MAX8647

PRODUCTION

Ultra-Efficient Charge Pumps for Six White/RGB LEDs in 3mm x 3mm Thin QFN

Achieves Industry's Highest Efficiency Using the Industry's First Negative Charge Pump Driving Six White/RGB LEDs Independently

Data Sheet (Rev. 1) Product Selection Table
Part Models
2
1ku List Price
Starting From $2.85
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Part Details

  • Six Adaptive Current Regulators
  • Independent Voltage Supply for Each LED
  • Individual LED Brightness Control (MAX8647)
  • 24mA to 0.1mA Dimming Range
    • I²C Interface (MAX8647)
    • Serial-Pulse Dimming Logic (MAX8648)
  • ±2% Accuracy, ±0.4% Matching (typ)
  • Low 70µA Quiescent Current
  • Low 1µA Shutdown Current
  • Inrush Current Limit
  • TA Derating Function Protects LEDs
  • 16-Pin, 3mm x 3mm Thin QFN Package
MAX8647
Ultra-Efficient Charge Pumps for Six White/RGB LEDs in 3mm x 3mm Thin QFN
MAX8647, MAX8648: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Inductorless (Charge Pump) LED Drivers 3
MAX1576
PRODUCTION 480mA White LED 1x/1.5x/2x Charge Pump for Backlighting and Camera Flash
MAX1574
PRODUCTION 180mA, 1x/2x, White LED Charge Pump in 3mm x 3mm TDFN
MAX1573
PRODUCTION White LED 1x/1.5x Charge Pump in UCSP and Thin QFN
Product 3
MAX1578
Complete Bias and White LED Power Supplies for Small TFT Displays
MAX1582
High-Efficiency Step-Up Converters for White LED Main and Subdisplay Backlighting
MAX1575
White LED 1x/1.5x Charge Pump for Main and Sub-Displays
Step-Up (Boost) LED Drivers 5
MAX8596
Obsolete High-Efficiency, 36V Step-Up Converters with TA Derating Option for 2 to 9 White LEDs
MAX8595
LAST TIME BUY High-Efficiency, 36V Step-Up Converters with TA Derating Option for 2 to 9 White LEDs
MAX1561
PRODUCTION High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs
MAX1599
PRODUCTION High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs
MAX1848
PRODUCTION White LED Step-Up Converter in SOT23
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Tools & Simulations

Software Development 1

Evaluation Kits

MAX8648EVKIT

MAX8648 Evaluation Kit

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Features and Benefits

  • MAX8648 EV Kit Powers Up to Six WLEDs or One RGB LED Module
  • Adaptive Current Regulators
  • 24mA to 0.1mA Dimming Range
    • Serial-Pulse Dimming Logic (MAX8648)
    • I²C Interface (MAX8647)
  • 2% (Max) Accuracy ±0.4% (Typ) Current Matching
  • Low 70µA Quiescent Current
  • Low 1µA Shutdown Current
  • Thermal TA Derating Function
  • 2.7V to 5.5V Supply Voltage Range
  • 16-Pin, 3mm x 3mm Thin QFN IC Package
  • Fully Assembled and Tested

Product Details

The MAX8648 evaluation kit (EV kit) is a fully assembled and tested printed-circuit board (PCB) for evaluating the ultra-efficient charge pump for six white/RGB LEDs in a 3mm x 3mm thin QFN IC package. This MAX8648 EV kit drives six white LEDs (WLEDs) or one RGB LED module. The EV kit includes three pulse generators that are used for testing the single-wire, serial-pulse dimming of the MAX8648 IC.

The MAX8648 EV kit can also evaluate the MAX8647 when using the Maxim CMAXQUSB+ command module. To evaluate the MAX8647, order the MAX8648 EV kit, the CMAXQUSB+ command module, and a free sample of the MAX8647ETE+. The CMAXQUSB+ command module is required for SMBus™ control of the MAX8647. The MAX8647 evaluation software can be downloaded from the Maxim website at www.maximintegrated.com/evkitsoftware.

Applications

  • Camera Flash or RGB Indicators
  • Cellular Phones and Smartphones
  • PDAs, Digital Cameras, and Camcorders
  • White LED Backlighting, Single or Dual Display
  • Wide-Gamut RGB LED Display Backlighting
MAX8648EVKIT
MAX8648 Evaluation Kit

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