DC2023A - Demo Manual

DEMO MANUAL DC2023A
16-Channel Power Supply
System Featuring the LTM2987
Power System Manager
Description
The DC2023A is a demonstration system for the LTM®2987
16-channel I2C/SMBus/PMBus power system manager
with EEPROM. The LTM2987 monitors and controls 16
power supply rails. The DC2023A demonstrates the ability of the LTM2987 to sequence, trim, margin, supervise,
monitor, and log faults for 16 power supply rails. Each
power supply channel’s output voltage is monitored and
the LTM2987 monitors its own internal die temperature.
The DC2023A is a single circuit board that contains sixteen
independent power supply rails. The board employs sixteen
LTC®3405A 300mA switch-mode regulators, which are
configured to be controlled by the LTM2987. The LTM2987
is available in a µModule® (micromodule) package and
contains two LTC2977 devices. This board provides a
sophisticated 16-channel digitally programmable power
supply system. The rail voltages are programmable within
the trim range shown in the Performance Summary.
This demonstration system is supported by the
LTpowerPlay™ graphical user interface (GUI) that enables
complete control of all the features of the LTM2987. Together, the LTpowerPlay software and DC2023A hardware
system create a powerful development environment for
designing and testing LTM2987 configuration settings.
These settings can be stored in the device’s internal
EEPROM or in a file. This file can later be used to order
pre-programmed devices or to program devices in a
production environment. The software displays all of
the configuration settings and real time measurements
from the LTM2987. Telemetry allows easy access and
decoding of the fault log created by the LTM2987. The
board comes pre-programmed with the EEPROM values
appropriate for the sixteen power supplies used on the
DC2023A. Just plug and play!
Multiple DC2023A board sets can be cascaded together
to form a high channel count power supply (see MultiBoard Arrays). This cascaded configuration demonstrates
features of the LTM2987 which enable timing and fault
information to be shared across multiple ICs. The user can
configure up to eight DC2023A boards, thereby controlling up to 128 separate power supply rails. Larger arrays
of LTM2987s are supported through programmable I2C
base address or bus segmentation.
The DC2023A demo board can be powered by an external
power supply, such as a +12VDC supply. Communication
with the software is provided through the DC1613 USB-toI2C/SMBus/PMBus Controller. The following is a checklist
of items which can be obtained from the LTC website or
LTC Field Sales.
• USB-to-I2C/SMBus/PMBus Controller (DC1613)
• LTpowerPlay Software
DC2023A Features
• Sequence, Trim, Margin, and Supervise Sixteen Power
Supplies
• Manage Faults, Monitor Telemetry, and Create Fault
Logs
• PMBus Compliant Command Set
• Supported by LTpowerPlay GUI
• Margin or Trim Supplies to 0.25% Accuracy
• Fast OV/UV Supervisors Per Channel
• Supports Multi-Channel Fault Management
• Automatic Fault Logging to Internal EEPROM
• Operates Autonomously without Additional Software
• Sixteen OV/UV VOUT and Two VIN Supervisors
• Telemetry Reads Back VIN, VOUT, and Temperature
• 16-Channel Time-Based Output Sequencer
• I2C/SMBus Serial Interface
• Integrated Decoupling Capacitors and Pull-Up Resistors
• Powered from 6V to 14VDC
• Available in 144-Lead 15mm × 15mm BGA
Design files for this circuit board are available at
http://www.linear.com/demo
L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks
and PowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
dc2023afa
1
DEMO MANUAL DC2023A
Performance Summary
POWER SUPPLY CHANNEL
Manager
Nominal Untrimmed Output Voltages
Specifications are at TA = 25°C
CH(0:7)
CH(8:15)
1/2 LTM2987
1/2 LTM2987
1.0V, 1.1V, 1.2V, 1.3V, 1.4V, 1.5V, 1.7V, 1.8V
2.0V, 2.2V, 2.5V, 2.7V, 3.0V, 3.1V, 3.2V, 3.3V
Rated Output Current
0.3A
Default Margin Range
±5%
Output Trim Range (VFS_VDAC = 1.38V)
+13/–19 %
Temperature
+11/–15%
2 Internal
Common Characteristics—Specifications Valid Over Full Operating Temperature Range
VALUE
PARAMETER
CONDITIONS
MIN
Supply Input Voltage Range
6
ADC Total Unadjusted Error
VIN_ADC ≥ 1V
ADC Voltage Sensing Input Range
Differential Voltage: VIN_ADC = (VSENSEP[n] – VSENSEM[n])
0
TYP
MAX
UNITS
14
V
±0.25
%
6
V
Glossary of Terms
The following list contain terms used throughout the
document.
Channel – The collection of functions that monitor, supervise, and trim a given power supply rail.
EEPROM – Non-volatile memory (NVM) storage used to
retain data after power is removed.
Margin – Term used typically in board level testing that
increases/decreases the output voltage to look for sensitivity/marginality problems
Monitor – The act of measuring voltage, current and
temperature readings.
PMBus – An industry standard power-management protocol with a fully defined command language that facilitates
communication with power converters and other devices
in a power system.
Rail – The final output voltage that the power supply
controller manages.
Supervise – The act of quickly responding to a voltage,
current, temperature condition that is compared to preprogrammed values (fault settings).
Trim – The act of adjusting the final output voltage. A
servo loop is typically used to trim the voltage.
NVM – Non-volatile memory, see EEPROM.
dc2023afa
2
DEMO MANUAL DC2023A
LTpowerPlay GUI SOFTWARE
LTpowerPlay is a powerful Windows-based development
environment that supports Linear Technology Power
System Management ICs with EEPROM, including the
LTM2987 16-channel PMBus Power System Manager.
The software supports a variety of different tasks. You
can use LTpowerPlay 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 multi-chip configuration file that
can be saved and reloaded at a later time. LTpowerPlay
provides unprecedented 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. LTpowerPlay utilizes the DC1613 I2C/SMBus/PMBus
Controller to communicate with one of many potential targets, including the DC2023A 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. The LTpowerPlay
software can be downloaded from:
http://www.linear.com/ltpowerplay
To access technical support documents for LTC power
system management products visit Help, View Online
Help on the LTpowerPlay menu.
Figure 1. Screen Shot of the LTpowerPlay GUI
dc2023afa
3
DEMO MANUAL DC2023A
Quick Start Procedure
The following procedure describes how to set up a DC2023A
demo system.
1.Download and install the LTpowerPlay GUI:
http://www.linear.com/ltpowerplay
6.Launch the LTpowerPlay GUI.
a. The GUI automatically identifies the DC2023A and
builds a system tree. The system tree on the left hand
side should look like this:
2.Remove the board from the ESD protective bag
and place it on a level surface. Connect the DC1613
I2C/SMBus/PMBus Controller to the DC2023A board
using the 12-pin ribbon cable.
3.Confirm that the CONTROL switch is set to the RUN
position.
