AL5802LPL-7 Equivalent & Substitute Parts

Part Overview

The AL5802LPL-7 is a linear LED driver IC manufactured by Diodes Incorporated, designed for single-output PWM dimming applications with a maximum output current of 120mA. This device operates across a wide supply voltage range of 4.5V to 30V and is housed in a 6-UDFN package with exposed pad. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

AL5802LPL-7

Diodes IncorporatedIn Stock: 24354AL5802LPL-7 Datasheet

Current PartRFQ

AD8240YRMZ

Analog Devices Inc.In Stock: 797AD8240YRMZ Datasheet

MFR RecommendedRFQ

BD8374HFP-MTR

Rohm SemiconductorIn Stock: 4819BD8374HFP-MTR Datasheet

MFR RecommendedRFQ

CL6N5-G

Microchip TechnologyIn Stock: 1271CL6N5-G Datasheet

MFR RecommendedRFQ

MAX16800ATE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1322MAX16800ATE+ Datasheet

MFR RecommendedRFQ

MAX16835ATE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1037MAX16835ATE+T Datasheet

MFR RecommendedRFQ

MAX16836ATE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2087MAX16836ATE+T Datasheet

MFR RecommendedRFQ

MAX16839ATT/V+T

Analog Devices Inc./Maxim IntegratedIn Stock: 5407MAX16839ATT/V+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AL5802LPL-7 is determined by the following critical parameters:

• Topology: Linear LED driver architecture
• Dimming Method: PWM (Pulse Width Modulation)
• Number of Outputs: Single output configuration
• Supply Voltage Range: Minimum 4.5V to maximum 30V overlap required
• Output Current Capability: 120mA or greater
• Internal Switch: Presence of integrated switching element
• Mounting Type: Surface mount technology
• Operating Temperature Range: -40°C to 125°C minimum
• Compliance: ROHS3 compliant, REACH unaffected

Substitute parts are grouped into two categories based on output current capacity and package form factor:

Group 1 - Direct Current Replacement (100mA-120mA): Parts with output current ratings at or near 120mA, suitable for direct pin-compatible or functional replacement in existing designs.

Group 2 - Higher Current Capability (350mA-500mA): Parts with elevated output current ratings, applicable when design margins or future scaling requirements necessitate higher current delivery.

Parameter Comparison

Engineering Selection Recommendations

MAX16839ATT/V+T is the closest functional equivalent to the AL5802LPL-7. Both devices feature 100mA output current capability, integrated internal switches, and identical operating temperature ranges. The MAX16839ATT/V+T maintains supply voltage compatibility (5V to 40V) and is housed in a similar 6-pin DFN package. This part carries active product status with automotive-grade qualification and is recommended for direct replacement in new designs.

BD8374HFP-MTR provides the highest current capability at 500mA with matching 4.5V minimum supply voltage, making it suitable for applications requiring increased output current or design margin. This Rohm Semiconductor device includes AEC-Q100 automotive qualification and active product status. The HRP-7 package requires PCB layout modification compared to the original DFN footprint.

MAX16800ATE+, MAX16835ATE+T, and MAX16836ATE+T offer 350mA output current in 16-TQFN packages. These parts are suitable when higher current delivery is required while maintaining the same linear PWM dimming architecture. All three carry active product status and automotive-grade qualification.

CL6N5-G from Microchip Technology operates across an extended supply voltage range (6.5V to 90V) and is available in through-hole TO-220-3 packaging. This part is applicable for designs requiring wide input voltage tolerance, though PCB layout differs significantly from the original surface-mount DFN package.

AD8240YRMZ from Analog Devices lacks an internal switch and operates with a minimum 9V supply voltage, limiting its applicability as a direct replacement. This part is classified as Last Time Buy and is not recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can MAX16839ATT/V+T directly replace AL5802LPL-7 in existing PCB designs?

A: MAX16839ATT/V+T is functionally equivalent but requires verification of pinout compatibility and PCB footprint alignment. Both devices use 6-pin DFN packages with exposed pads, though minor dimensional differences may exist between UDFN and WDFN variants. Consult device datasheets for exact pin assignments and thermal pad specifications.

Q: What is the primary difference between the 100mA and 350mA substitute options?

A: Output current rating is the primary distinction. The 100mA options (MAX16839ATT/V+T, CL6N5-G) match the original AL5802LPL-7 current specification, while 350mA and 500mA options provide increased current delivery for higher-power LED applications or design margin. Selection depends on actual LED load requirements and thermal management capabilities.

Q: Why does AD8240YRMZ lack an internal switch?

A: AD8240YRMZ is designed as a PWM dimming controller requiring external switching elements, whereas the AL5802LPL-7 integrates the switching function internally. This architectural difference necessitates additional external components and is not recommended as a direct replacement.

Q: Is CL6N5-G suitable for designs requiring compact surface-mount packages?

A: No. CL6N5-G uses through-hole TO-220-3 packaging, which is significantly larger than the original 6-UDFN surface-mount form factor. This part is applicable only for designs where through-hole mounting is acceptable or required.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts listed are ROHS3 compliant and REACH unaffected. MAX16839ATT/V+T, MAX16800ATE+, MAX16835ATE+T, MAX16836ATE+T, and BD8374HFP-MTR carry automotive-grade qualification. AD8240YRMZ includes automotive-grade designation despite Last Time Buy status.

Q: Can I use a 350mA or 500mA substitute in place of the 120mA original part?

A: Yes, provided the application circuit and thermal design accommodate the higher current capability. Higher-rated devices are backward-compatible with lower-current applications. Verify that PCB layout, power dissipation, and thermal management are adequate for the selected substitute.

Q: What is the significance of "Last Time Buy" status for AD8240YRMZ?

A: Last Time Buy indicates the manufacturer has announced end-of-life for this part. Existing inventory may be available, but no future production is planned. This status makes AD8240YRMZ unsuitable for long-term production commitments or new design qualification.