Linear Technology DC2277A Quick setup guide

DC2277af

DEMO MANUAL DC2277A

Description

LTC3886 UKG Package

Programming Board for Dual Output

Step Down DC/DC Controller with

Digital Power System Management

Demonstration circuit 2277A contains the circuitry needed

to program and verify the EEPROM of the LT C

3886 in the

UKG package and that is its only purpose. The DC2277A

is shipped with a LTC3886 installed in the clamshell style

programming socket and its 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

n Windows PC

n USB to I2C/SMBus/PMBus Controller, DC1613A or

DC1427A

n DC2277A

DEMO SYSTEM REQUIRED SOFTWARE

n LTpowerPlay™

LTC3886 FEATURES

n PMBus/I2C compliant serial interface

n Telemetry read-back includes VIN,IIN,VOUT,IOUT,

temperature and faults

n Programmable voltage,current limit,digital soft-start/

stop, sequencing,margining,control loop compensa-

tion, OV/UV and frequency synchronization (100kHz to

750kHz)

n ±0.5% output voltage accuracy over temperature

n Integrated 16-bit ADC and 12-bit DAC

n Internal EEPROM and fault logging

n Integrated powerful N-channel MOSFET gate drivers

n Wide VIN range: 4.5V to 60V

n VOUT range: 0.5V to 13.8V

n Supports power-up into pre-biased load

n Analog current mode control loop

n Accurate PolyPhase

current sharing for up to 6 phases

n Available in a 52-lead (7mm × 8mm) QFN package

Design files for this circuit board are available at

http://www.linear.com/demo/DC2277A

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

and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

Figure1. LTC3886 Programming Setup Using the DC2277A

USB to

I2C/PMBus Dongle

DC1613A or DC1427A

LTC3886

PROGRAMMING

BOARD DC2277A

RIBBON CABLEUSB CABLE

dc2277a F01

DC2277af

DEMO MANUAL DC2277A

Quick start proceDure

Demonstration circuit 2277A makes it easy to program

and verify the EEPROM contents of the LTC3886 in the

UKG package.

1. Make sure jumpers are in the following positions:

JUMPER POSITION FUNCTION

JP1 OFF Write Protection of LTC3886

JP2 ON Write Protection of Identification EEPROM

2. Open the lid of the socket.Verify there is an LTC3886

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

end of USB cable into the I2C/SMBus/PMBus controller.

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

If you have a DC1613A, plug the ribbon cable into J2.

See Figure 3.

6. On your PC,launch LTpowerPlay.LTpowerPlay will

identify the DC2277A and launch the appropriate GUI.

See Figure 4.

NOTE. You will see an Under Temperature (UT) Fault.

This is normal since the temperature sensing pin is

grounded. 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 project

file

Figure2. Open Shell. Verify IC Installed

DC2277af

DEMO MANUAL DC2277A

Quick start proceDure

Figure3. DC1613A Ribbon Cable Installation

DC2277af

DEMO MANUAL DC2277A

‘System Tree’ View

‘Conﬁg’ View

‘Telemetry’ View

‘Idealized On/OFF Waveforms’ View

‘Chip Dashboard’

View

‘Quick Inspect’

View

‘Telemetry Plot’

View

Toolbar

Figure4. LTpowerPlay Interface of Programming the LTC3886

Quick start proceDure

POWERING DOWN THE BOARD BETWEEN

PROGRAMMING OPERATIONS

Disconnect the USB cable from the DC1427A/DC1613A

before removing or inserting a LTC3886UKG into the

programming socket.

WHAT YOU CAN DO WITH THE DC2277A

1. Compare the contents of the EEPROM in the

LTC3886UKG against your project or hex file.

2. Reprogram the contents of the EEPROM in the

LTC3886UKG using your project or hex file.

3. Verify the EEPROM within the DC2277A contains the

factory defaults.

n From the LTpowerPlay interface,load the factory

defaults project file. This file is located at:

C:\Program Files\Linear Technology\LTpowerPlay\

project files\ltc3886\datasheet_defaults.proj

n Click the Verify button.

