MAX33015E [MAXIM]

MAX33015E Shield;


型号：	MAX33015E
厂家：	MAXIM INTEGRATED PRODUCTS
描述：	MAX33015E Shield
文件：	总9页 (文件大小：903K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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Evaluates: MAX33014E,

MAX33015E

MAX33015E Shield

General Description

Quick Start

The MAX33015E Shield is a fully assembled and tested

Printed Circuit Board (PCB) that demonstrates the func-

tionality of the MAX33015E, a high ±65V fault-protection,

±25V common-mode input range, ±45kV ESD Human

Body Model (HBM) controller area network (CAN) trans-

ceiver. The Mbed/Arduino shield can also be used as a

standalone evaluation board. The shield features a digital

isolator, which is used as a level translator between the

CAN transceiver and the controller interface.

Required Equipment

●

MAX33015E Shield

5V, 500mA DC power supply

Signal/function generator that can generate a

2.5MHz square wave signal

●

Oscilloscope

Procedure

1) Place the MAX33015E Shield on a nonconductive

surface to ensure nothing on the PCB gets shorted

to the workspace.

Features

● Easy Evaluation of the MAX33015E

● I/O Interface Compatibility from 1.71V to 5.5V

● Proven PCB Layout

2) Set all jumpers in their default position as shown in

Table 1.

3) With the +5V power supply disabled, connect the

positive terminal to the VDD_EXT, VL_EXT, and

IOREF test points. Connect the negative terminal to

the GND test point.

● Mbed/Arduino Platform Compatible

● Fully Assembled and Tested

4) Connect the positive terminal of the function genera-

tor to the D1 pin of JU8 and negative terminal to any

GND test points on the shield.

Ordering Information appears at end of data sheet.

5) Set the function generator to output a 2.5MHz

square wave between 0V and 5V, and then enable

the function generator output.

6) Turn on the +5V DC power Supply.

7) Connect an oscilloscope probe on the RXD test point

and verify the RXD output signal matches the TXD

input signal.

319-100687; Rev 1; 4/21

Evaluates: MAX33014E,

MAX33015E

MAX33015E Shield

Table 1. Table Jumper Settings

JUMPER

SHUNT POSITION

DESCRIPTION

1-2

Connects 120.8Ω between CANH and CANL

JU_CANH

and JU_

CANL

2-3*

Connects 60.4Ω between CANH and CANL

No load is connected between CANH and CANL

VDD is shorted to 5V supply

Open

1-2

JU1

JU8

2-3*

VDD is shorted to VDD_EXT supply

VDD is open

Open

Refer to TXD and RXD conﬁguration

Connects STBY to D7 of JU8

1-2

JU9

JU10

Open*

1-2*

Disconnects STBY from D7 of JU8

Connects TVS diode to CANL

JU10

JU12

Open

1-2*

Disconnects TVS diode to CANL

Connects STBY to ground

1-3

Connects STBY to a 26.1KΩ resistor to ground

JU12

1-4

Connects STBY to the U2’s OUTB2 pin used for Arduino/Mbed interface

Internal pullup for standby mode

Connects 15pF capacitor between receiver output and ground

Disconnects 15pF capacitor between receiver output and ground

Connects TVS diode to CANH

Open

1-2*

JU5

Open

1-2*

JU20

Open

1-2

Disconnects TVS diode from CANH

LPBK is shorted to VL

JU15

2-3

LPBK is shorted to GND

Open*

1-2

LPBK is open

FAULT is shorted to D8 pin of JU8

FAULT is open

JU7

JU16

JU13

Open*

1-2

LPBK is shorted to D6 pin of JU8

LPBK is open

Open*

1-2

CANH and CANL are shorted

Open*

1-2

CANH and CANL are not shorted

FAULT connected to IOREF with 100K pullup

FAULT connected to VL with 100K pullup

FAULT is open

JU6

2-3*

Open

1-2

VL is shorted to 5V supply

JU14

2-3*

VL is shorted to VDD_EXT supply

VL is open

Open

1-2*

TXD_U1 is connected to TXD through MAX14131

Can apply signal directly on TXD_U1

LPBK_U1 is connected to LPBK through MAX14131

Can apply signal directly on LPBK_U1

RXD_U1 is connected to RXD through MAX14131

Can observe signal directly on RXD_U1

JU2

JU3

JU4

Open

1-2*

Open

1-2*

Open

Note: * indicates default jumper state.