4.Plug the USB to I2C/SMBus/PMBus Controller into a
USB port on your PC. The board should power up with
all power good LEDs and +5V LED illuminated green.
The USB-to-I2C/SMBus/PMBus Controller supplies
~100mA of current which should be sufficient for a
single demo board.
5.If multiple boards are being powered, connect a +12VDC
power supply with > 0.5A capacity to the VIN input jack
of the DC2023A.
Note: For multiple board arrays, the GUI automatically
ensures each device has a unique address. In this
scenario, it is recommended at this point to
store these addresses to NVM (EEPROM)
by clicking the “RAM to NVM” icon in the
toolbar.
Figure 2. Connecting DC2023A board and the DC1613 I2C/SMBus/PMBus Controller
dc2023afa
4
DEMO MANUAL DC2023A
Quick Start Procedure
b.A green message box will be displayed for a few
seconds in the lower left hand corner confirming
that the DC2023A is communicating:
7.The CONTROL switch is configured to control all 16
channels. Slide the switch to RUN to enable, OFF to
disable all channels. For multiple board arrays, the
CONTROL switch is wired to a signal that is common
across all boards. All CONTROL switches must be set
to the RUN position to enable all boards.
Loading a DC2023A Configuration (*.Proj) File with
the GUI
c. Save the demo board configuration to a (*.proj) file
by clicking the "Save" icon. This creates a backup
file. Name it whatever you want.
1.In the upper left hand corner of the GUI, File > Open
> browse to your *.proj file. This will load the file into
the GUI.
2.Click on the “Go Online” icon, then click on the
“PC->RAM” arrow. This loads the configuration into
the working RAM of the LTM2987.
3.To store the configuration to NVM (EEPROM), click on
the “RAM->NVM” icon.
Figure 3. DC2023A Top Side Details
dc2023afa
5
DEMO MANUAL DC2023A
Common Demo Board Operations
Margin All Rails
The LTM2987 power manager on the DC2023A not only
monitors each of the sixteen outputs but can margin the
outputs either high or low. Margining is the operation
that moves a rail either up or down for testing purposes.
It allows a system to be fully characterized over supply
limits without the use of external hardware or resources.
The GUI provides an easy way to margin all rails high
or all low by clicking one of four buttons. To invoke the
margining dialog, click the GroupOp icon in the toolbar.
The buttons labeled “ignore faults” will margin
without creating a fault even if the fault limits
are exceeded.
Each LTC2977 inside the module has a multiplexed ADC
that is used to provide voltage, current, and temperature
readback values. The telemetry plot in the GUI is similar to
a multi-channel oscilloscope which is capable of displaying
any parameter that is displayed in the telemetry window.
Due to the nature of a multiplexed ADC converter, it has
an associated ADC loop time. The total ADC loop time
(~100ms to 160ms) for a given channel is dependent on
the device’s configuration. Refer to the LTM2987 data
sheet for complete ADC timing specifications.
Creating a Fault
There is a pushbutton on the DC2023A board that is used
to force a fault and demonstrate the demo board’s ability to
detect it and respond according to the configuration. When
depressed, the pushbutton creates a fault on channel 10,
the 2.5V output (GUI channel U1:2). The user should see
all outputs power off, the fault LED momentarily illuminate,
the alert LED illuminate continuously, and all rails sequence
back on after a retry period. The user may also short any
power supply output indefinitely. This
is a good way to induce UV faults and
shows that a shorted channel will not be
damaged. Use a jumper wire or a coin
to short any output.
A look at the telemetry window shows the effect of the
margin high or margin low operation. The following screen
shot shows all rails going from nominal set points to
margin high, margin low, and back to nominal voltages.
dc2023afa
6
DEMO MANUAL DC2023A
Common Demo Board Operations
The LTM2987 has a feature which allows it to sequence its
channels off in a controlled manner, as opposed to turning
all rails off immediately. The SequenceOffOnFault bit in the
MFR_CONFIG_LTC2977 register sets this behavior on each
channel. The DC2023A demo board has been configured
to sequence off all channels when a fault occurs. Pressing
the “CREATE FAULT” pushbutton causes the FAULT pin
to be asserted low which triggers all rails to power down
based on the TOFF_DELAY times.
Clearing a Fault
To clear a fault, the user may click the CF icon in the GUI
or simply push the RESET pushbutton on the demo board.
In both cases, the red (+) on the CF icon and alert LED
on the board will be cleared. You will notice that all rails
are automatically re-enabled after a programmable retry
period. The alert LED may be cleared by pushing the Clear
Faults (CF) icon in the GUI. After clearing faults, the system
tree may remain “yellow” if any non-volatile fault
logs are present. For further information, see the
Working with the Fault Log section.
Resetting The DC2023A
A reset pushbutton is provided on the board. To reset all
devices on the DC2023A board and reload the EEPROM
contents into operating memory (RAM), press RESET
(SW1) on the DC2023A.
Figure 4 shows FAULTB asserting low, and each of the
channels sequencing off per the TOFF_DELAY settings.
Figure 5 shows the same except that the 3.0V rail (CH12)
does not have its SequenceOffOnFault bit set. The 3.0V
rail powers down immediately as defined by the fault
response setting.
Figure 4. Sequencing Off (SeqOffOnFault=1)
DC2023A LEDs
Each individual channel on DC2023A also has its own
green “power good” LED (CH0 through CH15). When USB
power (DC1613 Controller) or external power (6-14V jack)
is applied, the +5V green LED will illuminate, indicating
that the LTM2987 is powered. The red LEDs will illuminate
when an alert or a fault has occurred.
Figure 5. Sequencing Off (SeqOffOnFault=0)
dc2023afa
7
DEMO MANUAL DC2023A
Common Demo Board Operations
Sequencing Output Channels
The LTM2987 has been pre-programmed to different
TON_DELAY values for each channel. The TON_DELAY
parameter is applied to each device relative to its respective
CONTROL pin. When multiple demo boards are connected
together, all CONTROL pins are wire OR’d. Therefore the
TON delays are enforced relative to one edge. The same
applies to TOFF_DELAY values. When the CONTROL
switch is set to the OFF position, all rails will power down
sequentially based on each of the device’s TOFF_DELAY
values. Figure 6 shows an oscilloscope screen capture of
three output rails sequencing up and down in response
to the CONTROL pin.
Each channel has an LED which visually indicates if the
channel has power. When the CONTROL pin is switched
on and off, you will observe the relative on/off timing of
the 16 channels.
For the LTM2987, the TON_DELAY and TOFF_DELAY
values extend to 13.1 seconds, providing very long on
and off sequencing of power supply rails.
Figure 6. Sequencing Output Channels with DC2023A Using TON_DELAY and TOFF_DELAY
Figure 7. TON_DELAY Configuration
Figure 8. TOFF_DELAY Configuration
dc2023afa
8
DEMO MANUAL DC2023A
Common Demo Board Operations
Why Am I Off? Tool
Use the Why am I Off tool in the LTpowerPlay GUI to diagnose the reason a power supply channel is turned off.
