MP4032-2GS-Z LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP4032-2GS-Z is an AC DC offline switcher LED driver IC manufactured by Monolithic Power Systems Inc. This single-output power management IC integrates step-down (buck) and step-up (boost) topologies with internal switching capability and triac dimming support for lighting applications. The device operates across a 10.3V to 27V supply range and is housed in an 8-SOIC-7A surface mount package. As an active product with ROHS3 compliance and full inventory availability, equivalent substitute parts may be required for design flexibility, supply chain optimization, or specific application requirements.

Substiute Parts

MP4032-2GS-Z

Monolithic Power Systems Inc.In Stock: 35483MP4032-2GS-Z Datasheet

Current PartRFQ

CPC9909NE

IXYS Integrated Circuits DivisionIn Stock: 2168CPC9909NE Datasheet

MFR RecommendedRFQ

TPS92075D/NOPB

Texas InstrumentsIn Stock: 1183TPS92075D/NOPB Datasheet

MFR RecommendedRFQ

TPS92314DR/NOPB

Texas InstrumentsIn Stock: 25273TPS92314DR/NOPB Datasheet

MFR RecommendedRFQ

TPS92411PDBVT

Texas InstrumentsIn Stock: 20155TPS92411PDBVT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP4032-2GS-Z are evaluated based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• AC DC offline switcher topology
• Single output configuration
• Surface mount package compatibility (8-SOIC or equivalent footprint)
• Operating temperature range (-40°C minimum, 125°C maximum preferred)
• Dimming capability (triac or PWM)
• Supply voltage overlap within the 10.3V to 27V range
• ROHS3 compliance and active product status

Substitution Groups:

Group 1: Direct Topology Match (Buck/Boost with Triac Dimming) TPS92075D/NOPB matches the MP4032-2GS-Z most closely with identical topology (step-down/step-up), triac dimming, and lighting application focus. Supply voltage range (11V to 18V) overlaps the main part's operating window.

Group 2: Extended Voltage Range (Buck/Boost with PWM Dimming) CPC9909NE provides buck/boost topology with PWM dimming instead of triac. Supply voltage range (8V to 550V) exceeds the main part's requirements. Frequency specification (30kHz to 120kHz) is provided. Package is 8-SOIC-EP with exposed pad.

Group 3: Alternative Topology (Flyback) TPS92314DR/NOPB and TPS92411PDBVT employ flyback topology instead of buck/boost. TPS92314DR/NOPB operates at 13V to 35V with 60kHz to 150kHz frequency. TPS92411PDBVT supports multiple topologies (flyback, buck, boost) with 7.5V to 94V supply range and internal switching, but uses SOT-23-5 package instead of 8-SOIC.

Parameter Comparison

Engineering Selection Recommendations

TPS92075D/NOPB is the closest functional equivalent to MP4032-2GS-Z. Both devices employ identical buck/boost topology with triac dimming for lighting applications. The supply voltage range (11V to 18V) is fully contained within the MP4032-2GS-Z operating window (10.3V to 27V). Both maintain -40°C to 125°C operating temperature specifications and 8-SOIC package footprint. The primary difference is the absence of internal switching in TPS92075D/NOPB. Both parts are active, ROHS3 compliant, and carry MSL ratings suitable for production environments.

CPC9909NE provides buck/boost topology with PWM dimming instead of triac control. The extended supply voltage range (8V to 550V) accommodates the MP4032-2GS-Z requirements with significant margin. The 8-SOIC-EP package with exposed pad offers thermal advantages. Operating temperature is limited to -40°C to 85°C, which is narrower than the main part. This substitute is suitable for applications where PWM dimming is acceptable and thermal management is beneficial.

TPS92314DR/NOPB employs flyback topology rather than buck/boost, representing a different circuit architecture. Supply voltage range (13V to 35V) overlaps the main part's window. Frequency specification (60kHz to 150kHz) is defined. This part is suitable only for designs where flyback topology is compatible with the application requirements.

TPS92411PDBVT supports multiple topologies (flyback, buck, boost) with the widest supply voltage range (7.5V to 94V) and highest operating temperature (up to 150°C). Internal switching is integrated. However, the SOT-23-5 package differs from the 8-SOIC footprint, requiring PCB layout redesign. This part is applicable only when package change is acceptable.

All substitute parts maintain active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can TPS92075D/NOPB directly replace MP4032-2GS-Z without circuit modifications?

A: TPS92075D/NOPB shares identical topology (buck/boost), dimming method (triac), and package footprint (8-SOIC) with MP4032-2GS-Z. The primary difference is the absence of internal switching in TPS92075D/NOPB. Direct replacement feasibility depends on whether the MP4032-2GS-Z design relies on internal switching functionality. Circuit schematic review is required to confirm compatibility.

Q: What is the key difference between triac and PWM dimming in these LED driver ICs?

A: Triac dimming (MP4032-2GS-Z, TPS92075D/NOPB) interfaces with AC line-voltage triac dimmers commonly used in residential and commercial lighting installations. PWM dimming (CPC9909NE) uses pulse-width modulation for brightness control, typically in dedicated LED driver circuits. These are distinct control methods and are not interchangeable without application-level changes.

Q: Why does CPC9909NE have a much higher maximum supply voltage (550V) than MP4032-2GS-Z (27V)?

A: CPC9909NE is designed for a broader range of AC DC offline switcher applications, including high-voltage signage and industrial lighting. The 550V maximum rating reflects its capability to handle universal AC input (85V to 264V) with appropriate input filtering and rectification. MP4032-2GS-Z is optimized for lower voltage DC supply applications. Both parts operate correctly within their specified ranges.

Q: Is the SOT-23-5 package of TPS92411PDBVT compatible with the 8-SOIC footprint of MP4032-2GS-Z?

A: No. SOT-23-5 and 8-SOIC are physically different packages with different pin counts, spacing, and footprints. TPS92411PDBVT cannot be used as a direct drop-in replacement without complete PCB redesign. This part is suitable only for new designs where package selection is flexible.

Q: What does MSL (Moisture Sensitivity Level) mean for component substitution?

A: MSL indicates the maximum time a component can be exposed to ambient conditions (typically 30°C, 60% relative humidity) before soldering. MP4032-2GS-Z has MSL 2 (1 Year), while all substitute parts have MSL 1 (Unlimited). Lower MSL values provide greater handling flexibility and longer shelf life. This difference does not prevent substitution but indicates that substitute parts have less stringent moisture control requirements.

Q: Can I use TPS92314DR/NOPB in a design originally specified for MP4032-2GS-Z?

A: TPS92314DR/NOPB uses flyback topology instead of buck/boost, representing a fundamentally different circuit architecture. Substitution is possible only if the application requirements are compatible with flyback operation. The supply voltage range (13V to 35V) overlaps the MP4032-2GS-Z window. Circuit redesign and validation are required.

Q: Which substitute part has the best thermal performance?

A: CPC9909NE features an 8-SOIC-EP package with exposed pad, which provides enhanced thermal dissipation compared to standard 8-SOIC packages. TPS92411PDBVT supports the highest operating temperature (up to 150°C junction temperature), indicating robust thermal design. Selection depends on specific thermal requirements of the application.