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Evaluates: MAX33014E,

MAX33015E

MAX33015E Shield

2) Overcurrent Fault Detection:

Transmission Failure, Overcurrent, and

Overvoltage Fault Detection Procedure

• Connect a short wire between the pin#2 of

JU_CANH and pin#2 of JU_CANL. As the CANH

and CANL lines are shorted to each other, the

MAX33015E detects an ‘Overcurrent’ fault.

• Verify the RXD output signal shows fault code

‘101010’.

To test the fault detection, 100 pulses on the TXD are

required to enable the fault detection circuitry. There are

three different faults that can be tested. After each fault

condition is applied, the fault pin goes high. Send 16

pulses on the TXD to observe the fault code on RXD.

Additional 10 pulses on the TXD are required to clear the

fault and another 100 pulses on the TXD to enable fault

detection again.

3) Overvoltage Fault Detection:

• Remove the wire and follow the setup instructions

in Figure 1 of the MAX33015E data sheet to ob-

serve ‘Overvoltage’ fault. The recommended RCM

value is 150Ω and VCM value is 30V to detect

‘Overvoltage’ fault.

1) Transmission Failure Fault Detection:

• Remove jumpers JU_CANH and JU_CANL. As

the CAN Bus does not have any termination, the

MAX33015E detects a ‘Transmission Failure’ fault.

• Connect an oscilloscope probe on the RXD test

point and verify the RXD output signal shows fault

code ‘110010’.

• Verify the RXD output signal shows fault code

‘100110’.

Figure 1. EV Kit with Jumpers and Positions of Test Points

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Evaluates: MAX33014E,

MAX33015E

MAX33015E Shield

split termination circuit between the CANH and CANL

driver outputs. The 60Ω-60Ω split termination has a foot-

print for a capacitor to reduce high-frequency noise and

common-mode drift. If the board is evaluated in a system

and is connected at the end of the cable, then select the

120Ω (60Ω-60Ω split) termination. To simulate a complete

system without connecting to another CAN transceiver,

change the termination resistors on the MAX33015E

Shield to a 60Ω with optional footprint for a 100pF load.

Detailed Description of Hardware

The MAX33015E Shield is a fully assembled and tested

circuit board to evaluate the MAX33015E fault-protected

high-speed CAN transceiver (U1) with ±65V fault protec-

tion, fault detection, and reporting. The Shield is designed

to evaluate the MAX33015E alone or in a CAN system.

The MAX33015E Shield enables the Mbed or Arduino

platform to communicate on a CAN bus. The MAX14932

digital isolator is used as a level translator with a 1.71V to

5.5V supply range.

TXD and RXD Conﬁguration

The digital channels for TXD and RXD are selected

through the JU8. It consists of three columns and 14 rows.

The columns labeled TXD and RXD are connected to the

MAX33015E through the digital isolator U2. The middle

column is the digital I/O pins, D0 to D13. This provides

flexibility to select different resources on the microcon-

troller to transmit and receive signals to and from the CAN

transceiver. Table 2 shows the list of JU8 jumper options.

Powering the Board

The MAX33015E Shield requires one power supply for

5V operation and another for VL operation. The power

supplies can come from an external supply or from the

Arduino/Mbed microcontroller’s 5V supply. Shunt the JU1

VDD pin to the VDD_EXT pin option (2-3 default position)

and JU14 VL pin to the VL_EXT pin option (2-3 default

position) to select the external supply. Shunt the JU1

VDD pin to 5V (1-2 position) and JU14 VL pin to 5V (1-2

position) to connect the Arduino/Mbed 5V supply to VDD.