DC2277af

DEMO MANUAL DC2277A

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 NIC, NMC0603X7R104K16TRF

2 1 C12 CAP., 0.01µF, X7R, 25V, 10%, 0603 AVX, 06033C103KAT2A

3 1 C13 CAP., 10µF, X5R, 6.3V, 10%, 1206 AVX, 12066D106KAT2A

4 2 C15, C17 CAP., 4.7µF, X5R, 6.3V, 10%, 1206 AVX, 1206ZD475KAT2A

5 2 C18, C19 CAP., TANTALUM, 1µF, 10%, 50V AVX,TAJC105K050RNJ

6 1 LED1 LED 3X2mm 650nm RED WTR CLR SMD RΩ, SML-012V8TT86

7 1 LED2 LED 3X2mm 560nm GRN WTR CLR SMD RΩ, SML-012P8TT86

8 1 Q2 MOSFET P-CH 20V 5.2A SOT-23-3 VISHAY, SI2365EDS-T1-GE3

9 1 Q4 MOSFET N-CH 60V 115mA SOT-23 FAIRCHILD SEMI, 2N7002

10 1 Q5 MOSFET N-CH 30V 3.9A SC-70-6 VISHAY, SI1416EDH-T1-GE3

11 3 R19, R21, R28 RES., 1k, 1/8W, 1%, 0805 PANASONIC, ERJ-6ENF1001V

12 7 R20, R24, R26, R29, R31, R33, R40 RES., 10k, 1/8W, 1%, 0805 PANASONIC, ERJ-6ENF1002V

13 1 R22 RES., 100k, 1/8W, 1%, 0805 PANASONIC, ERJ-6ENF1003V

14 1 R27 RES., 0.499Ω, 1/8W, 1%, 0805 STACKPOLE ELEC. RMCF0805FTR499

15 3 R30, R34, R39 RES., 1Ω, 1/8W, 1%, 0805 PANASONIC, ERJ-6RQF1R0V

16 3 R35, R36, R37 RES., 4.99k, 1/8W, 1%, 0805 PANASONIC, ERJ-6ENF4991V

17 1 U1 I.C., LTC3886UKG, 60V DUAL OUTPUT STEP-DOWN

CONTROLLER

LINEAR TECH., LTC3886UKG#PBF

18 1 U2 I.C., OVERVOLTAGE/OVERCURRENT PROTECTION

CONTROLLER

LINEAR TECH., LTC4361CTS8-2#PBF

19 1 U3 I.C., 2k I2C SERIAL EEPROM SOIC-8 MICROCHIP, 24LC024-I/SN

20 1 SKT1 SOCKET LORANGER, 03713 531 6217

Additional Demo Board Circuit Components:

1 0 R38 RES., OPTION, 0805 OPTION

2 0 R41, R42, R43, R44, R45, R46 RES., OPTION, 0603 OPTION

Hardware: For Demo Board Only

1 2 JP1, JP2 CONN., HEADER, 1X3, 2mm WURTH ELEKTRONIK, 62000311121

2 2 XJP1, XJP2 SHUNT, 2mm WURTH ELEKTRONIK, 60800213421

3 1 J1 CONN, HEADER 14POS 2mm VERT GOLD MOLEX, 87831-1420

4 1 J2 CONN, HEADER 12POS 2mm 2ROW GOLD FCI CONNECTOR, 98414-G06-12ULF

5 12 TP1, TP2, TP3, TP4, TP5, TP6, TP7,

TP8, TP10, TP11, TP12, TP13

TERMINAL TURRET DBL .084"L KEYSTONE, 1593-2

6 4 (STAND-OFF) STANDOFF, NYLON, SNAP-ON, 0.500" KEYSTONE, 8833

DC2277af

DEMO MANUAL DC2277A

schematic Diagram

D D

C C

B B

A A

ON (3886)

