MAX1583

White LED Camera-Flash Boost Converter

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

Data Sheet (Rev. 1)

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Part Details

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 (P_LED / P_IN) Movie Mode
Thermal-Shutdown Protection
10-Pin 3mm x 3mm TDFN Package

Documentation

Data Sheet 1

MAX1583: White LED Camera-Flash Boost Converter Data Sheet (Rev.1) 09/26/2005

This is the most up-to-date revision of the Data Sheet.

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
MAX1910	PRODUCTION	1.5x/2x High-Efficiency White LED Charge Pumps
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

Product 2
MAX1912		1.5x/2x High-Efficiency White LED Charge Pumps
MAX1582		High-Efficiency Step-Up Converters for White LED Main and Subdisplay Backlighting
Regulated Buck-Boost Charge Pumps 1
MAX1595	PRODUCTION	Regulated 3.3V/5.0V Step-Up/Step-Down Charge Pump
Step-Up (Boost) LED Drivers 6
MAX1848	PRODUCTION	White LED Step-Up Converter in SOT23
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
MAX1553	PRODUCTION	High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs
MAX1554	PRODUCTION	High-Efficiency, 40V Step-Up Converters for 2 to 10 White LEDs
MAX1698	PRODUCTION	High-Efficiency Step-Up Current Regulator for LEDs

Evaluation Kits

Evaluation Kit for the MAX1583

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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 (P_LED/P_IN) Movie Mode
Thermal-Shutdown Protection
10-Lead 3mm x 3mm TDFN Package
Surface-Mount Components
Fully Assembled and Tested

Product Details

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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