Linear Technology DC1962C Guida rapida alla configurazione

dc1508bf

DEMO MANUAL DC1508B

Description

LTC2974/LTC2975/LTC2977/

LTC2978/LTC2978A

Programming Board for PMBus

Power System Managers

The DC1508B programming board contains the circuitry

neededtoprogramandverifytheEEPROMoftheLTC2974,

LTC2975, LTC2977, LTC2978, and LTC2978A. This is its

sole purpose. The DC1508B is shipped with a clamshell

styleprogrammingsocketinstalled.TheEEPROMcontains

thefactorydefaultconfiguration.TheLTpowerPlay™*.proj

file that corresponds to the factory default can be found

in the GUI.

To properlyprogramandverifythecontentsoftheEEPROM,

download and install the LTpowerPlay software (GUI).

http://www.linear.com/ltpowerplay/

You also need a Linear Technology DC1613 USB to I2C/

SMBus/PMBus Controller.

DEMO SYSTEM REQUIRED HARDWARE

nWindows PC

nUSB-to-I2C/SMBus/PMBus Controller (DC1613)

nDC1508B-A or DC1508B-B

DEMO SYSTEM REQUIRED SOFTWARE

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

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

property of their respective owners.

Power System Manager Features

nSequence, Trim, Margin, Supervise Power Supplies

nManage Faults, Monitor Telemetry, Create Fault Logs

nPMBus Compliant Command Set

nSupported by LTpowerPlay GUI

nMargin or Trim Supplies to ±0.25% Accuracy

nFast OV/UV Supervisors per Channel

nSupports Multichannel Fault Management

nAutomatic Fault Logging to Internal EEPROM

nOperates Autonomously without Additional SW

nOV/UV VOUT and One VIN Supervisor

nTelemetry Reads Back VIN, VOUT, and Temperature

nTime-Based Output Sequencer

nI2C/SMBus Serial Interface

nAll Devices Available in 64-lead QFN Package

Design files for this circuit board are available at

http://www.linear.com/demo/DC1508B

Figure 1. LTC297x Programming Setup Using DC1508B

dc1508bf

DEMO MANUAL DC1508B

There are two versions of the DC1508B. Each version

of the programming board comes with only one socket.

See Table 1.

LTpowerPlay is a powerful Windows-based development

environment that supports Linear Technology Power

System Management ICs with EEPROM. The software

supports a variety of different tasks. You can use LTpow-

erPlay to evaluate Linear Technology ICs by connecting

to a demo board system. LTpowerPlay can also be used

in an offline mode (with no hardware present) in order to

build a multichip configuration file that can be saved and

BoarD photo

orDer information

LtpowerpLay GUi software

Figure 2. DC1508B Top Side Details (DC1508B-A Shown)

Table 1.

Order Number Supported Devices

DC1508B-A LTC2977, LTC2978, LTC2978A

DC1508B-B LTC2974, LTC2975

reloaded at a later time. LTpowerPlay provides unprec-

edented diagnostic and debug features. It becomes a

valuablediagnostic toolduring boardbring-up toprogram

or tweak the power management scheme in a system or to

diagnose power issues when bringing up rails. LTpower-

Play utilizes the DC1613 I2C/SMBus/PMBus Controller to

communicatewithoneofmanypotentialtargets,including

the DC1508B programming board or a customer board.

dc1508bf

DEMO MANUAL DC1508B

The software also provides an automatic update feature

to keep the software current with the latest set of device

drivers and documentation. The LTpowerPlay software

can be downloaded from:

http://www.linear.com/ltpowerplay

LtpowerpLay GUi software

To access technical support documents for LTC Power

System Management products visit Help, View Online

Help on the LTpowerPlay menu.

Figure 3. Screenshot of the LTpowerPlay GUI

dc1508bf

DEMO MANUAL DC1508B

QUick start proceDUre

The DC1508B programming board makes it easy to

program and verify the EEPROM contents of the device.

1. Place jumpers and switches in the following default

positions.

