MAX14914 Evaluation Kit - Evaluates: MAX14914

MAX14914 Evaluation Kit - Evaluates: MAX14914
Evaluates: MAX14914
MAX14914 Evaluation Kit
General Description
The MAX14914 evaluation kit (EV kit) provides a proven
design to evaluate the MAX14914, a configurable industrial
digital output driver/digital input. The EV kit allows controlling
of the MAX14914 as either a digital output (in either
High-Side or Push-Pull mode) or digital input with simple
jumper settings.
The EV kit must be powered from an external +24V power
supply and can consume up to 1.3A (minimum) when fully
loaded.
The MAX14914EVKIT comes with a MAX14914ATE+
installed in a 16-pin, 4x4mm TQFN-EP package.
MAX14914 EV Kit Board Photo
19-8773; Rev 0; 2/17
Features
●● Robust Operation with Wide Range of Input Voltages
and Load Conditions
●● -40°C to +125°C Temperature Range
●● On-Board LED Indication of Status and Fault
Conditions
●● Reverse Supply Voltage Protection
●● Proven PCB Layout
●● Fully Assembled and Tested
Ordering Information appears at end of data sheet.
Evaluates: MAX14914
MAX14914 Evaluation Kit
MAX14914 EV Kit Block Diagram
+24V
PGND
VDD
VL
REGIN
VL
OV_VDD
V5
V5
GND
FAULT
MAX14914
DOI
PGND
IN
PP
CLIM
DI_EN
DOI_LVL
VL
Quick Start
Required Equipment
●● MAX14914 EV kit
●● +24V power supply
●● Voltmeter
●● Function generator (optional)
●● Oscilloscope (optional)
Procedure
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation:
1) Verify that all jumpers are in their default positions for
the digital output (DO), high-side operation (Table 1).
2) Power up the EV kit with +24V from an external power
supply. Apply +24V to the TP16 banana jack and 0V
to the TP15 banana jack.
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3) Use TP11 (DOI) and TP12 (PGND) to check that the
DOI level is high-Z by voltmeter or oscilloscope.
4) Move the J4 shunt to 1-2 position (IN = high). Observe
that the DOI level becomes high and DS2 LED lights up.
5) Move the J4 shunt back to the 2-3 position (IN = low).
6) Move the J5 shunt to 1-2 position (PP = high, enable
Push-Pull mode).
7) Repeat steps 4 and 5 to verify that the DOI output and
check that the DS2 LED follows the IN settings.
8) Move J3 shunt to 1-2 position (DI_EN = high, enable DI
mode). Note that the shunts position of J4 is ignored.
9) Apply static 24V between TP11 (DOI) and TP12
(PGND).
10) Observe that the DS2 LED follows the level of the DOI
input.
Maxim Integrated │ 2
Evaluates: MAX14914
MAX14914 Evaluation Kit
Table 1. MAX14914 Board Shunt Positions and Settings
HEADER
SHUNT
POSITION
1-2*
J1
J2
Open
2-3
Bypass the external voltage regulator and apply an external 5V supply to TP3 to power up
the device.
Set DI_EN low to enable digital output (DO) operation
1-2
Set DI_EN high to enable digital input (DI) operation
DO operation is enabled by internal weak pulldown resistor
2-3*
Set IN low and DOI three-state/low
1-2
Set IN high and DOI high
Provide square wave from function generator to TP10
2-3*
Set PP low and DO High-Side mode or DI Type 1, 3 mode in conjunction with J3 setting
1-2
Set PP high and DO Push-Pull mode or DI Type 2 mode in conjunction with J3 setting
Open
JMP1
Provide an external 6~40V supply to J2.2
2-3*
Open
J5
Connect an external supply between TP5 (VL) and TP4 (GND) to provide the user-defined
input logic level from 2.5V to 5.5V
Input to the internal 5V regulator (REGIN) is from VDD source
Open
J4
Connected VL to V5 and set input logic level to 5V
1-2*
Open
J3
DESCIPTION
Set PP low and DO High-Side mode or DI Type 1, 3 Mode by internal pulldown resistor in
conjunction with J3 setting
1-3*
Select CLIM = 51k and set current limit to ~900mA
1-2
Select CLIM = 27k and set current limit to ~1.6A
1-4
Select CLIM = 220k and set current limit to ~200mA
Open
Current limit internally set to ~1.1A
*Default configuration
Detailed Description of Hardware
The MAX14914 EV kit allows the user to evaluate all the
features and operational modes of the MAX14914 digital
High-Side/Push-Pull driver. It also can be configured as a
digital input level translator.
