AL5890-20Y-13 LED Driver IC Equivalent & Substitute Parts

Part Overview

The AL5890-20Y-13 is a linear LED driver IC manufactured by Diodes Incorporated, designed for single-output lighting and signage applications. This device operates with a supply voltage range of 7V to 400V and delivers 20mA output current without dimming capability. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while accommodating modern active product status and enhanced performance specifications.

Substiute Parts

AL5890-20Y-13

Diodes IncorporatedIn Stock: 5126AL5890-20Y-13 Datasheet

Current PartRFQ

CL7SG-G

Microchip TechnologyIn Stock: 1070CL7SG-G Datasheet

MFR RecommendedRFQ

MIC4801YM-TR

Microchip TechnologyIn Stock: 8647MIC4801YM-TR Datasheet

MFR RecommendedRFQ

R2A20135SP#W5

Renesas Electronics CorporationIn Stock: 8663R2A20135SP#W5 Datasheet

MFR RecommendedRFQ

STCS05DR

STMicroelectronicsIn Stock: 3057STCS05DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the AL5890-20Y-13 is based on the following critical parameters: linear topology, single output configuration, surface mount packaging, and ROHS3 compliance. The original part operates across an exceptionally wide supply voltage range (7V to 400V) with fixed 20mA output and no dimming functionality.

Substitute parts are grouped into two categories based on application compatibility:

Category A - High Voltage Supply Range (6.5V to 90V minimum): Parts suitable for applications requiring elevated supply voltages while maintaining linear operation and single-output architecture. These parts introduce PWM dimming capability, which is functionally compatible with non-dimming applications through fixed configuration.

Category B - Low Voltage Supply Range (3V to 5.5V): Parts optimized for lower supply voltage systems with enhanced current delivery and PWM dimming support. These substitutes require voltage regulation verification in the target application.

All substitute candidates maintain ROHS3 compliance, surface mount technology, and linear driver topology. Package transitions from SOT-89-5 to 8-SOIC represent industry-standard miniaturization with equivalent thermal and electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

CL7SG-G (Microchip Technology): Active product status with supply voltage range of 6.5V to 90V and 100mA output current. Suitable for applications requiring moderate current delivery and PWM dimming flexibility. Operating temperature extends to 119°C (TJ). ROHS3 compliant with unlimited moisture sensitivity level.

MIC4801YM-TR (Microchip Technology): Active product with internal switch and 600mA output capability. Optimized for low-voltage supply systems (3V to 5.5V). Highest current delivery among substitutes with PWM dimming support. Operating temperature reaches 125°C (TJ). ROHS3 compliant. Requires voltage regulation verification for applications originally designed for higher supply voltages.

R2A20135SP#W5 (Renesas Electronics Corporation): Active product with supply voltage range of 8.5V to 24V and multi-mode dimming support (Analog, PWM, TRIAC). Highest operating temperature specification at 150°C (TJ). Suitable for applications requiring flexible dimming control. ROHS3 compliant. Output current specification not provided in technical data.

STCS05DR (STMicroelectronics): Active product with internal switch and 500mA output current. Supply voltage range of 4.5V to 40V with PWM dimming capability. Operating temperature reaches 150°C (TJ). ROHS3 compliant. Balanced performance across voltage and current specifications.

All substitute parts maintain active product status, ensuring long-term availability and manufacturing support. Selection should prioritize supply voltage compatibility with the target application circuit design.

Frequently Asked Questions (FAQ)

Q: Can the AL5890-20Y-13 be directly replaced with any of these substitutes without circuit modification?

A: Direct replacement requires verification of supply voltage compatibility. The original part operates from 7V to 400V. CL7SG-G (6.5V to 90V) and R2A20135SP#W5 (8.5V to 24V) are compatible with the lower voltage range. MIC4801YM-TR (3V to 5.5V) and STCS05DR (4.5V to 40V) require circuit voltage verification. Package change from SOT-89-5 to 8-SOIC requires PCB layout modification.

Q: What is the impact of the package change from SOT-89-5 to 8-SOIC?

A: The transition from SOT-89-5 to 8-SOIC represents a standard industry miniaturization. Both packages are surface mount technologies with equivalent thermal performance. PCB footprint redesign is required. Pin configuration must be verified against the specific substitute part datasheet.

Q: Why do substitute parts include PWM dimming when the original part has no dimming?

A: PWM dimming capability in substitute parts is functionally compatible with non-dimming applications. The dimming input can be configured as fixed high or left unconnected, depending on the specific device design. This does not compromise operation in fixed-brightness applications.

Q: Which substitute part best matches the original 20mA output specification?

A: CL7SG-G delivers 100mA output current, the closest match to the original 20mA specification. This higher current capability provides design flexibility while maintaining linear operation. Current limiting resistors can be adjusted to achieve the required 20mA output in the target application.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All four substitute parts (CL7SG-G, MIC4801YM-TR, R2A20135SP#W5, and STCS05DR) are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), matching the original part's compliance status.

Q: What is the primary limitation when substituting for the AL5890-20Y-13's 400V maximum supply voltage?

A: No substitute part matches the original 400V maximum supply voltage specification. The highest substitute maximum is 90V (CL7SG-G). Applications requiring operation above 90V supply voltage cannot use these substitutes and require alternative component selection or voltage regulation implementation.

Q: Which substitute offers the widest operating temperature range?

A: R2A20135SP#W5 and STCS05DR both offer -40°C to 150°C (TJ) operating temperature range, exceeding the original part's -40°C to 105°C (TA) specification. This provides enhanced thermal margin for demanding applications.