Linear Technology LTC2936 Guida rapida alla configurazione

dc2450af

DEMO MANUAL DC2450A

DESCRIPTION

LTC2936

Programming Board for Programmable Hex

Voltage Supervisor with EEPROM

The DC2450A programming board contains the cir-

cuitry needed to program and verify the EEPROM of the

LTC

2936. This is its sole purpose. The LTC2936 comes

in either a 24-pin SSOP or a 24-pin QFN package. The

DC2450A-A supports the QFN and the DC2450A-B sup-

ports the SSOP package.

The LTpowerPlay™GUI stores configuration settings into

the LTC2936 EEPROM. Download and install the software

from this location:

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

The DC2450A communicates with LTpowerPlay through

a Linear Technology

DC1613 USB to I2C/SMBus/PMBus

Controller.

What Can You Do with the DC2450A

1. Compare the contents of the device’s EEPROM against

any Project File. (Verify)

2. Reprogram the contents of the device’s EEPROM using

any Project File. (Program and Verify)

Demo System Required Hardware

n Windows PC

n USB-to-I2C/SMBus/PMBus Controller (DC1613)

n DC2450A-A or DC2450A-B

(LTC2936 component must be ordered separately.)

Demo System Required Software

n LTpowerPlay

LTC2936 Features

n Supervise 6 Power Supplies

n I2C Adjustable UV and OV Trip Points

n Guaranteed Threshold Accuracy: ±1% (Maximum)

n I2C/SMBus Interface

n Internal EEPROM

n Six Comparator Outputs

n Fast Comparator Response Time: 7.5µs

n 256 Programmable Thresholds per Channel

n Three Range Settings per Channel

n Two General Purpose Inputs

n Three General Purpose Inputs/Outputs

n Programmable Output Delays

n Can Be Powered from 3.3V, or 3.4V to 13.9V

n 24-Pin 4mm x 5mm QFN and SSOP Packages

Design files for this circuit board are available at

http://www.linear.com/demo/DC2450A

L, LT, LTC, LTM, Linear Technology and the Linear logo, µModule 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. LTC2936 Programming Setup Using DC2450A

RIBBON

CABLE

USB

USB TO

I2C/SMBUS/PMBus

CONTROLLER (DC1613)

LTC2936

PROGRAMMING BOARD

(DC2450A)

dc2450af

DEMO MANUAL DC2450A

ORDER INFORMATION

Figure 2. DC2450A Top Side Details (DC2450A-B Shown)

BOARD PHOTO

There are two versions of the DC2450A. Each version of the programming board comes with only one socket. See table below.

ORDER NUMBER SUPPORTED DEVICES

DC2450A-A LTC2936 24-Pin (5mm × 4mm) Plastic QFN

DC2450A-B LTC2936 24-Lead Plastic SSOP

TOP OF THE SPRING

LOADED SOCKET FRAME

SOCKET FOR LTC2936

24-LEAD PLASTIC SSOP

ORDER OPTION B

SOCKET FOR LTC2936

24-LEAD PLASTIC QFN

ORDER OPTION A

ASEL0 J3

ASEL1 J2

DC1613 CONNECTOR J1

POWER SWITCH S1

USB +5V SCL SDA GND

dc2450af

DEMO MANUAL DC2450A

Figure 3. Screenshot of the LTpowerPlay GUI

LTpowerPlay GUI SOFTWARE

LTpowerPlay is a powerful Windows-based development

environment that supports Linear Technology Power

System Management ICs with EEPROM, including the

LTC2936 Programmable Hex Voltage Supervisor. The

software supports a variety of different tasks. You can use

LTpowerPlay to evaluate Linear Technology ICs by con-

necting to a demo board system. LTpowerPlay features an

offline mode to build a multi-chip configuration file for later

use with hardware. LTpowerPlay provides unprecedented

system level diagnostic and debug features. It becomes a

valuable diagnostic tool during board bring-up to program

or tweak the power management scheme in a system or

to diagnose power issues when bringing up rails. LTpow-

erPlay utilizes the DC1613 I2C/SMBus/PMBus Controller

to communicate with one of many potential targets, in-

cluding the DC2450A demo system or a customer board.

The software also provides an automatic update feature

to keep the software current with the latest set of device

drivers and documentation. Download the software from:

http://www.linear.com/ltpowerplay

Select "Help, View Online Help" from the LTpowerPlay

menu to access technical documents.

ASEL1 J2

SYSTEM TREE OF

ALL DEVICES

CONFIGURATION SETTING FOR

ALL DEVICES IN SYSTEM TREE

REAL TIME

TELEMETRY DATA

CHIP DASHBOARD (KEY

ASPECTS OF SELECTED CHIPS)

dc2450af

DEMO MANUAL DC2450A

QUICK START PROCEDURE

The DC2450A programming board makes it easy to pro-

gram and verify the LTC2936 EEPROM contents.