The tool can be located in the top right corner of the GUI,
next to the Register Information tab. Hover your cursor
over this tab to show the tool.
Figure 9. Why Am I Off Tool in the LTpowerPlay GUI
dc2023afa
9
DEMO MANUAL DC2023A
Advanced Demo Board Operations
What Is a Fault Log?
A fault log is a non-volatile record of the power system
leading up to the time of fault. It holds the most recent
monitored values (up-time, voltage, current, temperature)
that can be analyzed to help determine the cause of the
fault. It is a powerful diagnostic feature of the LTM2987
on the DC2023A demo board.
Create a Fault and Fault Log
To create a fault log, you must create a fault, as described
in the Creating a Fault section. If multiple boards are
configured, select the appropriate device in the system
tree by clicking on the appropriate LTM2987 chip. We will
proceed to work with the fault log.
Working with the Fault Log
Once a fault has occurred, the Fault Log (FL) icon will show
a red (+) sign on it, indicating that the GUI has detected a
fault log in the device. Clicking the icon will bring
up a dialog box. Note that it is context sensitive.
Be sure that the desired device is selected in the
system tree.
Notice that the checkbox “Log to EEPROM on Fault” is
checked. Once a fault occurs, the device will automatically
write the fault log data to EEPROM (NVM). At this point,
the log is locked and will not change until it is cleared by
the user. To read the EEPROM log data, first click the “NVM
to RAM” button. At this point the RAM Log is locked and
not updated even though the telemetry readings continue.
Click the “Read RAM Log” button. The log data will appear
in the text box below.
dc2023afa
10
DEMO MANUAL DC2023A
Advanced Demo Board Operations
The log contains timestamp, up-time, channel voltage
readings, an input voltage reading, an on-chip temperature
reading, etc. There will be a number of loops; each loop
contains data obtained in one ADC loop time with the
most recent ADC loop data on top and the oldest data at
the bottom of the log. The up-time indicates, at the time
of fault, the amount of time the device has been powered
up or time since the previous reset.
In this case, the fault log will show that channel U1:2
faulted due to a VOUT_UV_FAULT condition. On the previous telemetry loop, the channel voltage reading was a
nominal value (2.5V).
Fault Sharing Setup in the GUI
Fault sharing provides a means of propagating a fault detected by a power system manager to other power system
managers via FAULT pins. Use the Fault Sharing Setup
Tool to configure the fault sharing in the GUI. Select the
LTM2987 labeled U0 in the system tree. Go to Utilities >
Fault Sharing Diagram. For more details on this topic, please
refer to the Fault Management section in the data sheet.
To clear the fault log, click the “Clear/Rearm EEPROM
Log” button. This allows the selected device to be ready
for a new fault event. To clear all faults, click the Clear
Faults (CF) icon.
The fault sharing dialog will appear as shown in Figure 10.
All Response and all Propagate switches are closed by default. In this configuration, a fault on one of the LTM2987
channels will shut down all 16 channels, and a fault on any
LTM2987 channel will propagate to all channels on the
DC2023A demo board since the fault pins are tied together.
Note: All FAULT pins on the LTM2987 are tied together on
the DC2023A demo board. These pins are open drain and
have a common pull-up resistor to provide a logic high
level (inactive). All FAULT pins are active low.
There are two types of actions to fault conditions: How a
channel responds to another channel’s fault and whether
a particular channel propagates a fault to other channels.
FAULT pins are bidirectional, meaning the device may drive
its FAULT pin low (output) or may respond to the FAULT
dc2023afa
11
DEMO MANUAL DC2023A
Advanced Demo Board Operations
pin when another device drives it low (input). Because all
FAULT pins are wire OR’d on the DC2023A, this hardware
configuration allows one to program each device’s fault
settings on a channel-by-channel basis. By default, the
LTM2987 is configured to shut down all channels if other
devices fault and to broadcast its own fault via the FAULT
pins. A fault on these channels will cause only that channel
to fault off. You can think of the “Response” switches as
“shut this channel down when another channel faults”, and
the “Propagate” switches as “drive a fault pin to broadcast
to other channels that this channel faulted”.
Fault Configuration Example
Let’s explore two different examples. Suppose we do not
want channel U0:0 (CH0 1.0V rail) to propagate its fault
to the other channels when it faults. And suppose we do
not want channel U0:1 (CH1 1.1V rail) to shut down in
response to another channel’s fault. We can configure the
switches as shown in Figure 11. Simply click the switches
to open/close. Click OK to close the dialog box. Click the
“PC->RAM” icon to write the changes to the DC2023A.
We can now create a fault on U0:0 (CH0) by shorting
the output to ground. You may use a coin or a jumper
to temporarily connect CH0 to the GND turret. You will
notice that the channel shuts off but the other channels
remain powered up because its fault is not propagated to
the other channels. After the retry period, channel U0:0
(CH0) will power back up. We can now observe the effect
of changing the response setting on U0:1 (CH1). If you
short U0:2 (CH2 1.2V rail) to ground, notice that all rails
shut down except U0:1 (CH1). This is an example of a
keep-alive channel that remains powered up independent
of faults on other channels.
Figure 10. Fault Sharing Utility in LTpowerPlay GUI
Figure 11. Updated Fault Sharing Configuration
Multiple DC2023A boards can be combined to control up
to 128 independent power supplies. Eight boards may
be cascaded. The number of boards is limited by an I/O
expander chip that has three address pins, allowing eight
different combinations. This setup demonstrates the coordinated fault responses and accurate time base shared
across multiple LTM2987 modules.
dc2023afa
12
DEMO MANUAL DC2023A
Setup Procedure for Multi-Board Arrays
Procedure:
1.Stack the boards side-by-side by plugging JP1 of one
board into JP2 of another DC2023A board.
2.Ensure different slave address settings for each of the
boards. The address of each board is set by the DIP
switch JP3 on the backside of the board. The setting
must be unique for each board in the array.
3.Plug in the +12V VIN power into one of the boards as
shown in Figure 12. Only one +12V power source is
allowed.
4.The USB to I2C/SMBus/PMBus Controller may be
plugged into any board. If no LTM2987s show up in
the GUI, click the hourglass icon to enumerate the I2C
bus and find the addresses of the parts. Go to step 2 to
ensure that each board has a unique DIP switch setting.
5.Since the individual CONTROL lines are connected
across the boards (CTRL is a common signal across
all boards in the array), make sure that all CONTROL
switches are set to the RUN position.
6.Relaunch LTpowerPlay. It will enumerate the entire
board array and build a representative system tree and
read all hardware settings into the GUI.
Attention: Once the GUI has launched, click the
“RAM->NVM” button in the toolbar to ensure that the slave
addresses are retained after a power off or reset.
Otherwise you may lose communication with
the slaves after a power cycle or reset event.
