AL5802LP-7 Equivalent & Substitute Parts

Part Overview

The AL5802LP-7 is a linear LED driver IC manufactured by Diodes Incorporated, designed for single-output PWM dimming applications with 150mA output capability. This device is classified as obsolete, making equivalent and substitute parts necessary for new designs and production continuity. The AL5802LP-7 operates across a 4.5V to 30V supply range and is suitable for signage and lighting applications requiring linear PWM dimming control.

Key Parameters

Parameter	AL5802LP-7
Manufacturer	Diodes Incorporated
Product Status	Obsolete
Type	Linear
Number of Outputs	1
Voltage - Supply (Min)	4.5V
Voltage - Supply (Max)	30V
Current - Output / Channel	150mA
Dimming	PWM
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	6-UFDFN Exposed Pad
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the AL5802LP-7 is determined by the following critical parameters:

Linear topology with PWM dimming capability
Single output configuration
150mA output current rating
Operating temperature range of -40°C to 125°C
ROHS3 compliance and surface mount packaging
Supply voltage compatibility within or overlapping the 4.5V to 30V range

The substitute parts are grouped into two categories based on functional equivalence and application suitability:

Category 1: Direct Functional Equivalents (150mA Output)

IS32LT3175N-GRLA3-TR (Lumissil Microsystems)
MAX16815ASA+T (Analog Devices Inc./Maxim Integrated)

Category 2: Enhanced Performance Alternative (350mA Output)

MAX16836ATE+T (Analog Devices Inc./Maxim Integrated)

Category 3: Specialized Function (Current Regulator)

NSIC2030JBT3G (onsemi)

Parameter Comparison

Parameter	AL5802LP-7	IS32LT3175N-GRLA3-TR	MAX16815ASA+T	MAX16836ATE+T	NSIC2030JBT3G
Manufacturer	Diodes Incorporated	Lumissil Microsystems	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	onsemi
Product Status	Obsolete	Active	Active	Active	Active
Type	Linear	Linear	Linear	Linear	Current Regulator
Number of Outputs	1	1	1	1	N/A
Voltage - Supply (Min)	4.5V	5V	6.5V	6.5V	120V
Voltage - Supply (Max)	30V	42V	40V	40V	120V
Current - Output / Channel	150mA	150mA	100mA	350mA	30mA
Dimming	PWM	PWM	PWM	PWM	N/A
Operating Temperature	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TJ)	-55°C ~ 175°C
Package / Case	6-UFDFN Exposed Pad	8-SOIC (0.154", 3.90mm Width) Exposed Pad	8-SOIC (0.154", 3.90mm Width) Exposed Pad	16-WQFN Exposed Pad	DO-214AA, SMB
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

IS32LT3175N-GRLA3-TR is the primary recommended substitute for the AL5802LP-7. This part maintains functional equivalence with 150mA output current and PWM dimming capability. The device is in active production status with automotive-grade qualification (AEC-Q100), providing enhanced reliability for critical applications. The supply voltage range extends to 42V maximum, offering broader design flexibility. Package transition from 6-UFDFN to 8-SOIC-EP requires PCB layout modification.

MAX16815ASA+T serves as an alternative substitute with active product status and unlimited moisture sensitivity rating (MSL 1). Output current is rated at 100mA, which is lower than the AL5802LP-7 specification. This part is suitable for applications where 100mA output current meets design requirements. Supply voltage range is 6.5V to 40V, with minimum supply voltage higher than the original part.

MAX16836ATE+T is an enhanced-performance alternative with 350mA output current capability, suitable for designs requiring higher LED drive current than the original 150mA specification. This part includes automotive-grade qualification and operates within the same temperature range. The 16-TQFN package requires significant PCB redesign compared to the original 6-UFDFN footprint.

NSIC2030JBT3G is a current regulator with fundamentally different function and application scope. This part is not recommended as a direct substitute due to its specialized current regulation topology and incompatible electrical characteristics.

Frequently Asked Questions (FAQ)

Q: Can IS32LT3175N-GRLA3-TR directly replace AL5802LP-7 without design changes?

A: IS32LT3175N-GRLA3-TR provides functional equivalence in terms of output current (150mA) and PWM dimming capability. However, package transition from 6-UFDFN to 8-SOIC-EP requires PCB layout modification. Pin configuration and control signal compatibility must be verified against application schematics.

Q: What is the key difference between MAX16815ASA+T and AL5802LP-7?

A: MAX16815ASA+T has a lower output current rating of 100mA compared to the AL5802LP-7 specification of 150mA. Additionally, the minimum supply voltage is 6.5V versus 4.5V for the original part. This part is suitable only for applications where 100mA output current is sufficient.

Q: Why is MAX16836ATE+T listed as a substitute if it has 350mA output?

A: MAX16836ATE+T is listed as an enhanced-performance alternative for designs that require higher LED drive current than the original 150mA specification. The higher current capability provides design margin for future performance upgrades. Package and pinout differences require full circuit redesign.

Q: Is NSIC2030JBT3G a suitable replacement for AL5802LP-7?

A: No. NSIC2030JBT3G is a current regulator with fundamentally different topology and function. It is not suitable as a direct substitute for the AL5802LP-7 LED driver IC.

Q: What are the supply voltage compatibility considerations?

A: AL5802LP-7 operates from 4.5V to 30V. IS32LT3175N-GRLA3-TR operates from 5V to 42V, MAX16815ASA+T from 6.5V to 40V, and MAX16836ATE+T from 6.5V to 40V. Designs operating below 5V or 6.5V supply voltage require verification of substitute part suitability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, consistent with the original AL5802LP-7 specification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message