Linear Technology Analog Devices DC1890A Guida rapida alla configurazione

dc1890afa

DEMO MANUAL DC1890A

Description

LTC3883EUH

Programming Board for Single Phase Step-Down

DC/DC Controller with Digital Power Management

Demonstrationcircuit1890Acontainsthecircuitry needed

to program and verify the EEPROM of the LT C

3883 and

LTC3883-1. That is its only purpose. The DC1890A is

shipped with a LTC3883 installed in the clamshell style

programming socket. The EEPROM contains the factory

default configuration. The LTpowerPlay™ .proj file that

corresponds to the factory default can be found in the GUI.

In order to properly verify the contents of the EEPROM,

download and install the LTpowerPlay software (GUI). The

software can be downloaded from:

http://www.linear.com/ltpowerplay

You also need a Linear Technology USB to I2C/SMBUS/

PMBUS Controller, DC1613A or DC1427A.

DEMO SYSTEM REQUIRED HARDWARE

nWindows PC

nUSB to I2C/SMBUS/PMBUS Controller, DC1613A or

DC1427A

nDC1890A

DEMO SYSTEM REQUIRED SOFTWARE

nLTpowerPlay

L, LT, LTC, LTM, Linear Technology, PolyPhase and the Linear logo are registered trademarks

and LTpowerPlay is a trademark of Analog Devices, Inc. All other trademarks are the property of

their respective owners.

LTC3883 FEATURES

nPMBus/I2C compliant serial interface

nTelemetry readback includes VIN, IIN, VOUT, IOUT, tem-

perature and faults

nProgrammable voltage, current limit, digital soft-start/

stop, sequencing, margining, OV/UV/OC and frequency

synchronization (250kHz to 1MHz)

n±0.5% output voltage accuracy over temperature

nIntegrated 16-bit ADC

nIntegrated high side current sense amplifier

nInternal EEPROM and fault logging

nIntegrated powerful N-channel MOSFET gate drivers

nWide VIN range: 4.5V to 24V

nVOUT range: 0.5V to 5.4V

nAnalog current mode control loop

nAccurate PolyPhase

current sharing

nAuto calibration of inductor DCR

nAvailable in a 32-pin (5mm × 5mm) QFN package

Design files for this circuit board are available at

http://www.linear.com/demo/DC1890A

Figure 1. LTC3883 Programming Setup Using DC1890A

USB to

I2C/PMBus Controller

DC1613A or DC1427A

LTC3883

PROGRAMMING

BOARD DC1890A

RIBBON CABLEUSB CABLE

dc1890a F01

dc1890afa

DEMO MANUAL DC1890A

Quick start proceDure

Demonstration circuit 1890A makes it easy to program

and verify the EEPROM contents of the LTC3883.

1. Make sure jumpers are in the following positions:

JUMPER POSITION FUNCTION

JP1 OFF Write Protection of LTC3883

JP2 ON Write Protection of Identification

EEPROM

2. Open the lid of the socket SKT1. Verify there is an IC

inside. See Figure 2.

3. Close the lid. It will snap into place.

NOTE. Removal and insertion of the IC should be done

with either a tweezers or a vacuum suction device.

4. Plug one end of the USB cable to your PC. Plug other

endofUSBcable into theI2C/SMBUS/PMBUScontroller.

5. If you have a DC1427A, plug the ribbon cable into J1.

See Figure 3. If you have a DC1613A, plug the ribbon

cable into J2. See Figure 3 and Figure 4.

6. On your PC, launch LTpowerPlay. LTpowerPlay will

identify the DC1890A and launch the appropriate GUI.

See Figure 5.

NOTE. You will see a undertemperature (UT) fault. This

isnormalsincethetemperaturesensingpinisgrounded.

Ignore this fault at the moment.

7. Change the GUI parameters according to your system

requirements. Or, you can click button to open

an existing project file.

