Evaluates: MAX14727/
MAX14728/MAX14731
MAX14727 Evaluation Kit
General Description
The MAX14727 evaluation kit (EV kit) is a fully assembled
and tested circuit board that demonstrates the MAX14727
dual-input, bidirectional overvoltage protection with automatic path control device. The EV kit comes with the
MAX14727EWV+ installed. To evaluate the MAX14728/
MAX14731, request a sample from Maxim and replace
the MAX14727 with the MAX14728/MAX14731.
Features
●● 3V to 28V Operating Voltage Range
●● LEDs Showing INAOK, INBOK
●● Proven PCB Layout
●● Fully Assembled and Tested
EV Kit Contents
●● EV Kit Board Containing a MAX14727
Ordering Information appears at end of data sheet.
319-100040; Rev 0; 7/17
Quick Start
Required Equipment
●●
MAX14727 EV kit
●●
Two 15V DC power supply
●●
USB Cable or 5V power supply
●●
Multimeter
Procedure
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation:
1) Connect one power supply to INA and one power
supply to INB.
2) Connect voltmeter to OUT.
3) Connect USB cable to J1 or connect 5V power supply
on TP1 to source VIO.
4) Supply 4.5V to INA. Verify OUT is 4.5V and LED1
is on.
5) Increase voltage on INA and verify OUT voltage follows
INA voltage. Keep increasing INA voltage, when INA
reaches OVLO threshold 13.75V, OUT voltage goes
down and LED1 is off.
6) Decrease INA voltage, then OUT comes back to be
the same as INA voltage and LED1 is on. Turn off
INA power supply.
7) Supply 4.5V to INB. Verify OUT is 4.5V an LED2
is on.
8) Increase voltage on INB and verify OUT voltage
follows INB voltage. Keep increasing INB voltage,
when INB reaches OVLO threshold 13.75V, OUT
voltage goes down and LED2 is off.
9) Decrease INB voltage, then OUT comes back to be
the same as INB voltage and LED2 is on.
10) Set INB voltage to 5V and verify OUT is 5V.
11) Set INA voltage to 3V and turn on INA power supply.
Verify OUT is still 5V.
12) Increase INA voltage. Verify when INA goes to about
4.5V, LED1 is on and OUT voltage is the same as
INA voltage.
Evaluates: MAX14727/
MAX14728/MAX14731
MAX14727 Evaluation Kit
Detailed Description
Digital Inputs
The MAX14727 EV kit is a fully assembled and tested
circuit board demonstrating the MAX14727 dual-input,
bidirectional overvoltage protection with automatic path
control device in a 30-bump WLP package.
Use USB cable or external power supply to power digital
inputs. Use JU1, JU4, JU7, and JU8 to control digital
inputs (Table 1).
LEDs
Use JU3, and JU5 to add output capacitor or resistor
(Table 2).
LED1/LED2 turns on when INAOK/INBOK is asserted.
Output Load
Overvoltage Threshold
Use JU9, and JU10 to choose internal or external overvoltage threshold setting (Table 3).
Table 1. JU1, JU4, JU7, JU8 Jumper Setting
JUMPER
SHUNT POSITION
Installed
JU1
PCON is high (no beak before make time)
Not installed*
JU4
JU7
JU8
DESCRIPTION
PCON is low (break before make time enabled)
Installed
EN is high (device disabled)
Not installed*
EN is low (device enabled)
Installed
OTG_ENB high (channel B OTG enabled)
Not installed*
OTG_ENB low (channel B OTG disabled)
Installed
OTG_ENA high (channel A OTG enabled)
Not installed*
OTG_ENA low (channel A OTG disabled)
Table 2. JU3, JU5 Jumper Setting
JUMPER
SHUNT POSITION
Installed
JU3
100µF capacitor is connected to OUT
Not installed*
Installed
JU5
DESCRIPTION
100µF capacitor is not connected to OUT
50Ω resistor is connected to OUT
Not installed*
50Ω resistor is not connected to OUT
*Default position.
