ADP1043A Full Bridge

ADP1043A Evaluation Board Quarter
Brick Full Bridge
Reference Design
PRD 1153
FEATURES
Full Bridge Switching Power Supply
Voltage Feedback Loop
Quarter Brick Size
Input Voltage Range from 38V to 72VDC
12V/25A DC Output from 48V DC Input
I2C serial interface to PC
Software GUI
DESCRIPTION
This Evaluation Board allows the ADP1043A to be quickly assessed in a switching power supply application.
Using the evaluation board and its accompanying software, the ADP1043A can be interfaced to any PC running
WindowsTM 2000, WindowsTM NT or WindowsTM XP via the computer's USB port.
The evaluation board allows all the input and output functions of the ADP1043A to be exercised without the need
for external components. The software allows control and monitoring of the ADP1043A internal registers. The
board is set up for the ADP1043A to act as an isolated switching power supply, outputting a 12V/25A DC voltage
from a 38 to 72VDC input.
CAUTION
This eval board uses high voltages and currents. Extreme caution should be taken, especially on the primary side,
to ensure safety of the user. It is strongly advised to switch off the eval board when not in use. It is recommended
to use a current limited power supply as the input.
EVALUATION SYSTEM CONTENTS
The evaluation system package contains the following items:
•
•
•
•
Application note
ADP1043A evaluation board
USB Interface cable
Evaluation software on CD
EVALUATION EQUIPMENT
To evaluate this demo board, a PC, oscilloscope, electronic load and a power supply are required.
Rev. Prelim A, Oct 2009
Reference designs are as supplied “as is” and without warranties of any kind, express, implied, or
statutory including, but not limited to, any implied warranty of merchantability or fitness for a
particular purpose. No license is granted by implication or otherwise under any patents or other
intellectual property by application or use of reference designs. Information furnished by Analog
Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may
result from its use. Analog Devices reserves the right to change devices or specifications at any
time without notice. Trademarks and registered trademarks are the property of their respective
owners. Reference designs are not authorized to be used in life support devices or systems.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2009 Analog Devices, Inc. All rights reserved.
Reference Design
PRD 1153
TABLE OF CONTENTS
Features............................................................................................................................................................... 1
Description.......................................................................................................................................................... 1
Caution................................................................................................................................................................ 1
Evaluation System Contents ............................................................................................................................. 1
Evaluation Equipment ...................................................................................................................................... 1
Schematic............................................................................................................................................................ 4
Evaluation Board hardware.................................................................................................................................. 4
Specifications ................................................................................................................................................... 4
Topology And Operation Waveforms ................................................................................................................ 4
Connectors ....................................................................................................................................................... 5
Usb Interface Connector ................................................................................................................................... 6
Getting Started..................................................................................................................................................... 7
Equipment........................................................................................................................................................ 7
Setup................................................................................................................................................................ 8
Board Evaluation ................................................................................................................................................. 9
Line And Load Voltage Regulation ................................................................................................................... 9
Output Voltage Setting.................................................................................................................................... 10
Soft Start ........................................................................................................................................................ 10
Digital Filter – Transient Analysis................................................................................................................... 11
Pwm – Switching Frequency .......................................................................................................................... 14
Light Load Optimization ................................................................................................................................ 15
Primary Side Current Sense and Secondary Side Current Sense ...................................................................... 16
Volt-Second Balance....................................................................................................................................... 16
Flags, and Fault configurations ....................................................................................................................... 16
Appendix........................................................................................................................................................... 20
Bill of Materials................................................................................................................................................. 25
TABLE OF FIGURES
Figure 1.
Figure 2.
Power Module Block Diagram ......................................................................................................... 4
Pin connection diagram (Top view) .................................................................................................. 5
Figure 3.
Eval Board Picture........................................................................................................................... 7
Figure 4.
Figure 5.
Test configuration for the Evaluation Board ..................................................................................... 7
Getting Started................................................................................................................................. 8
Figure 6.
Load Board Setting .......................................................................................................................... 9
Figure 7.
General Settings Window............................................................................................................... 10
Figure 8.
Figure 9.
SoftStart (Yellow VOUT – Green IOUT) ....................................................................................... 11
Transient Response – 75% to 50% load step................................................................................... 12
Rev. Prelim A, Oct 2009 | Page 2 of 27
Reference Design
PRD 1153
Figure 10.
Transient Response – 50% to 75% load step................................................................................... 13
Figure 11.
Digital Filter window..................................................................................................................... 14
Figure 12.
