Evaluate: MAX20067
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
General Description
The MAX20067 evaluation kit (EV kit) is a fully assembled
and tested surface-mount PCB that provides the voltages
and features required for automotive thin-film transistor
(TFT), liquid-crystal display (LCD) applications. The EV
kit includes a synchronous boost converter, double-stage
positive charge pump, double-stage negative charge
pump, VCOM buffer, and gate-shading push-pull switch.
The EV kit can operate from 2.7V to 5.5V input voltages
and is optimized for automotive TFT-LCD applications.
The EV kit can be configured to operate in stand-alone
mode or in I2C mode. The boost converter is configured
for a 12V output that provides at least 200mA. The positive-gate voltage regulator provides 16V output and the
negative-gate voltage regulator provides -6V. The VCOM
buffer provides an I2C-adjustable output voltage initially
biased at 6V.
The EV kit provides an I2C interface that can operate in conjunction with the MINIQUSB+ adapter board or a third-party
I2C master, such as a general-purpose microcontroller. The
EV kit also includes Windows®-compatible software that
provides a simple graphical user interface (GUI) for exercising the features of the IC. The EV system includes both the
EV kit and the MINIQUSB+ adapter board.
Benefits and Features
●● 2.7V to 5.5V Input Range
●● Default Output Voltage
• 12V Output at 200mA, (Boost Converter)
• 16V Output at 10mA (Positive-Gate Voltage Regulator)
• -6V Output at 3mA (Negative-Gate Voltage Regulator)
• 6V Output at 130mA (VCOM Buffer)
●● Selectable Switching Frequency (2.2MHz or 400kHz)
with Spread-Spectrum Option
●● Double-Stage Positive- and Negative-Regulated
Charge Pumps
●● Gate Shading Enabled
●● Full Sequencing Flexibility
●● I2C Programmability
●● Dedicated GUI
●● C Driver Available
●● Proven PCB Layout
●● Fully Assembled and Tested
Ordering Information appears at end of data sheet.
Windows is a registered trademark and registered service mark of Microsoft Corporation.
319-100065; Rev 0; 8/17
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
I2C Mode
MAX20067 EV Kit Files
FILE
MAX20067GUISetupVxx.exe
Evaluate: MAX20067
DECRIPTION
Windows GUI Installer
1) Visit
www.maximintegrated/evkitsoftware
to
download the latest version of the EV kit software,
MAX20067GUISetupVxx.exe.
Required Equipment
2) Install the EV kit software (GUI) on your PC by
running the MAX20067GUISetupVxx.exe program.
The EV kit software application will be installed together
with the required MINIQUSB+ drivers.
●● 2.7V to 5.5V, 3A power supply
3) Verify that shunts are installed across pins 1-2 on
jumpers J1–J3 and J5–J9.
Quick Start
●● MAX20067 EV kit
●● Voltmeter
●● MINIQUSB+ interface board with USB cable
4) Verify that a shunt is installed across pins 2-3 on
jumper J4.
●● User-supplied Windows-compatible PC with a spare
USB port
5) Connect the MINIQUSB+ interface board’s P3 header
to the J10 header on the EV kit.
Note: In the following sections, software-related items are
identified by bolding. Text in bold refers to items directly
from the EV kit software. Text in bold and underlined
refers to items from the Windows operating system.
6) Connect the positive terminal of the power supply to
the TFT_POWER_IN PCB pad. Connect the negative
terminal of the power supply to the PGND PCB pad.
Procedure
8) Turn on the power supply.
7) Set the power-supply TFT_POWER_IN to 5V.
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation:
9) Verify that the green LED (DS1) is on.
Manual Mode
11) From the EV kit software toolbar, select Device →
Scan for Address. The GUI scans the I2C bus for
available slave addresses on the bus and selects the
first one (in this case, the MAX20067 I2C address).
Press OK once the MAX20067 I2C address has been
found.
1) Verify that shunts are installed across pins 1-2 on
jumpers J1–J9.
2) Connect the positive terminal of the power supply
to the TFT_POWER_IN PCB pad and the negative
terminal to the PGND PCB pad.
3) Set the power-supply TFT_POWER_IN to 5V.
