MAX8831EVKIT

Evaluation Kit for the MAX8831

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Active: In Production.

Description

The MAX8831 evaluation kit (EV kit) is a fully assembled and tested PCB for evaluating the MAX8831 white LED step-up converter. The MAX8831 EV kit operates from an input supply range of 2.7V to 5.5V and is controlled by an I²C interface. The MAX8831 features a 60mA, 28V PWM DC-DC step-up converter with five low-dropout LED current regulators. Each of the five current regulators accommodates up to 9 series LEDs (depending on LED string forward voltage), and are independently programmed using an I²C interface. The I²C interface controls all operational aspects of the current regulators, including on/off state, LED current, ramp-up/ramp-down timers, and blink rate timers (LED3, LED4, and LED5).

The MAX8831 EV kit also includes Windows® 2000/XP- and Windows Vista®-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX8831. The MAX8831 EV kit features an I²C interface to control the LED current, ramp-up/ramp-down time, and blink on/off time. To control the MAX8831 EV kit from a PC, order the CMAXQUSB command module along with the MAX8831 EV kit.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 0 (PDF, 544kB)
Send this datasheet to any email addressE-Mail
NOTE: This product uses the following:
MAX8831 EVKIT Software

Key Features

  • 28V Step-Up DC-DC Converter
  • I²C Interface Control
  • Two 25.25mA LED Strings (LED1, LED2) for Display Backlighting
    • I²C-Programmable Output Current (50µA to 25.25mA)
    • 128-Step Logarithmic Dimming
    • Individually Programmable Ramp (Up/Down) Timers
  • Three 5mA LED Strings for Keypad Lighting
    • I²C-Programmable Output Current (50µA to 5mA)
    • 32-Step Logarithmic Dimming
    • Individually Programmable Ramp (Up/Down) Timers
    • Individual Blink Rate and Duty-Cycle Timers
  • RGB LED Module
  • Alternative Power Supply (VIN2) for LED3, LED4, and LED5 Strings
  • Open/Short LED and Open-Circuit Diode Detection
  • Thermal Shutdown and Output Overvoltage Protection
  • Lead(Pb)-Free and RoHS Compliant
  • Fully Assembled and Tested PCB
 

Applications/Uses

  • Cell Phones
  • PDAs
  • Smartphones
   

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Document Ref.: 19-4455 Rev 0; 2009-03-25
This page last modified: 2009-03-25




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