MAX8595Z

PRODUCTION

High-Efficiency, 32V Step-Up Converters with TA Derating Option for 2 to 8 White LEDs

High-Efficiency, 32V Step-Up Converters with Temperature Derating Option for 2 to 8 White LEDs

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • Up to 8 LEDs at 25mA
  • Temperature Derating Function to Allow Fewer LEDs for Same Light (MAX8596Z)
  • 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 5.5V Input Range
  • 0.3µA Shutdown Current
  • Pin Compatible with the MAX1561 and MAX1599
  • TDFN 3mm x 3mm x 0.8mm Package with Exposed Paddle
    • MAX8595Z
    High-Efficiency, 32V Step-Up Converters with TA Derating Option for 2 to 8 White LEDs
    MAX8595Z, MAX8596Z: Typical Operating Circuit
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    Documentation

    Data Sheet 1

    Technical Articles 2

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    Software Resources

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    Hardware Ecosystem

    Parts Product Life Cycle Description
    LED Drivers 10
    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
    MAX1582
    		Obsolete High-Efficiency Step-Up Converters for White LED Main and Subdisplay Backlighting
    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
    MAX1575
    		Obsolete White LED 1x/1.5x Charge Pump for Main and Sub-Displays
    MAX1910
    		PRODUCTION 1.5x/2x High-Efficiency White LED Charge Pumps
    MAX1916
    		PRODUCTION Low-Dropout, Constant-Current Triple White LED Bias Supply
    MAX1912
    		Obsolete 1.5x/2x High-Efficiency White LED Charge Pumps
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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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