4) Turn on the power supply.
5) Verify that the green LED (DS1) is on.
6) Verify that the boost converter (AVDD PCB pad) is
12V.
7) Verify that the VCOM buffer (VCOM PCB pad)
regulator is 6V.
8) Verify that the positive-gate voltage regulator (VGON
PCB pad) is approximately +16V.
9) Verify that the negative-gate voltage regulator
(VGOFF PCB pad) is approximately -6V.
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10) Launch the EV kit software application.
12) Verify that the status bar in the bottom-right corner
of the GUI displays EV Kit: Connected, as shown in
Figure 1.
13) In the 0x02 REGULATORS CONTROL register group
box, check in order: EN_BST, EN_AVDD, EN_VGON,
EN_VGOFF, and click the Read All button.
14) In the 0x03 REGULATORS POWER STATUS (Read
Only) register group box, verify that the BST_ON,
AVDD_ON, VGON_ON, VGOFF_ON, and VCOM_
ON indicators are green.
15) For more details on how to use the GUI and all the
features available, click on the GUI Help menu item.
Maxim Integrated │ 2
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Evaluate: MAX20067
Figure 1. MAX20067 Evaluation Kit Software (GUI)
www.maximintegrated.com
Maxim Integrated │ 3
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Detailed Description of Hardware
Evaluate: MAX20067
Power LED Enable (J3)
Jumper Settings
Several jumper settings in the following tables illustrate
features of the MAX20067 EV kit.
A green LED (DS1) is used to indicate that the EV kit
is powered on. The LED can be disconnected from
the power supply, allowing precise current-consumption
evaluation. See Table 3 for shunt positions.
Digital Domain Voltage (J1)
Supply Sequencing (J4)
The EV kit exposes digital outputs (FLT, SDA, and SCL)
that are referred to as the “digital domain voltage.”
Digital domain voltage can be selected between the
TFT_POWER_IN voltage and the fixed 3.3V provided by
the MINQUSB+. Alternatively, you can force an external
voltage as digital reference (see Table 1).
The IC can be used either in stand-alone mode or I2C
mode, selectable through jumper J4 settings. When the
IC is used in stand-alone mode, two different supply
sequencing options are available. Refer to the MAX20067
IC data sheet for more details on the supply sequencing
options. See Table 4 for shunt positions.
I2C Slave Address (J2)
Enable (J5)
The IC’s 7-bit I2C slave address can be selected between
two options through the J2 jumper setting (see Table 2).
Note: Do not leave J2 open.
Table 1. Jumper Functions (J1)
SHUNT POSITION
DIGITAL DOMAIN
1-2*
TFT_POWER_IN
2-3
3.3V (with MINIQUSB+ connected)
Open
Externally provided (J1 pin 2)
*Default position.
Table 2. Jumper Functions (J2)
SHUNT POSITION
7-BIT I2C SLAVE ADDRESS
1-2*
0x28
2-3
0x20
*Default position.
1-2*
Open
Table 4. Jumper Functions (J4)
SHUNT POSITION
SUPPLY SEQUENCING
1-2*
Stand-alone mode (Sequencing
Option 1)
2-3
I2C mode
Open
Stand-alone mode (Sequencing
Option 2)
*Default position.
Table 5. Jumper Functions (J5)
SHUNT POSITION
Table 3. Jumper Functions (J3)
SHUNT POSITION
When operating in stand-alone mode, the IC can be
disabled acting on the ENP pin, reducing the current
consumption at its minimum value. Furthermore, an
external digital signal can be used to enable/disable the
IC (see Table 5).
DS1 POWER LED
Connected
Disconnected
MAX20067
1-2*
Enabled
2-3
Disabled
Open
Externally controlled through digital
signal (J5, pin 2)
*Default position.
*Default position.
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Maxim Integrated │ 4
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Evaluate: MAX20067
Gate-Shading Mode (J6)
Gate-Shading High-Level Voltage (J9)
The IC provides the option to delay the fall of the GATES
output. The delay con be adjusted by an external capacitor (C1). If not required, delay can be disabled through J6
jumper setting (see Table 6). Note: Do not leave J6 open.