1. Place jumpers and switches in the following default

positions:

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 address

otherthan0x50,adjusttheASELjumpersappropriately.

Consult device data sheet for details.

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

the ribbon cable into connector J1 of the DC2450A

programming board. See Figure4.

Figure 4. DC2450A-B with Open Socket

NOTE: Removal and insertion of the IC should be done

with either tweezers or a vacuum device, and also with

the power switch S1 set to OFF.

3. If using DC2450A-B, open the pinch contacts of the

socket by pressing down and holding the top of the

spring loaded socket frame. Place the IC inside the

socket with pin 1 located in the upper left corner. Slowly

release the top of socket frame, allowing contacts to

pinch together and grip IC leads. See Figure5.

Figure 5. DC2450A-B and IC Installed

dc2450af

DEMO MANUAL DC2450A

4. If using DC2450A-A, ﬂip open the socket lid and place

the IC inside with pin 1 located in the upper left corner.

See Figure6.

DC2450 F06

PIN 1 INDICATOR

Figure 6. DC2450A-A and IC Installed

Close the lid. It will snap into place. See Figure7.

Figure 7. DC2450A-A and IC Installed

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. The

device programming utility shown in Figure8 should

pop up automatically. If it does not then select the

Utilities>Programming Utility from the menu shown

in Figure9.

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

from your system to program the device. See Figure8.

Figure 8. Selecting a .proj File to Program

Figure 9. Utilities > Programming Utility from the Menu

QUICK START PROCEDURE

dc2450af

DEMO MANUAL DC2450A

QUICK START PROCEDURE

8. Click the “Program and Verify” button (see Figure10)

and wait for the process to complete. After the process

is complete, you will see “Successfully Programmed

and Verified Device”, in the status bar at the bottom.

See Figure11.

Figure 10. Device Programming Utility.

Figure 11. Programmed and Verified Device

9. Set the power switch S1 to the OFF position prior to

removing the device.

Repeat steps above to program additional devices.

LTpowerPlay’s Programming Utility does not need to

be closed. The ribbon cable may remain connected to

the programming board.

dc2450af

DEMO MANUAL DC2450A

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

OPT

OPT OPT

OPT OPT OPT

OPTOPT

OPTOPTOPT

OPT

OPT OPT

OPT

GREEN

CONN_DC1613

10.0K 10.0K

24AA02

GND

1.0uF

POWER

GND

1.30K

GND

+3V3

100nF

GND

+3V3

GND

100nF

GND

+3V3

10K 10K 10K 10K 10K

10K 10K 10K

GND GND GND

10K10K

GNDGND

+5V

+3V3

100nF

GND

1.0uF

LTC2936_QFNPLASTRONICS_24QN50K15040

LTC2936_SSOPENPLAS

GND

+3V3

GND

100nF

GND

10.0

R1 R2

ASEL0

ASEL1

R13 R12 R11 R10 R9

R6 R7 R8

R14R15

R5R4

C2 C3

P$1

P$24

P$23

P$4

P$3

P$2

P$5

P$6

P$7

P$8

P$9

P$10

P$11

P$12

P$13

P$14

P$15

P$16

P$17

P$18

P$19

P$20

P$21

P$22

C10

C11

R17

R19

R18

GND

+5V

+5V_DONGLE

SDASCL

08-30-15

1. ALL RESISTORS ARE 1% 0603.

2. ALL CAPACITORS ARE 16V 0603

MIKE P.PRODUCTION

CUSTOMER NOTICE

SCALE = NONE

LTC CONFIDENTIAL

FOR CUSTOMER

USE ONLY

PCB DES.

APP ENG. www.linear.com

+5V (100mA)

SDA

GND

SCL

+3.3V(100mA)

ALRTB

GPO_1

OUTEN

GPO_2

GND

AUXSCL

AUXSDA SCL

GND

SDA VCC

VPWR

VDD33

GPIO3

ASEL0

ASEL1

CMP4

CMP3

GND

CMP2

SCL

GPI2

GPI1

GPIO2

GPIO1

SDA

CMP1

CMP6

CMP5

PAD

VPWR VDD33

GPIO3

ASEL0

ASEL1

CMP4

CMP3

GND

CMP2

SCL

GPI2

GPI1

GPIO2

GPIO1

SDA

CMP1

CMP6

CMP5

dc2450af

DEMO MANUAL DC2450A

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

LT 0116 • PRINTED IN USA

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LTC) 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 application

engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

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