8. After you finish the design, click to save the pro-

ject file.

dc1890afa

DEMO MANUAL DC1890A

Quick start proceDure

Figure 2. Open Shell. Verify IC Installed

Figure 3. DC1427A Ribbon Cable Installation Figure 4. DC1613A Ribbon Cable Installation

dc1890afa

DEMO MANUAL DC1890A

Quick start proceDure

Figure 5. LTpowerPlay Interface of Programming the LTC3883

POWERING DOWN THE BOARD BETWEEN

PROGRAMMING OPERATIONS

Disconnect the USB cable from the DC1427A/DC1613A

before removing or inserting a LTC3883 into the pro-

gramming socket.

WHAT YOU CAN DO WITH THE DC1890A

1. Compare the contents of the EEPROM in the LTC3883

against your project or hex file.

2. Reprogram the contents of the EEPROM in the LTC3883

using your project or hex File.

3. Verify the EEPROM within the DC1890A contains the

factory defaults.

a. From the LTpowerPlay, load the factory defaults project

file. This file is located at:

C:\Program Files\Linear Technology\LTpowerPlay\

projectfiles\democricuits\LTC3883_datasheet_defaults.

proj

b. Click the Verify button.

dc1890afa

DEMO MANUAL DC1890A

parts List

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 4 C11, C14, C16, C20 CAP, 0.1µF, X7R, 16V, 10%, 0603 AVX, 0603YC104KAT2A|NIC, NMC0603X7R104K16TRPF