Gate-shading high-level voltage can be set externally with
a reference voltage, or the output of the positive-gate
voltage regulator can be used (VGON). See Table 9 for
shunt positions.
VCOM Buffer Supply (J7)
Output-Voltage Selection
The IC provides a 130mA-capable VCOM buffer. The
VCOM buffer can be supplied directly with the switched
output of the boost converter (AVDD), or through an external power source. See Table 7 for shunt positions.
Gate-Shading Low-Level Voltage (J8)
Gate-shading low-level voltage can be set externally with
a reference voltage, or the switched output of the boost
converter can be used (AVDD). See Table 8 for shunt
positions.
Table 6. Jumper Functions (J6)
SHUNT POSITION
GATE-SHADING MODE
1-2*
No delay
2-3
1.75µs
*Default position.
SHUNT POSITION
Open
The EV kit’s boost-converter output (HVINP and AVDD)
is set to 12V by feedback resistors R10, R3, and R4. To
generate output voltages other than 12V, select R10 + R3
in the 10kΩ to 50kΩ range, and select R4 according to the
following equation:
V
R4 = (R10 + R3) × HVINP − 1
1.25
where VHVINP is the desired boost output voltage. When
increasing the boost output voltage, be careful not to
exceed the maximum allowed voltage (18V).
Table 9. Jumper Functions (J9)
SHUNT POSITION
Table 7. Jumper Functions (J7)
1-2*
Boost Converter
VCOM POWER SUPPLY
AVDD
1-2*
Open
GATE-SHADING
HIGH-LEVEL VOLTAGE
VGON
Externally provided (SRC PCB pad)
*Default position.
Externally provided (VCOMP PCB pad)
*Default position.
Table 8. Jumper Functions (J8)
SHUNT
POSITION
1-2*
Open
GATE-SHADING
LOW-LEVEL VOLTAGE
AVDD
Externally provided (DRN PCB pad)
*Default position.
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Maxim Integrated │ 5
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Evaluate: MAX20067
Positive-Gate Voltage Regulator
VCOM Buffer
The EV kit’s positive-gate voltage regulator output (VGON)
is set to 16V by feedback resistors R22 and R20. To generate output voltages other than 16V, select R22 in the 10kΩ
to 50kΩ range, and select R20 according to the following
equation:
When the IC is operating in stand-alone mode, the voltage applied on the VCINH PCB pad sets the VCOM buffer
output voltage. VCINH is internally biased to VCOMP/2.
To generate output voltages other than VCOMP/2, select
R15 in the 10kΩ to 50kΩ range, and select R16 according
to the following equation:
V
R20 =
(R22) × VGON − 1
1.25
where VVGON is the desired positive-gate voltage regulator output. When increasing the positive-gate voltage
regulator output, be careful not to exceed the maximum
allowed voltage (36V).
Negative-Gate Voltage Regulator
The EV kit’s negative-gate voltage regulator (VGOFF) is
set to -6V by feedback resistors R12 and R21. To generate output voltages other than -6V, select R12 in the 10kΩ
to 50kΩ range, and select R21 according to the following
equation:
R21 = (R12) × (0.25 − V VGOFF )
where VVGOFF is the desired negative-gate voltage regulator output. When decreasing the negative-gate voltage
regulator output, be careful not to exceed the minimum
allowed voltage (-24V).
www.maximintegrated.com
V
R16 =
R15 × VCOMP − 1
V
VCOM
where VVCOM is the desired VCOM buffer output voltage
and VVCOMP is the VCOM buffer supply voltage.
To guarantee VCOM stability, the C6 capacitor may need
to be increased to 1nF when VCOM voltage is adjusted
through external resistors. If the IC is used in I2C mode,
the VCOM buffer output voltage can be adjusted through
I2C within a range of VVCINH ± 2.5V.
Ordering Information
PART
TYPE
MAX20067EVKIT#
EV Kit
MAX20067EVSYS#
EV System
#Denotes RoHS compliant.
