MP4050AGS LED Driver IC - Equivalent & Substitute Parts

Part Overview

The MP4050AGS is an AC DC offline switcher LED driver IC manufactured by Monolithic Power Systems, designed for general purpose and lighting applications. This single-output device operates with a 4.1V to 5V supply range and features an integrated switch with step-down (buck) topology at 22kHz switching frequency. The part is actively produced, RoHS3 compliant, and rated for automotive-grade operation across -40°C to 125°C junction temperature. Alternative components may be required due to inventory constraints, design optimization, or application-specific performance requirements.

Substiute Parts

MP4050AGS

Monolithic Power SystemsIn Stock: 872MP4050AGS Datasheet

Current PartRFQ

UCC25710DW

Texas InstrumentsIn Stock: 952UCC25710DW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP4050AGS is constrained by the following critical parameters:

• Single Output Configuration: Both main and substitute parts must provide exactly one output channel for LED driver functionality
• AC DC Offline Switcher Type: The substitute must maintain offline switcher architecture for the same application class
• Operating Temperature Range: Minimum -40°C to 125°C compatibility required
• Surface Mount Packaging: Both parts use surface mount technology
• Active Product Status: Only actively produced components qualify as substitutes
• RoHS3 Compliance: Environmental and regulatory compliance must be maintained

The UCC25710DW qualifies as a substitute based on matching output count, offline switcher type, temperature range, surface mount configuration, active status, and RoHS3 compliance. However, critical differences exist in supply voltage range, package form factor, and internal architecture that must be evaluated for specific circuit implementations.

Parameter Comparison

Engineering Selection Recommendations

Both the MP4050AGS and UCC25710DW maintain active product status and RoHS3 compliance, qualifying them for equivalent applications in regulated environments. Selection between these components must account for the following engineering constraints:

The MP4050AGS operates within a 4.1V to 5V supply window with integrated switching capability in an 8-SOIC package footprint. The UCC25710DW requires a higher supply voltage range of 11V to 18V, operates without internal switching, and occupies a larger 20-SOIC package. These differences indicate fundamentally different circuit topologies and power delivery requirements. Direct substitution is only valid when the target application's supply voltage, switching architecture, and PCB layout accommodate the UCC25710DW's specifications.

Both devices support the full -40°C to 125°C temperature range required for automotive-grade applications. Compliance certifications remain equivalent across both components.

Frequently Asked Questions (FAQ)

Q: Can the UCC25710DW directly replace the MP4050AGS in existing designs?

A: Direct replacement requires verification of three critical factors: (1) the application supply voltage must fall within the 11V to 18V range of the UCC25710DW rather than the 4.1V to 5V range of the MP4050AGS, (2) the circuit topology must accommodate the absence of an internal switch in the UCC25710DW, and (3) the PCB layout must support the larger 20-SOIC package footprint versus the 8-SOIC footprint of the MP4050AGS.

Q: What are the key differences between these two LED driver ICs?

A: The MP4050AGS integrates a switching element and operates at lower supply voltages (4.1V–5V), while the UCC25710DW requires external switching and operates at higher supply voltages (11V–18V). The UCC25710DW also provides PWM dimming capability. These architectural differences make them suitable for different power delivery scenarios.

Q: Are both parts suitable for automotive applications?

A: The MP4050AGS carries an automotive grade designation. The UCC25710DW is actively produced and RoHS3 compliant but does not specify an automotive grade in the provided data. Automotive qualification requirements should be verified with the manufacturer before selection.

Q: What packaging considerations apply to substitution?

A: The MP4050AGS uses an 8-SOIC package (0.154" width), while the UCC25710DW uses a 20-SOIC package (0.295" width). The larger package of the UCC25710DW requires additional PCB real estate and may necessitate circuit board redesign. Pin configuration differences also require schematic and layout verification.

Q: Do both parts meet the same environmental compliance standards?

A: Both the MP4050AGS and UCC25710DW are RoHS3 compliant and REACH unaffected. Both carry the same ECCN and HTSUS classifications. Environmental compliance is equivalent between the two components.