Figure 13.
PWM Timing Window ................................................................................................................... 15
Light Load Mode Control Window................................................................................................. 16
Figure 14.
Flags and Readings ........................................................................................................................ 17
Figure 15.
Flags in Light load mode................................................................................................................ 18
Figure 16.
Figure 17.
Fault Configurations ...................................................................................................................... 19
Primary Side Power Stage Schematic ............................................................................................. 20
Figure 18.
Secondary Side Power Stage Schematic ......................................................................................... 21
Figure 19.
Control Circuit Schematic.............................................................................................................. 22
Figure 20.
ON/OFF & UVP Control Schematic............................................................................................... 22
Figure 21.
Auxiliary Power Schematic............................................................................................................ 23
Figure 22.
PCB Top View ............................................................................................................................... 23
Figure 23.
PCB Bottom View ......................................................................................................................... 24
Rev. Prelim A, Oct 2009 | Page 3 of 27
Reference Design
PRD 1153
SCHEMATIC
Figure 1.
Power Module Block Diagram
Full Bridge FETs
Transformer
Secondary Rec.FETs
VIN(38~72V)
Output Inductor
VOUT([email protected])
ADP3634
ON/OFF
&UVP control
LM5101A
CS2-
SR1/SR2
ADuM3200
CS2+
VS1/VS2
VS3+
OUTA/B/C/D
CT
ADP1043A
CS1
OPTO
VS3AGND
PSON
VDD
RTD
ADD RES
SCL SDA
Transformer
VCC_S
NCP1031
ADP1720
VCC_P
I2C connector
EVALUATION BOARD HARDWARE
SPECIFICATIONS
•
•
•
•
•
•
•
•
Nominal input voltage: 48 DC
Input voltage range: 38-72V DC
Nominal output voltage: 12V DC
Max output voltage: 13.2V DC
Max output current: 25A DC
Switching frequency: 120kHz
Efficiency: 95% at full load
Cooling: 400 LFM (2.0 m/s)Air flow
TOPOLOGY AND OPERATION WAVEFORMS
A typical DC/DC switching power supply is the basis for the eval board. It is a full bridge topology. Figure 1
gives a block diagram of the main components on the board.
The primary side consists of the input terminals, full bridge switches and the main transformer. The gate signal for
the switches comes from the ADP1043A, through the iCoupler and the drivers. This controls the switching of the
Rev. Prelim A, Oct 2009 | Page 4 of 27
Reference Design
PRD 1153
transformer. There is also a current sense transformer, to transmit the primary side current information to the
ADP1043A on the secondary side.
The secondary side power stage consists of the synchronous rectifiers, output LC tank, sensing resistor. This
provides 12V @ 25A at the output. The ADP1043A is also located on the secondary side. The ADP1043A
provides the feedback signal that is used to regulate the voltage, limit the current, and allow current sharing and
shutdown to be implemented. Low side current sensing is used. The ADP1043A also controls the share bus, which
allows multiple power supplies to perform load sharing. The ADP1043A feedback to the primary side, through
the iCoupler, consists of the voltage sense, current sense and share bus information.
There is a 4 pins connector for I2C communication. This allows the PC software to communicate with the eval
board (and with other eval boards through extra 4 pin connectors) through the USB port of the PC. The user can
readily change register settings on the ADP1043A this way, and also monitor the status registers.
The eval board is designed with a 0.5 mOhm RSENSE resistor. The power supply is designed to support a
maximum continuous output of 25 A. The current sense has been calibrated such that 25 A corresponds to 100%
of output current rating.
A variable load is required to perform a thorough evaluation. The output voltage is available between P4 and P9,
and this is also where the load should be connected.
The power supply will be in Continuous Conduction Mode. If the synchronous rectifiers are enabled, the power
supply will remain in CCM mode over the full load range. The output voltage ripple is approx 100mVp-p.
Figure 2.
Pin connection diagram (Top view)
CONNECTORS
The connections to the eval board are shown in Table 1.
Rev. Prelim A, Oct 2009 | Page 5 of 27
Reference Design
Table 1.
PRD 1153
Power Module Pin Assignment
Pin
Designation
Eval Board Function
P1
Vin+
Positive Input
P2
On/Off
Remote Control
P3
Vin-
Negative Input
P4
Vo-
Negative Output
P5-P8
Table 2
Signal Pins
P9
Vo+
Positive Output
USB INTERFACE CONNECTOR
The signal pins are P5~P8 as shown in Table 2. Among them P5B, P6B, P7B and P8B are connected to USB
dongle.
