MP4031GS LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP4031GS is an AC DC offline switcher LED driver IC manufactured by Monolithic Power Systems, designed for lighting applications with TRIAC dimming capability. This single-output flyback topology device operates across a 11V to 27V supply range in an 8-SOIC surface mount package. The part is currently active in production with ROHS3 compliance and 2680 units available in inventory.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, lead time considerations, or specific application parameter needs while maintaining functional compatibility within the AC DC offline switcher LED driver category.

Substiute Parts

MP4031GS

Monolithic Power SystemsIn Stock: 2753MP4031GS Datasheet

Current PartRFQ

HVLED815PFTR

STMicroelectronicsIn Stock: 39366HVLED815PFTR Datasheet

MFR RecommendedRFQ

LM3447MTX/NOPB

Texas InstrumentsIn Stock: 60496LM3447MTX/NOPB Datasheet

MFR RecommendedRFQ

LM3450AMT/NOPB

Texas InstrumentsIn Stock: 1255LM3450AMT/NOPB Datasheet

MFR RecommendedRFQ

TPS92074DDCR

Texas InstrumentsIn Stock: 3932TPS92074DDCR Datasheet

MFR RecommendedRFQ

TPS92315DBVT

Texas InstrumentsIn Stock: 1646TPS92315DBVT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP4031GS is determined by the following core parameters: AC DC offline switcher topology, single output configuration, flyback or compatible switching topology, surface mount packaging, and ROHS3 compliance. The dimming method (Analog or TRIAC) and supply voltage range establish functional boundaries for direct substitution.

Five qualified substitute parts have been identified:

TPS92315DBVT (Texas Instruments): Flyback topology, 9V to 35V supply range, SOT-23-6 package, 130kHz frequency, ROHS3 compliant.

HVLED815PFTR (STMicroelectronics): Flyback topology with internal switch, 11.5V to 23V supply range, 16-SOIC package, 166kHz PWM dimming, ROHS3 compliant.

LM3447MTX/NOPB (Texas Instruments): Flyback topology, 7.5V to 17.5V supply range, 14-TSSOP package, TRIAC dimming, ROHS3 compliant.

LM3450AMT/NOPB (Texas Instruments): Flyback and Step-Up (Boost) topology with internal switch, 8.5V to 20V supply range, 16-TSSOP package, Analog dimming, ROHS3 compliant.

TPS92074DDCR (Texas Instruments): Step-Down (Buck) and Step-Up (Boost) topology, 11V to 18V supply range, SOT-23-THIN package, ROHS3 compliant.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and ROHS3 compliance, meeting baseline regulatory and availability requirements. Selection among substitutes depends on specific application constraints:

TPS92315DBVT offers the widest supply voltage range (9V to 35V) and smallest footprint (SOT-23-6), suitable for designs requiring maximum input voltage flexibility with minimal board space.

HVLED815PFTR provides the highest operating temperature ceiling (150°C) and integrated internal switch, appropriate for thermal-demanding applications, though PWM dimming differs from the original TRIAC capability.

LM3447MTX/NOPB maintains TRIAC dimming compatibility with the MP4031GS and operates across 7.5V to 17.5V, packaged in 14-TSSOP with unlimited moisture sensitivity rating (MSL 1).

LM3450AMT/NOPB combines Flyback and Step-Up (Boost) topology with internal switch and Analog dimming across 8.5V to 20V, packaged in 16-TSSOP with unlimited moisture sensitivity rating.

TPS92074DDCR features Step-Down and Step-Up (Boost) topology in compact SOT-23-THIN packaging across 11V to 18V, suitable for applications requiring buck-boost functionality.

Frequently Asked Questions (FAQ)

Q: Can TPS92315DBVT directly replace MP4031GS in existing designs?

A: TPS92315DBVT shares flyback topology and single-output configuration with MP4031GS. The supply voltage range (9V to 35V) encompasses the original 11V to 27V specification. However, the package differs (SOT-23-6 versus 8-SOIC), requiring PCB layout modification. Dimming capability is not specified for TPS92315DBVT, requiring application verification.

Q: What is the primary difference between HVLED815PFTR and MP4031GS?

A: HVLED815PFTR integrates an internal switch and operates at 166kHz with PWM dimming, whereas MP4031GS lacks an internal switch and supports Analog and TRIAC dimming. The supply range differs (11.5V to 23V versus 11V to 27V). Package size increases from 8-SOIC to 16-SOIC. Operating temperature extends to 150°C.

Q: Why does LM3447MTX/NOPB maintain TRIAC dimming compatibility?

A: LM3447MTX/NOPB is explicitly specified with TRIAC dimming capability, matching the MP4031GS dimming method. Both devices support TRIAC-based dimming control for lighting applications. Supply voltage range differs (7.5V to 17.5V versus 11V to 27V), and packaging changes from 8-SOIC to 14-TSSOP.

Q: What packaging considerations apply when substituting these parts?

A: MP4031GS uses 8-SOIC (0.154", 3.90mm width). Substitutes employ different packages: TPS92315DBVT and TPS92074DDCR use SOT-23-6 variants (smaller footprint), HVLED815PFTR uses 16-SOIC (same width, larger pin count), and LM3447MTX/NOPB and LM3450AMT/NOPB use 14-TSSOP and 16-TSSOP respectively. PCB layout redesign is required for any package change.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance certification, matching the MP4031GS regulatory status. REACH status is unaffected for all parts.

Q: Which substitute offers the best thermal performance?

A: HVLED815PFTR operates across -40°C to 150°C (TJ), providing the highest maximum junction temperature specification among all listed parts. MP4031GS and most other substitutes are rated to 125°C maximum.