19-4521; Rev 1; 11/09
MAX14529E Evaluation Kit
General Description
The MAX14529E evaluation kit (EV kit) is a fully assem-
bled and tested circuit board that contains all the com-
ponents necessary to evaluate the MAX14529E IC. The
MAX14529E is an overvoltage-protection device with a
low dropout (LDO) regulator, ESD protection, and USB
charger detection. The EV kit operates from the 5V DC
available from the USB VBUS and the 3.3V pullup avail-
able from the system input/output voltage (VIO).
Features
o
5V Supply Operation from USB VBUS
o
3.3V Pullup from Application System’s VIO or VPU
o
5.75V Overvoltage-Protection Trip Level
o
100mA, 3.3V LDO Output
o
High-Current USB Charger Detection
o
Evaluates the MAX14529E in 12-Bump WLP
Package
o
Fully Assembled and Tested
Evaluates: MAX14529E
Ordering Information
PART
MAX14529EEVKIT+
TYPE
EV Kit
+Denotes
lead(Pb)-free and RoHS compliant.
Component List
DESIGNATION QTY
DESCRIPTION
1µF ±10%, 50V X7R ceramic
capacitor (1206)
Murata GRM31MR71H105K or
TDK C3216X7R1H105K
1µF ±10%, 10V X5R ceramic
capacitor (0603)
Murata GRM188R61A105K or
TDK C1608X5R1A105K
0.1µF ±10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H104K or
TDK C1608X7R1H104K
DESIGNATION QTY
JU1, JU2
JU3, JU4
P1
R1–R4
R5
U1
—
—
2
2
1
4
1
1
4
1
DESCRIPTION
3-pin headers
2-pin headers
USB type-AB right-angle mini jack
10kΩ ±5% resistors (0603)
1.5kΩ ±5% resistor (0603)
Overvoltage protector (12 WLP)
Maxim MAX14529EEWC+
(Top Mark: AAP)
Shunts (JU1–JU4)
PCB: MAX14529E EVALUATION KIT+
C1
1
C2
1
C3
1
Component Suppliers
SUPPLIER
Murata Electronics North America, Inc.
TDK Corp.
PHONE
770-436-1300
847-803-6100
WEBSITE
www.murata-northamerica.com
www.component.tdk.com
Note:
Indicate that you are using the MAX14529E when contacting these component suppliers.
________________________________________________________________
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.
MAX14529E Evaluation Kit
Evaluates: MAX14529E
Quick Start
Required Equipment
•
•
•
•
MAX14529E EV kit
2.2V to 6V, 100mA DC power supply (VBUS)
3.3V, 100mA DC power supply for +3V3
Voltmeter
18) Verify that the
CDET
PCB pad is at 0V.
19) Increase the VBUS power-supply output to 6V.
20) Verify that the
VOK
PCB pad is at 3.3V.
21) Verify that the OUT PCB pad is at 0V.
22) Verify that the LOUT PCB pad is at 0V.
Detailed Description of Hardware
Procedure
The MAX14529E EV kit contains the MAX14529E, an
overvoltage-protection device with a low dropout (LDO)
regulator, ESD protection, and USB charger detection.
The EV kit operates from the 5V DC available from the
USB VBUS. The EV kit’s logic inputs and outputs can
be pulled up by the input/output voltage (VIO) available
from the application system.
The MAX14529E 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) Verify that a shunt is installed on pins 2-3 of jumper
JU1 (overvoltage protection enabled).
2) Verify that a shunt is installed on pins 2-3 of jumper
JU2 (low dropout enabled).
3) Verify that a shunt is not installed on jumper JU3
(VPU not connected to +3V3).
4) Verify that a shunt is not installed on jumper JU4
(no charger connected).
5) Set the VBUS power supply to provide 5V and dis-
able the power supply.
6) Set the +3V3 power supply to 3.3V and disable the
power supply.
7) Connect the VBUS power-supply positive terminal
to the VBUS PCB pad.
