Evaluation Kit/Evaluation System for the MAX6620 (MAX6620EVKIT) (MAX6620EVKIT)

The MAX6620 evaluation system (MAX6620EVCMAXQU+) consists of the MAX6620 evaluation kit (MAX6620EVKIT+) and the Maxim CMAXQUSB+ command module. Windows 2000/XP/Vista®-compatible software is also available for use with the MAX6620 evaluation system (EV system) and can be downloaded from the Maxim website (www.maximintegrated.com/evkitsoftware).

The MAX6620 evaluation kit (EV kit) is a fully assembled and tested printed-circuit board (PCB) that evaluates the MAX6620 quad linear fan-speed controller. The MAX6620 controls the speeds of up to four fans using four independent linear voltage outputs. The EV kit includes 3-pin fan headers to allow easy fan connection and an I²C/SMBus™-compatible interface that allows for software control of the drive voltage, tachometer count, fan configuration, and fan dynamics.

The Maxim CMAXQUSB command module provides the I²C/SMBus interface and is connected to the computer through the universal serial bus (USB) port. The MAX6620 EV kit software provides a graphical user interface (GUI) for exercising the MAX6620 features.


  • 3V to 5.5V Supply Voltage Range
  • Controls Up to Four Independent Fans with Linear (DC) Drive
  • Uses Four External Low-Cost PNP Pass Transistors
  • Fan-Fail Output
  • I²C/SMBus-Compatible Interface
  • Fully Assembled and Tested


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