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MIC2549A-1BN
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CHANNEL 1:1 8DIP
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Switch Type：USB Switch
- Number of Outputs：1
- Ratio - Input:Output：1:01
- 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)：3A
- Rds On (Typ)：35mOhm
- Input Type：Non-Inverting
- Features：Slew Rate Controlled, Status Flag
- Fault Protection：Current Limiting (Adjustable), Over Temperature, Reverse Current
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Supplier Device Package：8-PDIP
- Package / Case：8-DIP (0.300", 7.62mm)
- Grade：-
- Qualification：-
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Overview
The MIC2549A-1BN is a high-side power switch IC from Microchip Technology, designed for low-loss DC power switching and distribution. It features a single output with an input voltage range of 2.7 V to 5.5 V. The device supports a maximum output current of 500 mA and includes programmable current limiting between 500 mA and 3 A. Key electrical parameters include a maximum on-resistance of 50 mΩ, a maximum turn-on time of 5 ms, and a maximum blanking time of 25 μs. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Integrated high-side power switch optimized for low-loss DC power switching applications
- Programmable current limit functionality for precise load protection
- Over-temperature latch mechanism for enhanced thermal safety
Applications
- DC power distribution systems
- Power management circuits
- Load switching in embedded systems
Procurement Notes
Verify the specific suffix '1BN' against the manufacturer's official documentation to confirm package type and availability status. Note that some sources indicate this part number may be obsolete; ensure compatibility with current design requirements before procurement. Cross-reference the datasheet for exact pinout and electrical characteristics.
Selection Notes
Select this component for applications requiring a single-channel high-side switch with integrated current limiting. Ensure the load current does not exceed the 500 mA rating or requires adjustment within the programmable range. Verify that the operating voltage falls within the 2.7 V to 5.5 V window and that the thermal environment stays within the specified -40°C to +85°C range.
Part Context
The MIC2549A series comprises integrated high-side power switches designed for efficient power distribution. This specific model, MIC2549A-1BN, represents a variant in the family, typically packaged in an 8-DIP configuration. It shares core functionalities with other members like the MIC2545A but differs in specific packaging and potential parameter variations defined by the manufacturer.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official obsolescence notices or cross-reference guides for valid alternatives if this component is discontinued.