Figure 12. Array of Multiple DC2023A Demo Boards
dc2023afa
13
DEMO MANUAL DC2023A
Setup Procedure for Multi-Board Arrays
Ensuring Slave Addresses Do Not Conflict
There is a small DIP switch on the backside of the DC2023A.
It is used to set the slave address of an I/O expander which
provides for the addition of multiple boards to a setup.
Figure 13. DIP Switch Set to All Zeros (0x20)
The I/O expander has a base address of 0x20. The DIP
switch settings set the offset. The three switches that may
be changed are labeled A0, A1, A2. Examples below set
the boards to addresses 0x20 and 0x27.
Figure 14. DIP Switch Set to All Ones (0x27)
dc2023afa
14
DEMO MANUAL DC2023A
DC2023 Details—top
Table 1. DC2023A: Default Switch Configuration (Default Position Shown in Grey in the Figure Above)
REFERENCE DESIGNATOR SIGNAL NAME
USAGE
DEFAULT
JP3
SCLK, A0, A1, 2
DIP Switch Used to Set the Address Offset of LTM2987
OPEN
S1
CONTROL
Switch Used to Enable/Disable the CONTROL Input Pins of LTM2987
RUN
dc2023afa
15
DEMO MANUAL DC2023A
DC2023 Details—Bottom
dc2023afa
16
DEMO MANUAL DC2023A
Parts list
ITEM
QTY
REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
LTM2987 16-CH PWR SYSTEM MANAGER
LINEAR TECHNOLOGY: LTM2987CY
Required Circuit Components
1
1
U10
Additional Demo Board Circuit Components
2
16
C1, C2, C3, C4, C5, C6, C7, C8, C38, CAP CER 220pF 50V 10% NPO 0603
C39, C40, C41, C42, C43, C44, C45
MURATA: GRM188R71H221KA01D
3
18
C9, C10, C11, C12, C13, C14, C15,
C16, C19, C27, C28, C29, C30, C31,
C32, C33, C34, C46
CAP CER 10µF 10V 10% X5R 1210
MURATA: GRM32ER61A106KC01L
4
1
C17
CAP CER 10µF 25V 20% X5R 1210
MURATA: GRM32DR61E106MA12L
5
2
C18, C26
CAP CER 0.1µF 16V 10% X7R 0603
MURATA: GRM188R71C104KA01D
6
2
C20, C69
CAP CER 68pF 50V 5% NPO 0603
MURATA: GRM1885C1H680JA01D
7
17
C21, C47, C48, C49, C50, C51, C52,
C53, C54, C78, C79, C80, C81, C82,
C83, C84, C85
CAP CER 22µF 10V 10% X5R 1210
MURATA: GRM32ER61A226KE20L
8
1
C22
CAP CER 10nF 25V 10% X7R 0603
MURATA: GRM188R71E103KA01D
9
1
C23
CAP CER 47pF 50V 5% NPO 0603
MURATA: GRM1885C1H470JA01D
10
7
C24, C25, C35, C36, C37, C63, C66
CAP CER 1µF 16V 10% X7R 0603
MURATA: GRM188R71C105KA12D
11
16
C55, C56, C57, C58, C59, C60, C61,
C62, C70, C71, C72, C73, C74, C75,
C76, C77 (OPT.)
CAP CER 0.1µF 16V 10% X7R 0603
MURATA: GRM188R71C104KA01D
12
2
C64, C67
CAP CER 4.7µF 16V 10% X5R 0603
TDK: C1608X5R1C475K
13
1
C65
CAP TANT 47µF 16V 20% 7343
AVX: TPSD476M016R0150
14
1
C68
CAP CER 4.7pF 50V NP0 0603
MURATA: GRM1885C1H4R7CZ01D
15
1
D1
DIODE SCHOTTKY 30V CC SOT-323-3
STMICROELECTRONICS: BAT30CWFILM
16
16
L1, L2, L3, L4, L5, L6, L7, L8, L10,
L11, L12, L13, L14, L15, L16, L17
INDUCTOR SHLD POWER 4.7µH SMD
ABRACON: ASPI-0315FS-4R7M-T2
WURTH: 744029004 (ALTERNATE)
17
1
L9
INDUCTOR POWER 2.2µH 2.85A SMD
VISHAY: IHLP1616BZER2R2M01
18
17
LED3, P1, P2, P3, P4, P5, P6, P7,
P8, P9, P10, P11, P12, P13, P14,
P15, P16
LED GREEN SS TYPE BRIGHT SMD
PANASONIC - SSG: LNJ326W83RA
19
2
LED1, LED2
LED RED HI BRT SS TYPE LO CUR SM
PANASONIC - SSG: LNJ208R8ARA
20
17
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8,
Q9, Q10, Q11, Q12, Q13, Q14, Q15,
Q16, Q17
MOSFET N-CH 30V 900MA SOT323-3
DIODE INC: DMG1012UW-7
VISHAY/SILICONIX: SI1304BDL-T1-E3
(ALTERNATE)
21
33
RES 100k 1/10W 1% 0603 SMD
R1, R2, R3, R4, R5, R6, R7, R8,
R29, R58, R59, R60, R61, R62, R63,
R64, R65, R74, R75, R76, R77, R78,
R79, R80, R81, R119, R120, R121,
R122, R123, R124, R125, R126
YAGEO: RC0603FR-07100KL
22
2
R9, R107
RES 402k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07402KL
23
1
R10
RES 267k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07267KL
24
1
R11
RES 200k1/10W 5% 0603 SMD
YAGEO: RC0603FR-07200KL
25
1
R12
RES 158k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07158KL
26
1
R13
RES 133k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07133KL
27
1
R14
RES 115k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07115KL
28
1
R15
RES 88.7k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0788K7L
dc2023afa
17
DEMO MANUAL DC2023A
Parts list
ITEM
QTY
REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
29
1
R16
RES 80.6k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0780K6L
30
17
R17, R18, R19, R20, R21, R22, R23, RES 3.01k 1/10W 1% 0603 SMD
R24, R35, R39, R40, R41, R42, R43,
R44, R45, R46
YAGEO: RC0603FR-073K01L
31
10
R25, R32, R36, R47, R56, R57, R98, RES 10.0k 1/10W 1% 0603 SMD
R99, R100, R135
YAGEO: RC0603FR-0710KL
32
2
R26, R27
RES 698Ω 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07698RL
33
2
R28, R102
RES 73.2k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0773K2L
34
1
R30
RES 46.4k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0746K4L
35
1
R31 (OPT)
RES 10.0k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0710KL
36
2
R33, R38
RES 249 OHM 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07249RL
37
1
R34
RES 1.00k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-071KL
38
1
R37
RES ARRAY 10k 4 RES 1206
VISHAY/DALE: CRA06S08310K0JTA
39
