MP4021GS-A LED Driver IC - Equivalent & Substitute Parts

Part Overview

The MP4021GS-A is an AC DC offline switcher LED driver IC manufactured by Monolithic Power Systems Inc., designed for lighting applications. This single-output device operates with a supply voltage range of 10.3V to 23V and utilizes flyback topology without internal switching capability. The part is currently active in production with full RoHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent functional performance can be achieved within the specified electrical and mechanical parameters while maintaining compliance certifications.

Substiute Parts

MP4021GS-A

Monolithic Power Systems Inc.In Stock: 1158MP4021GS-A Datasheet

Current PartRFQ

TPS92411DBVT

Texas InstrumentsIn Stock: 2467TPS92411DBVT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP4021GS-A is determined by the following criteria:

• Functional Category: AC DC offline switcher topology for LED driver applications
• Number of Outputs: Single output configuration
• Supply Voltage Compatibility: Substitute must operate within or encompass the 10.3V to 23V supply range
• Mounting Type: Surface mount technology
• Compliance Requirements: RoHS3 compliance and REACH unaffected status
• Product Status: Active production status

The TPS92411DBVT qualifies as a substitute based on these parameters. While it offers extended supply voltage range (7.5V to 100V) and additional topology options (Step-Down and Step-Up), it maintains single-output configuration, surface mount technology, active product status, and full compliance certifications. The extended voltage range provides broader application flexibility while remaining compatible with the 10.3V to 23V operating window of the MP4021GS-A.

Parameter Comparison

Engineering Selection Recommendations

Both the MP4021GS-A and TPS92411DBVT maintain active production status with full RoHS3 compliance and REACH unaffected certification. Selection between these parts should be based on the following factors:

MP4021GS-A is appropriate when the 8-SOIC package footprint is required and supply voltage operation is constrained to the 10.3V to 23V range with flyback topology exclusively.

TPS92411DBVT is appropriate when the SOT-23-5 package footprint is acceptable, extended supply voltage range (7.5V to 100V) provides design flexibility, or multi-topology capability (flyback, buck, boost) is beneficial. The TPS92411DBVT also offers improved moisture sensitivity rating (MSL 1 vs. MSL 2) and extended operating temperature range (-40°C to 150°C vs. -40°C to 125°C).

Package footprint change from 8-SOIC to SOT-23-5 requires PCB layout modification. Internal switch presence in the TPS92411DBVT (versus no internal switch in MP4021GS-A) may affect external component requirements and circuit topology implementation.

Frequently Asked Questions (FAQ)

Q: Can the TPS92411DBVT directly replace the MP4021GS-A without PCB modification?

A: No. The TPS92411DBVT uses SOT-23-5 package while the MP4021GS-A uses 8-SOIC package. PCB footprint redesign is required. Pin configuration and functional mapping must be verified against respective datasheets.

Q: What is the primary difference in topology between these parts?

A: The MP4021GS-A operates exclusively in flyback topology without internal switching capability. The TPS92411DBVT supports flyback, step-down (buck), and step-up (boost) topologies with internal switching capability, providing greater circuit design flexibility.

Q: Are both parts suitable for the same supply voltage range?

A: The MP4021GS-A operates from 10.3V to 23V. The TPS92411DBVT operates from 7.5V to 100V. The TPS92411DBVT encompasses the MP4021GS-A voltage range and extends it significantly, allowing operation at lower and higher supply voltages.

Q: What compliance certifications apply to both parts?

A: Both parts are RoHS3 compliant and REACH unaffected. The TPS92411DBVT offers superior moisture sensitivity rating (MSL 1 with unlimited shelf life versus MSL 2 with 1-year shelf life for MP4021GS-A).

Q: Which part has better thermal performance?

A: The TPS92411DBVT operates to 150°C junction temperature versus 125°C for the MP4021GS-A, providing 25°C additional thermal margin in high-temperature applications.