19-4070; Rev 1; 10/08
MAX17061 Evaluation Kit/Evaluation System
General Description
The MAX17061 evaluation system (EV system) consists
of the MAX17061 evaluation kit (EV kit) and the
Maxim CMAXQUSB+ command module. Windows
®
2000/XP- and Windows Vista
®
-compatible software is
also available for use with the EV system (MAX17061EVC-
MAXQU+) and can be downloaded from the Maxim
website (www.maxim-ic.com/evkitsoftware).
The MAX17061 EV kit (MAX17061EVKIT+) is a fully
assembled and tested surface-mount printed-circuit
board (PCB) that evaluates the high-efficiency
MAX17061 white LED (WLED) driver. The MAX17061 EV
kit utilizes a step-up DC-DC converter to generate the
voltage required to drive up to eight strings of 10 surface-
mount WLEDs. The EV kit uses a 7V to 21V input power
supply (single-supply mode) and can be configured to
provide a fixed 25mA or adjustable 15mA to 30mA full-
scale LED current. As shipped, the MAX17061 EV kit is
configured for evaluation with four strings of 10 WLEDs
and includes an I
2
C/SMBus™-compatible interface that
allows for software control of the brightness in 256 steps,
backlight-controller operating mode, manufacturer and
silicon revision detection, and fault detection.
The Maxim CMAXQUSB+ command module provides
the I
2
C/SMBus interface and is connected to the com-
puter through the universal serial bus (USB) port. The
MAX17061 EV kit software provides a graphical user
interface (GUI) for exercising the MAX17061 features.
Features
♦
7V to 21V Input Range
♦
87% Efficiency (V
IN
= 12V, Load = 4 WLED Strings,
Preset 25mA)
♦
WLED Drives Up to 30mA/String
♦
Drives Four Strings of 10 WLEDs (Capable of
Driving Up to Eight Strings)
♦
Full-Scale LED Current Adjustable from 15mA to
30mA, or Preset 25mA
♦
1MHz PWM Switching Frequency (Selectable:
500kHz or 750kHz, Component Change Required)
♦
All Components < 1mm Height
♦
Lead(Pb)-Free and RoHS Compliant
♦
Fully Assembled and Tested
Evaluate: MAX17061
Ordering Information
PART
MAX17061EVKIT+
MAX17061EVCMAXQU+
TYPE
EV Kit
EV System
+Denotes
lead(Pb)-free and RoHS compliant.
Note:
The Maxim CMAXQUSB+ command module is required
when using the MAX17061 EV kit software.
Component Lists
MAX17061 EV System
PART
MAX17061EVKIT+
CMAXQUSB+
QTY
1
1
DESCRIPTION
MAX16061 EV kit
I
2
C/SMBus interface command
module
C3
1
DESIGNATION
QTY
DESCRIPTION
4.7µF ±10%, 25V X5R ceramic
capacitor (1206)
Murata GRM319R61E475KA12D
Not installed, ceramic capacitor
(1206)
1.0µF ± 10%, 10V X7R ceramic
capacitors (0603)
Taiyo Yuden LMK107BJ105KA
Murata GRM188R71A105K
0.33µF±10%, 50V X7R ceramic
capacitors (1206)
Murata GRM319R71H334K
TDK C3216JB1H334K
Not installed, ceramic capacitors
(0603)
C4
0
MAX17061 EV Kit
DESIGNATION
QTY
DESCRIPTION
0.1µF ±10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H104K
TDK C1608X7R1H104K
0.022µF ±10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H223K
TDK C1608X7R1H223K
C5, C6
2
C1
1
C7–C12
6
C2
1
C13–C20,
C22–C30
0
Windows and Windows Vista are registered trademarks of
Microsoft Corp.
SMBus is a trademark of Intel 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.