2 1 C13 CAP, 10µF, X5R, 6.3V, 10%, 1206 AVX, 12066D106KAT2A

3 2 C15, C17 CAP, 4.7µF, X5R, 6.3V, 10%, 1206 AVX, 12066D475KAT2A

4 2 C18, C19 CAP, 1µF, TANT, 50V, 10%, 2312 AVX, TAJC105K050RNJ

5 1 LED1 LED, RED, COLORLESS DIFFUSED, 0603 OSRAM, LS L29K-H1J2-1-Z

6 1 LED2 LED, GREEN, COLORLESS DIFFUSED, 0603 OSRAM, LG L29K-G2J1-24-Z

7 3 Q1, Q2, Q3 XSTR, MOSFET, P-CH, 20V, 5.9A, SOT-23,

TO-236

VISHAY, SI2365EDS-T1-GE3

8 1 Q4 XSTR, MOSFET N-CHAN, 60V, 115mA, SOT-23 FAIRCHILD SEMI, 2N7002

9 1 Q5 XSTR, MOSFET, N-CH, 30V, SOT-363 VISHAY, SI1416EDH-T1-GE3

10 3 R19, R21, R28 RES, 1kΩ, 1%, 1/8W, 0805, AEC-Q200 PANASONIC, ERJ-6ENF1001V

11 9 R20, R23, R24, R25,

R26, R29, R31, R33, R40

RES, 10kΩ, 1%, 1/8W, 0805 PANASONIC, ERJ6ENF1002V|VISHAY,

CRCW080510K0FKEA

12 1 R22 RES, 100kΩ, 1%, 1/8W, 0805, AEC-Q200 PANASONIC, ERJ-6ENF1003V

13 1 R27 RES, 0.499Ω, 1%, 1/8W, 0805, AEC-Q200 STACKPOLE ELECTRONICS, RMCF0805FTR499

14 3 R30, R34, R39 RES, 1Ω, 1%, 1/8W, 0805 PANASONIC, ERJ-6RQF1R0V

15 3 R35, R36, R37 RES, 4.99kΩ, 1%, 1/8W, 0805 PANASONIC, ERJ-6ENF4991V

16 1 SKT1 CONN, TEST AND BURN IN SOCKET, MALE,

6.04mm × 2.03mm, 0.50mm

LORANGER, 03714 411 6218D

17 1 U2 IC, MEMORY, EEPROM, 2Kb (256x8), TSSOP-8,

400kHz

MICROCHIP, 24LC025-I/ST

18 1 U3 IC, OVERVOLTAGE/OVERCURRENT PROTEC,

TSOT-23 8-PIN

LINEAR TECHNOLOGY, LTC4361CTS8-2#PBF|LINEAR

TECHNOLOGY, LTC4361CTS8-2#TRPBF

Additional Demo Board Circuit Components

19 0 R32, R38 RES, OPTION, 0805

20 0 C12 CAP, 0603, OPTION

Hardware: For Demo Board Only

21 1 J1 CONN, HDR, MALE, 2x7, 2mm, THT, VERT,

SHROUDED

MOLEX, 87831-1420

22 1 J2 CONN, HDR, SHROUDED, 2x6, 2mm, THT, VERT FCI, 98414-G06-12ULF

23 2 JP1, JP2 CONN, HDR, MALE, 1x3, 2mm, THT, STR SAMTEC, TMM-103-02-L-S

24 4 MH1, MH2, MH3, MH4 STANDOFF, NYLON, SNAP-ON, 0.250" KEYSTONE, 8831|WURTH ELEKTRONIK, 702931000

25 2 SH1, SH2 CONN, SHUNT, FEMALE, 2 POS, 2mm SAMTEC, 2SN-BK-G

26 13 TP1, TP2, TP3, TP4, TP5,

TP6, TP7, TP8, TP9,

TP10, TP11, TP12, TP13

TEST POINT, TURRET, 0.064", MTG. HOLE MILL-MAX, 2308-2-00-80-00-00-07-0

dc1890afa

DEMO MANUAL DC1890A

schematic Diagram

D D

C C

B B

A A

ON (3883)

OFF

DC1890A.DSN

P. B. 08/25/11

5x5

32-Pin

QFN

1206

GND

PGND

CHPWR

VDD33

VDD25

ALERTb

GPIOB

+3.3V +5V

SCL

SDA

PARTIN ENB

SIZE

SCALE:

CAGE CODE DWG NO REV

SHEET OF

FILENAME:

TITLE

CONTRACT NO.

APPROVALS DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CUSTOMER NOTICE

DC1890A

Thursday, August 25, 2011

P. B. 08/25/11

HELLMUTH W. 08/25/11

PROGRAMMING BOARD FOR LTC3883XUH

SIZE

SCALE:

CAGE CODE DWG NO REV

SHEET OF

FILENAME:

TITLE

CONTRACT NO.

APPROVALS DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CUSTOMER NOTICE

DC1890A

Thursday, August 25, 2011

P. B. 08/25/11

HELLMUTH W. 08/25/11

PROGRAMMING BOARD FOR LTC3883XUH

SIZE

SCALE:

CAGE CODE DWG NO REV

SHEET OF

FILENAME:

TITLE

CONTRACT NO.

APPROVALS DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CUSTOMER NOTICE

DC1890A

Thursday, August 25, 2011

P. B. 08/25/11

HELLMUTH W. 08/25/11

PROGRAMMING BOARD FOR LTC3883XUH

REVISION HISTORY

DESCRIPTION DATE

APPROVED

ECO REV

HELLMUTH W.

1ST PROTOTYPEA 08/25/11

REVISION HISTORY

DESCRIPTION DATE

APPROVED

ECO REV

HELLMUTH W.

1ST PROTOTYPEA 08/25/11

REVISION HISTORY

DESCRIPTION DATE

APPROVED

ECO REV

HELLMUTH W.

1ST PROTOTYPEA 08/25/11

C15

4.7µF

R21

1.00K

R29

10.0K

SKT1

LTC3883XUH

VIN_SNS

IIN_SNS

ISNSP

ISNSM

SYNC

SCL

SDA

ALERTb

GPIOB

PGOOD

RUN

DNC

ASEL

FREQ_CFG

VOUT_CFG

DNC

VTRIM_CFG 17

VDD25 18

WP 19

SHARE_CLK 20

VDD33 21

SW 22

TG 23

BOOST 24

PGND 25

BG 26

INTVCC 27

VIN 28

ITH 29

VSENSEP 30

VSENSEM 31

TSNS 32

GND 33

TP6

TP5

R19

1.00K

C16

0.1µF

R25

10.0K

TP0101K-T1-E3

LTC4361CTS8-2

OUT 2

GATEP

GND

SENSE

6GATE 7

PWRGD 8

C17

4.7µF

TP0101K-T1-E3

JP1

TP3

R26

10.0K

R20 10.0K

R23

10.0K

R40

10.0K

TP1

C14

0.1µF

TP4

TP13

R27

0.499

C12

0.01µF Opt.

