MIC59P50BWM-TR Equivalent & Substitute Parts

Part Overview

The MIC59P50BWM-TR is a Power Switch/Driver IC from Microchip Technology, classified as a latched driver with 1:1 bipolar output configuration. This 24-SOIC surface mount component delivers 500mA maximum output current and operates across -40°C to 85°C. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

MIC59P50BWM-TR

Microchip TechnologyIn Stock: 1130MIC59P50BWM-TR Datasheet

Current PartRFQ

MIC59P50YWM-TR

Microchip TechnologyIn Stock: 2601MIC59P50YWM-TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC59P50BWM-TR is determined by strict equivalence across the following critical parameters:

• Switch type (Latched Driver)
• Number of outputs (8)
• Input:Output ratio (1:1)
• Output configuration (Low Side)
• Output type (Bipolar)
• Interface type (Strobe, Parallel)
• Maximum output current (500mA)
• Package type (24-SOIC)
• Operating temperature range (-40°C ~ 85°C)

The MIC59P50YWM-TR meets all these criteria and is classified as a direct substitute. Both parts share the same base product number (MIC59P50) and identical functional architecture, differing only in load voltage specification and compliance status.

Parameter Comparison

Engineering Selection Recommendations

The MIC59P50YWM-TR is the direct substitute for the discontinued MIC59P50BWM-TR. Selection of the substitute is supported by:

• Identical functional architecture and pin configuration
• Active product status with established supply chain availability
• ROHS3 compliance, meeting current regulatory requirements
• Enhanced fault protection through fixed current limiting
• Load voltage specification (5V ~ 12V) suitable for standard logic and low-voltage power applications

The load voltage difference (15V maximum on main part versus 5V ~ 12V on substitute) must be evaluated against specific application requirements. Applications operating loads above 12V require retention of the original MIC59P50BWM-TR or identification of alternative architectures.

Frequently Asked Questions (FAQ)

Q: Are MIC59P50BWM-TR and MIC59P50YWM-TR pin-compatible?

A: Yes. Both parts use the 24-SOIC package with identical pinout and functional interface (Strobe, Parallel). Direct PCB substitution is possible without layout modification.

Q: What is the primary difference between these parts?

A: The MIC59P50YWM-TR specifies a lower maximum load voltage (5V ~ 12V) compared to the MIC59P50BWM-TR (15V maximum). The substitute also includes fixed current limiting protection and maintains ROHS3 compliance.

Q: Can the MIC59P50YWM-TR replace the MIC59P50BWM-TR in all applications?

A: Substitution is valid for applications where load voltage does not exceed 12V. Applications requiring 15V load operation require alternative component selection.

Q: What is the impact of the MSL rating difference?

A: The main part (MSL 1) has unlimited shelf life under standard storage conditions. The substitute (MSL 2) requires controlled storage at specified humidity and temperature for one year. Standard component handling practices accommodate this difference.

Q: Is the additional current limiting feature on the substitute a functional change?

A: Fixed current limiting on the MIC59P50YWM-TR provides enhanced fault protection. This feature does not alter normal operation but improves robustness under overcurrent conditions.