1
R48
RES 66.5k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0766K5L
40
1
R49
RES 57.6k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0757K6L
41
1
R50
RES 47.5K OHM 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0747K5L
42
1
R51
RES 42.2k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0742K2L
43
1
R52
RES 36.5k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0736K5L
44
1
R53
RES 34.8k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0734K8L
45
1
R54
RES 33.2K OHM 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0733K2L
46
1
R55
RES 32.4k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-0732K4L
47
16
RES 470Ω 1/4W 5% 1210 SMD
R66, R67, R68, R69, R70, R71,
R72, R73, R127, R128, R129, R130,
R131, R132, R133, R134
VISHAY: CRCW1210470RJNEA
48
16
R82, R84, R86, R88, R90, R92,
RES 0.0Ω 1/10W 0603 SMD
R94, R96, R104, R106, R108, R110,
R112, R114, R116, R118
YAGEO: RC0603JR-070RL
49
1
R83
RES 182k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07182KL
50
1
R85
RES 191k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07191KL
51
1
R87
RES 196k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07196KL
52
1
R89
RES 205k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07205KL
53
1
R91
RES 226k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07226KL
54
1
R93
RES 243k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07243KL
55
1
R95
RES 274k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07274KL
56
1
R97
RES 301k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07301KL
57
1
R101
RES 2.49k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-072K49L
58
1
R103
RES 340k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07340KL
59
1
R105
RES 357k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07357KL
60
1
R109
RES 374k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07374KL
61
1
R111
RES 464k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07464KL
62
1
R113
RES 511k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07511KL
63
1
R115
RES 549K OHM 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07549KL
64
1
R117
RES 604k 1/10W 1% 0603 SMD
YAGEO: RC0603FR-07604KL
dc2023afa
18
DEMO MANUAL DC2023A
Parts list
ITEM
QTY
REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
65
16
U1, U2, U3, U4, U5, U6, U7, U8,
U13, U14, U15, U16, U17, U18,
U19, U20
IC BUCK SYNC ADJ 0.3A SOT23-6
LINEAR TECHNOLOGY:
LTC3405AES6#TRMPBF
66
1
U9
IC BUCK SYNC 2.5A 16QFN
LINEAR TECHNOLOGY: LTC3604IUD#PBF
67
1
U12
IC 2WIRE BUS BUFFER 8MSOP
LINEAR TECHNOLOGY: LTC4313CMS8-2#PBF
68
1
U11
IC DUAL 4A DIODES 16-MSOP
LINEAR TECHNOLOGY: LTC4415IMSE#PBF
69
1
U23
IC VREF SERIES PREC TSOT-23-6
LINEAR TECHNOLOGY:
LT6654BMPS6-1.25#TRMPBF
70
1
U21
IC I/O EXPANDER I2C 8B 20QFN
MICROCHIP: MCP23008-E/ML
71
1
U22
IC EEPROM 2KBIT 400KHZ SOT23-5
MICROCHIP TECHNOLOGY: 24AA02T-I/OT
72
1
U24
IC BUFFER DUAL NON-INV SC706
TI: SN74LVC2G34DCKR
CUI INC: PJ-002AH
Hardware – For Demo Board Only 73
1
J1
CONN PWR JACK 2.1X5.5MM HIGH CUR
74
1
J2
CONN HEADER 12POS 2MM STR DL PCB
FCI: 98414-G06-12ULF
75
1
JP1
CONN RECEPT 2MM DUAL R/A 14POS
SULLINS CONNECTOR
SOLUTIONS:NPPN072FJFN-RC
76
1
JP2
CONN HEADER 14POS 2MM R/A GOLD
MOLEX CONNECTOR CORPORATION:
87760-1416
77
1
JP3
SWITCH DIP 4POS HALF PITCH SMD
C&K COMPONENTS: TDA04H0SB1
78
4
MH1, MH2, MH3, MH4
SPACER STACKING #4 SCREW NYLON
KEYSTONE: 8831
79
1
S1
SW SLIDE DPDT 6VDC 0.3A PCMNT
C&K COMPONENTS: JS202011CQN
80
1
SW1
SWITCH TACTILE SPST-NO 0.05A 12V BLK
C&K COMPONENTS: PTS635SL25SMTR LFS
81
1
SW2
SWITCH TACTILE SPST-NO 0.05A 12V RED
C&K COMPONENTS: PTS635SK25SMTR LFS
82
29
TP1, TP2, TP3, TP4, TP5, TP6, TP7,
TP8, TP9, TP10, TP11, TP12, TP13,
TP14, TP15, TP16, TP17, TP18,
TP19, TP21, TP22, TP23, TP24,
TP25, TP26, TP27, TP28, TP29,
TP30
TERM SOLDER TURRET 0.219" 0.078"L
MILL-MAX: 2501-2-00-80-00-00-07-0
83
1
TP20
TERMINAL PIN TURRET 0.109" SOLDER
MILL-MAX: 2308-2-00-80-00-00-07-0
dc2023afa
19
C75
OPT
VSNSP_CH2
RUN_CH2
DACP_CH2
GND
VDD
C77
OPT
VSNSP_CH0
RUN_CH0
DACP_CH0
GND
R118
0
1
C85
22u/10V
1210
L1
4.7uH
GND
R1
100k
R9
402k
GND
R134
470
1210
GND
Q17
DMG1012UW-7
P1
GREEN
R17
3.01k
GND
4 VIN
R114
0
R113
511k
SW 3
5 VFB
GND
RUN 1
GND 2
6 MODE
U3
LTC3405AES6
1
C83
22u/10V
1210
L3
4.7uH
R124
100k
VDD
GND
R3
100k
R11
200k
GND
R132
470
1210
GND
Q15
DMG1012UW-7
P3
GREEN
R19
3.01k
LTM2987 CH2 Power Stage
GND
4 VIN
R117
604k
SW 3
5 VFB
GND
RUN 1
GND 2
6 MODE
U1
LTC3405AES6
1. ALL RESISTORS ARE 1% 0603.
2. ALL CAPACITORS ARE 16V 0603.
3. THE INTERMEDIATE BUS IS VDD=5.0V
C11
10u/10V
1210
C9
10u/10V
1210
VDD
R126
100k
VDD
2
3 1
2
2
3 1
2
GND
GND
C3
220p
C1
220p
VOUT_CH2
VOUT_CH0
CH2
1.2V
CH0
1.0V
C12
10u/10V
1210
C10
10u/10V
1210
C74
OPT
VSNSP_CH3
RUN_CH3
DACP_CH3
GND
VDD
C76
OPT
VSNSP_CH1
RUN_CH1
DACP_CH1
GND
VDD
1
C84
22u/10V
1210
L2
4.7uH
GND
R2
100k
R10
267k
GND
R133
470
1210
GND
Q16
DMG1012UW-7
P2
GREEN
R18
3.01k
RUN 1
R112
0
R111
464k
GND
SW 3
GND 2
1
C82
22u/10V
1210
L4
4.7uH
VDD
R4
100k
GND
GND
C4
220p
C2
220p
SCALE = NONE
APP ENG.
