USB5926-I/KD Equivalent & Substitute Parts

Part Overview

The USB5926-I/KD is a USB Hub Controller manufactured by Microchip Technology, designed for USB 3.1 interface applications with I2C and SPI communication protocols. This component operates across a supply voltage range of 1.2V and 3.3V within an operating temperature range of -40°C to 85°C, housed in a 100-VQFN (12x12) package with exposed pad.

The USB5926-I/KD has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this hub controller architecture.

Substiute Parts

USB5926-I/KD

Microchip TechnologyIn Stock: 978USB5926-I/KD Datasheet

Current PartRFQ

USB5926C-I/KD

Microchip TechnologyIn Stock: 784USB5926C-I/KD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the USB5926-I/KD is determined by the following critical parameters:

Package Compatibility: The substitute part must utilize the 100-VQFN (12x12) package with exposed pad to ensure mechanical and thermal compatibility with existing PCB layouts.

Electrical Specifications: Supply voltage ranges and operating temperature specifications must be compatible with the original design requirements. The substitute must support the same or overlapping voltage and temperature operating windows.

Interface Protocol Support: The substitute must maintain I2C and SPI interface capabilities to ensure firmware and hardware communication protocols remain functional without redesign.

Standards Compliance: USB protocol support (USB 3.1 or higher) ensures forward compatibility and maintains the intended data transfer performance characteristics.

Regulatory Compliance: RoHS3 compliance and REACH unaffected status must be maintained to satisfy environmental and regulatory requirements.

The USB5926C-I/KD qualifies as a direct substitute based on these parameters. It maintains identical package specifications, overlapping voltage ranges, compatible interface protocols, and equivalent regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

The USB5926C-I/KD is the primary substitute for the obsolete USB5926-I/KD. This substitution is supported by:

Product Status Alignment: The USB5926C-I/KD maintains active product status with Microchip Technology, ensuring continued availability, technical support, and supply chain reliability.

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

Package Compatibility: Identical 100-VQFN (12x12) package specifications ensure direct PCB layout compatibility without redesign requirements.

Electrical Compatibility: The USB5926C-I/KD supply voltage range (1.08V ~ 1.32V, 3V ~ 3.6V) encompasses the original part specifications (1.2V, 3.3V), ensuring functional compatibility across the design operating window.

Enhanced Interface Capability: The USB5926C-I/KD provides additional interface protocols (SMBus, UART) beyond the original I2C and SPI support, offering expanded functionality without compromising existing design requirements.

Frequently Asked Questions (FAQ)

Q: Can the USB5926C-I/KD be used as a direct replacement for the USB5926-I/KD without PCB modifications?

A: Yes. Both parts utilize the identical 100-VQFN (12x12) package with exposed pad. Pin-to-pin compatibility and thermal characteristics are equivalent, eliminating the need for PCB layout changes.

Q: Are there voltage supply differences between the main part and substitute?

A: The USB5926C-I/KD operates across a wider voltage range (1.08V ~ 1.32V, 3V ~ 3.6V) compared to the discrete voltage levels of the original part (1.2V, 3.3V). This expanded range provides greater design flexibility while maintaining compatibility with the original specifications.

Q: What interface protocols does the USB5926C-I/KD support?

A: The USB5926C-I/KD supports I2C, SMBus, SPI, and UART interfaces. The original USB5926-I/KD supports I2C and SPI. Existing designs utilizing I2C and SPI will function without modification.

Q: Does the substitute part maintain the same USB standards support?

A: The USB5926C-I/KD supports both USB 2.0 and USB 3.1 standards, while the original part supports USB 3.1. This provides backward compatibility and enhanced flexibility for multi-standard applications.

Q: Are moisture sensitivity and handling requirements identical?

A: Yes. Both parts maintain MSL 3 (168 Hours) classification, requiring identical storage, handling, and reflow procedures.