Maxim Integrated │ 6
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Evaluate: MAX20067
MAX20067 EV Kit Bill of Materials
REF_DES
QTY VALUE
DNI/
DNP*
C1
1
100PF
―
C2, C4, C5, C7, C27
5
10UF
―
C3
1
1UF
―
C6, C11
2
100PF
―
C8
1
4.7UF
―
C9, C10, C15, C19, C22, C24, C28
7
0.1UF
―
C12, C25
2
2.2UF
―
C13
1
0.01UF
―
C14, C18, C29, C31
4
0.1UF
―
C16, C23
2
1UF
―
C17
1
10UF
―
C20
1
0.022UF
―
C21
1
1UF
―
C26
0
100PF
C30
0
2.2UF
C35
1
0.22UF
www.maximintegrated.com
DESCRIPTION
CAPACITOR; SMT; 0603; CERAMIC;
100pF; 50V; 10%; X7R; -55degC to +
125degC; +/-15% from -55degC to
+125degC
CAPACITOR; SMT (0603); CERAMIC
CHIP; 10UF; 6.3V; TOL=20%;
MODEL=CL SERIES; TG=-55 DEGC
TO +125 DEGC; TC=X7R
CAPACITOR; SMT (0603); CERAMIC
CHIP; 1UF; 25V; TOL=20%; TG=-55
DEGC TO +85 DEGC; TC=X5R
CAPACITOR; SMT (0603); CERAMIC
CHIP; 100PF; 16V; TOL=10%; TG=-55
DEGC TO +125 DEGC; TC=X7R
CAPACITOR; SMT (0805); CERAMIC
CHIP; 4.7UF; 50V; TOL=10%;
MODEL=; TG=-55 DEGC TO +85
DEGC; TC=X5R
CAPACITOR; SMT (0603); CERAMIC
CHIP; 0.1UF; 100V; TOL=10%; TG=-55
DEGC TO +125 DEGC; TC=X7R
CAPACITOR; SMT (0603); CERAMIC
CHIP; 2.2UF; 50V; TOL=10%; TG=-55
DEGC TO +85 DEGC; TC=X5R
CAPACITOR; SMT; 0603; CERAMIC;
0.01uF; 50V; 10%; X7R; -55degC to +
125degC
CAPACITOR; SMT (0603); CERAMIC
CHIP; 0.1UF; 10V; TOL=10%;
MODEL=C0603 SERIES; TG=-55
DEGC TO +125 DEGC; TC=X7R
CAPACITOR; SMT (0603); CERAMIC
CHIP; 1UF; 50V; TOL=10%;
MODEL=_MK SERIES; TG=-55 DEGC
TO +85 DEGC
CAPACITOR; SMT (1210); CERAMIC
CHIP; 10UF; 25V; TOL=20%; MODEL=;
TG=-55 DEGC TO +125 DEGC;
TC=X7R;
CAPACITOR; SMT (0603); CERAMIC
CHIP; 0.022UF; 25V; TOL=10%;
MODEL=GRM SERIES; TG=-55 DEGC
TO +125 DEGC; TC=X7R
CAPACITOR; SMT (0603); CERAMIC
CHIP; 1UF; 25V; TOL=10%; TG=-55
DEGC TO +125 DEGC; TC=X7R
MFG PART #
MFG
C0603C101J5RAC
KEMET
CL10B106MQ8NRN
SAMSUNG
ELECTRONICS
C1608X5R1E105M
TDK
0603YC101KAT2A
AVX
C2012X5R1H475K125AB
TDK
GRM188R72A104KA35;
CC0603KRX7R0BB104
MURATA; TDK
GRM188R61H225KE11
MURATA
C0603C103K5RAC;
KEMET/MURATA/V
GRM188R71H103K;C0603
ENKEL LTD.