DB9 Connector

The MAX33015E Shield has a DB9 connector to the

CANH and CANL (pins 7 and 6, respectively).

On-Board Termination

A properly terminated CAN bus is terminated at each

end with the characteristic impedance of the cable. For

CAT5 or CAT6 cables, this is typically 120Ω on each

end for a 60Ω load on the CAN driver. The MAX33015E

Shield features a selectable 60Ω load and a 60Ω-60Ω

SD Card

The MAX33015E Shield has a SD Card socket. The Micro

SD card is connected to D10-D13 to interface with the

Arduino/Mbed board through the SPI interface.

Table 2. Table TXD and RXD Jumper Setting

SHUNT

POSITION

SHUNT

POSITION

JUMPER

DESCRIPTION

JUMPER

DESCRIPTION

1-2

Connects TXD to D0

Connects TXD to D1

Connects TXD to D2

Connects TXD to D6

Connects TXD to D7

Connects TXD to D8

Connects TXD to D9

Connects TXD to D10

Connects TXD to D11

Connects TXD to D12

Connects TXD to D13

Connects TXD to D14

Connects TXD to D15

2-3*

5-6

Connects RXD to D0

Connects RXD to D1

Connects RXD to D2

Connects RXD to D6

Connects RXD to D7

Connects RXD to D8

Connects RXD to D9

Connects RXD to D10

Connects RXD to D11

Connects RXD to D12

Connects RXD to D13

Connects RXD to D14

Connects RXD to D15

4-5*

7-8

8-9

10-11

13-14

16-17

19-20

22-23

25-26

28-29

31-32

34-35

37-38

11-12

14-15

17-18

20-21

23-24

26-27

29-30

32-33

35-36

38-39

JU8

Note: * indicates default jumper state.

Ordering Information

PART

TYPE

MAX33015ESHLD#

Shield

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Evaluates: MAX33014E,

MAX33015E

MAX33015E Shield

MAX33015E EV Bill of Materials

NOTE: DNI -> DO NOT INSTALL (PACKOUT); DNP -> DO NOT PROCURE

ITEM

REF_DES

DNI/DNP

QTY

MFG PART #

MANUFACTURER

VALUE

DESCRIPTION

CL21B106KOQNNN;

GRM21BZ71C106KE15;

GMC21X7R106K16NT

SAMSUNG;MURATA;

CAL-CHIP

C1, C4

10UF

CAP; SMT (0805); 10UF; 10%; 16V; X7R; CERAMIC

C0402C104J4RAC;

GCM155R71C104JA55

C2, C3, C5, C6

KEMET;MURATA

0.1UF

100PF

CAP; SMT (0402); 0.1UF; 5%; 16V; X7R; CERAMIC

C0402C101J5GAC;

NMC0402NPO101J;

CC0402JRNPO9BN101;

GRM1555C1H101JA01;

C1005C0G1H101J050BA

KEMET;NIC COMPONENTS

CORP.;YAGEO PHICOMP;

MURATA;TDK;TDK

CAP; SMT (0402); 100PF; 5%; 50V; C0G; CERAMIC

CAP; SMT (0402); 15PF; 5%; 50V; C0G; CERAMIC

C0402C0G500-150JNP;

GRM1555C1H150JA01

C10

VENKEL LTD.;MURATA

KEYSTONE

15PF

N/A

TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD

HOLE=0.063IN; WHITE; PHOSPHOR BRONZE WIRE SILVER PLATE

FINISH;

CANH, CANL, RXD,

TXD

5012

502570-0893;

