MIC59P50BV Equivalent & Substitute Parts

Part Overview

The MIC59P50BV is a Power Switch/Driver IC from Microchip Technology, classified as a Power Management (PMIC) component. This latched driver features 1:1 bipolar output configuration with 8 outputs, rated for 500mA maximum output current and 15V maximum load voltage. The device operates across the industrial temperature range of -40°C to 85°C and includes integrated status flag and fault protection mechanisms (over temperature and UVLO).

The MIC59P50BV is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

MIC59P50BV

Microchip TechnologyIn Stock: 2436MIC59P50BV Datasheet

Current PartRFQ

MIC59P50YV

Microchip TechnologyIn Stock: 1039MIC59P50YV Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MIC59P50BV is determined by strict alignment across the following critical parameters:

• Switch Type: Latched Driver
• Number of Outputs: 8
• Ratio - Input:Output: 1:1
• Output Configuration: Low Side
• Output Type: Bipolar
• Interface: Strobe, Parallel
• Current - Output (Max): 500mA
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Package / Case: 28-LCC (J-Lead)
• Supplier Device Package: 28-PLCC (11.48x11.48)

The MIC59P50YV qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. Variations in maximum load voltage (5V ~ 12V versus 15V), fault protection features (addition of Current Limiting), product status (Active versus Obsolete), and compliance certifications (RoHS3 Compliant versus RoHS non-compliant) do not disqualify substitution when the application load voltage requirement does not exceed 12V.

Parameter Comparison

Engineering Selection Recommendations

The MIC59P50YV is the direct substitute for the obsolete MIC59P50BV when application requirements permit. Selection criteria are based on the following factors:

Product Status and Availability: The MIC59P50YV maintains Active product status with documented inventory availability (933 Pcs New Original In Stock), whereas the MIC59P50BV is obsolete. For new designs or ongoing production support, the MIC59P50YV is the appropriate selection.

Compliance and Certifications: The MIC59P50YV is ROHS3 Compliant, meeting current regulatory requirements for electronic components in regulated markets. The MIC59P50BV is RoHS non-compliant. Systems subject to RoHS directives or customer compliance mandates must transition to the MIC59P50YV.

Load Voltage Compatibility: The MIC59P50YV supports load voltages from 5V to 12V, compared to the MIC59P50BV maximum of 15V. Substitution is valid only when the application load voltage does not exceed 12V. Applications requiring 13V to 15V load voltage cannot use the MIC59P50YV as a substitute.

Fault Protection Enhancement: The MIC59P50YV includes fixed current limiting in addition to over temperature and UVLO protection, providing enhanced fault tolerance compared to the MIC59P50BV.

Moisture Sensitivity: The MIC59P50YV has MSL 2 (1 Year), requiring controlled storage conditions, whereas the MIC59P50BV has MSL 1 (Unlimited). Storage and handling procedures must reflect this difference.

Frequently Asked Questions (FAQ)

Q: Can the MIC59P50YV directly replace the MIC59P50BV in existing designs?

A: The MIC59P50YV is a direct electrical and mechanical substitute provided the application load voltage does not exceed 12V. All critical parameters—switch type, output count, output configuration, interface, current rating, temperature range, and package—are identical. Verify load voltage requirements before substitution.

Q: What is the primary reason the MIC59P50BV is obsolete?

A: The MIC59P50BV is listed as obsolete by the manufacturer. The MIC59P50YV is the active replacement part, offering improved compliance status and enhanced fault protection features.

Q: Are there packaging differences between these parts?

A: Both parts use identical packaging: 28-LCC (J-Lead) case with 28-PLCC (11.48x11.48) supplier device package. No PCB layout or footprint modifications are required for substitution.

Q: What is the difference in fault protection between these parts?

A: The MIC59P50BV provides over temperature and UVLO (Under Voltage Lock Out) protection. The MIC59P50YV adds fixed current limiting to this protection set, offering enhanced circuit protection.

Q: Does the MIC59P50YV require different handling procedures?

A: The MIC59P50YV has Moisture Sensitivity Level 2 (1 Year), requiring storage in controlled humidity conditions and use within one year of package opening. The MIC59P50BV has MSL 1 (Unlimited), allowing indefinite storage. Follow MSL 2 handling procedures for the MIC59P50YV.

Q: What load voltage range is supported by the MIC59P50YV?

A: The MIC59P50YV supports load voltages from 5V to 12V maximum. Applications requiring higher load voltages (13V to 15V) cannot use this substitute.

Q: Are both parts RoHS compliant?

A: The MIC59P50YV is ROHS3 Compliant. The MIC59P50BV is RoHS non-compliant. For applications subject to RoHS regulations, the MIC59P50YV is required.