MP3326GR-Z LED Driver IC - Equivalent & Substitute Parts

Part Overview

The MP3326GR-Z is a 16-output linear LED driver IC manufactured by Monolithic Power Systems Inc., designed for backlight applications. This Power Management (PMIC) component operates across a 4V to 16V supply range and delivers 50mA per output channel with multiple dimming control options including Analog, I2C, and PWM protocols. The device is currently in active production status with 5058 units available in inventory. Substitute parts are identified when supply constraints, lead time requirements, or inventory availability necessitate alternative sourcing while maintaining full electrical and mechanical compatibility.

Substiute Parts

MP3326GR-Z

Monolithic Power Systems Inc.In Stock: 5092MP3326GR-Z Datasheet

Current PartRFQ

MP3326GR-P

Monolithic Power Systems Inc.In Stock: 2467MP3326GR-P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP3326GR-Z are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Critical Parameters for Substitution:

• Identical number of outputs (16 channels)
• Matching supply voltage range (4V to 16V)
• Identical output current per channel (50mA)
• Same dimming control capabilities (Analog, I2C, PWM)
• Identical operating frequency options (220Hz, 250Hz, 280Hz, 330Hz)
• Same package type (24-QFN 4x4)
• Matching mounting type (Surface Mount, Wettable Flank)
• Identical operating temperature range (-40°C to 150°C)
• Same compliance certifications (ROHS3, REACH Unaffected)

The MP3326GR-P qualifies as a parametric equivalent substitute because it meets all critical electrical and mechanical parameters. The only difference is the packaging format designation (P versus Z suffix), which relates to tape and reel configuration but does not affect functional compatibility or electrical performance.

Parameter Comparison

Engineering Selection Recommendations

Both the MP3326GR-Z and MP3326GR-P are active production components from Monolithic Power Systems Inc. with identical electrical specifications and mechanical compatibility. Selection between these parts should be based on the following factors:

MP3326GR-Z Selection Criteria:

• Primary choice when inventory availability is the determining factor (5058 units in stock)
• Preferred for applications requiring maximum supply assurance
• Suitable for high-volume production runs with extended lead time requirements

MP3326GR-P Selection Criteria:

• Alternative when MP3326GR-Z supply is constrained (2381 units available)
• Functionally equivalent for all electrical and mechanical applications
• Maintains identical compliance certifications (ROHS3, REACH Unaffected)
• Supports identical dimming control protocols and operating parameters

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across global markets. The MSL 1 rating for both components indicates unlimited shelf life under standard storage conditions.

Frequently Asked Questions (FAQ)

Q: Are MP3326GR-Z and MP3326GR-P electrically interchangeable?

A: Yes. Both parts are manufactured by Monolithic Power Systems Inc. and share identical electrical specifications including 16 outputs, 50mA per channel, 4V to 16V supply range, and support for Analog, I2C, and PWM dimming control.

Q: What is the difference between the Z and P suffixes?

A: The suffix designates the tape and reel packaging configuration. Both parts use identical 24-QFN (4x4) packages with surface mount, wettable flank mounting. The suffix does not affect electrical performance or functional compatibility.

Q: Can I use MP3326GR-P as a direct replacement for MP3326GR-Z on existing PCBs?

A: Yes. Both parts have identical package dimensions (24-QFN 4x4), pin configurations, and mounting specifications. No PCB redesign or layout modifications are required.

Q: Do both parts support the same dimming control methods?

A: Yes. Both MP3326GR-Z and MP3326GR-P support Analog, I2C, and PWM dimming control with identical frequency options (220Hz, 250Hz, 280Hz, 330Hz).

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and maintain identical MSL 1 (unlimited) moisture sensitivity ratings. Regulatory compliance is identical across both part numbers.

Q: What is the operating temperature range for both parts?

A: Both MP3326GR-Z and MP3326GR-P operate across -40°C to 150°C junction temperature range, supporting identical thermal specifications for backlight applications.

Q: Which part should I select for new designs?

A: Selection should be based on current inventory availability and supply chain requirements. Both parts are active production components with identical specifications. MP3326GR-Z offers higher inventory availability (5058 units), while MP3326GR-P provides an alternative source (2381 units).