X7R500-103KNE
C0603C104K8RAC
KEMET
UMK107BJ105KA-T;
TAIYO YUDEN;
C1608X5R1H105K080AB;
TDK; SAMSUNG;
CL10A105KB8NNN;
MURATA
GRM188R61H105KAAL
C1210C106M3RAC;
GRM32DR71E106M;
C3225X7R1E106M250AC
KEMET; MURATA;
TDK
GRM188R71E223K
MURATA
GRM188R71E105KA12D;
CGA3E1X7R1E105K;
TMK107B7105KA;
06033C105KAT2A
MURATA; TDK;
TAIYO YUDEN; AVX
CAPACITOR; SMT (0603); CERAMIC
DNP CHIP; 100PF; 16V; TOL=10%; TG=-55 0603YC101KAT2A
DEGC TO +125 DEGC; TC=X7R
CAPACITOR; SMT (0603); CERAMIC
DNP CHIP; 2.2UF; 50V; TOL=10%; TG=-55 GRM188R61H225KE11
DEGC TO +85 DEGC; TC=X5R
CAPACITOR; SMT (0603); CERAMIC
― CHIP; 0.22UF ; 10V; TOL=10%; TG=-55 CC0603KRX7R6BB224
DEGC TO +125 DEGC; TC=X7R
AVX
MURATA
YAGEO
Maxim Integrated │ 7
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Evaluate: MAX20067
MAX20067 EV Kit Bill of Materials (continued)
REF_DES
QTY VALUE
CTL, DRN, ENP, FLT, SCL, SDA,
SRC, AGND, AVDD, PGND,
VCOM, VGON, AGND1, AGND2,
GATES, HVINP, PGND1, PGND2,
VCINH, VCOMP, VGOFF,
TFT_POWER_IN,
FILTERED_AVDD,
TFT_POWER_IN_FILTERED
24
MAXIMPAD
D1-D4
4
MMBD4148SE
D5
0
MBR120VLSFT1G
DS1
1
LTST-C170GKT
DS2
1
LTST-C170EKT
J1, J2, J4-J6
5
PEC03SAAN
J3, J7-J9
4
PBC02SAAN
J10
1
PPTC102LJBN-RC
L1
1
1UH
L2
1
10UH
L3
0
1UH
R1, R2
2
1K
R3
1
10.5K
R4
1
91K
R5, R6, R9
3
10K
www.maximintegrated.com
DNI/
DNP*
―
DESCRIPTION
EVK KIT PARTS; MAXIM PAD; WIRE;
NATURAL; SOLID; WEICO WIRE;
SOFT DRAWN BUS TYPE-S; 20AWG
DIODE; SS; SMT (SOT-23); PIV=100V;
IF=0.2A
DIODE; SCH; SMT (SOD-123LF);
DNP
PIV=20V; IF=1.0A
DIODE; LED; STANDARD; GREEN;
―
SMT (0805); PIV=2.1V; IF=0.01A
DIODE; LED; STANDARD; RED; SMT
―
(0805); PIV=2.0V; IF=0.02A
EVKIT PART-CONNECTOR; MALE;
THROUGH HOLE; BREAKAWAY;
―
STRAIGHT; 3PINS; -65 DEGC TO +125
DEGC;
EVKIT PART-CONNECTOR; MALE;
THROUGH HOLE; BREAKAWAY;
―
STRAIGHT; 2PINS; -65 DEGC TO +125
DEGC;
―
―
9020 BUSS
MMBD4148SE
MBR120VLSFT1G
LTST-C170GKT
LTST-C170EKT
MFG
WEICO WIRE
FAIRCHILD
SEMICONDUCTOR
ON
SEMICONDUCTOR
LITE-ON
ELECTRONICS INC
LITE-ON
ELECTRONICS INC
PEC03SAAN
SULLINS
ELECTRONICS
CORP.
PBC02SAAN
SULLINS
ELECTRONICS
CORP.
EVKIT PART-CONNECTOR; FEMALE;
TH; DOUBLE ROW; 2.54MM; RIGHT
PPTC102LJBN-RC
ANGLE SOLDER TAIL; MATING PIN
DIA 0.76MM; RIGHT ANGLE; 20PINS;
INDUCTOR; SMT; MAGNETICALLY
SHIELDED FERRITE BOBBIN CORE;
1UH; TOL=+/-20%; 3.4A
INDUCTOR; SMT; FERRITE CORE;
―
10UH; TOL=+/-20%; 1.3A
INDUCTOR; SMT (1008); CERAMIC
DNP CHIP; 1UH; TOL=+/-5%; 0.37A; -40
DEGC TO +125 DEGC
RESISTOR; 0603; 1K OHM; 1%;
―
100PPM; 0.10W; THICK FILM
RESISTOR; 0603; 10.5K OHM; 1%;
―
100PPM; 0.063W; THICK FILM
RESISTOR; 0603; 91K OHM; 1%;
―
100PPM; 0.10W; THICK FILM
RESISTOR; 0603; 10K OHM; 1%;
―
100PPM; 0.1W; THICK FILM
―
MFG PART #
SULLINS
ELECTRONICS
CORP.
