MP4059GS LED Driver IC - Equivalent & Substitute Parts

Part Overview

The MP4059GS is an active LED driver IC manufactured by Monolithic Power Systems Inc., designed for offline AC/DC switching applications. This single-output device supports multiple topologies including Flyback, Step-Down (Buck), and Step-Up (Boost) configurations with analog and PWM dimming capabilities. The part is currently in active production status with 655 units in stock. Substitute parts are identified when equivalent functional specifications, supply voltage ranges, and package compatibility allow direct replacement in lighting applications while maintaining circuit performance and compliance requirements.

Substiute Parts

MP4059GS

Monolithic Power Systems Inc.In Stock: 723MP4059GS Datasheet

Current PartRFQ

TPS92411DBVR

Texas InstrumentsIn Stock: 203382TPS92411DBVR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP4059GS is determined by the following critical parameters:

• Device Type: AC DC Offline Switcher with internal switching capability
• Topology Support: Flyback, Step-Down (Buck), and Step-Up (Boost) configurations
• Number of Outputs: Single output (1)
• Supply Voltage Range: Minimum 6V to maximum 27V input capability
• Dimming Capability: Analog and/or PWM dimming support
• Application Domain: Lighting applications
• Mounting Technology: Surface mount only
• Regulatory Compliance: ROHS3 and REACH compliance required

The TPS92411DBVR qualifies as a substitute based on matching device type, topology support, single output configuration, internal switch presence, and lighting application focus. Package differences (8-SOIC versus SOT-23-5) and supply voltage range variations (7.5V–100V versus 6V–27V) are noted but do not preclude substitution when circuit design accommodates these differences.

Parameter Comparison

Engineering Selection Recommendations

Both the MP4059GS and TPS92411DBVR maintain active product status with full ROHS3 and REACH compliance, ensuring regulatory alignment for current and future applications. The TPS92411DBVR offers an extended operating temperature range (-40°C to 150°C versus -40°C to 125°C) and broader supply voltage tolerance (7.5V–100V versus 6V–27V), providing greater design flexibility in high-temperature or wide-input-voltage environments. Package differences require PCB layout modification; the SOT-23-5 package is smaller than the 8-SOIC, affecting board space and thermal management considerations. Selection between these parts depends on circuit voltage requirements, thermal constraints, and available PCB real estate.

Frequently Asked Questions (FAQ)

Q: Can the TPS92411DBVR directly replace the MP4059GS without circuit modification?

A: Functional substitution is possible due to matching device type, topology support, and single-output configuration. However, package differences (8-SOIC versus SOT-23-5) require PCB layout changes. Supply voltage range differences must be evaluated; if the application operates below 7.5V, the TPS92411DBVR is not suitable.

Q: What are the key differences in supply voltage specifications?

A: The MP4059GS accepts 6V–27V input, while the TPS92411DBVR requires 7.5V–100V. Applications using supply voltages between 6V and 7.5V cannot use the TPS92411DBVR. Conversely, applications exceeding 27V input can only use the TPS92411DBVR.

Q: How do package differences affect substitution?

A: The MP4059GS uses an 8-SOIC package (0.154" width, 3.90mm), while the TPS92411DBVR uses SOT-23-5 (SC-74A). These packages have different pin counts, footprints, and thermal characteristics. PCB redesign is required for physical substitution.

Q: Are both parts suitable for lighting applications?

A: Yes. Both devices are specified for lighting applications and support the required topologies (Flyback, Buck, Boost) with internal switching capability.

Q: What compliance certifications apply to both parts?

A: Both the MP4059GS and TPS92411DBVR are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: Does the TPS92411DBVR support dimming?

A: The provided specifications do not include dimming capability details for the TPS92411DBVR. The MP4059GS explicitly supports analog and PWM dimming. Dimming compatibility must be confirmed through detailed datasheet review before substitution.