PI5USB1458AZAEX Equivalent & Substitute Parts

Part Overview

The PI5USB1458AZAEX is a Battery Multi-Function Controller IC for single-cell Lithium Ion applications, manufactured by Diodes Incorporated. This device integrates USB interface functionality within an 8-TDFN (2x2) surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

PI5USB1458AZAEX

Diodes IncorporatedIn Stock: 7486PI5USB1458AZAEX Datasheet

Current PartRFQ

LTC4066EPF#PBF

Analog Devices Inc.In Stock: 12979LTC4066EPF#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI5USB1458AZAEX is determined by the following core parameters:

• Functional Equivalence: Multi-Function Controller for single-cell Lithium Ion battery management
• Interface Compatibility: USB interface requirement
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Regulatory Compliance: ROHS3 Compliant and REACH Unaffected status
• Mounting Technology: Surface mount configuration

The LTC4066EPF#PBF from Analog Devices Inc. satisfies all substitution criteria. While the package format differs (24-UTQFN versus 8-TDFN), both devices provide equivalent functional performance for single-cell Lithium Ion battery management with USB interface capability. The substitute part maintains identical operating temperature specifications and regulatory compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

The LTC4066EPF#PBF is the designated substitute for the obsolete PI5USB1458AZAEX. Selection of this alternative is supported by:

• Functional Parity: Both devices serve as multi-function controllers for single-cell Lithium Ion battery systems with USB interface integration
• Regulatory Alignment: The substitute maintains ROHS3 Compliance and REACH Unaffected status, ensuring compatibility with current environmental and safety standards
• Active Product Status: The LTC4066EPF#PBF is currently in active production, providing long-term availability and supply chain stability
• Temperature Specification Match: Identical operating temperature range (-40°C ~ 85°C) ensures thermal performance equivalence
• Enhanced Protection: The substitute includes Over Current fault protection, providing additional circuit safeguarding

Frequently Asked Questions (FAQ)

Q: Why is the PI5USB1458AZAEX classified as obsolete?

A: The PI5USB1458AZAEX has reached end-of-life status with Diodes Incorporated. Existing inventory remains available, but new production has ceased. The LTC4066EPF#PBF provides functional continuity for new designs and production requirements.

Q: Are the package formats interchangeable?

A: No. The PI5USB1458AZAEX uses an 8-TDFN (2x2) package, while the LTC4066EPF#PBF uses a 24-UTQFN (4x4) package. PCB layout and footprint redesign is required for substitution. The larger package of the substitute provides additional pin count and integrated functionality.

Q: Do both parts operate within the same temperature range?

A: Yes. Both the PI5USB1458AZAEX and LTC4066EPF#PBF operate across -40°C to 85°C (TA), ensuring thermal performance equivalence in target applications.

Q: What regulatory certifications apply to the substitute part?

A: The LTC4066EPF#PBF is ROHS3 Compliant and REACH Unaffected, matching the regulatory status of the original part and meeting current environmental compliance requirements.

Q: Does the substitute offer additional features?

A: Yes. The LTC4066EPF#PBF includes Over Current fault protection, which is not specified for the PI5USB1458AZAEX. This enhancement provides additional circuit protection in the substitute design.

Q: What is the Moisture Sensitivity Level (MSL) of the substitute?

A: The LTC4066EPF#PBF has an MSL rating of 1 (Unlimited), indicating minimal moisture sensitivity and simplified handling requirements during storage and assembly.