5025700893

CONNECTOR; FEMALE; SMT; MICROSD CARD CONNECTOR; RIGHT

ANGLE; 10PINS

CON1

502570-0893;5025700893

MOLEX;MOLEX

CONNECTOR; MALE; THROUGH HOLE; D-SUBMINIATURE

CONNECTOR; RIGHT ANGLE; 9PINS

CON2

D1, D2

DS1

182-009-113R531

SM15T30CA

NORCOMP

ST MICROELECTRONICS

KINGBRIGHT

182-009-113R531

25.6V

DIODE; TVS; SMC (DO-214AB); VRM=25.6V; IPP=36A

DIODE; LED; STANDARD; GREEN; SMT (0603); PIV=2.1V; IF=0.02A; -40

DEGC TO +85 DEGC

APT1608CGCK

APT1608LSECK/

J3-PRV

DIODE; LED; HYPER RED WATER CLEAR; RED; SMT (0603); VF=1.8V;

IF=0.002A

DS2

DS3

APT1608LSECK/J3-PRV

APT1608LVBC/D

KINGBRIGHT

DIODE; LED; BLUE WATER CLEAR; BLUE; SMT (0603); VF=2.65V;

IF=0.002A

APT1608LVBC/D

N/A

TEST POINT; PIN DIA=0.1IN; TOTAL LENGTH=0.3IN; BOARD

HOLE=0.04IN; WHITE; PHOSPHOR BRONZE WIRE SILVER;

FAULT, LPBK

IOREF, VL_EXT

JU1, JU14

5002

KEYSTONE

SULLINS

TEST POINT; PIN DIA=0.1IN; TOTAL LENGTH=0.3IN; BOARD

HOLE=0.04IN; RED; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;

5000

N/A

CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT

THROUGH; 3PINS; -65 DEGC TO +125 DEGC

PCC03SAAN

PCC02SAAN

PCC03SAAN

PCC02SAAN

JU2-JU5, JU7, JU9,

JU10, JU16, JU20

CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT

THROUGH; 2PINS; -65 DEGC TO +125 DEGC

SULLINS

JU6, JU15,

JU_CANH,

JU_CANL

CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 3PINS;

-65 DEGC TO +125 DEGC

PBC03SAAN

SULLINS

PBC03SAAN

CONNECTOR; MALE; THROUGH HOLE; 0.025IN SQ POST HEADER;

STRAIGHT; 39PINS ;

JU8

JU11, JU17

JU12

TSW-113-07-T-T

SSQ-108-24-G-S

TSW-104-07-L-S

SAMTEC

TSW-113-07-T-T

SSQ-108-24-G-S

TSW-104-07-L-S

CONNECTOR; FEMALE; THROUGH HOLE; .025INCH SQ POST SOCKET;

STRAIGHT; 8PINS ;

EVKIT PART-CONNECTOR; MALE; THROUGH HOLE; TSW SERIES;

SINGLE ROW; STRAIGHT; 4PINS

ON-SHORE TECHNOLOGY

INC.

CONNECTOR; FEMALE; THROUGH HOLE; 5.08MM TERM BLOCK

CONNECTOR; STRAIGHT; 2PINS; -30 DEGC TO +105 DEGC

JU13

OSTTA024163

CONNECTOR; FEMALE; THROUGH HOLE; .025INCH SQ POST SOCKET;

STRAIGHT; 6PINS ;

JU18

JU19

SSQ-106-24-G-S

SSQ-110-24-G-S

SAMTEC

SSQ-106-24-G-S

SSQ-110-24-G-S

CONNECTOR; FEMALE; THROUGH HOLE; .025INCH SQ POST SOCKET;

STRAIGHT; 10PINS ;

R1-R3

CRCW0201300RFK

CRCW040226K1FK

VISHAY DALE

300

26.1K

60.4

RES; SMT (0201); 300; 1%; +/-100PPM/DEGK; 0.0500W

RES; SMT (0402); 26.1K; 1%; +/-100PPM/DEGK; 0.0630W

RES; SMT (0603); 60.4; 1%; +/-100PPM/DEGC; 0.1000W

RES; SMT (1210); 60.4; 1%; +/-100PPM/DEGK; 0.7500W

R5, R6

CRCW060360R4FK

VISHAY DALE

CRCW121060R4FKEAHP

VISHAY DRALORIC

60.4

CRCW04021K80FK;