External Power Supply/Supplies
The EV kit is powered from a single power supply and
accepts a wide range of input voltages, from 10V to
40V. The power is applied through two banana jacks,
TP16 (+) and TP15 (-). The MAX14914 can drive up
to 1.5A of current to the external load. The load is
connected to the EV kit through the J7 terminal block.
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The 24V field supply is reverse-voltage protected and tolerant up to 60V supply spikes. Reverse-voltage protection
is achieved in the Q1 transistor. Refer to the MAX14914
EV kit schematic. The MAX14914 is immune to ±2.0kV
1.2/50µs surge pulses applied between the DOI and
PGND load lines.
A power to the 5V internal regulator can be provided
directly from either the VDD pin or from an external supply;
selectable at the J2 header. Refer to Table 1 for details.
If a logic interface of less than 5V is used from a microcontroller (3.3V, for example), a secondary power supply
is needed to power up the VL pin through the TP5 test
point with the correct voltage. In this case, the J1 header
should be left open.
Maxim Integrated │ 3
Evaluates: MAX14914
MAX14914 Evaluation Kit
Digital Output Operation
The user can manually control the IN input either by shunt
position on the J4 header (refer to Table 1) or by applying square wave to the TP10 from an external function
generator or microcontroller. The J5 shunt sets either the
High-Side or Push-Pull mode of operation. The High-Side
mode is mostly used with the high current-resistive and
inductive loads, while Push-Pull is often used for highspeed resistive and capacitive loads. The MAX14914
supports up to a 100kHz switching frequency. When using
high-frequency push-pull mode switching, be aware that
the 10nF (C8) capacitor charging/discharging current
generates very high power dissipation in the MAX14914.
Fault Indication
The fault LED (DS1) turns on when the driver exceeds
170°C or a loss of ground is detected. The DOI output is
three-stated and the device will not operate until the fault
condition disappears.
Ordering Information
PART
TYPE
MAX14914EVKIT#
EV Kit
#Denotes RoHS compliant.
Digital Input Operation
When the DI_EN is high (J3 shunt in position 1-2) the
MAX14914 works as digital input. In this mode, the input
signal applied between the DOI pin (J7.2 or TP11) and
PGND (J7.1 or TP12) is level-shifted and inverted to the
output on TP8 (DOI_LVL). Note that the DOI_LVL is an
open-drain output and needs a pullup to the VL voltage
level. DOI_LVL is logically inverted to the DOI input. So,
the LED DS2 reflects the real logic state of the DOI input.
In digital input mode, the MAX14914 supports both IEC
Type 1/3 as well as Type 3 inputs. Set J5/PP logic input
high for Type 2 input characteristics.
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Maxim Integrated │ 4
Evaluates: MAX14914
MAX14914 Evaluation Kit
MAX14914 EV Kit Bill of Materials
ITEM
REF_DES
DNI/DNP
1
C1
-
QTY
1
GRM32ER71J106KA12
MFG PART #
MURATA
MANUFACTURER
VALUE
10UF
CAPACITOR; SMT (1210); CERAMIC CHIP;
10UF; 63V; TOL = 10%; TG = -55°C TO +125°C;
TC = X7R
2
C2, C3
-
2
C0603C105K4RAC;
GRM188R71C105KA12;
C1608X7R1C105K;
EMK107B7105KA
KEMET/MURATA/TDK/
TAIYO YUDEN
1UF
CAPACITOR; SMT (0603); CERAMIC CHIP;1UF;
16V; TOL = 10%; MODEL = ; TG = -55°C TO +125°C;
TC = X7R
3
C5, C7
-
2
GCJ188R71H104KA12;
GCM188R71H104K;
CGA3E2X7R1H104K080AE
MURATA; TDK
0.1UF
CAPACITOR; SMT (0603); CERAMIC CHIP;
0.1UF; 50V; TOL = 10%; TG = -55°C TO +125°C;
TC = X7R; AUTO
4
C8
-
1
GRM2195C1H103JA01
MURATA
0.01UF
CAPACITOR; SMT; 0805; CERAMIC; 0.01uF;
50V; 5%; COG; -55°C to + 125°C;
0?30ppm/?C from -55°C to +125°C
5
D1
-
1
MM3Z12VT1G
ON SEMICONDUCTOR
12V
DIODE; ZNR; SMT (SOD-323);
PIV = 12V; IZ = 0.005A
6
D2
-
1
SMBJ40A
BOURNS
40V
DIODE; TVS; SMB (DO-214AA);
VRM = 40V; IPP = 9.3A
7
DS1
-
1
LTST-C191KRKT
LITE-ON ELECTRONICS INC.