WP: OFF

ASEL1: L

ASEL0: L

S1: OFF

NOTE: By default, the ASEL jumpers are both set to low.

If you wish to program a device with an offset address

otherthan0x5C,adjusttheASELjumpersappropriately.

Consult device data sheet for details.

2. Connect the DC1613 controller to your PC. Plug the

ribbon cable into connector J1 of the DC1508B pro-

gramming board.

3. Openthesocketlid.PlacetheICinsidewithpin1located

in the upper left corner. See Figure 4.

Figure 4. Open Clamshell Lid

4. Close lid. It will snap into place. See Figure 5.

NOTE: Removal and insertion of the IC should be done

with either tweezers or a vacuum suction device, and

also with the power switch S1 set to OFF.

Figure 5. DC1613 Ribbon Cable Attached and Lid Closed

5. Set the power switch S1 to the ON position. The VDD33

LED will illuminate, indicating the on-chip regulator is

providing internal power.

6. Launch the LTpowerPlay software from your PC. Select

Utilities>Programming Utility from the menu. Click

“…” next to the selection box and select a .proj file to

program the device.

dc1508bf

DEMO MANUAL DC1508B

QUick start proceDUre

7. LTpowerPlay is ready to program/verify the device.

a. Click the Program and Verify button, and wait for the

process to complete.

b. After the process is complete, you will see Successfully

Programmed and Verified Device in the status bar at

the bottom.

8. Priortoremovingthedeviceandprogramminganother,

power must be removed from the device. Set the power

switch S1 to the OFF position. Open the socket lid.

Remove the device with tweezers or a vacuum tool.

The USB ribbon cable may remain connected to the

programming board.

9. To program another device, repeat Steps 3 through 5,

then Steps 7 and 8. LTpowerPlay’s Programming Utility

does not need to be closed.

dc1508bf

DEMO MANUAL DC1508B

parts List

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 1 U1 (DC1508B-A) or

U2 (DC1508B-B) IC SOCKET, SPRING LOADED, 64-QFN PLASTRONICS: 64QN50S19090-A

2 3 C1, C2, C7 CAP CER 1µF 16V 10% X7R 0603 MURATA: GRM188R71C105KA12D

3 8 C3, C4, C5, C6, C8, C9, C10, C11 CAP CER 0.1µF 16V 10% X7R 0603 MURATA: GRM188R71C104KA01D

4 1 J1 CONN HEADER 12POS 2mm STR DL PCB FCI: 98414-G06-12ULF

5 1 JP1 CONN HEADER 0.100 INCH 1X3POS WÜRTH: 613 003 111 21

6 2 JP2, JP3 CONN HEADER 0.100 INCH 1X4POS WÜRTH: 613 004 111 21

7 1 LED1 LED GREEN HIGH BRIGHT ESS SMD PANASONIC: LNJ326W83RA

8 4 MH1, MH2, MH3, MH4 STAND-OFF NYLON 1/4" SNAP IN WÜRTH: 702 931 000

9 5 R1, R2, R4, R7, R8 RES 10.0k 1/10W 1% 0603 SMD YAGEO: RC0603FR-0710KL

10 1 R3 RES 1.3k 1/10W 1% 0603 SMD YAGEO: RC0603JR-071K3L

11 0 R5, R6 (OPTIONAL) RES 10.0k 1/10W 1% 0603 SMD

12 3 SH1, SH2, SH3 CONN SHUNT 0.1IN 2POS BLACK WÜRTH: 609 002 134 21

13 1 S1 SW SLIDE DPDT 6VDC 0.3A PCMNT C&K: JS202011CQN

14 4 TP1, TP2, TP3, TP4 TERM SOLDER TURRET 0.219" 0.078"L MILL-MAX: 2501-2-00-80-00-00-07-0

15 1 U3 2k I2C SERIAL EEPROM MICROCHIP TECHNOLOGY: 24AA02T-I/OT

dc1508bf

DEMO MANUAL DC1508B

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

FIDUCIALS

2 1

LTC2977

LTC2978

LTC2978A

GREEN

(OPT)