PCB DES.
R12
158k
GND
R131
470
1210
GND
Q14
DMG1012UW-7
P4
GREEN
R20
3.01k
GND
CUSTOMER NOTICE
GND
4 VIN
5 VFB
6 MODE
U4
LTC3405AES6
R123
100k
LTM2987 CH3 Power Stage
GND
R116
0
R115
549k
GND
SW 3
5 VFB
4 VIN
RUN 1
GND 2
6 MODE
U2
LTC3405AES6
R125
100k
VDD
LTM2987 CH1 Power Stage
2
3 1
2
2
3 1
20
2
LTM2987 CH0 Power Stage
-
B
VOUT_CH3
VOUT_CH1
1
CH3
1.3V
CH1
1.1V
www.linear.com
PRODUCTION
MIKE P.
LTC CONFIDENTIAL
FOR CUSTOMER
USE ONLY
01-29-14
DEMO MANUAL DC2023A
Schematic Diagram
dc2023afa
C71
OPT
VSNSP_CH6
RUN_CH6
DACP_CH6
GND
VDD
C73
OPT
VSNSP_CH4
RUN_CH4
DACP_CH4
GND
R110
0
1
C81
22u/10V
1210
L5
4.7uH
GND
R5
100k
R13
133k
GND
R130
470
1210
GND
Q13
DMG1012UW-7
P5
GREEN
R21
3.01k
GND
SW 3
4 VIN
R106
0
R105
357k
GND 2
5 VFB
GND
RUN 1
6 MODE
U7
LTC3405AES6
1
C79
22u/10V
1210
L7
4.7uH
R120
100k
VDD
GND
R7
100k
R15
88.7k
GND
R128
470
1210
GND
Q11
DMG1012UW-7
P7
GREEN
R23
3.01k
LTM2987 CH6 Power Stage
GND
4 VIN
R109
374k
SW 3
5 VFB
GND
RUN 1
GND 2
6 MODE
U5
LTC3405AES6
1. ALL RESISTORS ARE 1% 0603.
2. ALL CAPACITORS ARE 16V 0603.
3. THE INTERMEDIATE BUS IS VDD=5.0V
C15
10u/10V
1210
C13
10u/10V
1210
VDD
R122
100k
VDD
2
3 1
2
2
3 1
2
GND
GND
C7
220p
C5
220p
VOUT_CH6
VOUT_CH4
CH6
1.7V
CH4
1.4V
C16
10u/10V
1210
C14
10u/10V
1210
C70
OPT
VSNSP_CH7
RUN_CH7
DACP_CH7
GND
VDD
C72
OPT
VSNSP_CH5
RUN_CH5
DACP_CH5
GND
VDD
1
C80
22u/10V
1210
L6
4.7uH
GND
R14
115k
R6
100k
GND
R129
470
1210
GND
Q12
DMG1012UW-7
P6
GREEN
R22
3.01k
R104
0
R103
340k
GND
SW 3
GND 2
RUN 1
1
C78
22u/10V
1210
L8
4.7uH
VDD
R8
100k
GND
GND
C8
220p
C6
220p
SCALE = NONE
APP ENG.
PCB DES.
R16
80.6k
GND
R127
470
1210
GND
Q10
DMG1012UW-7
P8
GREEN
R24
3.01k
GND
CUSTOMER NOTICE
GND
4 VIN
5 VFB
6 MODE
U8
LTC3405AES6
R119
100k
LTM2987 CH7 Power Stage
GND
R108
0
R107
402k
GND
SW 3
5 VFB
4 VIN
RUN 1
GND 2
6 MODE
U6
LTC3405AES6
R121
100k
VDD
LTM2987 CH5 Power Stage
2
3 1
2
2
3 1
2
LTM2987 CH4 Power Stage
-
B
VOUT_CH7
VOUT_CH5
1
CH7
1.8V
CH5
1.5V
www.linear.com
PRODUCTION
MIKE P.
LTC CONFIDENTIAL
FOR CUSTOMER
USE ONLY
01-29-14
DEMO MANUAL DC2023A
Schematic Diagram
dc2023afa
21
C60
OPT
VSNSP_CH10
RUN_CH10
DACP_CH10
GND
VDD
C62
OPT
VSNSP_CH8
RUN_CH8
DACP_CH8
GND
R96
0
1
C54
22u/10V
1210
L10
4.7uH
GND
R58
100k
R48
66.5k
GND
1210
R73
470
GND
Q8
DMG1012UW-7
P9
GREEN
R39
3.01k
GND
4 VIN
R92
0
R93
243k
SW 3
5 VFB
GND
RUN 1
GND 2
6 MODE
U15
LTC3405AES6
1
C52
22u/10V
1210
L12
4.7uH
R79
100k
VDD
GND
R60
100k
R50
47.5k
GND
1210
R71
470
GND
Q6
DMG1012UW-7
P11
GREEN
R41
3.01k
LTM2987 CH10 Power Stage
GND
SW 3
4 VIN
R97
301k
GND 2
5 VFB
GND
RUN 1
6 MODE
U13
LTC3405AES6
1. ALL RESISTORS ARE 1% 0603.
2. ALL CAPACITORS ARE 16V 0603.
3. THE INTERMEDIATE BUS IS VDD=5.0V
C29
10u/10V
1210
C27
10u/10V
1210
VDD
R81
100k
VDD
2
3 1
2
2
3 1
2
GND
GND
C40
220p
C38
220p
VOUT_CH10
VOUT_CH8
CH10
2.5V
CH8
2.0V
C30
10u/10V
1210
C28
10u/10V
1210
C59
OPT
VSNSP_CH11
RUN_CH11
DACP_CH11
GND
VDD
C61
OPT
VSNSP_CH9
RUN_CH9
DACP_CH9
GND
VDD
1
C53
22u/10V
1210
L11
4.7uH
GND
R59
100k
R49
57.6k
GND
1210
R72
470
GND
Q7
DMG1012UW-7
P10
GREEN
R40
3.01k
RUN 1
R90
0
R91
226k
GND
SW 3
GND 2
1
C51
22u/10V
1210
L13
4.7uH
R61
100k
GND
GND
C41
220p
C39
220p
SCALE = NONE
APP ENG.
PCB DES.
R51
42.2k
GND
1210
R70
470
GND
Q5
DMG1012UW-7
P12
GREEN
3.01k
R42
GND
CUSTOMER NOTICE
GND
4 VIN
5 VFB
6 MODE
U16
LTC3405AES6
R78
100k
VDD
LTM2987 CH11 Power Stage
GND
R94
0
R95
274k
GND
SW 3
GND 2
5 VFB
4 VIN
RUN 1
6 MODE
U14
LTC3405AES6
R80
100k
VDD
LTM2987 CH9 Power Stage
2
3 1
2
2
3 1
22
2
LTM2987 CH8 Power Stage
-
B
VOUT_CH11
VOUT_CH9
1
CH11
2.7V
CH9
2.2V
www.linear.com
PRODUCTION
MIKE P.
