MPR083Q Equivalent & Substitute Parts

Part Overview

The MPR083Q is a capacitive touch sensor controller manufactured by NXP USA Inc., designed for touch button, slider, and wheel applications with proximity detection capability. This 16-QFN package device operates across a 1.8V to 3.6V supply range and communicates via I2C interface. The product is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

MPR083Q

NXP USA Inc.In Stock: 2147MPR083Q Datasheet

Current PartRFQ

LDS6104NQGI

Renesas Electronics CorporationIn Stock: 944LDS6104NQGI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LDS6104NQGI from Renesas Electronics Corporation qualifies as a functional substitute based on the following alignment of critical parameters:

Functional Compatibility Criteria:

• Touch sensor controller architecture supporting capacitive touch buttons, slider, and wheel applications
• I2C communication interface (primary protocol match; LDS6104NQGI additionally supports SPI)
• Surface mount technology with exposed pad package design
• Input channel capacity of up to 8 channels (equivalent to MPR083Q's 8 inputs)
• ROHS3 compliance and REACH unaffected status matching regulatory requirements

Substitution Limitations:

• LDS6104NQGI does not include proximity detection capability
• Package footprint differs (28-VQFN vs. 16-VQFN), requiring PCB layout modification
• Supply voltage range is broader (1.65V ~ 5.5V) but encompasses MPR083Q operating range
• Operating temperature range not specified for LDS6104NQGI in provided data

Parameter Comparison

Engineering Selection Recommendations

Selection of the LDS6104NQGI as a substitute for the obsolete MPR083Q is appropriate when the following conditions are met:

Proceed with LDS6104NQGI when:

• Proximity detection functionality is not required in the application
• PCB layout can accommodate the larger 28-VQFN package footprint
• Firmware can be adapted to support I2C or SPI communication protocols
• Lower supply current (70µA vs. 1.62mA) provides design advantage
• ROHS3 compliance and REACH unaffected status satisfy regulatory requirements

Do not substitute if:

• Proximity detection is a mandatory system requirement
• PCB space constraints prohibit package size increase
• Existing firmware is locked to MPR083Q-specific register architecture

Both devices maintain equivalent regulatory compliance (ROHS3, REACH unaffected, EAR99 ECCN classification).

Frequently Asked Questions (FAQ)

Q: Can the LDS6104NQGI directly replace the MPR083Q without firmware changes?

A: No. While both devices support I2C communication and capacitive touch sensing, register maps and command structures differ between manufacturers. Firmware adaptation is required.

Q: What is the primary limitation of using LDS6104NQGI as a substitute?

A: The LDS6104NQGI does not support proximity detection. If your application requires proximity sensing beyond touch detection, this substitute is not suitable.

Q: Does the package size difference affect electrical performance?

A: Package size difference (16-VQFN to 28-VQFN) requires PCB layout modification but does not affect electrical performance. The larger package provides additional I/O flexibility.

Q: Is the LDS6104NQGI more power-efficient than the MPR083Q?

A: Yes. The LDS6104NQGI operates at 70µA supply current compared to the MPR083Q's 1.62mA, representing approximately 95% lower quiescent current consumption.

Q: Are both devices suitable for industrial temperature applications?

A: The MPR083Q specifies -40°C to 85°C operating range. Operating temperature specifications for the LDS6104NQGI are not provided in available data. Verify temperature requirements with the manufacturer before selection.

Q: What communication protocols does each device support?

A: The MPR083Q supports I2C only. The LDS6104NQGI supports both I2C and SPI, providing additional interface flexibility.