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MAX1583 Arkusz danych(PDF) 1 Page - Maxim Integrated Products |
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MAX1583 Arkusz danych(HTML) 1 Page - Maxim Integrated Products |
1 / 5 page General Description 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 pro- vide camera flash/strobe in cell phones, PDAs, DSCs, and other hand-held devices. The MAX1583 switching frequency is 1MHz, allowing tiny external components. Two logic inputs control four modes of operation: shut- down mode (0.5µA max), movie mode for high-efficien- cy 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 program- mable up to 300mA (100mA with installed compo- nents). A pushbutton pulse generator is installed to sim- ulate a 30ms flash pulse. The MAX1583 comes with the MAX1583X (1A current limit) installed, but the entire MAX1583 family can be eval- uated with this EV kit with minor component changes. Features ♦ 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 MAX1583 Evaluation Kit ________________________________________________________________ Maxim Integrated Products 1 19-3246; Rev 0; 4/04 Component List For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Ordering Information PART TEMP RANGE IC PACKAGE MAX1583EVKIT 0°C to +70°C 10 TDFN 3mm x 3mm DESIGNATION QTY DESCRIPTION C1 1 22µF, 6.3V X5R ceramic capacitor (0805) TDK C2012X5R0J226M C2 1 10µF ±10%, 25V X5S ceramic capacitor (1206) Taiyo Yuden TMK316C106KL C3, C4 2 0.01µF ±10%, 16V X7R ceramic capacitors (0402) TDK C1005X7R1E103K C5 1 0.1µF ±10%, 25V X7R ceramic capacitor (0603) TDK C1608X7R1E104K D1 1 30V, 500mA, VF = 0.4V Schottky diode (SOD-323) Diodes, Inc. B0530WS DESIGNATION QTY DESCRIPTION D2 1 White LED module Nichia NBCW011T D5 1 30V, 100mA Schottky diode (SOD 523) Central Semiconductor CMOSH-3 JU1, JU2 2 3-pin headers JU3 1 2-pin header L1 1 4.7µH, 1.06A, 450m Ω TOKO 984FB-4R7M R1 1 6.04k Ω ±1% resistor (0402) R2 1 3.01k Ω ±1% resistor (0402) R3, R4, R5 3 100k Ω ±5% resistors (0402) SW1 1 Momentary pushbutton switch Panasonic EVQ-PHP03T Note: To evaluate the MAX1583Y or MAX1583Z, request a MAX1583YETB or MAX1583ZETB free sample with the MAX1583 EV kit. |
Podobny numer części - MAX1583 |
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Podobny opis - MAX1583 |
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