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MAX14882 Evaluation Kit
Evaluates: MAX14882
General Description
The MAX14882 evaluation kit (EV kit) is a fully assembled
and tested PCB that demonstrates the functionality of the
MAX14882 isolated controller area network (CAN) trans-
ceiver. The EV kit operates from a single 3.3V supply and
features an on-board isolated power supply to power the
secondary side of the circuit.
Quick Start
Required Equipment
●
MAX14882 EV kit
●
3.3V, 500mA DC power supply
●
Signal/function generator
●
Oscilloscope
Features
●
Operates from a Single 3.3V Supply
●
Terminal Block Connectors for Easy RS-485/RS-422
Evaluation
●
5000VRMS Isolation for 60s
●
Fully Assembled and Tested
Procedure
1)
2)
3)
4)
5)
6)
7)
8)
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation.
Set the DC power supply to 3.3V.
Connect the DC power supply to the 3.3V test point
(T15). Connect the ground terminal to the GND
testpoint (T14).
Ensure that the jumpers are in their default positions
(see
Table 1).
Turn on the power supply.
Connect the oscilloscope to the CANH and CANL
test points (T12 and T13).
Set the signal/function generator to output a 500kHz
0-to-3.3V square wave.
Connect the signal/function generator to the TXD
test point (T7).
Verify that the CANH and CANL outputs switch as the sig-
nal toggles.
Ordering Information
appears at end of data sheet.
319-100188; Rev 0; 5/18
MAX14882 Evaluation Kit
Evaluates: MAX14882
Detailed Description of Hardware
The MAX14882 EV kit is a fully assembled and tested
circuit board for evaluating the MAX14882 isolated CAN
transceiver (U1). The EV kit is powered from a single 3.3V
power supply.
To use an external supply on the isolated side of the
board, remove the shunt on the J1 jumper and apply the
voltage to the V
LDO
test point (T8).
External Power Supply
Evaluating the Isolated CAN Interface
The MAX14882 EV kit includes test points to access
CANH (T12) and CANL (T13) for easy evaluation. To ver-
ify operation in a CAN system, connect the transceiver to
the network using the P3 terminal block and use the TXD
(T7) and RXD (T4) test points, or the P2 jumper pad, to
connect the device to a logic controller.
The power on the EV kit is derived from a single 3.3V
source. Connect an external supply to the +3.3V test
point (T15) to supply the 3.3V to the logic-side (A) of the
circuit. The MAX14882 drives the on-board transformer
1CT:2.4CT to generate the supply voltage needed on the
isolated side of the transceiver.
Table 1. Jumper Table (J1-J5)
JUMPER
J1
SHUNT POSITION
1-2*
2-3
1-2
2-3*
Open
J3
Closed*
Open
Closed*
J5
*Default position.
1-2
2-3*
DESCRIPTION
V
LDO
is connected to the output of the transformer circuit.
V
LDO
is connected to ground. Connect an external 5V to V
DDB
to power the iso-
lated side of the MAX14882.
POL is connected to V
DDA
.
POL is connected to GNDA.
On-board termination network is not connected to CANH. Open jumpers J3 and J4
to disable on-board termination between CANH and CANL.
On-board termination network is connected between CANH and CANL. Close J4 to
enable split termination with the capacitor to GNDB. Open J4 for resistive termina-
tion only.
Split termination capacitor is not connected to GNDB. Open J3 and J4 to disable
the on-board termination between CANH and CANL.
Split termination capacitor is conneced to the GNDB.
TXD is connected to V
DDA
.
TXD is connected to GNDA.
J2
J4
Ordering Information
PART
MAX14882EVKIT#
#Denotes RoHS compliant.
TYPE
EV Kit
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Maxim Integrated
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MAX14882 Evaluation Kit
Evaluates: MAX14882
MAX14882 EV Kit Bill of Materials
ITEM
1
REF_DES
C1, C4, C7
DNI/DNP
-
QTY
3
MFG PART #
8.85E+11
MANUFACTURER
WURTH ELECTRONICS INC
VALUE
0.1UF
DESCRIPTION
CAP; SMT (0603); 0.1UF; 10%; 25V; X7R; CERAMIC CHIP
2
C2, C6, C8
-
3
3
4
5
6
7
8
9
C3, C5
C9
D1, D2
J1, J2, J5
J3, J4
P3
R2, R3
-
-
-
-
-
-
-
2
1
2
3
2
1
2
GRM188R71E105KA12D;
MURATA;TDK;TAIYO
CGA3E1X7R1E105K;
TMK107B7105KA; 06033C105KAT2A YUDEN;AVX
GRM21BR61E106K;
C2012X5R1E106K125AB;
C2012X5R1E106K
MURATA;TDK;TDK
C0603C470J5GAC; 06035A470JAT2A KEMET;AVX
MICRO COMMERCIAL
COMPONENTS
MBR0520
61300311121
PBC02SAAN
1935187
CRCW080560R4FK
WURTH ELECTRONICS INC
SULLINS ELECTRONICS CORP.
