19-4987; Rev 0; 9/09
MAX6948 Evaluation Kit
Evluates:MAX6948B
General Description
Features
The MAX6948 evaluation kit (EV kit) provides a proven
design to evaluate the MAX6948B 5-port, constant-
current LED driver with PWM intensity control and inte-
grated boost converter in a 25-bump WLP package.
o 2.7V to 5V V+ Supply Range
o Boost Converter Drives 6 Series White LEDs
o Boost Output PWM Dimming
®
The EV kit also includes Windows 2000-, Windows
o Selectable Current Sinks for LEDs
®
®
XP -, and Windows Vista -compatible software that
provides a simple graphical user interface (GUI) for
exercising the features of the MAX6948B. The
MAX6948 EV kit PCB comes with a MAX6948BGWA+
installed.
o Windows 2000-, Windows XP-, and Windows Vista
(32-Bit)-Compatible Software
o USB-PC Connection (Cable Included)
o Proven PCB Layout
The MAX6948 EV kit boost converter drives 6 high-
brightness white LEDs in series with 30mA (typ). The
boost converter features 10-bit PWM dimming, standby
mode, input current limit, and overvoltage protection.
o Fully Assembled and Tested
Ordering Information
The MAX6948 EV kit’s I/O ports drive LEDs or act as
open-drain GPIO port expanders. Jumpers easily
switch between the two functions. The ports feature
selectable constant-current sinking, fading, and 8-bit
PWM.
PART
TYPE
MAX6948EVKIT+
EV Kit
+Denotes lead(Pb)-free and RoHS compliant.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
C1, C3–C10,
C17, C21–C25,
C28, C30, C33
0.1µF 10%, 16V X7R ceramic
capacitors (0603)
TDK C1608X7R1C104K
0.1µF 10%, 50V X7R ceramic
capacitor (0603)
TDK C1608X7R1H104K
18
6
C32
1
10µF 20%, 6.3V X5R ceramic
capacitors (0805)
TDK C2012X5R0J106M
Not installed, ceramic capacitors
(0402)
C2, C13, C15,
C27, C29, C31
C35, C36
D1
0
1
Green LED (0603)
10pF 5%, 50V C0G ceramic
capacitors (0603)
TDK C1608C0G1H100J
40V, 500mA Schottky diode
(SOD323)
Central Semi CMDSH05-4
C11, C12
C14, C16, C34
C18, C19
C20
2
D2
1
1µF 20%, 6.3V X5R ceramic
capacitors (0603)
TDK C1608X5R0J105K
White surface-mount LEDs
(3mm x 2mm)
3
D3–D8
6
D9, D10
D11
2
1
Orange LEDs (1206)
22pF 5%, 50V C0G ceramic
capacitors (0603)
TDK C1608C0G1H220J
RGB LED (3.2mm x 3.6mm)
2
Not installed, dual-row (2 x 5)
10-pin header
H1
0
3300pF 10%, 50V X7R ceramic
capacitor (0603)
TDK C1608X7R1H332K
1
J1
1
Dual-row (2 x 4) 8-pin header
JU1–JU10
10 3-pin headers
Not installed, headers—shorted
(PCB trace)
0.22µF 10%, 50V X5R ceramic
capacitor (0805)
TDK C2012X5R1H224K
C26
1
JUA–JUE
0
Windows, Windows XP, and Windows Vista are registered
trademarks of Microsoft Corp.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.