AL5817MP-13 Equivalent & Substitute Parts

Part Overview

The AL5817MP-13 is a linear LED driver IC manufactured by Diodes Incorporated, designed for single-output lighting applications with PWM dimming capability. This device operates across a wide supply voltage range of 4.5V to 60V and delivers 15mA output current in an 8-MSOP package with exposed pad. The part is currently active in production and ROHS3 compliant, making it suitable for modern lighting control circuits requiring linear regulation and PWM-based brightness adjustment.

Substitute parts are identified when design requirements change, inventory constraints occur, or when alternative manufacturers' solutions meet the same electrical and mechanical specifications within defined tolerance parameters.

Substiute Parts

AL5817MP-13

Diodes IncorporatedIn Stock: 7617AL5817MP-13 Datasheet

Current PartRFQ

AL5814MP-13

Diodes IncorporatedIn Stock: 2746AL5814MP-13 Datasheet

Parametric EquivalentRFQ

AL5814QMP-13

Diodes IncorporatedIn Stock: 1886AL5814QMP-13 Datasheet

Parametric EquivalentRFQ

BCR321UE6327HTSA1

Infineon TechnologiesIn Stock: 27468BCR321UE6327HTSA1 Datasheet

MFR RecommendedRFQ

TSCR420CX6 RFG

Taiwan Semiconductor CorporationIn Stock: 8041TSCR420CX6 RFG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AL5817MP-13 is determined by the following critical parameters:

Primary Substitution Criteria:

• Linear topology with single output configuration
• PWM dimming capability
• Output current rating of 15mA
• Supply voltage range compatibility (minimum 4.5V, maximum 60V)
• 8-MSOP package with exposed pad or equivalent surface-mount package
• Operating temperature range of -40°C to 105°C or wider

Substitution Categories:

Parametric Equivalents meet all primary electrical and mechanical specifications with identical or superior performance characteristics. These parts are direct functional replacements within the same manufacturer family or from alternative manufacturers offering equivalent ratings.

Manufacturer Recommended Alternatives are qualified substitutes from different manufacturers that satisfy the core functional requirements but may differ in secondary parameters such as internal switch configuration, frequency rating, or package variant. These parts require verification of application-specific requirements before implementation.

Parameter Comparison

Engineering Selection Recommendations

AL5814MP-13 and AL5814QMP-13 (Diodes Incorporated)

These parts are parametric equivalents to the AL5817MP-13, offering identical electrical specifications: 4.5V to 60V supply range, 15mA output current, PWM dimming, and 8-MSOP packaging. Both maintain ROHS3 compliance and active product status. The AL5814QMP-13 carries automotive-grade qualification (AEC-Q100), making it suitable for applications requiring automotive-level reliability. Selection between AL5814MP-13 and AL5814QMP-13 depends on whether automotive qualification is a design requirement.

BCR321UE6327HTSA1 (Infineon Technologies)

This part differs significantly in electrical performance: maximum supply voltage is limited to 25V, output voltage is 16V, and output current is 250mA. The BCR321UE6327HTSA1 includes an internal switch and lacks specified PWM dimming capability. This device is suitable only for applications where the reduced supply voltage range and higher current capability align with circuit requirements. Automotive qualification (AEC-Q101) is provided. Package format differs (SC-74 vs. 8-MSOP), requiring PCB layout modification.

TSCR420CX6 RFG (Taiwan Semiconductor Corporation)

This part carries obsolete product status, indicating discontinued manufacturing and potential long-term availability constraints. Supply voltage maximum is 40V, output voltage is 40V, and output current is 11mA, all differing from the AL5817MP-13 baseline. PWM dimming is supported. The part includes an internal switch and operates across an extended temperature range (-55°C to 150°C). Package format is SOT-23-6, requiring PCB redesign. Use of obsolete parts is not recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can AL5814MP-13 be used as a direct replacement for AL5817MP-13?

A: Yes. The AL5814MP-13 is a parametric equivalent with identical electrical specifications: 4.5V to 60V supply voltage, 15mA output current, PWM dimming, and 8-MSOP package. No circuit modifications are required.

Q: What is the difference between AL5814MP-13 and AL5814QMP-13?

A: Both parts share identical electrical specifications. The AL5814QMP-13 carries automotive-grade qualification (AEC-Q100) and is designated for automotive applications. Selection depends on whether automotive qualification is mandated by design requirements.

Q: Why is BCR321UE6327HTSA1 listed as a substitute if it has different electrical ratings?

A: The BCR321UE6327HTSA1 is listed as a manufacturer-recommended alternative for applications where higher output current (250mA) and lower supply voltage maximum (25V) are acceptable. It is not a direct replacement but rather a qualified alternative for specific use cases. Circuit verification is required before implementation.

Q: Can TSCR420CX6 RFG be used in new designs?

A: The TSCR420CX6 RFG carries obsolete product status, indicating discontinued production. Use in new designs is not recommended due to long-term availability and supply chain risks. Parametric equivalents AL5814MP-13 or AL5814QMP-13 are preferred alternatives.

Q: What package considerations apply when substituting these parts?

A: AL5817MP-13, AL5814MP-13, and AL5814QMP-13 all use the 8-MSOP package, allowing direct PCB substitution without layout modification. BCR321UE6327HTSA1 uses SC-74 (SOT-457) package, and TSCR420CX6 RFG uses SOT-23-6 package. These alternatives require PCB redesign and footprint verification.

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All parts listed—AL5817MP-13, AL5814MP-13, AL5814QMP-13, BCR321UE6327HTSA1, and TSCR420CX6 RFG—are ROHS3 compliant and REACH unaffected.

Q: What is the significance of internal switch configuration in these LED drivers?

A: AL5817MP-13, AL5814MP-13, and AL5814QMP-13 have no internal switches and require external switching elements for current control. BCR321UE6327HTSA1 and TSCR420CX6 RFG include internal switches, affecting circuit topology and component count. This difference impacts PCB design and must be evaluated during substitution planning.