PHOENIX CONTACT
VISHAY DALE
1UF
CAPACITOR; SMT (0603); CERAMIC CHIP; 1UF; 25V; TOL=10%;
TG=-55 DEGC TO +125 DEGC; TC=X7R
CAPACITOR; SMT (0805); CERAMIC CHIP; 10UF; 25V; TOL=10%;
MODEL=; TG=-55 DEGC TO +125 DEGC; TC=X5R
CAPACITOR; SMT (0603); CERAMIC CHIP; 47PF; 50V; TOL=5%;
MODEL=; TG=-55 DEGC TO +125 DEGC; TC=C0G
DIODE; SCH; SCHOTTKY RECTIFIER; SMT (SOD-123); PIV=20V;
IF=0.5A; -55 DEGC TO +150 DEGC
CONNECTOR; MALE; THROUGH HOLE; 2.54MM PIN HEADER;
STRAIGHT; 3PINS
CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT;
2PINS
CONNECTOR; FEMALE; THROUGH HOLE; GREEN TERMINAL
BLOCK; STRAIGHT; 4PINS
RESISTOR; 0805; 60.4 OHM; 1%; 100PPM; 0.125W; THICK FILM
TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD
HOLE=0.063IN; BLACK; PHOSPHOR BRONZE WIRE SILVER PLATE
FINISH;
TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD
HOLE=0.063IN; YELLOW; PHOSPHOR BRONZE WIRE SILVER
PLATE FINISH;
10UF
47PF
MBR0520
61300311121
PBC02SAAN
1935187
60.4
10
T2, T3, T10, T11, T14
-
5
5011
N/A
5011
11
12
13
T4, T6, T7, T12, T13
T8, T9, T15
TX1
-
-
-
5
3
1
5014
5010
TGMR-1464V6LF
N/A
N/A
HALO ELECTRONICS, INC
5014
5010
14
15
U1
PCB
-
-
1
1
MAX14882AWE+
MAX14882
MAXIM
MAXIM
TESTPOINT WITH 1.80MM HOLE DIA, RED, MULTIPURPOSE
TRANSFORMER; SMT; 1:2.4; POWER TRANSFORMER; DRAFT
TGMR-1464V6LF DATASHEET ONLY
EVKIT PART-IC; RV57; PACKAGE OUTLINE DRAWING: 21-0042;
LAND PATTERN DRAWING: 90-0107; PACKAGE CODE: W16+10;
MAX14882AWE+ WSOIC16 300MIL
PCB
PCB:MAX14882
CAPACITOR; THROUGH HOLE-RADIAL LEAD; POLYPROPYLENE;
4700pF; 1000V; TOL=5%; TG=-55degC TO +105degC
CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT;
6PINS; -65 DEGC TO +125 DEGC
RESISTOR; 0603; 49.9 OHM; 1%; 100PPM; 0.10W; THICK FILM
16
17
18
TOTAL
C10
P2
R1
DNP
DNP
DNP
0
0
0
35
B32620A0472J
PBC06SAAN
CRCW060349R9FK
EPCOS
SULLINS ELECTRONICS CORP.
VISHAY DALE
4700PF
PBC06SAAN
49.9
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Maxim Integrated
│
3
T14
1
3
2
2
TD2
GNDA
VDDA
CANH
13
IC
14
GNDB
15
4
1
1
VDDA
J2
RXD
NC
POL
TXD
GNDB
9
J4
VLDO
10
IC
11
R2
CANL
VDDA
3
J3
3
1
3
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VDDA
VLDO
T8
TGMR-1464V6LF
T15
TX1
6
J1
5
1
1
2
5
6
2
D1
VDDB
VLDO
T9
2
VDDA
C3
10UF
3
3
4
4
D2
C5
10UF
MAX14882 Evaluation Kit
MAX14882 EV Kit Schematic
VDDB
C7
0.1UF
C8
1UF
VDDA
C1
T4
1
TD1
VDDB
16
0.1UF
C2
1UF
MAX14882AWE+
U1
T12
CANH
VDDB
P3
4
3
2
1
P2
RXD
5
6
7
8
12
CANH
CANL
60.4
1
2
3
4
5
6
IN
IN
IN
RXD
POL
TXD
T6
1
47PF
2
POL
TXD
2
C9
DNI
DNI
VDDA
J5
49.9
60.4
R1
R3
CANL
T13
T7
2
VLDO
GNDA
T2
C4
0.1UF
C6
1UF
T10
GNDB
T11
T3
C10
DNI
PROJECT TITLE:
MAX14882 EVKIT
DRAWING TITLE:
SIZE
DATE:
HARDWARE NUMBER:
B
_
ENGINEER:
09/07/17
ST
DRAWN BY:
_
REV:
TEMPLATE REV:
A
Evaluates: MAX14882
1.5
SHEET 1 OF
1
Maxim Integrated
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MAX14882 Evaluation Kit
Evaluates: MAX14882
MAX14882 EV Kit PCB Layout Diagrams
MAX14882 EV Kit—Top Silkscreen
MAX14882 EV Kit—Top
MAX14882 EV Kit—Internal
MAX14882 EV Kit—Internal 3
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