LTST-C191KRKT
DESCRIPTION
COMMENTS
DIODE; LED; SMD LED; RED;
SMT (0603); VF = 2V; IF = 0.02A
DIODE; LED; SMARTLED; GREEN;
SMT; PIV=1.7V; IF=0.02A
8
DS2
-
1
LGL29K-G2J1-24-Z
OSRAM
LGL29K-G2J1-24-Z
9
J1
-
1
PCC02SAAN
SULLINS
PCC02SAAN
CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY;
STRAIGHT THROUGH; 2PINS; -65°C TO +125°C
10
J2-J5
-
4
PCC03SAAN
SULLINS
PCC03SAAN
CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY;
STRAIGHT THROUGH; 3PINS; -65°C TO +125°C
11
J7
-
1
ED555/2DS
ON-SHORE TECHNOLOGY INC
ED555/2DS
12
JMP1
-
1
PEC04SAAN
SULLINS ELECTRONICS CORP.
PEC04SAAN
CONNECTOR; MALE; THROUGH HOLE;
BREAKAWAY; STRAIGHT; 4PINS
DMP6023LE
TRAN; 60V P-CHANNEL ENHANCEMENT MODE MOSFET;
PCH; SOT223-4; PD-(2W); I-(-7A); V-(-60V)
CONNECTOR; FEMALE; THROUGH HOLE;
TERMINAL BLOCK; RIGHT ANGLE; 2PINS
13
Q1
-
1
DMP6023LE
DIODES INCORPORATED
14
R1
-
1
CRCW040227K0FK
VISHAY DALE
27K
RESISTOR, 0402, 27KΩ, 1%,
100PPM, 0.0625W, THICK FILM
15
R2
-
1
ERJ-2RKF5102
PANASONIC
51K
RESISTOR; 0402; 51KΩ; 1%;
100PPM; 0.1W; THICK FILM
16
R3
-
1
MCR03EZPFX2002;
ERJ-3EKF2002
ROHM; PANASONIC
20K
RESISTOR; 0603; 20KΩ; 1%;
100PPM; 0.10W; THICK FILM
17
R4
-
1
CRCW0402220KFK;
9C04021A2203FLHF3
VISHAY DALE;
YAGEO PHYCOMP
220K
RESISTOR; 0402; 220KΩ; 1%;
100PPM; 0.063W; THICK FILM
18
R5
-
1
RC1005F2802
SAMSUNG ELECTRONICS
28K
RESISTOR; 0402; 28KΩ; 1%;
100PPM; 0.063W; THICK FILM
19
R6, R7
-
2
CRCW06033K30FK
VISHAY DALE
3.3K
RESISTOR, 0603, 3.3KΩ, 1%,
100PPM, 0.10W, THICK FILM
20
R8-R10
-
3
CRCW04021K00FK;
RC0402FR-071KL
VISHAY DALE;
YAGEO PHICOMP
21
SU1-SU5
-
5
STC02SYAN
SULLINS ELECTRONICS CORP.
22
TP1, TP9
-
2
5010
KEYSTONE
N/A
TESTPOINT WITH 1.80MM HOLE DIA, RED, MULTIPURPOSE;
23
TP2, TP4, TP12
-
3
5011
KEYSTONE
N/A
TEST POINT; PIN DIA = 0.125IN; TOTAL LENGTH = 0.445IN;
BOARD HOLE=0.063IN; BLACK;
PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;
24
TP3, TP5-TP8,
TP10, TP13,
TP14
-
8
5003
KEYSTONE
N/A
TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN;
BOARD HOLE =0.04IN; ORANGE;
PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;
25
TP11
-
1
5013
KEYSTONE
N/A
TEST POINT; PIN DIA = 0.125IN;
TOTAL LENGTH = 0.445IN; BOARD HOLE = 0.063IN; ORANGE;
PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;
26
TP15, TP16
-
2
6095
KEYSTONE
6095
CONNECTOR; FEMALE; PANELMOUNT;
NON-INSULATED RECESSED HEAD BANANA JACK;
STRAIGHT THROUGH; 1PIN
27
U1
-
1
MAX14914ATE+
MAXIM
28
J6, J8-J10
DNI
4
EVKIT_STANDOFF_4-40_3/8
?
29
C4
DNP
0
GRM32ER71J106KA12
MURATA
0
C2012X7S2A105K125;
GRJ21BC72A105KE11
30
31
C6
D3
DNP
DNP
0
SMBJ40CA
TDK/MURATA
BOURNS
1K
STC02SYAN
MAX14914ATE+
EVKIT_STANDOFF_
4-40_3/8
RESISTOR; 0402; 1K; 1%;
100PPM; 0.0625W; THICK FILM
TEST POINT; JUMPER; STR; TOTAL LENGTH = 0.256IN; BLACK;
INSULATION = PBT CONTACT = PHOSPHOR BRONZE;
COPPER PLATED TIN OVERALL
EVKIT PART - IC; SWITCH; HIGH-SIDE SWITCH WITH SETTABLE
CURRENT LIMIT AND PUSH-PULL DRIVER OPTION;
NO. OF LEADS-(16); TQFN16-EP
KIT; ASSY-STANDOFF 3/8IN;
1PC. STANDOFF/FEM/HEX/4-40IN/(3/8IN)/NYLON;
1PC. SCREW/SLOT/PAN/4-40IN/(3/8IN)/NYLON
10UF
CAPACITOR; SMT (1210); CERAMIC CHIP; 10UF; 63V;
TOL = 10%; TG = -55°C TO +125°C; TC = X7R
DNI
1UF
CAPACITOR; SMT (0805); CERAMIC CHIP; 1UF; 100V;
TOL = 10%; TG=-55°C TO +125°C; TC = X7S
DNI
40V
DIODE; TVS; SMB (DO-214AA);
VRM=40V; IPP = 9.3A
DNI
DNI
32
R11
DNP
0
CRCW0805150KFK
VISHAY DALE
150K
RESISTOR; 0805; 150K; 1%;
100PPM; 0.125W; THICK FILM
33
PCB
-
1
MAX14914
MAXIM
PCB
PCB Board:MAX14914 EVALUATION KIT
TOTAL
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55
Maxim Integrated │ 5
Evaluates: MAX14914
MAX14914 Evaluation Kit
MAX14914 EV Kit Schematics
TP1
TP16
Q1
DMP6023LE
TP9
10UF
PGND
S
R3
D3
40V
VDD
C4
40V
10UF
DNI
A
DNI
D2
D1
12V
20K
1
C1
TP2 TP15
3
G
2
D
4
C
+24V
J2
V5
R5
28K
3
1
2
TP6
TP3
0.1UF
15
14
13
REGIN
VDD
DOI
11
DOI
10
TP11
R11
9
150K
DNI
C8
PGND
0.01UF
2
1
J7
TP12
EP
4
12
PGND
PP
FAULT
8
4
DOI
VDD
MAX14914ATE+
IN
CLIM
7
GND
3
DI_EN
2
DOI_LVL
VL
C7
0.1UF
R4
220K
TP7
K
TP8
A
DS1
VL
IN
R6
3.3K
R7
3.3K
R10
K
R2
51K
DS2
R9
A
R1
27K
17
3
2
1
6
1
JMP1
16
1UF
1
TP5
V5
U1
OV_VDD
1UF
J1
C3
VL
1UF
DNI
C2
TP4
5
GND
C6
C5
2
V5
IN
TP14
1K
1K
TP10
TP13
R8
VL
1
1
3
3
J5
2
2
2
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J4
3
J3
1
1K
Maxim Integrated │ 6
MAX14914 Evaluation Kit
Evaluates: MAX14914
MAX14914 EV Kit PCB Layouts
MAX14914 EV Kit—Top Silkscreen
MAX14914 EV Kit—Top
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Maxim Integrated │ 7
MAX14914 Evaluation Kit
Evaluates: MAX14914
MAX14914 EV Kit PCB Layouts (continued)
MAX14914 EV Kit—Level 2 GND
MAX14914 EV Kit—Level 3 Power
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Maxim Integrated │ 8
MAX14914 Evaluation Kit
Evaluates: MAX14914
MAX14914 EV Kit PCB Layouts (continued)
MAX14914 EV Kit—Bottom
MAX14914 EV Kit—Bottom Silkscreen
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Maxim Integrated │ 9
Evaluates: MAX14914
MAX14914 Evaluation Kit
Revision History
REVISION
NUMBER
REVISION
DATE
0
2/17
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. │ 10
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