MP3385AGR-P LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP3385AGR-P is a 4-output LED driver controller IC manufactured by Monolithic Power Systems Inc., designed for backlight applications. This device operates as a step-up (boost) DC-DC controller with integrated PWM dimming capability, supporting analog, I2C, and PWM control methods. The part is currently in active production status with 1011 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging or thermal specifications are required for specific design constraints, or when design revisions call for components with different product lifecycle status.

Substiute Parts

MP3385AGR-P

Monolithic Power Systems Inc.In Stock: 1113MP3385AGR-P Datasheet

Current PartRFQ

MP3385AGR-Z

Monolithic Power SystemsIn Stock: 1475MP3385AGR-Z Datasheet

Parametric EquivalentRFQ

MP3385GR-P

Monolithic Power Systems Inc.In Stock: 1109MP3385GR-P Datasheet

Parametric EquivalentRFQ

MP3385GR-Z

Monolithic Power Systems Inc.In Stock: 2113MP3385GR-Z Datasheet

Parametric EquivalentRFQ

ISL97687IBZ

Renesas Electronics CorporationIn Stock: 3782ISL97687IBZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP3385AGR-P is determined by the following critical parameters:

Primary Substitution Criteria (Parametric Equivalents):

• DC-DC controller topology (Step-Up/Boost)
• 4-output configuration
• Supply voltage range: 4.5V to 33V minimum
• Output voltage capability: 80V
• Current per channel: 300mA
• Dimming control: Analog, I2C, PWM support
• Package: 20-QFN (4x4mm) form factor
• Operating temperature range: -40°C to 125°C
• RoHS3 compliance
• MSL 1 rating

Secondary Substitution Criteria (Manufacturer Recommended):

• Functional equivalence as LED driver controller
• Step-Up (Boost) topology
• 4-output configuration
• Backlight application suitability
• RoHS3 compliance

Parts are grouped into two categories: parametric equivalents (MP3385 series variants) maintain identical electrical and mechanical specifications, while manufacturer-recommended alternatives (ISL97687IBZ) provide functional equivalence with acceptable parameter variations for specific design scenarios.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Designs: MP3385AGR-P and MP3385AGR-Z are recommended as primary selections. Both maintain active product status, identical electrical specifications, and MSL 1 moisture sensitivity rating. MP3385AGR-Z offers higher inventory availability (1410 units) compared to MP3385AGR-P (1011 units). Both are ROHS3 compliant and suitable for new designs.

For Legacy or Maintenance Designs: MP3385GR-P and MP3385GR-Z are available as substitutes but carry "Not For New Designs" status. These parts maintain full parametric equivalence to the active variants and are suitable only for sustaining production or design revisions of existing products. MP3385GR-Z provides significantly higher inventory (2020 units).

For Alternative Topology Consideration: ISL97687IBZ (Renesas Electronics) is a manufacturer-recommended alternative for designs where package size constraints or supply chain diversification is required. This part differs in the following aspects: 28-SOIC package (larger footprint than 20-QFN), reduced current per channel (160mA vs. 300mA), minimum supply voltage of 9V (vs. 4.5V), lower maximum operating temperature (105°C vs. 125°C), MSL 3 rating (vs. MSL 1), and PWM dimming without I2C control. ISL97687IBZ is suitable only for designs where these parameter variations are acceptable.

Frequently Asked Questions (FAQ)

Q: Can MP3385GR-P or MP3385GR-Z be used in new designs? A: No. Both parts carry "Not For New Designs" product status. They are suitable only for sustaining production of existing designs or maintenance applications. For new designs, use MP3385AGR-P or MP3385AGR-Z.

Q: What is the primary difference between MP3385AGR-P and MP3385AGR-Z? A: Both parts are parametrically identical. The difference is in packaging designation and inventory availability. MP3385AGR-Z has higher stock (1410 units vs. 1011 units). Selection between these two should be based on supply chain availability and internal part numbering conventions.

Q: Can ISL97687IBZ replace MP3385AGR-P in all applications? A: No. ISL97687IBZ has reduced current per channel (160mA vs. 300mA), requires minimum 9V supply (vs. 4.5V), uses a larger 28-SOIC package instead of 20-QFN, and lacks I2C dimming control. Substitution is valid only for designs where these parameter differences are acceptable.

Q: What does MSL 1 rating mean for the MP3385 series? A: MSL 1 indicates unlimited moisture sensitivity level, meaning the component has no moisture absorption restrictions and does not require special storage or handling conditions prior to soldering.

Q: Why does ISL97687IBZ have MSL 3 rating while MP3385 variants have MSL 1? A: MSL 3 rating requires controlled storage conditions (168 hours maximum at specified humidity and temperature) before soldering. This reflects different manufacturing processes and material compositions between Renesas and Monolithic Power Systems components.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed parts (MP3385AGR-P, MP3385AGR-Z, MP3385GR-P, MP3385GR-Z, and ISL97687IBZ) are ROHS3 compliant.

Q: What is the impact of package size difference between MP3385 (20-QFN) and ISL97687IBZ (28-SOIC)? A: The 20-QFN package is significantly smaller (4x4mm) than the 28-SOIC package (7.50mm width). PCB layout redesign is required if substituting ISL97687IBZ for MP3385 variants. Thermal performance may also differ due to package geometry differences.

Q: Can I mix MP3385 variants in the same production batch? A: Yes, provided the design accommodates the parametric equivalence. MP3385AGR-P, MP3385AGR-Z, MP3385GR-P, and MP3385GR-Z are electrically and mechanically interchangeable. However, product status should be considered: active variants (AGR series) are preferred for new production.