TC649EOATR Equivalent & Substitute Parts

Part Overview

The TC649EOATR is an active Brushless DC (BLDC) motor driver controller manufactured by Microchip Technology, part of the FanSense™ series. This integrated circuit functions as a speed controller with pre-driver low-side output configuration, designed for fan control applications. The device operates across a 3V to 5.5V supply voltage range and is housed in an 8-SOIC surface mount package. Substitute parts are necessary when the primary part number becomes unavailable, when specific packaging requirements differ, or when inventory constraints require alternative sourcing from the same manufacturer's compatible product line.

Substiute Parts

TC649EOATR

Microchip TechnologyIn Stock: 3297TC649EOATR Datasheet

Current PartRFQ

TC649EOA

Microchip TechnologyIn Stock: 3455TC649EOA 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 TC649EOATR is determined by strict parameter matching across the following criteria:

Critical Parameters for Substitution:

• Motor type: Brushless DC (BLDC)
• Function: Speed controller
• Output configuration: Pre-Driver - Low Side
• Interface: Parallel
• Supply voltage range: 3V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Package type: 8-SOIC surface mount
• Manufacturer: Microchip Technology
• Product status: Active

All substitute parts listed maintain identical electrical specifications and mechanical compatibility. Differences exist only in packaging format (Tape & Reel, Tube, or Cut Tape) and moisture sensitivity level (MSL), which do not affect functional equivalence or circuit performance.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain full functional and electrical equivalence to the TC649EOATR. Selection among these alternatives is determined by packaging and handling requirements rather than performance characteristics.

TC649EOA provides direct functional equivalence with identical MSL rating (1 - Unlimited) but differs in packaging format (Tube instead of Tape & Reel). This part is suitable for applications where tube packaging is acceptable and inventory availability is prioritized.

TC642EOA713, TC646BEOA713, and TC647BEOATR are parametric equivalents with MSL rating of 3 (168 Hours), indicating moisture sensitivity requiring controlled storage conditions. These parts are functionally identical but require adherence to moisture handling protocols during storage and assembly. Selection among these three depends on packaging preference: TC642EOA713 is supplied in Cut Tape format, while TC646BEOA713 and TC647BEOATR are supplied in Tape & Reel format.

All substitute parts maintain ROHS3 compliance, active product status, and identical electrical specifications. Selection should be based on packaging compatibility with assembly equipment and moisture control capabilities of the manufacturing environment.

Frequently Asked Questions (FAQ)

Q: Can TC649EOA be used as a direct replacement for TC649EOATR?

A: Yes. Both parts are functionally identical with matching electrical specifications, supply voltage range (3V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and 8-SOIC package dimensions. The only difference is packaging format: TC649EOATR is supplied in Tape & Reel while TC649EOA is supplied in Tube. Both have MSL rating of 1 (Unlimited).

Q: What is the difference between MSL 1 and MSL 3 rated parts?

A: MSL (Moisture Sensitivity Level) indicates the maximum time a component can be exposed to ambient conditions before soldering. MSL 1 (Unlimited) allows indefinite storage without moisture control. MSL 3 (168 Hours) requires that the component be soldered within 168 hours of exposure to ambient conditions above 30°C and 85% relative humidity. Parts with MSL 3 require desiccant packaging and controlled storage.

Q: Are TC642EOA713, TC646BEOA713, and TC647BEOATR interchangeable with TC649EOATR?

A: Yes, these parts are parametric equivalents with identical electrical performance and 8-SOIC package specifications. All maintain 3V ~ 5.5V supply voltage range, -40°C ~ 85°C operating temperature, and Brushless DC motor control functionality. The primary difference is MSL rating (3 instead of 1), requiring moisture control during storage and handling.

Q: Which packaging format should I select?

A: Packaging selection depends on assembly equipment compatibility. Tape & Reel (TR) format is standard for automated pick-and-place assembly. Tube packaging is suitable for manual assembly or lower-volume applications. Cut Tape (CT) format provides intermediate quantities for semi-automated processes. All formats contain electrically identical components.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed parts, including TC649EOATR, TC649EOA, TC642EOA713, TC646BEOA713, and TC647BEOATR, are ROHS3 compliant and maintain active product status with Microchip Technology.