OFF

1206

GND

TG0

CHPWR

VDD33

VDD25

FAULT0B

ALERTB

NOTE: UNLESS OTHERWISE SPECIFIED

1. ALL RESISTORS AND CAPACITORS ARE 0805.

12060603

0603

0603 1206

0603

Partin

+3.3V +5V

SCL

SDA

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

PRODUCTION1 1-04-16

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

PRODUCTION1 1-04-16

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

PRODUCTION1 1-04-16

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

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.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

Tuesday, January 12, 2016

PROGRAMMING BOARD FOR LTC3886UKG

LTC3886UKG

DEMO CIRCUIT 2277A

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

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.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

Tuesday, January 12, 2016

PROGRAMMING BOARD FOR LTC3886UKG

LTC3886UKG

DEMO CIRCUIT 2277A

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

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.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

Tuesday, January 12, 2016

PROGRAMMING BOARD FOR LTC3886UKG

LTC3886UKG

DEMO CIRCUIT 2277A

C14

0.1µF

R41

OPT

TP6 R28

1.00K

C16

0.1µF

C15

4.7µF

TP3

LED2

GREEN LED

LTC4361CTS8-2

OUT 2

GATEP

GND

SENSE

6GATE 7

PWRGD 8

SI1416EDH-T1-GE3

R21

1.00K

C12

0.01µF

R44

OPT R46

OPT

LTC3886UKG

TG0

2SW0

ISENSP_0

ISENSM_0

TSNS0

VSENSP_0

VSENSM_0

ISENSP_1

ISENSM_1

ITH0R

ITH0

SYNC

SCL

SDA

ALERTB

FAULT0B

FAULT1B

RUN0

RUN1

ASEL0

ASEL1

VOUT0_CFG

VOUT1_CFG

FREQ_CFG

PHAS_CFG

VDD25 27

WP 28

SHARE_CLK 29

VDD33 30

ITH1 31

ITH1R 32

PG1 33

PG0 34

VSENSP_1 35

TSNS1 36

TG1 38

SW1 39

BOOST1 40

BG1 42

EXTVCC 43

INTVCC 44

IINM 46

IINP 47

VIN 48

BG0 50

BOOST0 52

GND 53

C11

0.1µF

R27

0.499

LED1

RED LED

2 1

JP1

R20

10.0K

R22

100K

TP4

C13

10.0µF

SI2365EDS-T1-E3

3 2

R26

10.0K

C17

4.7µF

TP5

R24

10.0K

R19

1.00K

R43

OPT

R40

10.0K

R45

OPT

R29

10.0K

TP2

2N7002

R42

OPT

TP13

TP1

DC2277af

DEMO MANUAL DC2277A

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

OFF

EE WP

NOTE: J1 AND J2 CONNECT TO RIBBON CABLES

OF I2C / SMBUS CONTROLLER (DONGLE)

14 Pin

12 Pin

DC1613

DC1427

ENB

SDA

SCL

+3.3V

+5V

6032

60320603

+3.3V

+5V

SCL

SDA

ENB

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

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.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

Tuesday, January 12, 2016

PROGRAMMING BOARD FOR LTC3886UKG

LTC3886UKG

DEMO CIRCUIT 2277A

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

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.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

Tuesday, January 12, 2016

PROGRAMMING BOARD FOR LTC3886UKG

LTC3886UKG

DEMO CIRCUIT 2277A

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

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.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

Tuesday, January 12, 2016

PROGRAMMING BOARD FOR LTC3886UKG

LTC3886UKG

DEMO CIRCUIT 2277A

TP11

C18

1.0µF

R38

OPT

R37

4.99K

R36

4.99K

R31

10.0K

TP12

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

R30

TP10

TP8

24LC024-I/SN

VSS

4SDA 5

SCL 6

WP 7

VCC 8

R34

TP7

R33

10.0K

C19

1.0µF

C20

0.1µF

JP2

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

R35

4.99K

R39

DC2277af

DEMO MANUAL DC2277A

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ●FAX: (408) 434-0507 ●www.linear.com

 LINEAR TECHNOLOGY CORPORATION 2016

LT 0316 • 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 LTC 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 LTC 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. LTC assumes no liability for applications assistance,

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

LTC 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 LTC applica-

tion engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Analog Devices Inc.:

DC2277A

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