Linear Technology LTC2936, DC2450A, DC2450A-A, DC2450A-B Demo Manual

DESCRIPTION

DEMO MANUAL DC2450A

LTC2936

Programming Board for Programmable Hex

Voltage Supervisor with EEPROM

The DC2450A programming board contains the cir­cuitry needed to program and verify the EEPROM of the

®

2936. This is its sole purpose. The LTC2936 comes

LTC

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

USB

Figure 1. LTC2936 Programming Setup Using DC2450A

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.

USB TO

2

C/SMBUS/PMBus

I

CONTROLLER (DC1613)

RIBBON

CABLE

LTC2936

PROGRAMMING BOARD

(DC2450A)

dc2450af

1

DEMO MANUAL DC2450A

BOARD PHOTO

SOCKET FOR LTC2936

TOP OF THE SPRING

LOADED SOCKET FRAME

DC1613 CONNECTOR J1

24-LEAD PLASTIC SSOP

ORDER OPTION B

SOCKET FOR LTC2936
24-LEAD PLASTIC QFN
ORDER OPTION A

ASEL0 J3

POWER SWITCH S1

USB +5V SCL SDA GND

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

ORDER INFORMATION

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

ASEL1 J2

2

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LTpowerPlay GUI SOFTWARE

DEMO MANUAL DC2450A

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

SYSTEM TREE OF

ALL DEVICES

CONFIGURATION SETTING FOR

ALL DEVICES IN SYSTEM TREE

to diagnose power issues when bringing up rails. LTpow

2

erPlay utilizes the DC1613 I

C/SMBus/PMBus Controller

-

to communicate with one of many potential targets, in­cluding 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
drivers and documentation. Download the software from

device

:

http://www.linear.com/ltpowerplay

Select "Help, View Online Help" from the LTpowerPlay
menu to access technical documents.

REAL TIME

TELEMETRY DATA

CHIP DASHBOARD (KEY

ASPECTS OF SELECTED CHIPS)

ASEL1 J2

Figure 3. Screenshot of the LTpowerPlay GUI

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3

DEMO MANUAL DC2450A

QUICK START PROCEDURE

The DC2450A programming board makes it easy to pro­gram and verify the LTC2936 EEPROM contents.

Place jumpers and switches in the following default

1.

positions:

ASEL1: L

ASEL0:

OFF

S1:

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

low. If you wish to program a device with an address
other than 0x50, adjust the ASEL jumpers appropriately.
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.

L

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

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.

4

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DC2450 F06

QUICK START PROCEDURE

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.

PIN 1 INDICATOR

Figure 6. DC2450A-A and IC Installed

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

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 7. DC2450A-A and IC Installed

Figure 9. Utilities > Programming Utility from the Menu

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5

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.

6

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SCHEMATIC DIAGRAM

DEMO MANUAL DC2450A

08-30-15

USE ONLY

FOR CUSTOMER

LTC CONFIDENTIAL

MIKE P.PRODUCTION

www.linear.com

APP ENG.

B

SCALE = NONE

-

R8

OPT

OPTOPT

10K 10K 10K 10K 10K

R13 R12 R11 R10 R9

OPT OPT

10K10K

R14R15

+3V3

OPT OPT

OPTOPTOPT

R7

10K 10K 10K

R6

10K10K

R5R4

GND GND GND

GNDGND

PCB DES.

OPT OPT

CUSTOMER NOTICE

R17

OPT

LTC2936_QFNPLASTRONICS_24QN50K15040

U1

+3V3

GND

1K

OPT

P$17

P$18

P$19

SCL

GPI2

GPI1

V6

P$20

V5

P$21

V4

P$22

V3

P$23

V2

P$24

V1

VPWR

VDD33

P$1

P$3

P$2

GND

P$13

P$14

P$15

P$16

G

PAD

SDA

CMP6

CMP5

GPIO2

GPIO1

P$12

CMP1

P$11

CMP2

P$10

CMP3

P$9

CMP4

P$8

GPIO3

ASEL0

ASEL1

GND

P$4

P$5

P$6

P$7

54

VPWR VDD33

321

U2

OPT

LTC2936_SSOPENPLAS

7

161718

19

SCL

SDA

CMP2

CMP1

GPIO3

GPIO2

GPIO1

V3V2V1V6V5

V4

GPI1

GND

1K

R19

OPT

GND

6

1011121314

15

GND

CMP4

CMP3

CMP6

CMP5

ASEL0

ASEL1

GPI2

8

9

2021222324

+3V3

+5V

4

S1

GND

OPT

100nF

C10

GND

GND

C5

OPT

100nF

+3V3

R18

10.0

+5V

GND

C11

OPT

100nF

GND

C4

OPT

100nF

SDASCL

GND

12

R3

1.30K

1.0uF

100nF

C2 C3

156

GND

ON

GREEN

GND

3

POWER

2

C1

1.0uF

GND

5

GND

WP

U3

24AA02

SCL

GND

SDA VCC

1234

R2

R1

GND

10.0K 10.0K

GND

1. ALL RESISTORS ARE 1% 0603.

2. ALL CAPACITORS ARE 16V 0603

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

123

GND

+3V3

4

J2

ASEL1

+3V3

123

GND

4

J3

ASEL0

J1

+5V_DONGLE

123456789

+5V (100mA)

SDA

GND

SCL

+3.3V(100mA)

ALRTB

101112

GPO_1

OUTEN

GPO_2

GND

AUXSCL

AUXSDA

CONN_DC1613

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7

DEMO MANUAL DC2450A

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

Copyright © 2004, Linear Technology Corporation

Linear Technology Corporation

8

1630 McCarthy Blvd., Milpitas, CA 95035-7417

[phone] ● FAX: [phone] ● www.linear.com

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LT 0116 • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 2016