MP4056GSE-Z Equivalent & Substitute Parts

Part Overview

The MP4056GSE-Z is an AC DC offline switcher LED driver IC manufactured by Monolithic Power Systems Inc. This device integrates Triac dimming capability for commercial and industrial lighting applications, supporting Flyback, Step-Down (Buck), and Step-Up (Boost) topologies with a single output channel. The part is currently in active production status with 10,100 units in stock. Substitute parts are identified when design requirements necessitate alternative sourcing due to supply constraints, end-of-life considerations, or specific application compatibility needs.

Substiute Parts

MP4056GSE-Z

Monolithic Power Systems Inc.In Stock: 10143MP4056GSE-Z Datasheet

Current PartRFQ

RT8415GSP

Richtek USA Inc.In Stock: 6883RT8415GSP Datasheet

SimilarRFQ

UCC28811D

Texas InstrumentsIn Stock: 3480UCC28811D Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP4056GSE-Z is determined by the following critical parameters:

Primary Substitution Criteria:

• Product category: Power Management (PMIC) - LED Driver IC
• Device type: AC DC Offline Switcher
• Topology support: Flyback, Step-Down (Buck), Step-Up (Boost)
• Number of outputs: Single channel (1 output)
• Dimming capability: Triac dimming support
• Supply voltage compatibility: Overlap within operating range
• Package compatibility: Surface mount configuration
• RoHS compliance: ROHS3 Compliant

Secondary Compatibility Factors:

• Operating temperature range
• Internal switch presence
• Moisture sensitivity level
• Product status (Active preferred for new designs)

The identified substitute parts (RT8415GSP and UCC28811D) share the core functional architecture of AC DC offline switching with single-output LED driver capability. However, each substitute exhibits specific parameter variations that define its application scope relative to the main part.

Parameter Comparison

Engineering Selection Recommendations

MP4056GSE-Z (Primary Part): Select this part for new designs requiring Triac dimming in the 11V to 27V supply range. Active product status ensures long-term availability and manufacturer support. The integrated internal switch and 14-SOIC package provide a complete solution for commercial and industrial lighting applications. Operating temperature range extends to 125°C (junction), supporting high-reliability environments.

UCC28811D (Preferred Substitute): This Texas Instruments device is the recommended substitute when MP4056GSE-Z availability is constrained. It maintains active product status, Triac dimming capability, and supports the full Flyback/Buck/Boost topology set. The 8-SOIC package requires PCB layout modification. Maximum supply voltage is limited to 18V, restricting use to applications within this range. Operating temperature reaches 105°C (ambient), and MSL rating of 1 provides superior moisture protection for extended storage.

RT8415GSP (Secondary Substitute): This Richtek part is available only as a secondary option due to obsolete product status. While it supports Buck/Boost topologies and operates across a wider supply range (4.5V to 36V), it lacks Flyback topology support and Triac dimming specification. The 8-SOIC-EP package differs from the main part. Operating temperature maximum of 85°C (ambient) and MSL rating of 3 (168 hours) indicate reduced suitability for demanding applications. Use only when UCC28811D is unavailable and application requirements permit topology and dimming limitations.

Frequently Asked Questions (FAQ)

Q: Can RT8415GSP directly replace MP4056GSE-Z in existing designs?

A: No. RT8415GSP lacks Flyback topology support and does not specify Triac dimming capability. Additionally, it is obsolete. PCB layout changes are required due to package differences (8-SOIC-EP versus 14-SOIC). Use only if application requirements permit Buck/Boost-only operation without Triac dimming.

Q: What are the package compatibility considerations for UCC28811D substitution?

A: UCC28811D uses an 8-SOIC package compared to MP4056GSE-Z's 14-SOIC package. Both maintain 0.154" (3.90mm) width, but pin count and layout differ significantly. PCB redesign is required. Verify footprint compatibility before implementation.

Q: Does UCC28811D support the full 11V to 27V supply range of MP4056GSE-Z?

A: No. UCC28811D maximum supply voltage is 18V. Applications requiring operation above 18V cannot use this substitute. Verify your design's supply voltage range before selection.

Q: Why is RT8415GSP listed as obsolete?

A: Product status is provided as specified in manufacturer data. Obsolete status indicates the manufacturer has discontinued active production and support. New designs should avoid this part; use only for legacy system maintenance when alternatives are unavailable.

Q: Are all three parts RoHS3 compliant?

A: Yes. MP4056GSE-Z, RT8415GSP, and UCC28811D are all ROHS3 Compliant, meeting environmental regulatory requirements for commercial and industrial applications.

Q: What is the significance of Moisture Sensitivity Level (MSL) differences?

A: MSL ratings indicate maximum storage duration at specified humidity before moisture absorption affects reliability. MP4056GSE-Z (MSL 2, 1 Year) and RT8415GSP (MSL 3, 168 Hours) require controlled storage. UCC28811D (MSL 1, Unlimited) offers superior moisture tolerance for extended shelf storage without special handling.

Q: Can I use RT8415GSP if my application does not require Triac dimming?

A: RT8415GSP does not specify Triac dimming capability in its parameters. If your application requires Triac dimming, this part is unsuitable. If dimming is not required, verify that Buck/Boost-only topology meets your design needs and that the 4.5V to 36V supply range is compatible.

Q: Which substitute is recommended for new product development?

A: UCC28811D is the recommended substitute for new designs. It maintains active product status, supports Triac dimming and full topology options, and provides superior moisture protection (MSL 1). Verify that the 18V maximum supply voltage and 8-SOIC package are compatible with your application requirements.