TMC2225-SA Equivalent & Substitute Parts

Part Overview

The TMC2225-SA is an active, fully integrated bipolar stepper motor driver IC manufactured by Analog Devices Inc. This Power Management IC integrates control and power stage functionality in a 28-QFN (5x5) surface mount package. The device operates across a supply voltage range of 5.5V to 36V and delivers 1.4A output current, supporting step resolutions from 1 to 1/256 microstepping. The TMC2225-SA features SPI, Step/Direction, and UART interfaces with StealthChop™ technology for noise reduction in stepper motor applications.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter set, allowing for design flexibility, inventory optimization, or supply chain continuity.

Substiute Parts

TMC2225-SA

Analog Devices Inc.In Stock: 1039TMC2225-SA Datasheet

Current PartRFQ

TMC2224-LA-T

Analog Devices Inc.In Stock: 5174TMC2224-LA-T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMC2225-SA is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Manufacturer: Analog Devices Inc.
• Motor Type - Stepper: Bipolar
• Function: Driver - Fully Integrated, Control and Power Stage
• Technology: Power MOSFET
• Step Resolution: 1 ~ 1/256
• Voltage - Supply: 5.5V ~ 36V
• Voltage - Load: 5.5V ~ 36V
• Operating Temperature: -40°C ~ 125°C (TJ)
• Package / Case: 28-VFQFN Exposed Pad
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 3 (168 Hours)
• REACH Status: REACH Unaffected
• Product Status: Active

Allowable Variation Parameters:

• Interface configuration (SPI, Step/Direction, UART vs. Logic, UART)
• Output Configuration (Half Bridge 2 vs. Half Bridge 4)
• Current - Output (1.4A vs. 1.2A)
• Packaging format (Tube vs. Tape & Reel)

The TMC2224-LA-T meets all mandatory equivalence criteria while operating within acceptable current output tolerance and offering alternative interface and output configuration options.

Parameter Comparison

Engineering Selection Recommendations

Both the TMC2225-SA and TMC2224-LA-T are active products manufactured by Analog Devices Inc. and maintain full compliance with ROHS3, REACH, and MSL 3 (168 Hours) requirements. Both devices are suitable for production applications requiring long-term supply stability.

The TMC2225-SA provides SPI and Step/Direction interface options with a Half Bridge (2) output configuration and 1.4A output current capability. The TMC2224-LA-T offers Logic and UART interface options with a Half Bridge (4) output configuration and 1.2A output current capability. Selection between these parts depends on specific interface requirements and output current demands of the target application.

Both parts share identical thermal operating range (-40°C to 125°C junction temperature), identical supply and load voltage specifications (5.5V to 36V), and identical step resolution capability (1 to 1/256 microstepping). The 28-VFQFN Exposed Pad package and surface mount mounting type are identical across both parts, ensuring mechanical and thermal compatibility on PCB layouts designed for either device.

Frequently Asked Questions (FAQ)

Q: Can the TMC2224-LA-T directly replace the TMC2225-SA in an existing design?

A: Direct replacement requires verification of interface compatibility. The TMC2225-SA supports SPI, Step/Direction, and UART interfaces, while the TMC2224-LA-T supports Logic and UART interfaces. If the design uses SPI or Step/Direction control, the TMC2224-LA-T cannot be used without circuit modification. If the design uses only UART control, substitution is feasible with output current verification.

Q: What is the significance of the output current difference between these parts?

A: The TMC2225-SA delivers 1.4A output current, while the TMC2224-LA-T delivers 1.2A output current. Applications requiring motor drive currents exceeding 1.2A must use the TMC2225-SA. Applications with motor current requirements at or below 1.2A can use either part.

Q: Are the package dimensions identical between these parts?

A: Both parts use the 28-VFQFN Exposed Pad package with identical physical dimensions (5x5 mm). PCB footprints and thermal pad designs are compatible between the two parts.

Q: What is the difference between Half Bridge (2) and Half Bridge (4) output configurations?

A: The TMC2225-SA Half Bridge (2) configuration provides two independent half-bridge outputs for bipolar stepper motor control. The TMC2224-LA-T Half Bridge (4) configuration provides four independent half-bridge outputs. Application requirements determine which configuration is appropriate.

Q: Are both parts suitable for industrial temperature range applications?

A: Both parts operate across the identical temperature range of -40°C to 125°C junction temperature, meeting industrial temperature specifications.

Q: What is the difference in packaging format between Tube and Tape & Reel?

A: The TMC2225-SA is supplied in Tube packaging format, suitable for manual handling and small-quantity applications. The TMC2224-LA-T is supplied in Tape & Reel (TR) format, suitable for automated pick-and-place assembly processes. Packaging format does not affect electrical or mechanical compatibility.

Q: Do both parts meet the same regulatory compliance standards?

A: Both parts are ROHS3 Compliant, REACH Unaffected, and maintain MSL 3 (168 Hours) moisture sensitivity rating. Regulatory compliance is identical across both parts.