Table 3. JU9, JU10 Jumper Setting
JUMPER
SHUNT POSITION
JU9
JU10
DESCRIPTION
1-2
OVLOA is connected to resistor divider. Using external overvoltage threshold.
2-3*
OVLOA is connected to ground. Using internal overvoltage threshold.
1-2
OVLOB is connected to resistor divider. Using external overvoltage threshold.
2-3*
OVLOB is connected to ground. Using internal overvoltage threshold.
*Default position.
Ordering Information
PART
TYPE
MAX14727EVKIT#
EVKIT
#Denotes RoHS compliant.
www.maximintegrated.com
Maxim Integrated │ 2
Evaluates: MAX14727/
MAX14728/MAX14731
MAX14727 Evaluation Kit
MAX14727 EV Kit Bill of Materials
ITEM
REF_DES
DNI/DNP
QTY
1
C1, C8
-
2
2
C2
-
1
3
C3
-
1
4
C5
-
MFG PART #
C0603X5R160-105KNP;
EMK107BJ105KA;
C1608X5R1C105K;
GRM188R61C105K
C0805C475K4PAC;
ECJ-2FB1C475K;
CL21A475KOFNNN
MANUFACTURER
VENKEL LTD./TAIYO YUDEN/
TDK/MURATA
KEMET/PANASONIC/
SAMSUNG ELECTRONICS
T495X107M020ATE100
KEMET
1
GRM21BR61H105KA12
MURATA
KEMET; MURATA; TDK
5
C6, C7
-
2
C0805C104K5RAC;
GRM21BR71H104K;
C2012X7R1H104K085AA
6
J1
-
1
61729-0010BLF
FCI CONNECT
7
JU1, JU3-JU5,
JU7, JU8
-
6
PEC02SAAN
SULLINS
8
JU9, JU10
-
2
PEC03SAAN
SULLINS
9
LED1, LED2
-
2
LG N971-KN-1
OSRAM
10
R1, R7, R8, R10,
R13, R15, R17
-
7
11
R2
-
1
12
R3
-
1
13
R4
-
1
14
R5, R6
-
2
15
R9, R12, R14, R16
-
4
16
R11
-
1
UB5C-50RF1
17
SU1-SU8
-
8
STC02SYAN
18
TB1-TB3
-
3
398800302
19
TP1, TP5, TP6,
TP8, TP15
-
5
5010
20
TP2-TP4,
TP7, TP16
-
5
5011
21
TP9-TP14,
TP17, TP18
-
8
5014
22
U1
-
1
MAX14727EWV+
23
U2
-
1
NC7WZ07P6X
24
U3
-
1
MAX8880EUT+
25
PCB
-
1
MAX14727
MAXIM
26
R18-R21
DNP
0
N/A
N/A
TOTAL
www.maximintegrated.com
CRCW0805100KFK;
RK73H2ATTD1003;
ERJ-6ENF1003V
CRCW080510K0FK;
MCR10EZHF1002;
ERJ-6ENF1002V;
RC0805FR-0710KL
CRCW08056K04FK;
MCR10EZPF6041
RC0805JR-070RL
CRCW0805332RFK;
MCR10EZHF3320
CRCW08051K00FK;
ERJ-6ENF1001V;
MCR10EZHF1001;
RC0805FR-071KL
VALUE
DESCRIPTION
CAPACITOR; SMT; 0603; CERAMIC; 1uF;
16V; 10%; X5R; -55degC to + 85degC;
1UF
0 +/-15% degC MAX.USE 20-0001u-63 FOR
NEW DESIGN
CAPACITOR; SMT; 0805; CERAMIC;
4.7UF
4.7uF; 16V; 10%; X5R; -55degC to + 85degC;
0 +/-15% degC MAX.
