ASL1500SHNY LED Driver Controller Equivalent & Substitute Parts

Part Overview

The ASL1500SHNY is an active LED driver controller IC manufactured by NXP USA Inc., classified as a Power Management PMIC. This device functions as a DC-DC boost controller with a single output, designed for lighting applications requiring high-voltage output up to 80V. The part is in active product status with AEC-Q100 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are identified based on matching functional topology, electrical operating ranges, and package compatibility to support design flexibility and supply chain continuity.

Substiute Parts

ASL1500SHNY

NXP USA Inc.In Stock: 792ASL1500SHNY Datasheet

Current PartRFQ

LT3756EUD#PBF

Analog Devices Inc.In Stock: 2429LT3756EUD#PBF Datasheet

MFR RecommendedRFQ

LT3922EUFD#PBF

Analog Devices Inc.In Stock: 1893LT3922EUFD#PBF Datasheet

MFR RecommendedRFQ

NCS29001DR2G

onsemiIn Stock: 5095NCS29001DR2G Datasheet

MFR RecommendedRFQ

RT8496GS

Richtek USA Inc.In Stock: 1232RT8496GS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ASL1500SHNY are selected based on the following criteria:

Primary Substitution Parameters:

• DC-DC controller topology (Boost or multi-topology support including Boost)
• Single output configuration
• Operating temperature range of -40°C to 125°C or compatible
• Supply voltage range overlap with 5.5V to 40V input specification
• Output voltage capability at or above 80V
• Active product status
• ROHS3 compliance
• Surface mount technology

Secondary Compatibility Factors:

• Dimming capability (PWM and/or Analog support)
• Lighting application classification
• Automotive grade qualification (where applicable)
• Frequency range compatibility within 100kHz to 2MHz

The identified substitutes maintain functional equivalence for boost-topology LED driver applications while accommodating variations in package form factor, internal switch configuration, and extended feature sets.

Parameter Comparison

Engineering Selection Recommendations

LT3756EUD#PBF (Analog Devices Inc.) Multi-topology controller supporting Flyback, SEPIC, Buck, and Boost configurations. Extended supply voltage range to 100V provides design margin. Supports both Analog and PWM dimming. Smaller 16-QFN package reduces board footprint. Moisture sensitivity level 1 indicates superior moisture resistance compared to ASL1500SHNY. Suitable for applications requiring topology flexibility.

LT3922EUFD#PBF (Analog Devices Inc.) Dedicated boost topology controller with automotive grade qualification matching ASL1500SHNY. Supports Analog and PWM dimming with 2.3A output current specification. Supply voltage range 2.8V to 36V accommodates lower input sources. Higher frequency capability (200kHz ~ 2MHz) enables smaller passive component sizing. 28-QFN package provides intermediate pin count. Moisture sensitivity level 1 offers improved reliability.

NCS29001DR2G (onsemi) Boost topology controller in 14-SOIC package for compact designs. PWM dimming support for lighting applications. Supply voltage range 8.5V to 18V is narrower than ASL1500SHNY, limiting input flexibility. Operating temperature maximum of 85°C is lower than ASL1500SHNY specification. Suitable for backlight and lighting applications with constrained thermal and input voltage requirements.

RT8496GS (Richtek USA Inc.) Multi-topology controller supporting both Buck and Boost configurations. Highest output voltage capability at 150V exceeds ASL1500SHNY 80V specification. Supports Analog and PWM dimming. Supply voltage range 4.5V to 36V provides broad input compatibility. 14-SOP package matches NCS29001DR2G footprint. Moisture sensitivity level 3 matches ASL1500SHNY. Suitable for high-voltage output applications.

Frequently Asked Questions (FAQ)

Q: Can LT3756EUD#PBF replace ASL1500SHNY in a boost-only application? A: Yes. LT3756EUD#PBF supports boost topology within the required frequency and voltage ranges. The multi-topology capability does not prevent boost-only operation. Package change from 32-VFQFN to 16-QFN requires PCB layout modification.

Q: What is the impact of NCS29001DR2G's 85°C maximum operating temperature versus ASL1500SHNY's 125°C? A: NCS29001DR2G has a 40°C lower maximum junction temperature rating. Applications requiring sustained operation above 85°C ambient or with high power dissipation must use alternative parts. Verify thermal design margins before selection.

Q: Does LT3922EUFD#PBF automotive grade qualification match ASL1500SHNY? A: Yes. Both parts carry automotive grade designation. LT3922EUFD#PBF includes AEC-Q100 qualification equivalent to ASL1500SHNY, supporting automotive application requirements.

Q: Why does RT8496GS specify 150V output versus ASL1500SHNY's 80V? A: RT8496GS is rated for higher output voltage capability. This specification indicates maximum achievable output, not a requirement. RT8496GS can be configured for 80V output in boost applications matching ASL1500SHNY performance.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All identified substitutes—LT3756EUD#PBF, LT3922EUFD#PBF, NCS29001DR2G, and RT8496GS—are ROHS3 compliant, matching ASL1500SHNY environmental compliance.

Q: What package considerations apply when switching from ASL1500SHNY to smaller alternatives? A: LT3756EUD#PBF (16-QFN) and NCS29001DR2G/RT8496GS (14-SOIC) require PCB redesign due to different pin counts and footprints. LT3922EUFD#PBF (28-QFN) provides intermediate pin count closer to ASL1500SHNY (32-VFQFN). Verify pinout compatibility and signal routing before layout changes.

Q: Which substitute offers the best moisture resistance? A: LT3756EUD#PBF and LT3922EUFD#PBF both specify Moisture Sensitivity Level 1 (Unlimited), superior to ASL1500SHNY and RT8496GS at MSL 3 (168 Hours). MSL 1 parts require no moisture bake-out prior to reflow soldering.