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MAX8831EVKIT

Evaluation Kit for the MAX8831

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet Evaluation Kit for the MAX8831 Mar 25, 2009

Support & Training

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Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

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

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.

Simplified Block Diagram

Technical Docs

Data Sheet Evaluation Kit for the MAX8831 Mar 25, 2009

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .