MAX8596X

High-Efficiency, 36V Step-Up Converters with TA Derating Option for 2 to 9 White LEDs

Data Sheet (Rev. 2)
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Part Details

  • Up to Nine LEDs at 25mA
  • Temperature Derating Function to Allow Fewer LEDs for Same Light (MAX8596X)
  • 86% Efficiency (PLEDs / PIN)
  • 1.7% Current-Regulation Accuracy
  • Output Overvoltage Protection
  • Flexible Dimming Control
    • Analog
    • Direct-PWM Internal Filter
  • 1MHz PWM Switching Frequency
  • 0.1µF Output Capacitor
  • 12mVP-P Low Input Ripple
  • Soft-Start Eliminates Inrush Current
  • 2.6V to 6V Input Range
  • 0.3µA Shutdown Current
  • Pin Compatible with the MAX1561 and MAX1599
  • TDFN 3mm x 3mm x 0.8mm Package with Exposed Paddle
MAX8596X
High-Efficiency, 36V Step-Up Converters with TA Derating Option for 2 to 9 White LEDs
MAX8595X, MAX8596X: Typical Operating Circuit
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Documentation

Data Sheet 1

Technical Articles 2

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Hardware Ecosystem

Parts Product Life Cycle Description
Inductorless (Charge Pump) LED Drivers 4
MAX1570
PRODUCTION White LED Current Regulator with 1x/1.5x High-Efficiency Charge Pump
MAX1573
PRODUCTION White LED 1x/1.5x Charge Pump in UCSP and Thin QFN
MAX1574
PRODUCTION 180mA, 1x/2x, White LED Charge Pump in 3mm x 3mm TDFN
MAX1910
PRODUCTION 1.5x/2x High-Efficiency White LED Charge Pumps
Product 3
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
MAX1912
1.5x/2x High-Efficiency White LED Charge Pumps
Step-Down (Buck) LED Drivers 1
MAX1916
PRODUCTION Low-Dropout, Constant-Current Triple White LED Bias Supply
Step-Up (Boost) LED Drivers 2
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
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Evaluation Kits

MAX8596ZEVKIT

Evaluation Kit for the MAX8595X, MAX8595Z, MAX8596X, MAX8596Z

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Features and Benefits

  • Constant Current Regulation for Uniform Illumination
  • TA Derating Function to Allow Fewer LEDs for Same Brightness (MAX8596Z)
  • Flexible Analog or PWM Dimming Control
  • 1MHz Fixed-Frequency Switching
  • Output Overvoltage Protection
  • 2.6V to 5.5V Input Range
  • Up to 1.2W Output Power
  • Internal 36V Switch
  • High Efficiency Up to 86%
  • Tiny 3mm x 3mm TDFN Package
  • Small, Low-Profile Components
  • Fully Assembled and Tested

    • Product Details

    The MAX8596Z evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX8596Z white LED step-up DC-DC converter. The circuit operates from 2.6V to 5.5V and delivers an adjustable 0 to 25mA to drive up to 8 white LEDs in series.

    The MAX8596Z EV kit comes configured for driving 6 white surface-mount LEDs; however, it can support up to 8 white LEDs. A 9th LED pad is provided to evaluate the MAX8595X/MAX8596X. The EV kit features the MAX8596Z's temperature derating function, but can be used to evaluate the MAX8595Z without this feature. Either IC provides the flexibility of controlling LED brightness through an external analog or a PWM dimming signal.

    Applications

    • Cell Phones/Smartphones
    • e-Books and Subnotebooks
    • PDAs, Palmtops, and Wireless Handhelds
    • White LED Display Backlighting
    MAX8596ZEVKIT
    Evaluation Kit for the MAX8595X, MAX8595Z, MAX8596X, MAX8596Z

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