Evaluates: MAX16831
MAX16831 Evaluation Kit
2
_______________________________________________________________________________________
Quick Start
Recommended Equipment
Before beginning, the following equipment is needed:
• 9V to 40V, 4A power supply
• Two digital voltmeters
• A series-connected LED string rated at 1A (28V max)
• A current probe to measure LED current
Procedures
The MAX16831 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 and do not power up the
MAX16831 EV kit without connecting a load to the
LED+ and LED- PCB pads.
Warning: Voltages exceeding 42V may exist on the
LED+ and LED- output pads.
1) Verify that a shunt is installed across jumper JU1
(analog dimming control).
2) Connect the power supply’s positive terminal to the
V
IN
PCB pad on the EV kit. Connect the power sup-
ply’s ground terminal to PGND PCB pad.
3) Connect the digital voltmeters across the V
IN
and
PGND PCB pads and the LED+ and LED-
PCB pads.
4) Connect the anode of the LED string to the
LED+ pad.
5) Connect the cathode of the LED string to the
LED- pad.
Component List (continued)
Component Suppliers
DESIGNATION QTY
DESCRIPTION
N2
1
100V, 42A n-channel MOSFET (D-Pak)
International Rectifier IRLR3110Z
N3
0
Not installed, MOSFET (D-Pak)
R1
1
73.2k
Ω
±1% resistor (0603)
R2
1
12.4k
Ω
±1% resistor (0603)
R3
1
0.1
Ω
±1%, 500mW sense resistor
(1206)
IRC/TT LRC-LR-1206LF-01-R100-F
R4
1
100
Ω
±5% resistor (0603)
R5
1
1
Ω
±5% resistor (0603)
R6, R7
2
0.04
Ω
± 1%, 2W sense r esi stor s ( 2512)
IRC/TT LRC-LR-2512LF-01-R040-F
DESIGNATION QTY
DESCRIPTION
R8
0
Not installed, resistor (0805)
R9
1
280k
Ω
±1% resistor (0603)
R10, R15
2
4.99k
Ω
±1% resistors (0603)
R11
1
1k
Ω
±1% resistor (0603)
R12
1
3.32k
Ω
±1% resistor (0603)
R13
1
42.2k
Ω
±1% resistor (0603)
R14
1
100k
Ω
potentiometer (single turn)
U1
1
Current-mode HBLED driver
(32 TQFN-EP*)
Maxim MAX1
—
1
Shunt (JU1)
—
1
PCB: MAX16831 Evaluation Kit+
SUPPLIER
PHONE
WEBSITE
Diodes, Inc.
805-446-4800
www.diodes.com
International Rectifier
310-322-3331
www.irf.com
IRC, Inc.
361-992-7900
www.irctt.com
Murata Electronics North America, Inc.
770-436-1300
www.murata-northamerica.com
Panasonic Corp.
800-344-2112
www.panasonic.com
Sumida Corp.
847-545-6700
www.sumida.com
TDK Corp.
847-803-6100
www.component.tdk.com
Vishay
402-563-6866
www.vishay.com
Note:
Indicate that you are using the MAX16831 when contacting these component suppliers.
*
EP = Exposed pad.