8) Connect the VBUS power-supply ground to the
GND PCB pad (near the VBUS PCB pad).
9) Connect the +3V3 power-supply positive terminal to
the +3V3 PCB pad.
10) Connect the +3V3 power-supply ground to the
GND PCB pad (any nearby GND PCB pad).
11) Enable both power supplies.
12) Verify that the OUT PCB pad is at 5V.
13) Verify that the LOUT PCB pad is at 3.3V.
14) Verify that the
VOK
PCB pad is at 0V.
15) Connect the D- PCB pad to ground, and verify that
the
CDET
PCB pad is at 3.3V.
16) Disconnect the D- PCB pad from ground, and install
a shunt on jumper JU3 (VPU connected to +3V3).
17) Install a shunt on jumper JU4 (D- connected to D+,
simulate charger connected).
Application System Interface
The MAX14529E EV kit features a USB jack and PCB
pads that allow convenient interfacing between the
USB port and the application system. Connect the USB
cable to the USB type-AB mini jack on the MAX14529E
EV kit. Connect the system charger to the OUT and
GND PCB pads. Connect the USB transceiver signals
to the D+ and D- PCB pads, and the USB transceiver
input/output voltage (VIO or VPU) to the VPU PCB pad.
Connect the USB transceiver VCC to the LOUT PCB
pad. Connect the
OEN, LEN, VOK,
and
CDET
PCB
pads to the appropriate locations in the system micro-
processor circuit.
Jumper Selection
Overvoltage-Protection Enable,
OEN
(JU1)
The MAX14529E EV kit provides jumper JU1 to enable
or disable the overvoltage-protection function in the
MAX14529E IC, thus preventing damage to the protect-
ed components. Table 1 lists the options to enable or
disable the overvoltage-protection function in the
MAX14529E IC.
Table 1. JU1 Jumper Functions (OEN)
SHUNT
POSITION
1-2
2-3*
OEN
PIN
CONNECTED TO
+3V3
(through resistor R1)
GND
MAX14529E
OVERVOLTAGE
PROTECTION
Disabled
Enabled
*Default
position.
2
_______________________________________________________________________________________
MAX14529E Evaluation Kit
Table 2. JU2 Jumper Functions (LEN)
SHUNT
POSITION
1-2
2-3*
LEN
PIN
CONNECTED TO
+3V3
(through resistor R2)
GND
MAX14529E LDO
REGULATOR OUTPUT
Disabled
Enabled
Low Dropout Enable,
LEN
(JU2)
The MAX14529E EV kit provides jumper JU2 to enable
or disable the LDO regulator in the MAX14529E IC.
Table 2 lists the options to enable or disable the LDO
regulator in the MAX14529E IC.
Charger Simulation Pullup Voltage, VPU (JU3)
The MAX14529E EV kit provides jumper JU3 to connect
the charger simulation pullup voltage (VPU) to the
MAX14529E EV kit pullup voltage (3.3V). Table 3 lists
the jumper options for jumper JU3.
Charger Simulation Mode, D- and D+ (JU4)
The MAX14529E EV kit provides jumper JU4 to short
the USB D- and D+ data lines that simulate a charger-
connected condition. Table 4 lists the jumper options
for jumper JU4.
Evaluates: MAX14529E
*Default
position.
Table 3. JU3 Jumper Functions
(VPU and +3V3)
SHUNT
POSITION
Installed
Not
installed*
VPU PAD AND
+3V3 PAD
Connected
Not connected
CHARGER
SIMULATION PULLUP
(VPU) CONNECTED TO
+3V3
External pullup voltage
required for VPU
*Default
position.
Table 4. JU4 Jumper Functions
(D- and D+)
SHUNT
POSITION
Installed
Not
installed*
D- AND D+ PAD
Connected
Not connected
CHARGER
SIMULATION MODE
Charger connected
No charger connected
*Default
position.
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3
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