ELL-6SH1R0M
PANASONIC
LPS6225-103MR
COILCRAFT
1008HS-102TJL; MDT2520COILCRAFT
CR1R0M
CR0603-FX-1001ELF
BOURNS
CR0603-16W-1052FT
VENKEL LTD.
CRCW060391K0FK
VISHAY DALE
CRG0603F10K
TE CONNECTIVITY
Maxim Integrated │ 8
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Evaluate: MAX20067
MAX20067 EV Kit Bill of Materials (continued)
REF_DES
QTY VALUE
DNI/
DNP*
DESCRIPTION
MFG PART #
MFG
R5, R6, R9
3
10K
―
RESISTOR; 0603; 10K OHM; 1%;
100PPM; 0.1W; THICK FILM
CRG0603F10K
TE CONNECTIVITY
R7
1
10
―
RESISTOR; 0603; 10 OHM; 1%;
100PPM; 0.1W; THICK FILM
ERJ-3EKF10R0
PANASONIC
R8, R14
2
0
―
ANY
ANY
R10
1
82
―
ERJ3EKF82R0
PANASONIC
R11
0
91K
DNP
CRCW060391K0FK
VISHAY DALE
R12
1
16K
―
ERJPA3F1602
PANASONIC
R13, R18
0
0
DNP
N/A
N/A
R15, R16
0
10K
DNP
CRG0603F10K
TE CONNECTIVITY
R17
1
180
―
CRCW0603180RFK
VISHAY DALE
R19
0
10
DNP
ERJ-3EKF10R0
PANASONIC
R20
1
200K
―
CRCW06032003FK
VISHAY DALE
R21
1
100K
―
ERJ3EKF1003
PANASONIC
R22
1
16.9K
―
ERJ-3EKF1692V;
RC0603FR-0716K9
PANASONIC/YAGE
O PHYCOMP
R25, R26
2
1.5K
―
CRCW06031K50FK
VISHAY DALE
U1
1
MAX20067
―
MAX20067
MAXIM
―
1
―
―
PCB: MAX20067
MAXIM
TOTAL
RESISTOR; 0603; 0 OHM; 0%;
JUMPER; 0.10W; THICK FILM;
FORMFACTOR
RESISTOR; 0603; 82 OHM; 1%;
100PPM; 0.1W; THICK FILM
RESISTOR; 0603; 91K OHM; 1%;
100PPM; 0.10W; THICK FILM
RESISTOR; 0603; 16K OHM; 1%;
100PPM; 0.25W; THICK FILM
RESISTOR; 0603; 0 OHM; 0%;
JUMPER; 0.10W; THICK FILM;
FORMFACTOR
RESISTOR; 0603; 10K OHM; 1%;
100PPM; 0.1W; THICK FILM
RESISTOR, 0603, 180 OHM, 1%,
100PPM, 0.10W, THICK FILM
RESISTOR; 0603; 10 OHM; 1%;
100PPM; 0.1W; THICK FILM
RESISTOR; 0603; 200K; 1%; 100PPM;
0.10W; THICK FILM
RESISTOR; 0603; 100K OHM; 1%;
100PPM; 0.1W; THICK FILM
RESISTOR; 0603; 16.9K OHM; 1%;
100PPM; 0.10W; THICK FILM
RESISTOR; 0603; 1.5K; 1%; 100PPM;
0.10W; THICK FILM
EVKIT PART-IC; INFC; AUTOMOTIVE
3-CHANNEL DISPLAY BIAS IC WITH
LINEAR REGULATOR AND I2C
INTERFACE; TQFN32-EP
PCB:MAX20067
92
*Note: DNI = DO NOT INSTALL; DNP = DO NOT PURCHASE.
