AL5890-20D-13 Equivalent & Substitute Parts

Part Overview

The AL5890-20D-13 is a linear LED driver IC manufactured by Diodes Incorporated, designed for single-output lighting and signage applications. This device operates with a 20mA output current and supports supply voltages from 7V to 400V. The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Manufacturer Part Number	AL5890-20D-13
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Type	Linear
Number of Outputs	1
Voltage - Supply (Min)	7V
Voltage - Supply (Max)	400V
Current - Output / Channel	20mA
Dimming	No
Operating Temperature	-40°C ~ 105°C (TA)
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the AL5890-20D-13 is determined by the following critical parameters:

Output Current Capability: The original part delivers 20mA. Substitutes must meet or exceed this current requirement.
Supply Voltage Range: Operating range of 7V to 400V defines the input voltage compatibility window.
Package Type: TO-252-3 (DPAK) surface mount package with 2 leads plus tab.
Linear Driver Architecture: Single-output linear topology without internal switching.
Operating Temperature Range: -40°C to 105°C ambient temperature specification.
Compliance Standards: ROHS3 compliance and automotive-grade certifications where applicable.

Substitute parts are grouped into two categories:

Category 1: Parametric Equivalents — Parts from Diodes Incorporated with identical topology and package, varying only in output current (AL5890-30D-13).

Category 2: Functional Alternatives — Parts from alternative manufacturers with different packages, topologies, or enhanced features (PWM dimming, higher current ratings) that provide equivalent or superior performance for LED driver applications.

Parameter Comparison

Part Number	Manufacturer	Type	Package	Voltage Min (V)	Voltage Max (V)	Current Output (mA)	Dimming	Status	Temp Range (°C)
AL5890-20D-13	Diodes Inc.	Linear	TO-252-3 (DPAK)	7	400	20	No	Obsolete	-40 ~ 105
AL5890-30D-13	Diodes Inc.	Linear	TO-252-3 (DPAK)	7	400	30	No	Obsolete	-40 ~ 105
AL5810D-13	Diodes Inc.	Linear	TO-252-3 (DPAK)	2.5	60	200	PWM	Active	-40 ~ 105
MAX16828ASA+T	Analog Devices/Maxim	Linear	8-SOIC-EP	6.5	40	200	PWM	Active	-40 ~ 125
MAX16815ASA+T	Analog Devices/Maxim	Linear	8-SOIC-EP	6.5	40	100	PWM	Active	-40 ~ 125
A6260SLJTR-T	Allegro MicroSystems	Linear	8-SOIC-EP	6	40	350	PWM	Active	-20 ~ 85
IS32LT3175N-GRLA3-TR	Lumissil Microsystems	Linear	8-SOP-EP	5	42	150	PWM	Active	-40 ~ 125
MIC4801YM	Microchip Technology	Linear	8-SOIC	3	5.5	600	PWM	Active	-40 ~ 125
NSIC2030JBT3G	onsemi	Current Regulator	DO-214AA (SMB)	—	120	30	—	Active	-55 ~ 175
RT8456GE	Richtek USA Inc.	Linear	SOT-23-6	4.75	48	—	—	Active	-40 ~ 125

Engineering Selection Recommendations

For Direct Replacement (Same Package, Same Topology):

AL5890-30D-13 is the closest parametric equivalent, maintaining the TO-252-3 (DPAK) package and linear topology. Both parts are obsolete Diodes Incorporated devices with identical supply voltage range (7V–400V) and operating temperature specification (-40°C to 105°C). The 30mA output current exceeds the original 20mA requirement, providing margin for circuit design. Both are ROHS3 compliant.

For Active Production Designs:

AL5810D-13 (Diodes Incorporated) is an active-status alternative in the same TO-252-3 package. It features PWM dimming capability, lower minimum supply voltage (2.5V), and 200mA output current. This part is automotive-grade (AEC-Q100 qualified) with improved moisture sensitivity (MSL 1 vs. MSL 3). The reduced supply voltage range (2.5V–60V) requires circuit verification for high-voltage applications.

For Higher Current Requirements:

MAX16828ASA+T and MAX16815ASA+T (Analog Devices/Maxim Integrated) provide 200mA and 100mA output respectively in 8-SOIC-EP packages. Both are active-status parts with PWM dimming, AEC-Q100 automotive qualification, and extended operating temperature (-40°C to 125°C). Supply voltage range is 6.5V–40V. Package change from TO-252-3 to 8-SOIC-EP requires PCB layout modification.