MAX17061 Evaluation Kit/Evaluation System
Evaluate: MAX17061
Component Lists (continued)
MAX17061 EV Kit (continued)
DESIGNATION
QTY
DESCRIPTION
220pF ± 10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H221K
TDK C1608X7R1H221K
Not installed, test point
0.7A, 60V Schottky diodes (US-flat)
Toshiba CUS04
White LEDs
Nichia NSSW008CT-P1
OPTEK OVSRWACR6
Not installed, white LEDs
2 x 10 right-angle receptacle
U1
1
DESIGNATION
R1
R2
R3
R4
R5
R6
R7
R8, R9
R10
R11
QTY
0
1
1
1
1
1
1
0
1
1
DESCRIPTION
Not installed, resistor—short (PC
trace) (0603)
2.21MΩ ±1% resistor (0603)
61.9kΩ ±1% resistor (0603)
130kΩ ±5% resistor (0603)
200kΩ multiturn potentiometer
41.2kΩ ±1% resistor (0603)
500kΩ multiturn potentiometer
Not installed, resistors (0603)
5.1kΩ ±5% resistor (0603)
1MΩ resistor (0603)
8-string WLED driver
(28-pin thin QFN, 4mm x 4mm x
0.8mm)
Maxim MAX17061ETI+
Shunts
PCB: MAX17061 Evaluation Kit+
C21
1
CCV
D1, D82
0
2
D2–D41
D42–D81
J1
JU1–JU4,
JU10, JU11,
JU13
JU5–JU8
JU9
L1
40
0
1
7
3-pin headers
Not installed, 3-pin headers—short
(PC trace)
2-pin header
10µH, 1.2A power inductor
Sumida CR6D09HPNP-100MC
TDK VLP6810T-100M1R2
—
—
8
1
0
1
1
Component Suppliers
SUPPLIER
Murata Electronics North America, Inc.
Nichia Corp.
OPTEK Technologies
Sumida Corp.
Taiyo Yuden
TDK Corp.
Toshiba America Electronic Components, Inc.
PHONE
770-436-1300
248-352-6575
972-323-2200
847-545-6700
800-348-2496
847-803-6100
949-623-2900
www.nichia.com
www.optekinc.com
www.sumida.com
www.t-yuden.com
www.component.tdk.com
www.toshiba.com/taec
WEBSITE
www.murata-northamerica.com
Note:
Indicate that you are using the MAX17061 when contacting these component suppliers.
2
_______________________________________________________________________________________
MAX17061 Evaluation Kit/Evaluation System
MAX17061 EV Kit Files
PART
INSTALL.EXE
MAX17061.EXE
FTD2XX.INF
UNINST.INI
USB_Driver_Help.PDF
DESCRIPTION
Installs the EV kit files on your
computer
Application program
USB device driver file
Uninstalls the EV kit software
USB driver installation help file
3) Carefully connect the boards by aligning the 20-pin
connector of the MAX17061 EV kit with the 20-pin
header on the CMAXQUSB interface board. Gently
press them together.
4) Connect the positive terminal of the VIN power sup-
ply to the VIN pad. Connect the ground terminal of
the VIN power supply to the PGND pad.
5) Connect the USB cable from the computer’s type-
A USB port to the CMAXQUSB board’s type-B
USB port.
6) Visit www.maxim-ic.com/evkitsoftware to obtain the
latest version of the EV kit software, 17061Rxx.ZIP.
Download and install it on your computer by run-
ning the INSTALL.EXE program. The program files
are copied and icons are created in the Windows
Start
menu.
7) Set the VIN power supply to 12V and enable its output.
8) Start the MAX17061 program by opening its icon in
the
Start
menu.
Normal device operation is verified when
CMAXQUSB
HW: Connected. MAX17061 device connected.
is dis-
played at the bottom left of the MAX17061 EV kit win-
dow (Figure 1).
Evaluate: MAX17061
Quick Start
Recommended Equipment
Before beginning, the following equipment is needed:
• MAX17061 EV system
MAX17061 EV kit
Maxim CMAXQUSB command module
(USB cable included)
•
•
•
7V to 21V, 1A power supply (VIN)
A user-supplied Windows 2000/XP/Vista-compatible
PC
Available USB port
Note:
In the following sections, software-related items
are identified by bolding. Text in
bold
refers to items
directly from the EV kit software. Text in
bold and
underlined
refers to items from the Windows operating
system.