TP0101K-T1-E3

R24

10.0K

TP2

SI1470DH-T1-E3

R28

1.00K

C11

0.1µF

LED2

GREEN LED

2N7002

R22

100K

C13

10.0µF 1206

LED1

RED LED

dc1890afa

DEMO MANUAL DC1890A

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-

tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

schematic Diagram

D D

C C

B B

A A

DC1890A.DSNNONE

OFF

EE WP

NOTE: J1 AND J2 CONNECT TO RIBBON CABLES

OF I2C / SMBUS CONTROLLER (DONGLE)

P. B. 08/25/11

14 Pin

12 Pin

DC1613

DC1427

ENB

SDA

SCL

+3.3V

PARTIN

+5V

+3.3V

+5V

SCL

PARTIN

SDA

ENB

SIZE

SCALE:

CAGE CODE DWG NO REV

SHEET OF

FILENAME:

TITLE

CONTRACT NO.

APPROVALS DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CUSTOMER NOTICE

DC1890A

Thursday, August 25, 2011

P. B. 08/25/11

HELLMUTH W. 08/25/11

PROGRAMMING BOARD FOR LTC3883XUH

SIZE

SCALE:

CAGE CODE DWG NO REV

SHEET OF

FILENAME:

TITLE

CONTRACT NO.

APPROVALS DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CUSTOMER NOTICE

DC1890A

Thursday, August 25, 2011

P. B. 08/25/11

HELLMUTH W. 08/25/11

PROGRAMMING BOARD FOR LTC3883XUH

SIZE

SCALE:

CAGE CODE DWG NO REV

SHEET OF

FILENAME:

TITLE

CONTRACT NO.

APPROVALS DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

CUSTOMER NOTICE

DC1890A

Thursday, August 25, 2011

P. B. 08/25/11

HELLMUTH W. 08/25/11

PROGRAMMING BOARD FOR LTC3883XUH

R33

10.0K

R32

1 Opt.

TP9

C19

1.0µF

R36

4.99K

TP12

TP10

TP11

TP7

TP8

R31

10.0K

R39

24LC025-I/SN

VSS

4SDA 5

SCL 6

WP 7

VCC 8

R38

1 Opt.

AUXP 1

SDA 2

GND 3

SCL 4

LGKPWR 5

ALERTB 6

GPIO_1

OUTEN 8

GPIO_2 9

GND 10

AUXSCL 11

AUXSDA 12

R34

R37

4.99K

C20

0.1µF

R35

4.99K

V+ 1

3.3V 2

GND 3

SCK/SCL 4

MISO 5

CS 6

MOSI/SDA 7

GND 8

EESDA 9

EEVCC 10

EESCL 11

EEGND 12

GND 13

GPIO_1 14

C18

1.0µF

R30

JP2

dc1890afa

DEMO MANUAL DC1890A

 LINEAR TECHNOLOGY CORPORATION 2014

LT 0317 REV A • PRINTED IN USA

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LT C ) provides the enclosed product(s) under the following AS IS conditions:

This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT

OR EVALUATION PURPOSES ONLY and is not provided by LT C for commercial use. As such, the DEMO BOARD herein may not be complete

in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety

measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union

directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.

If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date

of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU

OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS

FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR

ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LT C from all claims

arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all

appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or

agency certified (FCC, UL, CE, etc.).

No License is granted under any patent right or other intellectual property whatsoever. LT C assumes no liability for applications assistance,

customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.

LT C currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.

Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and

observe good laboratory practice standards. Common sense is encouraged.

This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LT C applica-

tion engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

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