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MAX8821EVKIT
Evaluation Kit for the MAX8821


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 232kB)
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Description
The MAX8821 evaluation kit (EV kit) is a fully assembled and tested circuit for evaluating the MAX8821 white LED charge pump with a mono Class D audio amplifier and dual LDOs. The MAX8821 EV kit operates from a 2.7V to 5.5V input supply range and is controlled by an I²C interface. The MAX8821 features a high-efficiency, adaptive-mode inverting charge pump that drives up to six LEDs with constant current for uniform brightness.

The EV kit also includes Windows® 2000/XP/Vista®-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX8821. The EV kit software features an I²C interface to control the LED current, ramp-up/ramp-down time, and blink on/off-time. An internal temperature derating function reduces the current above +40°C to protect the LEDs.

The MAX8821 also features a mono Class D audio amplifier with adjustable gain, through the I²C interface, from -3dB to +24dB in ten 3dB steps. The I²C control interface selects the audio amplifier fixed-frequency mode or spread-spectrum mode, in addition to selecting individual LDO output voltages.

NOTE: This product requires use of the following:

  • MAX8821 EVKIT Software

    Key Features   Applications/Uses
    • Windows 2000/XP/Vista (32-Bit)-Compatible Software
    • CMAXQBUSB+ Interface Board with USB PC Connection (Cable Included)
    • Proven PCB Layout
    • Fully Assembled and Tested
    • White LED Inverting Charge Pump
      • Independent Adaptive Current Regulators for Each LED
      • Six Low-Dropout Current Regulators
      • Flexible I²C Dimming Control for Each LED
      • Ramp Up/Down Current Control for Each LED
      • Low 70µA (typ) Quiescent Current
      • TA Derating Function Protects LEDs
    • Mono 2W Class D Loudspeaker Amplifier
      • 85% Efficiency (RL = 8Ω, POUT = 600mW)
      • Low 0.05% THD+N at 1kHz
      • High 65dB PSRR at 1kHz
      • Fully Differential Inputs
      • -3dB to +24dB Gain Settings in 3dB Steps
      • Integrated Click-and-Pop Suppression
      • Low Quiescent Current
    • Dual Low-Noise LDO
      • 45µVRMS Output Noise, 73dB PSRR
      • Flexible I²C-Controlled Output Voltages
      • 200mA and 300mA Output Current Drive

     
  • Cell Phones and Smartphones
  • MP3 Players, GPS Devices
  • PDAs, Digital Cameras, Camcorders

    Design Guides
  • Low-Power Notebook ICs (PDF)
  • Audio (PDF)
  • Communications (PDF)
  • Displays (PDF)
  • Automotive (PDF)
  • Medical (PDF)
  • Power Management for Battery-Powered Equipment (PDF)

    Reliability Reports
    none

    Software/Models
  • MAX8821 EVKIT Software

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-1 of 1

    MAX8821EVKIT Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8821EVKIT+    
    Active

    Land Pattern: Not Available

    See data sheet

    Related Products
    MAX8821 White LED Charge Pump with Mono Class D Audio Amp and Dual LDO

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    Document Ref.: 19-4085; Rev 0; 2008-06-18
    This page last modified: 2008-11-13


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