AP1346SL-13 Equivalent & Substitute Parts

Part Overview

The AP1346SL-13 is a motor driver IC manufactured by Diodes Incorporated, designed for brushless DC (BLDC) motor control applications with supply voltage range of 4V to 28V. This device functions as a commutation and direction management controller with pre-driver low-side output configuration, commonly used in fan control applications. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

AP1346SL-13

Diodes IncorporatedIn Stock: 779AP1346SL-13 Datasheet

Current PartRFQ

TMP821DR

Texas InstrumentsIn Stock: 16582TMP821DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP1346SL-13 is determined by the following critical parameters:

• Package Compatibility: Both main and substitute parts must use 8-SOIC (0.154", 3.90mm Width) surface mount packaging to ensure PCB layout compatibility without redesign.
• Voltage Supply Range: The substitute must support the 4V ~ 28V supply voltage specification.
• Motor Control Function: The substitute must provide commutation and direction management control for motor driver applications.
• Output Configuration: Pre-driver low-side output configuration with 2 channels.
• Compliance Standards: RoHS3 compliance and REACH unaffected status ensure regulatory alignment.

The TMP821DR from Texas Instruments meets these core substitution criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The TMP821DR is the manufacturer-recommended substitute for the obsolete AP1346SL-13. Selection of this alternative is justified by the following factors:

• Active Product Status: The TMP821DR maintains active production status with Texas Instruments, ensuring long-term availability and supply chain stability compared to the obsolete AP1346SL-13.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements.
• Package Equivalence: Identical 8-SOIC packaging eliminates PCB redesign requirements.
• Voltage Specification Match: Both devices operate within the 4V ~ 28V supply voltage range.
• Functional Equivalence: Both provide commutation and direction management control with pre-driver low-side output configuration suitable for motor control applications.
• Enhanced Temperature Range: The TMP821DR offers an extended operating temperature range (-40°C ~ 100°C) compared to the AP1346SL-13 (-30°C ~ 85°C), providing greater thermal margin in demanding environments.
• Improved Moisture Handling: MSL rating of 1 (Unlimited) versus MSL 3 (168 Hours) reduces moisture sensitivity concerns during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the TMP821DR directly replace the AP1346SL-13 without PCB modifications?

A: Yes. Both devices use identical 8-SOIC (0.154", 3.90mm Width) surface mount packaging, enabling direct pin-compatible substitution without PCB layout changes.

Q: What is the primary difference between the AP1346SL-13 and TMP821DR?

A: The AP1346SL-13 is optimized for brushless DC (BLDC) motor control, while the TMP821DR is designed for brushed DC motor applications. Both provide commutation and direction management functions with compatible electrical specifications and packaging.

Q: Are there compliance or certification differences between these parts?

A: Both parts maintain ROHS3 compliance and REACH unaffected status. The TMP821DR offers superior moisture sensitivity characteristics (MSL 1 versus MSL 3) and an extended operating temperature range (-40°C ~ 100°C versus -30°C ~ 85°C).

Q: Why is the AP1346SL-13 marked as obsolete?

A: Obsolete status indicates the part is no longer in active production by Diodes Incorporated. The TMP821DR from Texas Instruments provides equivalent functionality with active product support.

Q: Is the 70mA output current specification of the AP1346SL-13 a limiting factor for substitution?

A: The TMP821DR output current specification is not provided in available documentation. Design validation should confirm output current capability meets application requirements before final substitution.

Q: What inventory considerations apply to this substitution?

A: The TMP821DR has significantly higher inventory availability (16,548 Pcs) compared to the AP1346SL-13 (768 Pcs), supporting improved procurement timelines and supply chain reliability.