PD70210ALILQ-TR Equivalent & Substitute Parts

Part Overview

The PD70210ALILQ-TR is a Power Over Ethernet (PoE) Controller manufactured by Microchip Technology, designed to manage single-channel Power Delivery (PD) applications compliant with 802.3at (PoE+) and 802.3af (PoE) standards. This component integrates an internal switch and auxiliary sense functionality within a 38-QFN (5x7) surface mount package.

The PD70210ALILQ-TR carries a Last Time Buy product status, indicating that this specific variant is no longer in active production. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications requiring PoE controller functionality.

Substiute Parts

PD70210ALILQ-TR

Microchip TechnologyIn Stock: 4352PD70210ALILQ-TR Datasheet

Current PartRFQ

PD70210AILD-TR

Microchip TechnologyIn Stock: 5860PD70210AILD-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PD70210ALILQ-TR is determined by strict alignment of the following critical parameters:

Functional Equivalence Criteria:

• Identical base product number (PD70210) from the same manufacturer (Microchip Technology)
• Single-channel Power Delivery controller architecture
• Internal switch integration
• Auxiliary sense capability
• Dual-standard compliance: 802.3at (PoE+) and 802.3af (PoE)

Electrical Compatibility Criteria:

• Maximum supply voltage: 57V
• Supply current specification: 1mA
• Operating temperature range: -40°C ~ 85°C

Regulatory & Environmental Criteria:

• ROHS3 compliance
• REACH unaffected status
• Moisture Sensitivity Level 3 (168 Hours)

Package Variation Allowance: The substitute part may differ in package configuration (QFN versus DFN) provided all functional and electrical parameters remain equivalent. Package differences do not affect controller functionality but may impact board layout and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: PD70210AILD-TR

The PD70210AILD-TR is the direct functional equivalent to the PD70210ALILQ-TR. Both components share identical electrical specifications, regulatory compliance, and PoE standards support. The substitute part is currently in Active product status, ensuring ongoing availability and supply chain continuity.

Key Advantages of Substitution:

1. Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements without modification.

2. Functional Parity: Identical channel count, internal switch architecture, auxiliary sense capability, and dual-standard (802.3at/802.3af) compliance ensure equivalent performance in PoE controller applications.

3. Supply Continuity: The substitute part is in Active production status, whereas the main part is Last Time Buy. This transition ensures long-term component availability and reduces supply chain risk.

4. Electrical Specifications: Matching voltage supply range (57V maximum), current draw (1mA), and operating temperature range (-40°C ~ 85°C) confirm electrical interchangeability.

Design Consideration:

The package configuration differs between the main part (38-QFN, 5x7mm) and the substitute (16-DFN, 5x4mm). This package change requires PCB layout modification. The substitute part occupies a smaller footprint, which may provide board space advantages. Thermal performance characteristics may differ due to package geometry; thermal analysis should be performed if thermal management is critical to the application.

Frequently Asked Questions (FAQ)

Q: Can the PD70210AILD-TR directly replace the PD70210ALILQ-TR without design changes?

A: The PD70210AILD-TR is functionally and electrically equivalent to the PD70210ALILQ-TR. However, the package configuration differs (38-QFN versus 16-DFN), requiring PCB layout modification. Pin-to-pin compatibility must be verified against the respective datasheets before implementation.

Q: What is the primary reason for substitution?

A: The PD70210ALILQ-TR carries Last Time Buy status, indicating discontinued production. The PD70210AILD-TR is in Active production status, providing assured long-term availability and supply chain reliability.

Q: Are both parts compliant with the same PoE standards?

A: Yes. Both the PD70210ALILQ-TR and PD70210AILD-TR are compliant with 802.3at (PoE+) and 802.3af (PoE) standards, ensuring equivalent protocol support.

Q: Do the parts have identical electrical specifications?

A: Yes. Both parts operate within the same voltage range (57V maximum), draw identical supply current (1mA), and function across the same operating temperature range (-40°C ~ 85°C).

Q: What are the regulatory compliance differences, if any?

A: There are no compliance differences. Both parts are ROHS3 compliant, REACH unaffected, and carry identical Moisture Sensitivity Level 3 (168 Hours) ratings.

Q: How does the package size difference affect application design?

A: The substitute part uses a smaller 16-DFN (5x4mm) package compared to the main part's 38-QFN (5x7mm) package. This reduces board footprint but requires PCB layout redesign. Thermal characteristics may differ; thermal performance validation is recommended for applications with stringent thermal requirements.

Q: Are there any functional differences between the two parts?

A: No functional differences exist. Both parts provide single-channel PoE controller functionality with internal switch and auxiliary sense capabilities. The substitute part includes DC/DC controller functionality in its type designation, but this does not alter core PoE controller operation.

Q: What is the inventory status of the substitute part?

A: The PD70210AILD-TR has 5,755 pieces in stock as new original inventory, compared to 4,300 pieces for the main part. The substitute part's Active status and higher inventory level support immediate availability.