For Low-Voltage Applications:

MIC4801YM (Microchip Technology) operates from 3V to 5.5V with 600mA output current in 8-SOIC package. This part is suitable for low-voltage LED driver circuits with higher current demands. Operating temperature range extends to 125°C. MSL rating is 1 (unlimited).

For Extended Temperature Range:

NSIC2030JBT3G (onsemi) is a current regulator rated for -55°C to 175°C operating temperature, exceeding standard industrial specifications. This part is packaged in DO-214AA (SMB) and delivers 30mA output current. It is active-status and ROHS3 compliant.

For Compact Form Factor:

RT8456GE (Richtek USA Inc.) offers a SOT-23-6 package for space-constrained applications. Supply voltage range is 4.75V–48V with active product status and -40°C to 125°C operating temperature. Specific output current and dimming capability are not specified in available data.

Frequently Asked Questions (FAQ)

Q: Can AL5890-30D-13 directly replace AL5890-20D-13 without circuit modification?

A: Yes. Both parts share identical package (TO-252-3 DPAK), topology (linear), supply voltage range (7V–400V), and operating temperature (-40°C to 105°C). The 30mA output current of AL5890-30D-13 exceeds the 20mA requirement, providing design margin. No PCB layout changes are required.

Q: Why do substitute parts have different packages (8-SOIC vs. TO-252)?

A: Package selection reflects manufacturing evolution and application requirements. 8-SOIC packages offer higher pin density and improved thermal performance in multi-channel designs. TO-252 (DPAK) packages provide single-output simplicity with integrated tab for heat dissipation. Package change requires PCB redesign but enables access to active-status parts with enhanced features.

Q: What is the significance of PWM dimming in substitute parts?

A: PWM (Pulse-Width Modulation) dimming enables brightness control through digital signal modulation, a feature absent in the original AL5890-20D-13. Substitute parts with PWM dimming (AL5810D-13, MAX16828ASA+T, MAX16815ASA+T, IS32LT3175N-GRLA3-TR, MIC4801YM) provide design flexibility for applications requiring variable LED brightness. Non-dimming designs can operate these parts with PWM held at fixed duty cycle.

Q: Are substitute parts automotive-qualified?

A: AL5810D-13, MAX16828ASA+T, MAX16815ASA+T, and IS32LT3175N-GRLA3-TR carry AEC-Q100 automotive qualification. NSIC2030JBT3G, MIC4801YM, and RT8456GE are active-status parts with ROHS3 compliance but do not specify AEC-Q100 qualification in provided data. Verify automotive requirements with manufacturer datasheets for specific applications.

Q: What is MSL (Moisture Sensitivity Level) and why does it matter?

A: MSL indicates the maximum time a component can be stored in ambient conditions (30°C, 60% relative humidity) before moisture absorption affects solderability. MSL 1 (unlimited) parts like AL5810D-13, MIC4801YM, and NSIC2030JBT3G have no storage time restrictions. MSL 3 (168 hours) parts like AL5890-20D-13 and AL5890-30D-13 require controlled storage and baking before reflow soldering. Higher MSL ratings reduce manufacturing process risk.

Q: Can NSIC2030JBT3G (current regulator) replace AL5890-20D-13 (LED driver)?

A: NSIC2030JBT3G is a current regulator with different functional architecture than the linear LED driver topology of AL5890-20D-13. While both deliver 30mA output current, the regulator's high/low-side sensing method and ±15% accuracy differ from the driver's fixed-output design. Substitution requires circuit redesign and is not recommended for direct replacement.

Q: What supply voltage range should I verify for substitute selection?

A: The original AL5890-20D-13 operates from 7V to 400V. Substitute parts have narrower ranges: AL5810D-13 (2.5V–60V), MAX16828ASA+T and MAX16815ASA+T (6.5V–40V), A6260SLJTR-T (6V–40V), IS32LT3175N-GRLA3-TR (5V–42V), MIC4801YM (3V–5.5V). Verify your circuit's supply voltage falls within the substitute part's specified range before selection.

Q: Is package compatibility critical for substitution?

A: Yes. Package type determines PCB footprint, thermal performance, and pin configuration. TO-252-3 (DPAK) and 8-SOIC-EP packages are not pin-compatible and require different PCB layouts. Switching packages necessitates schematic review, PCB redesign, and thermal analysis. For minimal design changes, prioritize substitutes in identical packages (AL5890-30D-13 in TO-252-3).

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