CAPACITOR; SMT
(7343-43); TANTALUM CHIP;
100UF
100UF; 20V; TOL=20%; TG=-55 DEGC TO
+125 DEGC; AUTO; LOW ESR
CAPACITOR; SMT (0805); CERAMIC CHIP;
1UF
1UF; 50V; TOL=10%; MODEL=GRM SERIES;
TG=-55 DEGC TO +85 DEGC; TC=X5R
CAPACITOR; SMT (0805); CERAMIC CHIP;
0.1UF
0.1UF; 50V; TOL=10%; MODEL=; TG=-55
DEGC TO +125 DEGC; TC=X7R;
CONNECTOR; FEMALE; THROUGH-HOLE;
61729-0010BLF UNIVERSAL SERIES BUS B-TYPE
CONNECTOR; RIGHT ANGLE; 4PINS
CONNECTOR; MALE; THROUGH HOLE;
PEC02SAAN
BREAKAWAY; STRAIGHT; 2PINS
CONNECTOR; MALE; THROUGH HOLE;
PEC03SAAN
BREAKAWAY; STRAIGHT; 3PINS
DIODE; LED; SMT (1206); PIV=2.6V;
LG N971-KN-1
IF=0.025A; -30 DEGC TO +85 DEGC; GREEN
VISHAY DALE/KOA SPEER/
PANASONIC
100K
RESISTOR; 0805; 100K;
1%; 100PPM; 0.125W; THICK FILM
GENERIC PART
10K
RESISTOR; 0805; 10K;
1%; 100PPM; 0.125W; THICK FILM
VISHAY DALE/ROHM
YAGEO PHYCOMP
6.04K
0
VISHAY DALE/ROHM
332
VISHAY DALE; PANASONIC;
ROHM; YAGEO
1K
RESISTOR; 0805; 6.04K;
1%; 100PPM; 0.125W; THICK FILM
RESISTOR; 0805; 0 OHM;
5%; JUMPER; 0.125W; THICK FILM
RESISTOR; 0805; 332 OHM;
1%; 100PPM; 0.125W; THICK FILM
RESISTOR; 0805; 1K;
1%; 100PPM; 0.125W; THICK FILM
RESISTOR; THROUGH HOLE-AXIAL LEAD;
50R OHM; 1%; 20PPM; 5W; SILICON
COATED WIREWOUND
TEST POINT; JUMPER; STR;
TOTAL LENGTH=0.256IN; BLACK;
SULLINS ELECTRONICS CORP. STC02SYAN
INSULATION=PBT CONTACT=PHOSPHOR
BRONZE; COPPER PLATED TIN OVERALL
CONNECTOR; FEMALE;
THROUGH HOLE; 5.08/.200 EUROSTYLE
MOLEX
398800302
LOW; SINGLE ROW FIXED BLOCK; RIGHT
ANGLE; 2PINS
TESTPOINT WITH 1.80MM
Keystone
5010
HOLE DIA, RED, MULTIPURPOSE
TEST POINT; PIN DIA=0.125IN;
TOTAL LENGTH=0.445IN; BOARD
Keystone
5011
HOLE=0.063IN; BLACK; PHOSPHOR
BRONZE WIRE SILVER PLATE FINISH;
TEST POINT; PIN DIA=0.125IN;
TOTAL LENGTH=0.445IN; BOARD
Keystone
5014
HOLE=0.063IN; YELLOW; PHOSPHOR
BRONZE WIRE SILVER PLATE FINISH;
IC; PROT; 13.75V OVLO; DUAL INPUT;
BIRECTIONAL OVERVOLTAGE
MAXIM
MAX14727EWV+
PROTECTOR WITH AUTOMATIC PATH
CONTROL; WLP30 2.537X2.197
IC; BUF; TINY LOGIC ULTRA-HIGH SPEED
FAIRCHILD SEMICONDUCTOR NC7WZ07P6X
DUAL BUFFER; SC70-6
IC; VREG; ULTRA-LOW-IQ LOW-DROPOUT
MAXIM
MAX8880EUT+
LINEAR REGULATOR WITH POK; SOT23-6
RIEDON INC
50
PCB
OPEN
PCB:MAX14727
-
PACKAGE OUTLINE 0805 RESISTOR
68
Maxim Integrated │ 3
J1
61729-0010BLF
TP2
GND
TP3
398800302
INB
GND
TB2
TP4
398800302
