19-3246; Rev 0; 4/04
MAX1583 Evaluation Kit
General Description
Features
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.
♦ 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
/ P ) Movie Mode
IN
LED
♦ Thermal-Shutdown Protection
♦ 10-Lead 3mm x 3mm TDFN Package
♦ Surface-Mount Components
♦ Fully Assembled and Tested
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.
Ordering Information
PART
TEMP RANGE IC PACKAGE
0°C to +70°C 10 TDFN 3mm x 3mm
MAX1583EVKIT
Note: To evaluate the MAX1583Y or MAX1583Z, request a
MAX1583YETB or MAX1583ZETB free sample with the
MAX1583 EV kit.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
White LED module
Nichia NBCW011T
22µF, 6.3V X5R ceramic capacitor
(0805)
D2
1
C1
C2
1
1
2
1
1
TDK C2012X5R0J226M
30V, 100mA Schottky diode (SOD
523)
Central Semiconductor CMOSH-3
D5
1
10µF 10%, 25V X5S ceramic
capacitor (1206)
Taiyo Yuden TMK316C106KL
JU1, JU2
JU3
2
1
3-pin headers
2-pin header
0.01µF 10%, 16V X7R ceramic
capacitors (0402)
TDK C1005X7R1E103K
C3, C4
C5
4.7µH, 1.06A, 450mΩ
TOKO 984FB-4R7M
L1
1
R1
R2
1
1
3
6.04kΩ 1% resistor (0402)
3.01kΩ 1% resistor (0402)
100kΩ 5% resistors (0402)
0.1µF 10%, 25V X7R ceramic
capacitor (0603)
TDK C1608X7R1E104K
R3, R4, R5
Momentary pushbutton switch
Panasonic EVQ-PHP03T
30V, 500mA, V = 0.4V Schottky
F
diode (SOD-323)
SW1
1
D1
Diodes, Inc. B0530WS
________________________________________________________________ Maxim Integrated Products
1
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.