— IC芯片 | 连接器 | 传感器 | 被动器件 —
Product Detailed Parameters
- Description:QUAD USB POWER DISTRIBUTION SWIT
- Series:-
- Mfr:Micrel Inc.
- Package:Bulk
- Switch Type:USB Switch
- Number of Outputs:4
- Ratio - Input:Output:1:02
- Output Configuration:High Side
- Output Type:N-Channel
- Interface:On/Off
- Voltage - Load:2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):Not Required
- Current - Output (Max):500mA
- Rds On (Typ):100mOhm
- Input Type:Non-Inverting
- Features:Status Flag
- Fault Protection:Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature:-40°C ~ 85°C (TA)
- Mounting Type:-
- Supplier Device Package:-
- Package / Case:-
- Grade:-
- Qualification:-
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Overview
The MIC2027-1BN is a quad high-side power switch manufactured by Micrel, designed for Universal Serial Bus (USB) applications. It features four independently controlled channels with a 3V to 5.5V input range and a 90mΩ typical on-resistance. The device supports up to 1.25A short-circuit current limit per port and includes individual open-drain fault flags. It operates within a temperature range of -40°C to +85°C and is housed in an 8-pin SOIC package.
Feature Summary
- Four independent high-side switches optimized for USB bus-powered and self-powered hubs
- Integrated thermal shutdown protection and undervoltage lockout
- Individual open-drain fault flag pins for status monitoring
- Compliant with USB specifications requiring minimal external components
Applications
- USB bus-powered hubs
- USB self-powered hubs
- USB monitors
- USB printers
Procurement Notes
Verify the specific suffix 'BN' against official Microchip or Micrel documentation to confirm pinout and enable logic configuration. Ensure the component source is authorized to avoid counterfeit parts. Check for end-of-life notices as older Micrel designs may have limited availability. Confirm RoHS compliance status if required for your assembly process.
Selection Notes
Select this component when designing multi-port USB interfaces requiring independent channel control and fault detection. The low on-resistance minimizes power loss compared to higher resistance alternatives. Consider the 8-pin SOIC package constraints for PCB layout. Verify that the 1.25A current limit meets the load requirements of connected peripherals without triggering unnecessary shutdowns.
Part Context
Micrel was acquired by Microchip Technology in 2015. This part belongs to the legacy Micrel portfolio of analog and mixed-signal ICs. The MIC2027 series is specifically engineered for cost-effective USB power management solutions. It serves as a standard solution for protecting USB ports from overcurrent conditions in consumer electronics.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided data. Consult Microchip's official cross-reference tools for potential replacements. Ensure any alternative device matches the 8-pin SOIC footprint and electrical characteristics.
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