INA
GND
TB1
S1
S2
1
2
3
4
VBUS
D-
D+
GND
2
1
TP6
INB
1
2
C1
1UF
IN
IN
R1
100K
TP1
VBUS
INB
INA
5
1
1
2
3
1
2
3
FB
OUT
GND
SHDN POK
IN
6
3
4
TP15
VIO VIO
OPEN
OPEN
R19
R18
OPEN
U3
MAX8880EUT+
JU10
JU9
R20
OPEN
R21
OVLOA IN
IN
IN
IN
IN
100K
1K
JU8
R9
C7
0.1UF
IN
6.04K
OTG_ENA
VIO
INB
OVLOA TP13
OVLOB TP14
OTG_ENA
OTG_ENB
PCON
EN#
C6
0.1UF
R10
C2
4.7UF
OVLOB IN
INB
INA
IN
10K
R3
R2
0
R4
IN
IN
INA
1
2
INB
INB
INB
INB
INB
IN
OVLOB
OVLOA
EN
PCON
OTG_ENB
OTG_ENA
INA
INA
INA
INA
INA
TP11
A4
A5
B5
C5
D5
C3
D3
E2
E5
E3
D4
A2
A3
B2
C2
D2
GND
OTG_ENA
VIO
INBOK
INAOK
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OTG_ENB
U1
MAX14727EWV+
GND
TP5
INA
GND
100K
R17
1K
JU7
R16
E1
E6
A1
A6
B1
B6
C1
C6
D1
D6
IN
TP12
TP17
INAOK#
INAOK#
1
2
INAOK#
INBOK#
OUT
TP18
INBOK#
IN
IN
C5
1UF
IN
IN
2A
1A
OTG_ENB
3
1
100K
100K
R8
R7
100K
R13
1K
JU4
R12
GND
VCC
TP16
1
2
1
2
1
2
R5
332
C3 100UF
+
R11 50
TP9
EN#
6
4
1Y
2Y
U2
NC7WZ07P6X
VIO
JU3
JU5
1-2 DISABLE
VIO
IN
R6
332
OUT
EN#
LED2
INBOK
VIO
IN
LED1
INAOK
TB3
100K
R15
1K
JU1
R14
TP7
1
2
OUT
GND
398800302
C8
1UF
1
2
TP8
OUT
1-2 NO 8MS BBM
C
A
H1
H2
H3
H4
MTHOLE MTHOLE MTHOLE MTHOLE
6
5
GND
B3
B4
C4
E4
5
2
C
A
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2
TP10
PCON
IN
PCON
MAX14727 Evaluation Kit
Evaluates: MAX14727/
MAX14728/MAX14731
MAX14727 EV Kit Schematic
Maxim Integrated │ 4
MAX14727 Evaluation Kit
Evaluates: MAX14727/
MAX14728/MAX14731
MAX14727 EV Kit PCB Layout Diagrams
1”
MAX14727 EV Kit—Top Silkscreen
1”
MAX14727 EV Kit—Top
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Maxim Integrated │ 5
MAX14727 Evaluation Kit
Evaluates: MAX14727/
MAX14728/MAX14731
MAX14727 EV Kit PCB Layout Diagrams (continued)
1”
MAX14727 EV Kit—Inner Layer2
1”
MAX14727 EV Kit—Inner Layer3
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Maxim Integrated │ 6
MAX14727 Evaluation Kit
Evaluates: MAX14727/
MAX14728/MAX14731
MAX14727 EV Kit PCB Layout Diagrams (continued)
1”
MAX14727 EV Kit—Bottom
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Maxim Integrated │ 7
Evaluates: MAX14727/
MAX14728/MAX14731
MAX14727 Evaluation Kit
Revision History
REVISION
NUMBER
REVISION
DATE
0
7/17
DESCRIPTION
Initial release
PAGES
CHANGED
—
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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