.0 hub designs requiring dual-port power switching
- Portable electronic devices needing precise current management
- Industrial equipment with USB connectivity requirements
Procurement Notes
Verify the specific suffix (e.g., -1 vs -2) against your schematic, as variants differ in current sensing features. Confirm the package type (QFN-20) and tube packaging details match your assembly process. Ensure compatibility with your system's I2C/SMBus voltage levels and check for any recent product change notifications that might affect pinout or specifications.
Selection Notes
Select this component when dual-port USB power switching with active current monitoring is required. Compare against the UCS2113-2 series if current sensing is not needed, as it offers a simpler configuration. Consider thermal performance given the 2.193 W power dissipation rating in the QFN-20 package. Verify that the 4.5V to 5.5V load voltage range aligns with your USB bus specifications.
Part Context
This part belongs to the UCS2113 family of USB switch ICs from Microchip Technology. The family includes variants like the UCS2113-2C-V/G4, which lacks current sensing, and automotive-grade versions such as the UCS2113-1C-V/G4VAO. These components are designed to manage power distribution in USB systems while providing diagnostic feedback through digital interfaces.
Replacement Considerations
Direct substitutes include other UCS2113 variants depending on feature needs. The UCS2113-2C-V/G4 serves as a non-sensing alternative. For automotive applications, consider the UCS2113-1C-V/G4VAO. Always verify pin compatibility and electrical specifications before substitution.