LTC CONFIDENTIAL
FOR CUSTOMER
USE ONLY
01-29-14
DEMO MANUAL DC2023A
Schematic Diagram
dc2023afa
C56
OPT
VSNSP_CH14
RUN_CH14
DACP_CH14
GND
VDD
C58
OPT
VSNSP_CH12
RUN_CH12
DACP_CH12
GND
R88
0
1
C50
22u/10V
1210
L14
4.7uH
GND
R62
100k
R52
36.5k
GND
1210
R69
470
GND
Q4
DMG1012UW-7
P13
GREEN
R43
3.01k
GND
4 VIN
R84
0
R85
191k
SW 3
5 VFB
GND
RUN 1
GND 2
6 MODE
U19
LTC3405AES6
1
C48
22u/10V
1210
L16
4.7uH
R75
100k
VDD
GND
R64
100k
R54
33.2k
GND
1210
R67
470
GND
Q2
DMG1012UW-7
P15
GREEN
R45
3.01k
LTM2987 CH14 Power Stage
GND
4 VIN
R89
205k
SW 3
5 VFB
GND
RUN 1
GND 2
6 MODE
U17
LTC3405AES6
1. ALL RESISTORS ARE 1% 0603.
2. ALL CAPACITORS ARE 16V 0603.
3. THE INTERMEDIATE BUS IS VDD=5.0V
C33
10u/10V
1210
C31
10u/10V
1210
VDD
R77
100k
VDD
2
3 1
2
2
3 1
2
GND
GND
C44
220p
C42
220p
VOUT_CH14
VOUT_CH12
CH14
3.2V
CH12
3.0V
C34
10u/10V
1210
C32
10u/10V
1210
C55
OPT
VSNSP_CH15
RUN_CH15
DACP_CH15
GND
VDD
C57
OPT
VSNSP_CH13
RUN_CH13
DACP_CH13
GND
VDD
1
C49
22u/10V
1210
L15
4.7uH
GND
R63
100k
R53
34.8k
GND
1210
R68
470
GND
Q3
DMG1012UW-7
P14
GREEN
R44
3.01k
RUN 1
R82
0
R83
182k
GND
SW 3
GND 2
1
C47
22u/10V
1210
L17
4.7uH
VDD
R65
100k
GND
GND
C45
220p
C43
220p
SCALE = NONE
APP ENG.
PCB DES.
R55
32.4k
GND
1210
R66
470
GND
Q1
DMG1012UW-7
P16
GREEN
R46
3.01k
GND
CUSTOMER NOTICE
GND
4 VIN
5 VFB
6 MODE
U20
LTC3405AES6
R74
100k
LTM2987 CH15 Power Stage
GND
R86
0
R87
196k
GND
SW 3
5 VFB
4 VIN
RUN 1
GND 2
6 MODE
U18
LTC3405AES6
R76
100k
VDD
LTM2987 CH13 Power Stage
2
3 1
2
2
3 1
2
LTM2987 CH12 Power Stage
-
B
VOUT_CH15
VOUT_CH13
1
CH15
3.3V
CH13
3.1V
www.linear.com
PRODUCTION
MIKE P.
LTC CONFIDENTIAL
FOR CUSTOMER
USE ONLY
01-29-14
DEMO MANUAL DC2023A
Schematic Diagram
dc2023afa
23
VDD
VSNSP_CH0
GND
GND
FAULTB
SDA
SCL
ALERTB
CTRL
SHARE_CLK
RESETB
R36
10k
+3V3
RUN_CH7
DACP_CH7
VSNSP_CH7
RUN_CH6
DACP_CH6
VSNSP_CH6
RUN_CH5
DACP_CH5
VSNSP_CH5
RUN_CH4
DACP_CH4
VSNSP_CH4
RUN_CH3
DACP_CH3
VSNSP_CH3
RUN_CH2
DACP_CH2
VSNSP_CH2
RUN_CH1
DACP_CH1
VSNSP_CH1
RUN_CH0
GND
VSENSEP2
VSENSEM2
VDACP2
VDACM2
VOUT_EN2
VSENSEP1
VSENSEM1
VDACP1
VDACM1
VOUT_EN1
VSENSEP0
VSENSEM0
VDACP0
VDACM0
VOUT_ENO
GND
GND
GND
VPU
PU1
PU2
PU3
PU4
GND
GND
GND
B3
E3
D2
C2
E4
C6
D6
D5
U10
LTM2987CY
VPU
PU1
PU2
PU3
PU4
AVDD33
DVDD33
VDD25
WP
PWRGD
SHARE_CLK
WDI/RESETB
FAULTB00
FAULTB01
FAULTB10
FAULTB11
SDA
SCL
ALERTB
CONTROL0
CONTROL1
ASEL0
ASEL1
REFP
REFM
A4
A3
A2
A1
B1
B2
B4
C3
D3
C4
D4
C1
D1
E2
E1
F1
F3
F2
F5
F4
AVDD33
DVDD33
VDD25
WP
PWRGD
SHARE_CLK
WDI/RESETB
FAULTB00
FAULTB01
FAULTB10
FAULTB11
SDA
SCL
ALERTB
CONTROL0
CONTROL1
ASEL0
ASEL1
REFP
REFM
VPWR
VIN_SNS
VIN_EN
DNC
VPWR
VIN_SNS
VIN_EN
DNC
B5
A5
E5
C5
J6
K6
K5
H3
L3
K2
J2
L4
G4
G3
G2
G1
H1
H2
H4
J3
K3
J4
K4
J1
K1
L2
L1
M1
M3
M2
M5
M4
H5
G5
L5
J5
G7
G6
H7
H6
J7
VSENSEP6 G12
VSENSEM6 G11
VDACP6 G10
VDACM6 G9
VOUT_EN6 G8
VSENSEP5 H12
VSENSEM5 H11
VDACP5 H10
VDACM5 H9
VOUT_EN5 H8
VSENSEP4 J12
VSENSEM4 J11
VDACP4 J10
VDACM4
J9
VOUT_EN4
J8
VSENSEP3 K12
VSENSEM3 K11
VDACP3 K10
VDACM3 K9
VOUT_EN3 K8
VSENSEP2 L12
VSENSEM2 L11
VDACP2 L10
VDACM2 L9
VOUT_EN2 L8
VSENSEP7
VSENSEM7
VDACP7
VDACM7
VOUT_EN7
U0 U1
M7
M6
L7
L6
K7
VSENSEP1 M12
VSENSEM1 M11
VDACP1 M10
VDACM1 M9
VOUT_EN1 M8
VSENSEP0
VSENSEM0
VDACP0
VDACM0
VOUT_ENO
VSENSEP7
VSENSEM7
VDACP7
VDACM7
VOUT_EN7
VSENSEP6
VSENSEM6
VDACP6
VDACM6
VOUT_EN6
VSENSEP5
VSENSEM5
VDACP5
VDACM5
VOUT_EN5
VSENSEP4
VSENSEM4
VDACP4
VDACM4
VOUT_EN4
U0 U1
A7
A6
B7
B6
C7
A12
A11
A10
A9
A8
B12
B11
B10
B9
B8
C12
C11
C10
C9
C8
D12 VSENSEP3
D11 VSENSEM3
D10 VDACP3
D9 VDACM3
D8 VOUT_EN3
E12
E11
E10
E9
E8
F12
F11
F10
F9
F8
F7
F6
E7
E6
D7
GND
GND
GND
FAULTB
SDA
SCL
ALERTB
CTRL
RESETB
SHARE_CLK
+3V3
RUN_CH15
DACP_CH15
VSNSP_CH15
RUN_CH14
DACP_CH14
VSNSP_CH14
RUN_CH13
DACP_CH13
VSNSP_CH13
RUN_CH12
DACP_CH12
VSNSP_CH12
RUN_CH11
DACP_CH11
VSNSP_CH11
RUN_CH10
DACP_CH10
VSNSP_CH10
RUN_CH9
DACP_CH9
VSNSP_CH9
RUN_CH8
DACP_CH8
VSNSP_CH8
VDD
GND
GND
2Y 4
2 GND
3 2A
1Y 6
VCC 5
1 1A
1
1
R29
100k
LED1
RED
2
2
LED2
RED
R26
698
R27
698
CREATE_FAULT
+3V3
1
CUSTOMER NOTICE
PCB DES.