www.maximintegrated.com
Maxim Integrated │ 9
DIG_VDD
AGND1
1.5K
R25
1.5K
R26
SCL
SDA
FLT
MINIQ_3V3
TFT_POWER_INPUT
TFT_POWER_IN_FILTERED
FLT
PGND1
1K
R2
1K
R1
DS1
K
FLT
DS2
RED
K
GREEN
1
10
19
17
15
13
11
9
7
5
3
1
DIG_VDD
J1
ADD
J2
PWR_IN
INA
2
20
18
16
14
12
10
8
6
4
2
J10
MINIQUSB+
10.5K
R3
C7
10UF
R10
82
MINIQ_3V3
1
2 DIG_VDD
3
1
2
3
PWR_LED_EN
J3
PWR_IN
A DIG_VDD
A
C2
10UF
ENP
J5
SEQ
J4
1
2
3
1
2
3
R4
91K
C35
0.22UF
R11
MODE
J6
Not Fitted
R9
10K
R5
10K
C10
0.1UF
R6
FBGH
10K
C12
2.2UF
REF
FBP
FLTB
SCL
SDA
ADD
DGND
ENP
R21
100K
R12
16K
25
26
27
28
29
30
31
32
1
2
3
100PF C1
C20
0.022UF
SEQ
FBGH
C5
10UF
PGND2
C4
10UF
DEL
FBGL
IN A
MODE
VGOFF
R7
VCINH
R14
0
C9
0.1UF
INA
DRVN
T F T _ P O W E R _ IN P U T
ENP
VGOFF
CTL
CTL
GND
1
D1
Not Fitted
R13
0
C15
0.1UF
3
2
VCINH
VGON
12
C16
1UF
C19
0.1UF
D2
2
BST
AVDD
HVINP
LXP
PGND
SRC
GATES
DRN
100PF
C11
C6
100PF
EP
16
15
14
13
12
11
10
9
C14
0.1UF
U1
MAX20067
VCOM
Not Fitted
R15
Not Fitted
R16
1
AGND2
C21
1UF
2
2
SRC
J9
DRN
J8
2
C22
0.1UF
1
VCOMP
J7
C18
0.1UF
AVDD
L1
1UH
VCOM
DRVP
24
23
22
21
20
19
18
17
VCOMP
PGVDD
1
2
3
4
5
6
7
8
3
EP
33
PWR_IN 1
D3
3
2
C23
1UF
VGON
1
1
C24
0.1UF
1
D4
C8
4.7UF
Not Fitted
R18
0
R17
180
L2
10UH
VCOM
2
D5
Not Fitted
R19
A
C25
2.2UF
Not Fitted
Not Fitted
C26
C27
10UF
TFT_POWER_INPUT
1
2
www.maximintegrated.com
3
TFT_POWER_IN
0
C
R8
C28
0.1UF
1
Not Fitted
L3
VGON
Not Fitted
R22
16.9K
FBGH
C17
10UF
C31
0.1UF
C30
2
R20
200K
AVDD
C29
0.1UF
HVINP
C13
0.01UF
C3
1UF
AGND
VGON
FILTERED_AVDD
AVDD
HVINP
PGND
SRC
GATES
DRN
VCOM
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Evaluate: MAX20067
MAX20067 EV Kit Schematic
Maxim Integrated │ 10
VCOMP
HVINP
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Evaluate: MAX20067
MAX20067 EV Kit PCB Layouts
MAX20067 EV Kit Component Placement Guide—Top
Silkscreen
MAX20067 EV Kit PCB Layout—Top Layer
MAX20067 EV Kit PCB Layout—Internal Layer 2
www.maximintegrated.com
Maxim Integrated │ 11
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Evaluate: MAX20067
MAX20067 EV Kit PCB Layouts (continued)
MAX20067 EV Kit PCB Layout—Internal Layer 3
www.maximintegrated.com
MAX20067 EV Kit PCB Layout—Bottom Layer
Maxim Integrated │ 12
MAX20067 Evaluation Kit/
MAX20067 Evaluation System
Evaluate: MAX20067
Revision History
REVISION
NUMBER
REVISION
DATE
0
8/17
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.
© 2017 Maxim Integrated Products, Inc. │ 13
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