TC649BEOATR Equivalent & Substitute Parts

Part Overview

The TC649BEOATR is an active Microchip Technology motor driver IC designed for brushless DC (BLDC) fan control applications. This FanSense™ series component operates across a 3V to 5.5V supply range and functions as a speed controller with pre-driver low-side output configuration. The device is packaged in 8-SOIC surface mount form factor and is ROHS3 compliant with unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and operational parameters within the Microchip FanSense™ product line.

Substiute Parts

TC649BEOATR

Microchip TechnologyIn Stock: 798TC649BEOATR Datasheet

Current PartRFQ

TC649BEOA

Microchip TechnologyIn Stock: 3461TC649BEOA Datasheet

DirectRFQ

TC642EOA713

Microchip TechnologyIn Stock: 2382TC642EOA713 Datasheet

Parametric EquivalentRFQ

TC646BEOA713

Microchip TechnologyIn Stock: 2608TC646BEOA713 Datasheet

Parametric EquivalentRFQ

TC647BEOATR

Microchip TechnologyIn Stock: 2841TC647BEOATR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC649BEOATR is determined by the following critical parameters:

• Voltage Supply Range: All substitutes must operate within 3V ~ 5.5V
• Motor Type: All substitutes must support Brushless DC (BLDC) control
• Function: All substitutes must provide speed controller functionality
• Output Configuration: All substitutes must feature pre-driver low-side output
• Interface: All substitutes must use parallel interface
• Package / Case: All substitutes must use 8-SOIC (0.154", 3.90mm Width) form factor
• Mounting Type: All substitutes must be surface mount compatible
• RoHS Status: All substitutes must maintain ROHS3 compliance
• Product Status: All substitutes must be active products

The following parts meet these criteria and are classified as direct or parametric equivalents based on packaging configuration and moisture sensitivity level.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the TC649BEOATR. Selection between the main part and substitutes should be based on packaging requirements and supply chain availability.

TC649BEOA provides identical electrical and thermal specifications with tube packaging, offering higher inventory availability (3400 units) compared to the tape & reel variant.

TC642EOA713 and TC646BEOA713 are parametric equivalents with MSL rating 3 (168 hours), indicating moisture sensitivity requirements during storage and handling. These parts are suitable for applications where extended shelf life under controlled conditions is acceptable.

TC647BEOATR maintains tape & reel packaging with MSL rating 3 (168 hours), providing an alternative within the same packaging format as the primary part.

All substitutes are manufactured by Microchip Technology and operate within identical electrical parameters, ensuring functional compatibility in BLDC fan controller applications.

Frequently Asked Questions (FAQ)

Q: Can TC649BEOA be used as a direct replacement for TC649BEOATR?

A: Yes. Both parts share identical electrical specifications, operating temperature range, supply voltage, and 8-SOIC package dimensions. The difference is packaging format: TC649BEOA uses tube packaging while TC649BEOATR uses tape & reel. Selection depends on assembly equipment compatibility and supply chain requirements.

Q: What is the significance of MSL rating differences between parts?

A: MSL (Moisture Sensitivity Level) rating indicates moisture absorption limits during storage. TC649BEOATR and TC649BEOA have MSL 1 (unlimited), allowing indefinite storage without moisture control. TC642EOA713, TC646BEOA713, and TC647BEOATR have MSL 3 (168 hours), requiring controlled storage conditions and baking procedures before reflow soldering if moisture absorption limits are exceeded.

Q: Are all substitute parts suitable for the same BLDC fan controller applications?

A: Yes. All listed parts provide identical speed controller functionality with pre-driver low-side output configuration, parallel interface, and 3V to 5.5V supply range. Electrical performance in BLDC fan applications is equivalent across all parts.

Q: What packaging options are available?

A: Four packaging configurations are available: Tape & Reel (TR) for TC649BEOATR, TC646BEOA713, and TC647BEOATR; Tube for TC649BEOA; and Cut Tape (CT) for TC642EOA713. Packaging selection should align with production equipment specifications and component handling procedures.

Q: Do all parts meet the same compliance standards?

A: Yes. All parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8542.31.0001. Regulatory compliance is consistent across all listed parts.