MP4059GS-Z Equivalent & Substitute Parts

Part Overview

The MP4059GS-Z is a single-stage PFC flyback control LED driver IC manufactured by Monolithic Power Systems Inc. This AC DC offline switcher integrates analog and PWM dimming capabilities for lighting applications. The device operates across a 6V to 27V supply range and is housed in an 8-SOIC surface mount package. The MP4059GS-Z maintains active product status with ROHS3 compliance and is suitable for offline LED lighting control circuits requiring integrated power factor correction and multiple topology support (flyback, buck, boost).

Equivalent and substitute parts are identified when alternative components satisfy the same functional requirements, application scope, and critical electrical parameters while maintaining compatibility with existing circuit designs.

Substiute Parts

MP4059GS-Z

Monolithic Power Systems Inc.In Stock: 35145MP4059GS-Z Datasheet

Current PartRFQ

TPS92075DDCR/NOPB

Texas InstrumentsIn Stock: 1562TPS92075DDCR/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP4059GS-Z is determined by the following critical parameters:

Functional Compatibility Criteria:

• Application category: LED driver for AC DC offline switching
• Device type: AC DC offline switcher
• Number of outputs: Single output configuration
• Operating temperature range: -40°C to 125°C (TJ)
• Compliance: ROHS3 and REACH status

Electrical Parameter Constraints:

• Supply voltage range overlap or compatibility
• Dimming capability (analog, PWM, or triac-based)
• Internal switch configuration
• Topology support (flyback, buck, boost)

Physical Compatibility:

• Surface mount packaging
• Pin count and footprint considerations

The TPS92075DDCR/NOPB from Texas Instruments qualifies as a substitute based on shared application scope (LED driver IC for AC DC offline switching), single output configuration, compatible operating temperature range, and equivalent compliance certifications. However, differences in supply voltage range, dimming method, package type, and internal switch architecture require circuit-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

MP4059GS-Z Selection Criteria:

• Applications requiring flyback topology support
• Supply voltage range 6V to 27V
• Analog or PWM dimming control requirement
• 8-SOIC package footprint compatibility
• Integrated internal switch functionality

TPS92075DDCR/NOPB Selection Criteria:

• Applications requiring triac dimming compatibility
• Supply voltage range 11V to 18V
• Step-down (buck) or step-up (boost) topology requirement
• SOT-23-6 thin package footprint compatibility
• External switch configuration acceptable

Both devices maintain active product status and ROHS3 compliance. The MP4059GS-Z offers broader supply voltage range and integrated switching capability. The TPS92075DDCR/NOPB provides superior moisture handling (MSL 1 vs. MSL 2) and triac dimming interface for specific lighting control applications.

Frequently Asked Questions (FAQ)

Q: Can the TPS92075DDCR/NOPB directly replace the MP4059GS-Z in existing designs?

A: Direct replacement is not recommended without circuit redesign. The TPS92075DDCR/NOPB operates within a narrower supply voltage range (11V to 18V versus 6V to 27V), lacks flyback topology support, uses a different package type (SOT-23-6 thin versus 8-SOIC), and implements triac dimming instead of analog/PWM dimming. Pin configuration and functional interface differ significantly.

Q: What are the key differences in dimming capability?

A: The MP4059GS-Z supports analog and PWM dimming methods, enabling continuous brightness control through voltage or pulse-width modulation. The TPS92075DDCR/NOPB implements triac dimming, which is compatible with standard AC wall dimmer switches but requires different circuit implementation and control methodology.

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

A: No. The MP4059GS-Z operates from 6V to 27V, while the TPS92075DDCR/NOPB operates from 11V to 18V. Applications requiring operation below 11V or above 18V cannot use the TPS92075DDCR/NOPB as a substitute.

Q: What packaging considerations apply to substitution?

A: The MP4059GS-Z uses 8-SOIC (0.154", 3.90mm width) surface mount packaging, while the TPS92075DDCR/NOPB uses SOT-23-6 thin packaging. These packages have different footprints, pin counts, and PCB layout requirements. Substitution requires complete circuit board redesign.

Q: Do both devices have equivalent compliance and reliability ratings?

A: Both devices are ROHS3 compliant and REACH unaffected. However, the TPS92075DDCR/NOPB has superior moisture sensitivity rating (MSL 1 unlimited versus MSL 2 one year), indicating better performance in humid storage and operational environments.

Q: What is the significance of internal switch configuration?

A: The MP4059GS-Z includes an integrated internal switch, simplifying circuit design by reducing external component count. The TPS92075DDCR/NOPB lacks an internal switch, requiring external switching elements and increasing circuit complexity and component count.