Detailed Description of Software
User-Interface Panel
The program’s main window (Figure 1) is navigated by
using a mouse or a combination of the keyboard’s tab
and arrow keys. The MAX17061 EV kit software pro-
vides controls for software-configurable features, such
as
Brightness Control, Device Control, Fault/Status
detection, and
Manufacturer ID
and
Silicon Revision
detection. Changes to the controls result in a write
operation that updates the appropriate registers of the
MAX17061. A status box is provided at the bottom of
the program’s main window and is used to verify com-
mand module and device connectivity. A
Device
Search
option is located under the
Action
menu bar
should the user want to switch from demo mode to nor-
mal operation.
Procedure
The MAX17061 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
1) On the CMAXQUSB command module, ensure
that the shunt on jumper JU1 is in the 5V (default)
position.
2) On the MAX17061 EV kit, verify that the shunts are
installed as follows:
JU1–JU4, JU10, JU13
JU9
JU11
1-2
Installed
2-3
_______________________________________________________________________________________
3
MAX17061 Evaluation Kit/Evaluation System
Evaluate: MAX17061
Figure 1. MAX17061 EV Kit Software Main Window
Brightness Control and Level
The MAX17061 can be configured to one of any 256
steps of brightness control. To set the brightness, slide
the
Brightness Control
track bar to the desired posi-
tion, from 0 to 255. The track-bar position is then dis-
played in the
Brightness Level
group box.
Fault/Status Detection
The MAX17061’s fault/status read-only register monitors
the backlight controller’s operating state. This register
detects the backlight on/off state, whether one or two
LED output channels are shut down, overcurrent condi-
tions, and thermal faults. When a fault is detected, the
corresponding bit is changed from logic 0 to logic 1 and
the font color is changed to red. Refer to the MAX17061
IC data sheet for more information regarding the
fault/status register.
Device Control
The MAX17061’s device control register controls the
operating mode of the backlight controller and backlight
on/off states. The MAX17061 operating modes can be
configured according to the bit settings shown in Table 1.
Manufacturer/Silicon Revision Detection
The
ID Register
group box provides the manufacturer
and silicon revision information for the MAX17061 IC.
This information is read upon initial startup.
Table 1. Operating Modes Selected by
Device Control Register
PWM_MD
X
1
0
X = Don’t care.
PWM_SEL
1
0
0
OPERATING MODE
PWM mode
SMBus mode
SMBus mode with DPST
Simple I
2
C/SMBus Commands
There are two methods for communicating with the
MAX17061, through the normal user interface (Figure
1), or through the SMBus commands available by
selecting the
Interface Diagnostic Window
menu item
4
_______________________________________________________________________________________
MAX17061 Evaluation Kit/Evaluation System
Evaluate: MAX17061
Figure 2. Interface Diagnostic Window
from the
Action
menu bar. The
Maxim Command
Module Interface
window pops up (Figure 2) and
includes a
2-wire interface
tab that allows for execu-
tion of simple I
2
C/SMBus commands.
The SMBus edit boxes in the
Command (SMBus
Protocols, Raw Block Read/Write, EEPROM
Read/Write)
group box accept numeric data in binary,
decimal, or hexadecimal. Hexadecimal numbers should
be prefixed by $ or 0x. Binary numbers must be exactly
eight digits. See Figure 2 for an illustration of this tool.
Detailed Description of Hardware
The MAX17061 EV system (MAX17061EVCMAXQU+)
consists of the MAX17061 EV kit (MAX17061EVKIT+)
and the Maxim CMAXQUSB+ command module. The
EV kit evaluates the MAX17061 WLED driver and the
CMAXQUSB provides the I
2
C/SMBus-compatible inter-
face for software control of the LED brightness in 256
steps, backlight-controller operating mode, manufactur-
er and silicon revision detection, and fault detection.
The MAX17061 EV kit can be operated in single- (V
IN
=
7V to 21V) or dual-supply (V
IN
= 7V to 21V, V
CC
= 4.5V
to 5.5V) mode through selection of jumper JU10. LED
current can be configured to provide a fixed 25mA or
adjustable 15mA to 30mA full-scale LED current
through jumper JU11 and/or resistor R5.
The MAX17061 EV kit utilizes a step-up DC-DC convert-
er to generate the voltage required to drive up to eight
strings of 10 surface-mount WLEDs. As shipped, the
MAX17061 EV kit is configured for evaluation with four
strings of 10 WLEDs.
_______________________________________________________________________________________
5
