Linear Technology Analog Devices DC1890A Quick setup guide

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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

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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.

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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

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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.

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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

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DEMO MANUAL DC1890A
schematic Diagram
5
5
4
4
3
3
2
2
1
1
D D C C B B A A
ON (3883) OFF WP
DC1890A.DSN
P. B. 08/25/11
5x5 32-Pin QFN
1206
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: [phone] Fax: [phone]
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
A
DC1890A
Thursday, August 25, 2011
12
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: [phone] Fax: [phone]
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
A
DC1890A
Thursday, August 25, 2011
12
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: [phone] Fax: [phone]
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
A
DC1890A
Thursday, August 25, 2011
12
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
1
IIN_SNS
2
ISNSP
3
ISNSM
4
SYNC
5
SCL
6
SDA
7
ALERTb
8
GPIOB
9
PGOOD
10
RUN
11
DNC
12
ASEL
13
FREQ_CFG
14
15
VOUT_CFG
DNC
16
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
Q1
TP0101K-T1-E3
U3 LTC4361CTS8-2
ON
1
OUT 2
GATEP
3
GND
4
IN
5
SENSE
6GATE 7
PWRGD 8
C17
4.7µF
Q3
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.
Q2
TP0101K-T1-E3
R24
10.0K
TP2
Q5
SI1470DH-T1-E3
1
3
4
2
5
6
R28
1.00K
C11
0.1µF
LED2
GREEN LED
Q4
2N7002
R22
100K
C13
10.0µF 1206
LED1
RED LED

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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
5
5
4
4
3
3
2
2
1
1
D D C C B B A A
DC1890A.DSNNONE
ON 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: [phone] Fax: [phone]
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
A
DC1890A
Thursday, August 25, 2011
22
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: [phone] Fax: [phone]
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
A
DC1890A
Thursday, August 25, 2011
22
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: [phone] Fax: [phone]
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
A
DC1890A
Thursday, August 25, 2011
22
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
1
U2
24LC025-I/SN
A0
1
A1
2
A2
3
VSS
4SDA 5
SCL 6
WP 7
VCC 8
R38
1 Opt.
J2
AUXP 1
SDA 2
GND 3
SCL 4
LGKPWR 5
ALERTB 6
7
GPIO_1
OUTEN 8
GPIO_2 9
GND 10
AUXSCL 11
AUXSDA 12
R34
1
R37
4.99K
C20
0.1µF
R35
4.99K
J1
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
1
JP2

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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
Copyright © 2004, Linear Technology Corporation