MP24894GJ-Z LED Driver Controller Equivalent & Substitute Parts

Part Overview

The MP24894GJ-Z is an active LED driver controller IC manufactured by Monolithic Power Systems Inc., designed for step-down (buck) topology DC-DC conversion with analog and PWM dimming capabilities. This TSOT-23-6 surface mount device operates across a 6V to 60V supply range and is qualified to automotive grade standards. The part is actively produced and widely available in inventory (56,400 units in stock). Equivalent and substitute parts are identified to address supply chain continuity, packaging preferences, or specific application requirements while maintaining functional compatibility within the LED driver controller category.

Substiute Parts

MP24894GJ-Z

Monolithic Power Systems Inc.In Stock: 56425MP24894GJ-Z Datasheet

Current PartRFQ

MP24894GJ-P

Monolithic Power Systems Inc.In Stock: 1970MP24894GJ-P Datasheet

Parametric EquivalentRFQ

HV9910CLG-G

Microchip TechnologyIn Stock: 17459HV9910CLG-G Datasheet

MFR RecommendedRFQ

LM3401MM/NOPB

Texas InstrumentsIn Stock: 10377LM3401MM/NOPB Datasheet

MFR RecommendedRFQ

LM3401MMX/NOPB

Texas InstrumentsIn Stock: 3559LM3401MMX/NOPB Datasheet

MFR RecommendedRFQ

LM3409QMY/NOPB

Texas InstrumentsIn Stock: 17181LM3409QMY/NOPB Datasheet

MFR RecommendedRFQ

LT3743IFE#PBF

Analog Devices Inc.In Stock: 29929LT3743IFE#PBF Datasheet

MFR RecommendedRFQ

LT3922IUFD#PBF

Analog Devices Inc.In Stock: 1545LT3922IUFD#PBF Datasheet

MFR RecommendedRFQ

LT8391AEUFD#PBF

Analog Devices Inc.In Stock: 884LT8391AEUFD#PBF Datasheet

MFR RecommendedRFQ

MAX1698EUB+

Analog Devices Inc./Maxim IntegratedIn Stock: 3888MAX1698EUB+ Datasheet

MFR RecommendedRFQ

MIC3203YM

Microchip TechnologyIn Stock: 7806MIC3203YM Datasheet

MFR RecommendedRFQ

TPS92640PWPR/NOPB

Texas InstrumentsIn Stock: 2003TPS92640PWPR/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the MP24894GJ-Z is based on the following critical parameters: DC-DC controller type, step-down (buck) topology, single output configuration, 1MHz switching frequency, analog and PWM dimming capability, automotive grade qualification, and TSOT-23-6 package compatibility. Parts are grouped into two categories:

Parametric Equivalent (Same Base Product): MP24894GJ-P differs only in packaging format (Tape & Reel vs. Cut Tape), maintaining identical electrical specifications and automotive qualification.

Manufacturer Recommended Substitutes: Parts from Texas Instruments, Analog Devices, and Microchip Technology that provide step-down buck topology with PWM dimming, operating temperature range of -40°C to 125°C, and automotive-grade qualification. These substitutes may vary in package type, supply voltage range, frequency, and dimming capabilities while maintaining functional compatibility for LED driver applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Parametric Equivalent: MP24894GJ-P is the direct equivalent, differing only in packaging format (Tape & Reel). Selection between MP24894GJ-Z (Cut Tape) and MP24894GJ-P depends on procurement and assembly requirements. Both maintain identical electrical performance and automotive qualification.

Automotive-Grade Substitutes: LM3409QMY/NOPB and LT8391AEUFD#PBF are qualified to automotive standards (AEC-Q100 or automotive grade). LM3409QMY/NOPB provides step-down buck topology with analog and PWM dimming across 6V to 42V, suitable for applications within the MP24894GJ-Z voltage range. LT8391AEUFD#PBF offers dual topology (buck and boost) with extended 4V to 60V range and automotive qualification, providing additional design flexibility.

Industrial-Grade Substitutes: LM3401MM/NOPB, LM3401MMX/NOPB, LT3743IFE#PBF, and MIC3203YM provide step-down buck topology with PWM dimming and -40°C to 125°C operating temperature. These parts are suitable for applications where automotive qualification is not required. LT3743IFE#PBF operates across 6V to 36V with frequency range of 200kHz to 1MHz, closely matching the MP24894GJ-Z supply voltage and frequency specifications.

Non-Recommended Substitutes: LT3922IUFD#PBF uses step-up (boost) topology, fundamentally different from the step-down requirement. MAX1698EUB+ operates at reduced supply voltage (2.7V to 5.5V) and lower operating temperature maximum (85°C), making it unsuitable for the MP24894GJ-Z application profile. HV9910CLG-G operates at significantly higher supply voltages (15V to 450V) with lower switching frequencies (25kHz, 100kHz), limiting compatibility with the original design specifications.

Frequently Asked Questions (FAQ)

Q: Can MP24894GJ-P be used as a direct replacement for MP24894GJ-Z?

A: Yes. MP24894GJ-P is a parametric equivalent with identical electrical specifications and automotive qualification. The only difference is packaging format: MP24894GJ-Z is supplied in Cut Tape format, while MP24894GJ-P is supplied in Tape & Reel format. Selection depends on assembly line requirements and procurement preferences.

Q: What is the primary difference between the MP24894GJ-Z and LM3409QMY/NOPB?

A: Both are automotive-grade step-down buck controllers with analog and PWM dimming. The MP24894GJ-Z operates across 6V to 60V with 1MHz frequency in a TSOT-23-6 package. The LM3409QMY/NOPB operates across 6V to 42V in a 10-HVSSOP package. The LM3409QMY/NOPB is suitable for applications within the 6V to 42V range but cannot support the full 60V maximum of the original part.

Q: Is LT8391AEUFD#PBF compatible with MP24894GJ-Z applications?

A: LT8391AEUFD#PBF provides step-down (buck) and step-up (boost) topology with automotive qualification and -40°C to 125°C operating temperature. It operates across 4V to 60V with analog and PWM dimming. For applications requiring only step-down functionality, LT8391AEUFD#PBF is compatible and offers additional design flexibility through dual topology support. The 28-QFN package differs from the TSOT-23-6 original, requiring PCB layout modifications.

Q: Why is LT3922IUFD#PBF not recommended as a substitute?

A: LT3922IUFD#PBF uses step-up (boost) topology, which is fundamentally different from the step-down (buck) topology of the MP24894GJ-Z. Boost converters are designed to increase voltage, while buck converters decrease voltage. Application requirements determine which topology is necessary, and topology substitution is not interchangeable.

Q: What packaging considerations apply when selecting substitutes?

A: The MP24894GJ-Z uses TSOT-23-6 (6-pin thin SOT-23) package. Substitutes use different packages: LM3401 series use 8-VSSOP, LT3743IFE uses 28-TSSOP-EP, LT8391AEUFD uses 28-QFN, and MIC3203YM uses 8-SOIC. Package changes require PCB redesign, including footprint modifications, trace routing adjustments, and thermal management evaluation. Verify package compatibility with existing PCB layouts before selection.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed in this reference maintain ROHS3 compliance and REACH unaffected status, consistent with the MP24894GJ-Z original specification.

Q: What is the MSL (Moisture Sensitivity Level) consideration for these parts?

A: The MP24894GJ-Z and most substitutes carry MSL 1 (Unlimited), indicating minimal moisture sensitivity and no special storage or handling requirements. LM3409QMY/NOPB carries MSL 3 (168 Hours), requiring controlled storage conditions and bake-out procedures before reflow soldering if exposed to moisture.