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MIC2545A-1BN
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Product Detailed Parameters
- Description：PROGRAMMABLE HIGH-SIDE SWITCH
- 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)
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Overview
The MIC2545A-1BN is a programmable high-side power switch manufactured by Microchip Technology. It features an N-channel output capable of handling up to 3A continuous current with a maximum on-resistance of 50 mΩ. The device operates within a supply voltage range of 2.7V to 5.5V and includes adjustable current limiting from 500mA to 3A. Key timing specifications include a maximum turn-on time of 5ms and a maximum dwell time of 25µs. It is designed for through-hole mounting in an 8-pin PDIP package.
Feature Summary
- Programmable current limit functionality allows customization between 500mA and 3A thresholds.
- Integrated high-side switching with low on-resistance for efficient power distribution.
- Built-in protection mechanisms including thermal shutdown and over-current limiting.
Applications
- Power distribution systems requiring load protection
- USB peripheral power switching applications
- General-purpose high-side load driver circuits
Procurement Notes
Verify component authenticity through authorized Microchip Technology distributors or certified partners. Confirm the specific package variant matches design requirements, as availability may vary due to lifecycle status. Request official datasheets and test reports to ensure compliance with electrical specifications before integration into final assemblies.
Selection Notes
Select this component when a robust high-side switch with adjustable current limiting is required for loads up to 3A. Ensure the operating voltage range of 2.7V to 5.5V aligns with the system power rail. Consider the through-hole PDIP packaging if PCB layout constraints favor manual assembly or higher mechanical stability over surface-mount alternatives.
Part Context
The MIC2545A series belongs to Microchip's family of programmable power switches designed for protecting downstream loads. This specific model represents a single-channel solution optimized for applications needing precise current control and fault protection within standard logic-level voltage domains.
Replacement Considerations
The MIC2545A-1BN is listed as obsolete. Potential substitutes include the MIC2545A-1BM or MIC2545A-2YN, provided they match the required current rating and package type. Verify pin compatibility and electrical parameters before substitution.