SCALE = NONE
APP ENG.
B
C66
1u
GND
1. ALL RESISTORS ARE 1% 0603.
2. ALL CAPACITORS ARE 16V 0603.
3. THE INTERMEDIATE BUS IS VDD=5.0V
GND
FAULTB
RESET
FAULT
VDD
U24
SN74LVC2G34DCK
GND
ALERTB
C22
10n
1
GND
RESETB
Q9
DMG1012UW-7
VOUT_CH10
CREATE FAULT BUTTON
3
2
24
DACP_CH0
-
www.linear.com
PRODUCTION
MIKE P.
LTC CONFIDENTIAL
FOR CUSTOMER
USE ONLY
01-29-14
DEMO MANUAL DC2023A
Schematic Diagram
dc2023afa
R99
10k
CONN_DC1613
+5V (100mA)
1
SDA
2
GND
3
SCL
4
+3.3V(100mA) 5
ALRTB
6
GPO_1
7
OUTEN
8
GPO_2
9
GND
10
AUXSCL
11
AUXSDA
12
J2
R100
10k
+3V3
GND
2
4
6
8
10
12
14
TP12
CTRL_P
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.
GP2
FAULT
R31
OPT
U21
MCP23008-E/ML
15 GP6
14 GP5
13 GP4
12 GP3
11
SCL_IN
R56
10k
+3V3
SDA_IN
EESDA
EESCL
+12V
UNUSED2
TP21
GND
1
2
3
4
GND
TP19
1
2
3
4
5
8
7
6
5
GND
C37
1u
GND
1
3
5
7
9
11
13
JP2
MALE
+3V3
R38
249
A2
A1
A0
RST\
NC
ENABLE VCC
SCLO SDAO
SDAI
SCLI
GND READY
U12
LTC4313CMS8
GND
1. ALL RESISTORS ARE 1% 0603.
2. ALL CAPACITORS ARE 16V 0603.
3. THE INTERMEDIATE BUS IS VDD=5.0V
GND
GND
TP11
SHARE_CLK
GND
1
3
5
7
9
11
13
SCL
TP22
RESETB
TP13
9
TP14
SDA
TP1
TP2
GND
FAULTB
ALERTB
SHARE_CLK
RESETB
UNUSED1
10
GP1
C26
100n
2
4
6
8
10
12
14
R37
10k, 4X
CRA06S
2
3
GND
R98
10k
+3V3
1
ON
4
SHARE_CLK
SDA
SCL
GND
OFF
JP3
TDA04H0SK1
+3V3
GND
C36
1u
2
S1
S1
3
1
6
4
GND
R57
10k
C69
68p
C17
10u/25V
1210
GND
GND
GND
VCC 4
U22
24AA02T-I/OT
3 SDA
2 GND
ITH
FB
RT
SGND
GND
C35
1u
C67
4.7u
1
2
3
4
U9
LTC3604IUD
MODE/SYNC
PGOOD
SW
SW
C46
10u/10V
1210
GND
GND
GND GND
12
11
10
9
C65
47u/16V
7343
WP 5
EEVCC
C68
4.7p
GND
1 SCL
R47
10k
GND
R102
73.2k
CONTROL
PAD
PAD
5
NC
FAULTB
GP0
8
16 GP7
PAD PAD
17 VSS
7
NC
18 VDD
13
14
15
16
TRACK/SS
RUN
VIN
VIN
8
7 VON
6 INTVCC
5 BOOST
RUN
GND
C23
47p
C20
68p
C21
22u/10V
1210
IBV_AUX
GND
EEVCC
VIN 4
3 DNC
U23
LT6654BMPS6-1.25
DNC 5
2 GND
1 GND VOUT 6
GND GND
R25
10k
R28
73.2k
GND
6-14V
POWER INPUT
3
2
1
CUSTOMER NOTICE
C18
100n
L9
2.2uH
IHLP-1616BZ
+12V
2
GND
1
GND
R32
10k
C25
1u
R30
46.4k
GND
R101
2.49k
SCALE = NONE
APP ENG.
PCB DES.
C64
4.7u
GND
R33
249
D1
BAT30CWFILM
GND
C63
1u
GND
3
ALERTB
INT
19 SCL
6
NC
20 SDA
B
1
GND
R34
1.0k
GND
www.linear.com
GND
VDD
01-29-14
GND
LTC CONFIDENTIAL
FOR CUSTOMER
USE ONLY
LED3
GREEN
R35
3.01k
TP20
MIKE P.
GND
C19
10u/10V
1210
IN1
OUT1 16
IN1
OUT1 15
EN1
nSTAT1 14
CLIM1 nWARN1 13
CLIM2 nWARN2 12
nEN2
nSTAT2 11
IN2
OUT2 10
IN2
OUT2 9
C24
1u
1
2
3
4
5
6
7
8
U11
LTC4415IMSE
PRODUCTION
EXP GND
SCL_IN
SDA_IN
CTRL
8
7
6
5
1
2
3
4
2
1
JP1
FEMALE
R135
10k
-
DEMO MANUAL DC2023A
Schematic Diagram
dc2023afa
25
DEMO MANUAL DC2023A
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
dc2023afa
26 Linear Technology Corporation
LT 0414 REV A • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507 ● www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2014
Similar pages