MP3394ES-LF-Z Equivalent & Substitute Parts

Part Overview

The MP3394ES-LF-Z is a LED Driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management (PMIC) component. This device functions as a 4-output DC DC controller with step-up (boost) topology, delivering 200mA per channel output current with PWM dimming capability at 540kHz switching frequency. The part is designated as "Not For New Designs," making identification of functionally equivalent alternatives essential for ongoing production and maintenance applications.

Substiute Parts

MP3394ES-LF-Z

Monolithic Power Systems Inc.In Stock: 15954MP3394ES-LF-Z Datasheet

Current PartRFQ

ISL97687IRTZ

Renesas Electronics CorporationIn Stock: 3064ISL97687IRTZ Datasheet

MFR RecommendedRFQ

ISL97687IRTZ-T

Renesas Electronics CorporationIn Stock: 810ISL97687IRTZ-T Datasheet

MFR RecommendedRFQ

LP8860HQVFPRQ1

Texas InstrumentsIn Stock: 2018LP8860HQVFPRQ1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP3394ES-LF-Z is determined by the following critical parameters:

• Topology: Step-up (boost) DC DC controller architecture
• Output Configuration: 4-channel output structure
• Current Capacity: Minimum 200mA per channel output current
• Supply Voltage Range: Compatibility within 5V to 28V input specification
• Dimming Capability: PWM dimming support for backlight applications
• Package Compatibility: Surface mount technology with pin-compatible or functionally equivalent packaging
• Compliance Standards: ROHS3 compliance and automotive-grade certifications where applicable

The identified substitute parts maintain these core functional parameters while offering active product status and enhanced specifications in certain categories.

Parameter Comparison

Engineering Selection Recommendations

ISL97687IRTZ and ISL97687IRTZ-T (Renesas Electronics)

These parts maintain active product status and provide 4-channel boost topology with PWM and analog dimming capability. The supply voltage range extends to 32V maximum, exceeding the original specification. Output current per channel is rated at 160mA, which is lower than the MP3394ES-LF-Z 200mA specification. The primary distinction between these two part numbers is packaging: ISL97687IRTZ is supplied in tube packaging, while ISL97687IRTZ-T is supplied in tape and reel format. Both use 28-TQFN (5x5) package geometry, requiring PCB layout redesign compared to the original 16-SOIC footprint.

LP8860HQVFPRQ1 (Texas Instruments)

This part offers the widest supply voltage range (3V to 48V) and maintains active product status with AEC-Q100 automotive qualification. It supports PWM dimming across a frequency range of 100kHz to 2.2MHz. Output current per channel is 150mA, lower than the original specification. The 32-HLQFP (7x7) package requires significant PCB layout modification. This option is suitable for applications requiring automotive-grade reliability and extended voltage operating range.

All substitute parts maintain ROHS3 compliance and are suitable for backlight applications. Selection should be based on specific supply voltage requirements, output current demands, package compatibility constraints, and automotive qualification needs.

Frequently Asked Questions (FAQ)

Q: Can the ISL97687IRTZ directly replace the MP3394ES-LF-Z without PCB modification?

A: No. While both are 4-channel boost topology LED driver controllers, the ISL97687IRTZ uses a 28-TQFN (5x5) package compared to the MP3394ES-LF-Z 16-SOIC package. PCB layout redesign is required. Pin configuration and signal routing differ between these packages.

Q: What is the significance of the output current difference between the MP3394ES-LF-Z (200mA) and substitute parts (150-160mA)?

A: The MP3394ES-LF-Z delivers 200mA per channel, while ISL97687IRTZ and ISL97687IRTZ-T deliver 160mA, and LP8860HQVFPRQ1 delivers 150mA. Applications requiring the full 200mA per channel must verify that substitute parts meet current delivery requirements. Lower current ratings may limit LED brightness or require circuit topology adjustments.

Q: What is the difference between ISL97687IRTZ and ISL97687IRTZ-T?

A: Both parts are electrically identical with the same specifications. The difference is packaging format: ISL97687IRTZ is supplied in tube packaging, while ISL97687IRTZ-T is supplied in tape and reel format. Selection depends on assembly line requirements and volume handling procedures.

Q: Is the LP8860HQVFPRQ1 suitable for automotive applications?

A: Yes. The LP8860HQVFPRQ1 carries AEC-Q100 automotive qualification, making it suitable for automotive-grade backlight and lighting applications. The ISL97687 variants do not specify automotive qualification.

Q: How does the supply voltage range affect substitution decisions?

A: The MP3394ES-LF-Z operates from 5V to 28V. The ISL97687 variants extend this to 9V to 32V, while the LP8860HQVFPRQ1 operates from 3V to 48V. If your application requires operation below 9V, only the MP3394ES-LF-Z or LP8860HQVFPRQ1 are suitable. If operation above 28V is required, ISL97687 or LP8860HQVFPRQ1 variants are necessary.

Q: What dimming methods are supported by each substitute part?

A: The MP3394ES-LF-Z supports PWM dimming only. The ISL97687IRTZ and ISL97687IRTZ-T support both analog and PWM dimming, providing additional flexibility. The LP8860HQVFPRQ1 supports PWM dimming. Verify that your application's dimming control method is compatible with the selected substitute.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts (ISL97687IRTZ, ISL97687IRTZ-T, and LP8860HQVFPRQ1) are ROHS3 compliant, matching the compliance status of the MP3394ES-LF-Z.