(OPT) GNDGND GND GND

GND

CONN_DC1613

10.0K 10.0K

10.0K

24AA02

GND

GNDGND

1.0uF

POWER

GND

1.30K

1.0uF

100nF

GND

ASEL1

GND

ASEL0

GND 100nF

GND

100nF

1.0uF

100nF

+5V +5V

+3V3 +3V3

+3V3

GND GND

100nF

GND GND

100nF

GND GND

10.0K

GND

LTC2974

LTC2975 38

R1 R2

R8R6

LED1

3 4

JP1

JP2

JP3

C11

C10

GND

ALERTB

SCL SCL

SCL

SDA SDA

SDA

FAULTB_PU

ASEL0

ASEL1

+5V

WDI/RESET

+5V_DONGLE

1 PRODUCTION MIKE P. 10-28-13

1. ALL RESISTORS ARE 1% 0603.

2. ALL CAPACITORS ARE 16V 0603

REFP

GND

VSENSEP0

VSENSEM0

VOUT_EN0

VOUT_EN1

VOUT_EN2

VOUT_EN3

DNC

VIN_SNS

VPWR

VDD33

VDD25

TSENSE0

TSENSE1

PWRGD

SHARE_CLK

GND

CONTROL3

WDI/RESETB

FAULTB0

REFM

FAULTB1

TSENSE2

SDA

SCL

ALERTB

CONTROL0

CONTROL1

TSENSE3

ASEL0

ASEL1

AUXFAULTB

CONTROL2

GND

PAD

ISENSEM2

ISENSEP2

ISENSEM3

ISENSEP0

ISENSEM0

ISENSEP1

ISENSEM1

ISENSEP3

VDAC1

VDAC0

IIN_SNSM

VSENSEP3

VSENSEM3

VIN_SNS_CAP

GND/NC

IIN_SNSP

VSENSEM2

VSENSEP2

VSENSEM1

VDAC2

VDAC3

GND/NC

VSENSEP1

CUSTOMER NOTICE

SCALE = NONE

LTC CONFIDENTIAL

FOR CUSTOMER

USE ONLY

PCB DES.

APP ENG. www.linear.com

VDACM0

VSENSEM0

VSENSEM6

VSENSEP7

VSENSEM7

VOUT_ENO

VOUT_EN1

VOUT_EN2

VOUT_EN4

VOUT_EN5

VOUT_EN6

VOUT_EN7

VIN_EN

DNC

VIN_SNS

VPWR

VDD33

VDD25

PWRGD

SHARE_CLK

FAULTB00

FAULTB01

FAULTB10

VDACP1

FAULTB11

SDA

SCL

ALERTB

ASEL0

CONTROL0

CONTROL1

ASEL1

REFP

REFM

VSENSEP0

VOUT_EN3

WDI/RESETB

VDACP0

PAD

VSENSEP2

VDACM2

VSENSEP3

VDACM1

VSENSEP1

VSENSEM1

VDACP2

VSENSEM2

VDACM4

VSENSEM4

VDACP5

VSENSEM3

VDACP3

VDACM3

VSENSEP4

VDACP4

VSENSEP5

VDACM7

VSENSEP6

VDACM5

VDACM6

VDACP6

VDACP7

VSENSEM5

+5V (100mA)

SDA

GND

SCL

+3.3V(100mA)

ALRTB

GPO_1

OUTEN

GPO_2

GND

AUXSCL

AUXSDA

SCL

GND

SDA VCC

dc1508bf

DEMO MANUAL DC1508B

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

 LINEAR TECHNOLOGY CORPORATION 2014

LT 0514 • PRINTED IN USA

DEMONSTRATION BOARD IMPORTANT NOTICE

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

Thisdemonstration board (DEMO BOARD)kitbeing sold orprovidedby Linear Technologyisintended for useforENGINEERING 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. 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.

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

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