RC0402FR-071K8L

VISHAY DALE;YAGEO

PHICOMP

R8, R10, R12, R16

1.8K

RES; SMT (0402); 1.8K; 1%; +/-100PPM/DEGC; 0.0630W

R9, R11, R13, R14

R17

CRCW04023K30FK

CRCW0201100KFK

VISHAY DALE

3.3K

RES; SMT (0402); 3.3K; 1%; +/-100PPM/DEGC; 0.0630W

RES; SMT (0201); 100K; 1%; +/-100PPM/DEGC; 0.0500W

100K

KYCON;KYCON;

SULLINS ELECTRONICS

CORP.

S1100-B;SX1100-B;

STC02SYAN

TEST POINT; JUMPER; STR; TOTAL LENGTH=0.24IN; BLACK;

INSULATION=PBT;PHOSPHOR BRONZE CONTACT=GOLD PLATED

SU1-SU17, SU4_1

SX1100-B

N/A

TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD

HOLE=0.063IN; BLACK; PHOSPHOR BRONZE WIRE SILVER PLATE

FINISH;

TP1, TP2, TP17,

TP19

5011

KEYSTONE

EVKIT PART - IC; TXRX; +5V; 5MBPS CAN TRANSCEIVER WITH +/-65V

FAULT PROTECTION FAULT DETECTION AND REPORTING; +/-30V CMR

AND +/-25KV ESD PROTECTION; PACKAGE OUTLINE DRAWING: 21-

0137; LAND PATTERN NUMBER: 90-0003; PACKAGE CODE: T1033+1C;

TDFN10-EP

MAX33015EATB+

MAX14131FAEE+

MAXIM

MAX33015EATB+

MAX14131FAEE+

IC; DISO; 3/1 CHANNEL; 1KVRMS DIGITAL ISOLATORS; QSOP16

TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD

HOLE=0.063IN; RED; PHOSPHOR BRONZE WIRE SIL;

VDD_EXT

PCB

5010

KEYSTONE

MAXIM

N/A

PCB

MAX33015ESHIELD

PCB:MAX33015ESHIELD

C1005X7R1E473K050BC;

GRM155R71E473K;

GCM155R71E473KA55

DNP

TDK;MURATA;MURATA

N/A

0.047UF

OPEN

CAP; SMT (0402); 0.047UF; 10%; 25V; X7R; CERAMIC

RESISTOR; 0402; OPEN; FORMFACTOR

R15

N/A

TOTAL

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Evaluates: MAX33014E,

MAX33015E

MAX33015E Shield

MAX33015E Shield Schematic

1 . 8 K

R 1 6

3 . 3 K

R 1 4

1 . 8 K

R 1 2

3 . 3 K

R 1 3

1 . 8 K

R 1 0

3 . 3 K

R 1 1

1 . 8 K

R 8

3 . 3 K

R 9

D 2

D 1

1 0 0 K

R 1 7

1 1

P B C 0 3 S A A N

G N D B

1 5

1 6

G N D A

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Evaluates: MAX33014E,

MAX33015E

MAX33015E Shield

MAX33015E Shield PCB Layout

1”

MAX33015E Shield—Top Silkscreen

MAX33015E Shield—Internal 2

1”

MAX33015E Shield—Top

MAX33015E Shield—Internal 3

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Evaluates: MAX33014E,

MAX33015E

MAX33015E Shield

MAX33015E Shield PCB Layout

1”

MAX33015E Shield—Bottom Silkscreen

MAX33015E Shield—Bottom

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Evaluates: MAX33014E,

MAX33015E

MAX33015E Shield

Revision History

REVISION REVISION

PAGES

CHANGED

DESCRIPTION

NUMBER

DATE

2/21

4/21

Initial release

—

Updated part number

1–9

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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.

2021 Maxim Integrated Products, Inc.

│ 9

MAX33015E [MAXIM]

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