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MAX6946 Evaluation Kit/Evaluation System

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Active: In Production.


The MAX6946 evaluation (EV) kit is an assembled and tested PCB that demonstrates the capabilities of the MAX6946 constant-current LED driver and digital I/O expander. The EV kit includes three RGB LEDs and one white LED that can be controlled simultaneously by the MAX6946. The MAX6947 can also be evaluated on the EV kit board by replacing the MAX6946 IC.

The MAX6946 evaluation system (EV system) includes a MAX6946 EV kit and a Maxim interface board (CMAXQUSB). The CMAXQUSB board connects to a PC’s USB port and allows the transfer of I²C commands to the MAX6946 EV kit.

The CMAXQUSB board allows a PC to use its USB port to emulate an I²C 2-wire interface. Windows® 98SE/2000/XP-compatible software (which can be downloaded from provides a user-friendly interface to exercise the features of the MAX6946. The program is menu driven and offers a graphical user interface (GUI) with control buttons and a status display. Order the MAX6946EVCMAXQU+ for a complete PC-based evaluation kit of the MAX6946. Order the MAX6946EVKIT+ if you already have a CMAXQUSB interface board or an I²C-compatible 2-wire interface system.

Data Sheet

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NOTE: This product uses the following:
MAX6946 EVKIT Software

Key Features

  • Proven PCB Layout
  • Windows 98SE/2000/XP-Compatible Evaluation Software
  • Three RGB LEDs and One White LED
  • Access to I²C Interface Signals
  • Header for Accessing to the MAX6946 10 I/O Ports
  • Fully Assembled and Tested
  • Underwriters Laboratories (UL) Recognized


  • Cellular Phones
  • Keypad Backlights
  • LCD Backlights
  • LED Status Indicators
  • Portable Equipment
  • RGB LED Drivers

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Document Ref.: 19-0752 Rev 0; 2007-03-09
This page last modified: 2007-04-26