User manual

MAX17127 Evaluation Kit
Evaluates: MAX17127
2 ______________________________________________________________________________________
*EP = Exposed pad.
Component List (continued)
Component Suppliers
Note: Indicate that you are using the MAX17127 when contacting these component suppliers.
Quick Start
Recommended Equipment
• MAX17127 EV kit
• 5V to 26V power supply (VIN)
Procedure
The 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 EV kit, verify that the shunts are installed, as
shown in Table 1.
2) Connect the positive terminal of the VIN power
supply to the VIN pad. Connect the ground terminal
of the VIN power supply to the PGND pad.
3) Set the VIN power supply to 12V and enable its output.
4) Verify that the six strings of WLEDs are on.
Detailed Description of Hardware
The MAX17127 evaluation kit (EV kit) operates on a 5V
to 26V wide-input voltage range and provides adjust-
able 10mA to 30mA full-scale LED current. The EV kit
utilizes a step-up DC-DC converter to generate the
voltage required to drive up to six strings of 10 surface-
mount WLEDs.
Table 1. Default Shunt Positions
SUPPLIER PHONE WEBSITE
AVX Corporation 843-946-0238 www.avxcorp.com
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
Nichia Corp. 248-352-6575 www.nichia.com
OPTEK Technologies 972-323-2200 www.optekinc.com
Sumida Corp. 847-545-6700 www.sumida.com
Taiyo Yuden 800-348-2496 www.t-yuden.com
TDK Corp. 847-803-6100 www.component.tdk.com
Toshiba America Electronic Components, Inc. 949-623-2900 www.toshiba.com/taec
DESIGNATION QTY DESCRIPTION
R5 1
82.5kI Q1% resistor (0603)
R6 1
2.21MI Q1% resistor (0603)
R7 1
71.5kI Q1% resistor (0603)
R11 0 Not installed, resistor (0603)
R12 0
Not installed, multiturn
potentiometer
R14 2
500kI multiturn potentiometer
DESIGNATION QTY DESCRIPTION
U1 1
Six-string WLED driver
(20 TQFN-EP*)
Maxim MAX17127ETP+
— 17 Shunts
— 1
PCB: MAX17127 EVALUATION
KIT+
JUMPER SHUNT POSITION
JU1, JU6, JU8–JU12 1-2
JU4, JU14, JU15,
JU17–JU20, JU21
Not installed
JU13, JU16 Installed