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ST2054BD
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Product Detailed Parameters
- Description：IC PWR SWTCH N-CHAN 2 X 1:2 16SO
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Switch Type：General Purpose
- Number of Outputs：4
- Ratio - Input:Output：2 x 1:2
- 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)：80mOhm
- Input Type：Non-Inverting
- Features：-
- Fault Protection：Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Supplier Device Package：16-SO
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Grade：-
- Qualification：-
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Overview
The ST2054BD is a power switch IC manufactured by STMicroelectronics, featuring four N-channel outputs in a 16-SOIC package. It supports a load voltage range of 2.7V to 5.5V and delivers a maximum output current of 500mA per channel with a typical on-resistance of 80 milliohms. The device utilizes an open/switch interface and includes fixed current limiting, overtemperature protection, and under-voltage lockout (UVLO). Operating within a temperature range of -40°C to 125°C TJ, it is designed for high-side switching applications.
Feature Summary
- Integrates four independent high-side N-channel power switches for efficient load distribution.
- Provides comprehensive fault protection including fixed current limiting, thermal shutdown, and under-voltage lockout.
- Features low on-resistance for minimal power loss and heat generation during operation.
Applications
- High-side switching in automotive electronic control units
- Load distribution in industrial equipment power systems
- Peripheral power management in consumer electronics
Procurement Notes
Verify component authenticity through authorized channels as the part status is listed as obsolete. Confirm package integrity and pin alignment against the 16-SOIC specification. Ensure design compatibility with the specified 2.7V to 5.5V load voltage range. Check for alternative sources if long-term supply continuity is required due to end-of-life status.
Selection Notes
Select this component for designs requiring multiple high-side switches with integrated protection features. Ensure the application load does not exceed the 500mA per channel limit. Verify that the operating environment stays within the -40°C to 125°C junction temperature range. Consider the 16-SOIC package constraints for PCB layout and thermal management requirements.
Part Context
The ST2054 belongs to a family of power switch ICs from STMicroelectronics designed for general-purpose load switching. It serves as a solution for managing multiple loads in systems where space and component count are critical. The BD suffix indicates specific packaging and tape/reel configuration details within the product line.
Replacement Considerations
As the ST2054BD is marked as obsolete, verify functional equivalents with matching pinouts and protection features. Consult official substitution guides for compatible parts with similar current ratings and voltage specifications.
FAQ
What type of fault protection does the ST2054BD include?
It includes fixed current limiting, overtemperature protection, and under-voltage lockout (UVLO).
Is the ST2054BD suitable for high-side switching?
Yes, it is configured as a high-side switch with N-channel outputs.
