Datasheet

MAX17113 Evaluation Kit
Evaluates: MAX17113
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Component Suppliers
Note: Indicate that you are using the MAX17113 when contacting these component suppliers.
Quick Start
Recommended Equipment
• +10.8V to +13.2V DC power supply
• Digital multimeters (DMMs)
Procedure
The MAX17113 EV kit is fully assembled and test-
ed. Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
1) Preset the power supply to +12V and disable the out-
put.
2) Connect the positive terminal of the power supply
to the VIN pad. Connect the negative terminal of the
power supply to the PGND pad closest to VIN.
3) Verify that the jumpers follow the default settings in
Table 1.
4) Turn on the power supply.
5) Verify that the step-up switching regulator output
(AVDD) is approximately +16V.
6) Verify that the step-down switching regulator output
(OUT) is approximately +3.3V.
7) Verify that the gate-on supply (VGON) is approxi-
mately +35V.
8) Verify that the gate-off supply (VGOFF) is approxi-
mately -6V.
Detailed Description of Hardware
The MAX17113 EV kit contains a step-down switching
regulator, a step-up switching regulator, a positive dual-
stage charge pump, a negative single-stage charge
pump, a dual-mode logic-controlled high-voltage switch
control block, and an adjustable-timing power-good out-
put. Although the MAX17113 IC can operate from input
voltages between +8V and +16.5V, the EV kit is opti-
mized for LCD TV panel and LCD monitor applications
running directly from +12V supplies.
Output Voltage Selection
Step-Down Regulator Output-Voltage
Selection (OUT)
In the default fixed-mode configuration (FB2 pulled to
AGND by R19), the step-down regulator provides a
+3.3V output (OUT). In adjustable mode, the output volt-
age (1.5V to 5V) of the step-down regulator is set by con-
necting a resistive voltage-divider from the output (OUT)
to AGND with the center tap connected to FB2. Calculate
R18 with the following equation:
OUT
FB2
V
R18 R19 1
V
 
= × −
 
 
where V
FB2
, the step-down regulator’s feedback set
point, is 1.25V.
Table 1. Default Jumper Settings
SUPPLIER PHONE WEBSITE
Central Semiconductor Corp. 631-435-1110 www.centralsemi.com
Fairchild Semiconductor 888-522-5372 www.fairchildsemi.com
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
Sumida Corp. 847-545-6700 www.sumida.com
Taiyo Yuden 800-348-2496 www.t-yuden.com
TDK Corp. 847-390-4373 www.component.tdk.com
Toshiba America Electronic Components, Inc. 949-623-2900 www.toshiba.com/taec
Würth Electronik GmbH & Co. KG 201-785-8800 www.we-online.com
JUMPER SHUNT POSITION
JU1 Installed on one pin only
JU2 2-3
JU3 Installed
JU4 Installed
JU5 Installed
JU6 1-2
JU7 2-3
JU8 Installed on one pin only