AL3065S16-13 LED Driver IC Equivalent & Substitute Parts

Part Overview

The AL3065S16-13 is a 4-output LED driver controller manufactured by Diodes Incorporated, designed for backlight applications requiring step-up (boost) topology with analog and PWM dimming capabilities. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and design continuity. The AL3065S16-13 delivers 250mA per channel output current across a 4.5V to 33V supply range with a maximum output voltage of 60V, operating at frequencies between 100kHz and 1MHz.

Substiute Parts

AL3065S16-13

Diodes IncorporatedIn Stock: 45359AL3065S16-13 Datasheet

Current PartRFQ

BD81A34MUV-ME2

ROHM SemiconductorIn Stock: 3918BD81A34MUV-ME2 Datasheet

MFR RecommendedRFQ

ISL97687IRTZ

Renesas Electronics CorporationIn Stock: 3064ISL97687IRTZ Datasheet

MFR RecommendedRFQ

MP3394EF-LF

Monolithic Power SystemsIn Stock: 999MP3394EF-LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AL3065S16-13 is determined by the following critical parameters: topology (step-up boost converter), number of outputs (4-channel), supply voltage range compatibility (minimum 4.5V input), output current capability per channel, dimming control method (analog and/or PWM), and operating temperature range. Substitute parts must maintain functional equivalence in backlight LED driver applications while accommodating variations in package type, maximum output voltage, and frequency operating range. The following substitute parts meet these criteria based on their specified electrical characteristics and application suitability.

Parameter Comparison

Engineering Selection Recommendations

BD81A34MUV-ME2 (ROHM Semiconductor) provides a 4-output boost controller with supply voltage compatibility (4.5V minimum) and extended temperature range (-40°C to 125°C). However, this part is marked "Not For New Designs" and delivers reduced output current (120mA per channel versus 250mA). The package format changes from 16-SOIC to 28-VFQFN, requiring PCB layout modifications.

ISL97687IRTZ (Renesas Electronics Corporation) is the only substitute with active product status, supporting both analog and PWM dimming identical to the AL3065S16-13. This part operates at 9V minimum supply voltage (higher than the original 4.5V), delivers 160mA per channel, and uses a 28-WFQFN package. The active status provides long-term availability assurance.

MP3394EF-LF (Monolithic Power Systems) is discontinued at DiGi Electronics and marked with reduced temperature range (-20°C to 125°C junction temperature). It delivers 200mA per channel with PWM-only dimming and operates at 540kHz fixed frequency. The 16-TSSOP package maintains closer form-factor compatibility with the original 16-SOIC.

For new designs requiring long-term component availability, ISL97687IRTZ is recommended due to active product status. For existing designs with 4.5V minimum supply requirements and higher output current demands, BD81A34MUV-ME2 or MP3394EF-LF may serve as interim solutions with design verification of reduced current capability and package changes.

Frequently Asked Questions (FAQ)

Q: Can BD81A34MUV-ME2 directly replace AL3065S16-13 in existing designs?

A: BD81A34MUV-ME2 is functionally equivalent for 4-output boost LED driver applications but has reduced output current per channel (120mA versus 250mA). The package changes from 16-SOIC to 28-VFQFN, requiring PCB redesign. Supply voltage range compatibility begins at 4.5V, matching the original specification.

Q: What is the primary limitation of ISL97687IRTZ as a substitute?

A: ISL97687IRTZ requires a minimum supply voltage of 9V, whereas the AL3065S16-13 operates from 4.5V. This part is suitable only for applications with 9V or higher input voltage. Output current per channel is 160mA, lower than the original 250mA specification.

Q: Why is MP3394EF-LF marked as discontinued?

A: MP3394EF-LF is discontinued at DiGi Electronics and no longer actively distributed. While it provides 200mA per channel output current and maintains a 16-pin package format similar to the original, its availability is limited and future sourcing is not assured.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. AL3065S16-13, BD81A34MUV-ME2, ISL97687IRTZ, and MP3394EF-LF are all ROHS3 compliant, meeting environmental and regulatory requirements for lead-free manufacturing.

Q: Which substitute part has the widest operating temperature range?

A: BD81A34MUV-ME2 and MP3394EF-LF both support -40°C to 125°C operating range, exceeding the original AL3065S16-13 specification of -40°C to 85°C. ISL97687IRTZ operates from -40°C to 105°C.

Q: Do all substitutes support both analog and PWM dimming?

A: No. ISL97687IRTZ supports both analog and PWM dimming, matching the AL3065S16-13. BD81A34MUV-ME2 and MP3394EF-LF support PWM dimming only, which may require firmware or circuit modifications in applications requiring analog dimming control.