MP4088GS-Z LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP4088GS-Z is an AC DC offline switcher LED driver IC manufactured by Monolithic Power Systems Inc., designed for lighting applications with Triac dimming capability. This single-output device operates in the 4.5V to 5V supply range and integrates an internal switch for buck and boost topology configurations. The part is currently active in production with full RoHS3 compliance and MSL 2 rating.

Substitute parts are identified when equivalent functional performance can be achieved within the allowed electrical and mechanical parameters for offline LED driver applications, particularly where supply voltage ranges, dimming methods, package compatibility, and operating temperature specifications align with system requirements.

Substiute Parts

MP4088GS-Z

Monolithic Power Systems Inc.In Stock: 4748MP4088GS-Z Datasheet

Current PartRFQ

AL9910ASP-13

Diodes IncorporatedIn Stock: 1438AL9910ASP-13 Datasheet

MFR RecommendedRFQ

CPC9909N

IXYS Integrated Circuits DivisionIn Stock: 1971CPC9909N Datasheet

MFR RecommendedRFQ

LM3447MTX/NOPB

Texas InstrumentsIn Stock: 60496LM3447MTX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP4088GS-Z is determined by the following critical parameters:

Primary Substitution Criteria:

• Device category: Power Management (PMIC) - LED Driver IC
• Application class: AC DC Offline Switcher for lighting
• Number of outputs: Single output configuration
• Dimming capability: Triac or equivalent dimming method
• Package form factor: 8-pin SOIC or compatible surface mount package
• Compliance: RoHS3 compliant, EAR99 classification
• Product status: Active manufacturing status

Secondary Compatibility Factors:

• Supply voltage range overlap or compatibility with 4.5V to 5V operation
• Operating temperature range: -40°C minimum to 85°C or higher maximum
• Internal switch integration for buck/boost topology support
• Moisture sensitivity level acceptable for production environments

The identified substitute parts (AL9910ASP-13, CPC9909N, LM3447MTX/NOPB) meet the core functional requirements as AC DC offline LED driver ICs with Triac or PWM dimming in surface mount packages. However, each substitute exhibits distinct electrical parameter variations that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

AL9910ASP-13 (Diodes Incorporated)

This substitute operates across a significantly wider supply voltage range (20V to 500V) compared to the MP4088GS-Z (4.5V to 5V). The AL9910ASP-13 lacks an internal switch and supports both analog and PWM dimming methods. The 8-SOIC package with exposed pad provides thermal management advantages. Operating temperature maximum of 105°C (TA) is lower than the MP4088GS-Z. This part is suitable for applications requiring higher input voltage tolerance and flexible dimming control, with MSL 1 rating providing superior moisture resistance.

CPC9909N (IXYS Integrated Circuits Division)

This substitute operates across a wide supply voltage range (8V to 550V) without internal switch integration. PWM dimming is supported exclusively; Triac dimming is not available. The 8-SOIC package matches the MP4088GS-Z footprint. Operating temperature maximum of 85°C (TA) is the most restrictive among the substitutes. This part is applicable to signage and lighting applications where PWM dimming is acceptable and operating temperatures remain below 85°C. MSL 1 rating ensures unlimited moisture sensitivity protection.

LM3447MTX/NOPB (Texas Instruments)

This substitute employs a Flyback topology rather than buck/boost configuration and operates across 7.5V to 17.5V supply range. The 14-TSSOP package differs from the MP4088GS-Z 8-SOIC footprint, requiring PCB layout modifications. Triac dimming capability aligns with the main part. Operating temperature range matches the MP4088GS-Z (-40°C to 125°C TJ). This part is suitable for applications where Triac dimming is required and the higher pin-count package can be accommodated. MSL 1 rating provides unlimited moisture sensitivity protection.

All substitute parts maintain active product status, RoHS3 compliance, and EAR99 classification consistent with the MP4088GS-Z.

Frequently Asked Questions (FAQ)

Q: Can AL9910ASP-13 directly replace MP4088GS-Z in a 4.5V to 5V supply application?

A: AL9910ASP-13 operates with a minimum supply voltage of 20V, which exceeds the MP4088GS-Z supply range of 4.5V to 5V. Direct substitution in low-voltage applications is not feasible without circuit redesign to accommodate the higher minimum voltage requirement.

Q: What is the primary difference between Triac and PWM dimming in these LED driver ICs?

A: Triac dimming (MP4088GS-Z, LM3447MTX/NOPB) interfaces with AC line-voltage dimmer switches commonly used in residential and commercial lighting. PWM dimming (AL9910ASP-13, CPC9909N) uses pulse-width modulation for brightness control via digital or analog signals. The dimming method must match the system architecture and control interface.

Q: Why does LM3447MTX/NOPB use a 14-TSSOP package instead of 8-SOIC?

A: The 14-TSSOP package accommodates additional functional integration in the Flyback topology implementation. Package selection reflects the internal circuit complexity and thermal management requirements of the specific device architecture. PCB layout modifications are required for package substitution.

Q: Are all substitute parts suitable for the same operating temperature range as MP4088GS-Z?

A: No. The MP4088GS-Z and LM3447MTX/NOPB both operate to 125°C (TJ). AL9910ASP-13 operates to 105°C (TA), and CPC9909N operates to 85°C (TA). Application temperature requirements must be verified against each substitute's maximum operating temperature specification.

Q: What does MSL 2 rating on MP4088GS-Z mean compared to MSL 1 on substitutes?

A: MSL 2 indicates 1-year moisture sensitivity protection from the date of manufacture. MSL 1 provides unlimited moisture sensitivity protection. Substitutes with MSL 1 rating offer superior protection against moisture absorption during storage and handling, reducing risk of solder reflow defects.

Q: Can CPC9909N replace MP4088GS-Z if Triac dimming is not required?

A: CPC9909N is functionally compatible for applications where PWM dimming is acceptable and operating temperatures remain below 85°C. The 8-SOIC package footprint matches the MP4088GS-Z, simplifying PCB integration. Circuit design must accommodate PWM dimming control instead of Triac interface.

Q: Do all substitute parts have the same internal switch configuration as MP4088GS-Z?

A: No. MP4088GS-Z includes an internal switch. AL9910ASP-13, CPC9909N, and LM3447MTX/NOPB do not include internal switches. External switch components may be required in substitute designs, affecting circuit complexity and PCB area.