MAX1583
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MAX1583

White LED Camera-Flash Boost Converter

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First 24V, White-LED, Flash/Strobe Supply for Camera Phones

Part Details
Features
  • Supports Up to Five LEDs for Strobe or Flash
  • Four Operational Modes
    • Strobe: Up to 300mA
    • Precharge: With POK Indicator
    • Movie: Up to 100mA
    • Shutdown: 0.01µA (typ) Quiescent Current
  • Input Current Limiting
    • 1A (MAX1583X)
    • 500mA (MAX1583Y)
    • 250mA (MAX1583Z)
  • Small External Components
  • 2.6V to 5.5V Input Range
  • 24V Output Overvoltage Protection
  • 80% Efficient (PLED / PIN) Movie Mode
  • Thermal-Shutdown Protection
  • 10-Pin 3mm x 3mm TDFN Package
Additional Details
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The MAX1583 white LED boost converter drives up to five white LEDs with a constant current to provide camera flash/strobe in cell phones, PDAs, DSCs, and other hand-held devices. The MAX1583 includes a 24V boost converter and a high-voltage LDO current regulator for high efficiency and long battery life. Two logic inputs control four modes of operation: shutdown mode (0.5µA max), movie mode for high-efficiency continuous lighting (programmable up to 100mA), precharge mode for charging a reservoir capacitor to 24V while the LEDs are off (POK output indicates a full reservoir capacitor), and strobe mode for firing the flash during an exposure with a regulated current programmable up to 300mA.

The MAX1583X, MAX1583Y, and MAX1583Z offer high, medium, and low current limits, respectively, to allow tradeoff between reservoir capacitor size and peak input current.

The MAX1583 is available in a 10-pin 3mm x 3mm TDFN package (0.8mm max height).

Applications

  • Camera Flashes/Strobes
  • Cell Phones/Smartphones
  • PDAs and Digital Still Cameras

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX1583EVKIT

Evaluation Kit for the MAX1583

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MAX1583EVKIT

Evaluation Kit for the MAX1583

Evaluation Kit for the MAX1583

Features and Benefits

  • Supports Up to 5 LEDs for Strobe/Flash
  • Four Operational Modes
    • Strobe: Up to 300mA (Preset to 100mA)
    • Precharge: With POK Indicator
    • Movie: Up to 100mA (Preset to 20mA)
    • Shutdown: 0.01µA (typ) Quiescent Current
  • Input Current Limiting
    • 1A (MAX1583X)
    • 500mA (MAX1583Y)
    • 250mA (MAX1583Z)
  • 24V Output Overvoltage Protection
  • 80% Efficient (PLED/PIN) Movie Mode
  • Thermal-Shutdown Protection
  • 10-Lead 3mm x 3mm TDFN Package
  • Surface-Mount Components
  • Fully Assembled and Tested

Product Detail

The MAX1583 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board for evaluating the MAX1583 white LED flash boost converter. The EV kit accepts a 2.6V to 5.5V input voltage and drives up to five series white LEDs with a constant current to provide camera flash/strobe in cell phones, PDAs, DSCs, and other hand-held devices. The device's switching frequency is 1MHz, allowing tiny external components. Two logic inputs control four modes of operation: shutdown mode (0.5µA max), movie mode for high-efficiency continuous lighting (programmable up to 100mA), precharge mode for charging a reservoir capacitor to 24V while the LEDs are off (POK output indicates a full reservoir capacitor), and strobe mode for firing the flash during an exposure with a regulated current programmable up to 300mA (100mA with installed components). A pushbutton pulse generator is installed to simulate a 30ms flash pulse.

The EV kit comes with the MAX1583X (1A current limit) installed, but the entire MAX1583 family can be evaluated with minor component changes.

Applications

  • Camera Flashes/Strobes
  • Cell Phones/Smartphones
  • PDAs and Digital Still Cameras

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