MP3385GR-P LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP3385GR-P is a 4-output LED driver IC manufactured by Monolithic Power Systems Inc., designed for backlight applications with step-up (boost) topology. This part operates with a 4.5V to 33V supply range and delivers 300mA per channel output current. The MP3385GR-P is classified as "Not For New Designs," indicating it has reached end-of-life status. Alternative parts are necessary for new product development and long-term supply chain continuity.

Substiute Parts

MP3385GR-P

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

Current PartRFQ

MP3385AGR-P

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

DirectRFQ

MP3385AGR-Z

Monolithic Power SystemsIn Stock: 1475MP3385AGR-Z Datasheet

Parametric EquivalentRFQ

MP3385GR-Z

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

Parametric EquivalentRFQ

BD6066GU-E2

ROHM SemiconductorIn Stock: 1774BD6066GU-E2 Datasheet

MFR RecommendedRFQ

ISL97687IRTZ-T

Renesas Electronics CorporationIn Stock: 810ISL97687IRTZ-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP3385GR-P are categorized based on electrical and mechanical parameter alignment:

Direct Manufacturer Substitutes (MPS MP3385 Series): MP3385AGR-P, MP3385AGR-Z, and MP3385GR-Z are variants within the same MP3385 base product family. These parts share identical electrical specifications: 4-output configuration, 4.5V to 33V supply range, 300mA per channel, 80V output voltage, 100kHz to 900kHz frequency range, and Analog/I2C/PWM dimming. All use the same 20-VFQFN package. The primary differentiator is product status: MP3385AGR-P and MP3385AGR-Z are Active, while MP3385GR-Z is Not For New Designs.

Parametric Equivalents (Cross-Manufacturer): BD6066GU-E2 (ROHM Semiconductor) and ISL97687IRTZ-T (Renesas Electronics) provide functional equivalence for 4-output LED driver applications with step-up topology. However, these parts have restricted parameter ranges: BD6066GU-E2 operates at 2.7V to 22V supply (narrower than MP3385GR-P) with 30mA per channel and 40.5V output; ISL97687IRTZ-T requires 9V to 32V supply with 160mA per channel. Both use different packages and have different operating temperature ranges.

Key Parameters Determining Substitution:

• Number of outputs (4 required)
• Topology (Step-Up/Boost required)
• Supply voltage range compatibility
• Output current per channel (300mA preferred)
• Package type and form factor
• Dimming control method
• Operating temperature range
• Product status and availability

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Electrical and Mechanical Specifications):

MP3385AGR-P and MP3385AGR-Z are the preferred substitutes for new designs. Both are Active products with identical electrical parameters to the MP3385GR-P: 4-output configuration, 4.5V to 33V supply range, 300mA per channel, 80V output voltage, and 20-VFQFN package. MP3385AGR-Z offers higher inventory availability (1410 pcs) compared to MP3385AGR-P (1011 pcs). Both support Analog, I2C, and PWM dimming control methods and operate across the full -40°C to 125°C temperature range.

For Constrained Supply Scenarios:

MP3385GR-Z remains electrically identical to MP3385GR-P but carries "Not For New Designs" status. This part is suitable only for legacy product support or existing design maintenance where supply continuity is critical. Inventory availability is 2020 pcs.

For Cross-Manufacturer Alternatives:

BD6066GU-E2 (ROHM) and ISL97687IRTZ-T (Renesas) are functional alternatives only when design constraints permit parameter deviations. BD6066GU-E2 has reduced supply voltage range (2.7V to 22V maximum, below the MP3385GR-P's 33V maximum) and significantly lower output current (30mA per channel versus 300mA). ISL97687IRTZ-T requires minimum 9V supply input and delivers 160mA per channel. Both use different package types, requiring PCB layout modifications. ISL97687IRTZ-T is Active; BD6066GU-E2 is Not For New Designs.

Compliance and Certification:

All listed parts are ROHS3 compliant and REACH unaffected, meeting standard environmental and regulatory requirements for electronic components.

Frequently Asked Questions (FAQ)

Q: Can MP3385AGR-P and MP3385AGR-Z be used interchangeably with MP3385GR-P?

A: Yes. Both MP3385AGR-P and MP3385AGR-Z share identical electrical specifications with MP3385GR-P: 4-output configuration, 4.5V to 33V supply range, 300mA per channel, 80V output voltage, 100kHz to 900kHz frequency range, and Analog/I2C/PWM dimming. Both use the same 20-VFQFN package. The primary difference is product status: MP3385AGR variants are Active, while MP3385GR-P is Not For New Designs.

Q: What is the difference between MP3385AGR-P and MP3385AGR-Z?

A: Both parts are electrically and mechanically identical. The suffix difference (-P versus -Z) indicates different tape and reel packaging configurations or manufacturing date codes. Electrical performance, package type, and pin configuration are identical. MP3385AGR-Z has higher current inventory (1410 pcs versus 1011 pcs).

Q: Can BD6066GU-E2 replace MP3385GR-P in existing designs?

A: BD6066GU-E2 is not a direct replacement. While both are 4-output LED driver ICs with step-up topology, BD6066GU-E2 has significant parameter restrictions: supply voltage maximum of 22V (versus 33V for MP3385GR-P), output current of 30mA per channel (versus 300mA), and output voltage of 40.5V (versus 80V). BD6066GU-E2 uses a different package (17-VFBGA CSPBGA versus 20-VFQFN), requiring PCB redesign. Use only if design specifications permit these deviations.

Q: Is ISL97687IRTZ-T compatible with MP3385GR-P designs?

A: ISL97687IRTZ-T provides functional equivalence for 4-output LED driver applications but has parameter differences. It requires minimum 9V supply input (versus 4.5V for MP3385GR-P) and delivers 160mA per channel (versus 300mA). The package is 28-WFQFN (5x5), larger than the 20-VFQFN (4x4) used by MP3385GR-P, requiring PCB layout modifications. Compatibility depends on whether your design can accommodate these electrical and physical constraints.

Q: Why is MP3385GR-P marked "Not For New Designs"?

A: This status indicates the part has reached end-of-life and is no longer recommended for new product development. Existing inventory may be available for legacy product support, but new designs should use Active alternatives such as MP3385AGR-P or MP3385AGR-Z.

Q: What are the key parameters that determine if a substitute is compatible?

A: Substitution compatibility is determined by: number of outputs (4 required), topology (step-up/boost required), supply voltage range (must encompass your application range), output current per channel (300mA preferred for full compatibility), package type and form factor (20-VFQFN preferred for direct PCB compatibility), dimming control method (Analog/I2C/PWM preferred), and operating temperature range (-40°C to 125°C preferred).

Q: Are all listed parts RoHS compliant?

A: Yes. All parts listed—MP3385GR-P, MP3385AGR-P, MP3385AGR-Z, MP3385GR-Z, BD6066GU-E2, and ISL97687IRTZ-T—are ROHS3 compliant and REACH unaffected.