Table 2.
Signal pins
Pin
Designation
Pin
Designation
P5A
PGOOD
P5B
Ground
P6A
Vsen+
P6B
SDA
P7A
Vsen-
P7B
SCL
P8A
ADD/Share
P8B
5V
Figure 3 shows the photo of eval board. Figure 4 provides a typical circuit diagram which details the filtering for
normal operation and output ripple test.
Rev. Prelim A, Oct 2009 | Page 6 of 27
Reference Design
PRD 1153
Figure 3.
Figure 4.
Eval Board Picture
Test configuration for the Evaluation Board
Measurement point for
output ripple & noise
Bandwidth: 20MHz
Vin+
Vout+
C3
L1
C1
C2
Vin-
Vout-
QB300W
Vsen+
On/Off
VsenPGood
Share
Note:
1.C1 100uF×2 parallel
2.C2 560uF×2 parallel
3. C3 MLCC 10uF
4. L1 0.47uH
GETTING STARTED
EQUIPMENT
•
DC Power Supply 0-100V
Rev. Prelim A, Oct 2009 | Page 7 of 27
Reference Design
•
•
•
•
•
PRD 1153
Electronic Load capable of 12V/30A
Oscilloscope
PC with ADP1043A GUI installed
Precision Digital Multimeters (HP34401 or equivalent - 6 digits)
Portable DMM (Fluke) for measuring up to 30A DC current
SETUP
Note:
Do not connect the usb cable to the eval board until after the software has been installed.
1. Install the ADP1043A software. Refer to the Quick Start Guide that comes on the CD (If already installed,
skip to the next step).
2. Connect the evaluation board to the USB port on the computer, using the “USB to I2C interface” dongle. If
the dongle driver was not previously installed, run the software from the Start Menu under “Programs/Analog
Devices/ADP1043A”.
3. The software should report that the ADP1043A has been located on the board. Click “Finish” to proceed to
the Main Software Interface Window.
Figure 5.
Getting Started
4. Click on the
icon: select the “25A QB300W board.43b file”. This file contains all the board information
including values of shunt and voltage dividers.
Rev. Prelim A, Oct 2009 | Page 8 of 27
Reference Design
PRD 1153
Figure 6.
Load Board Setting
5. The ADP1043A is pre-programmed and calibrated, so there is no programming necessary.
6. Connect an electronic load at the output.
7. For the input voltage source, a DC power supply can be used. The input voltage range is 0 to 100 VDC
(48VDC is recommended). This input voltage is the signal which will be regulated to provide a 12V/25A
supply at the output. Set the voltage to 48VDC
8. The eval board should now up and running, and ready to evaluate. The output should be 12 VDC.
BOARD EVALUATION
The ADP1043A is optimized for improving the power supply design and evaluation process. The goal of this eval
kit is to allow the user to get an insight into the flexibility offered by the extensive programming options offered
by the ADP1043A.
The ADP1043A performs many monitoring and housekeeping functions in the power supply. The eval board
allows the user to simulate various events that could affect the ADP1043A in a working system. The user can
monitor how the ADP1043A handles this event in many ways. One way is to use an oscilloscope and/or
multimeter, and probe the eval board, to see various conditions in the system. Many test points have been
provided for this function. The user can also use the software to monitor the conditions of the ADP1043A, and
how it has reacted to the event. The following section gives some experiments that the user might typically
evaluate.
LINE AND LOAD VOLTAGE REGULATION
Vary the input voltage from 38 VDC to 72VDC. The output voltage remains 12V. Vary the load current from 0 to
25A. The output voltage remains 12V.
Rev. Prelim A, Oct 2009 | Page 9 of 27
Reference Design
PRD 1153
OUTPUT VOLTAGE SETTING
The output voltage setting is programmable. Using the Voltage setting window in the software, adjust the output
voltage (using the o/p trim menu). Monitor the actual output voltage of the power supply using the software or a
multimeter, or looking at the output voltage reading on the electronic load. It should match the programmed value.
This will be used to calibrate the power supply in the production environment. By doing this evaluation, the user
can see how the ADP1043A can be trimmed digitally to adjust the output voltage.
SOFT START
Once the input voltage is applied it is possible to test the Soft Start of the ADP1043A. The settings are located in
the General Settings Window. Please refer to the Software Reference Guide for a detailed explanation of all the
controls (EVAL-ADP1043A-GUI-RG).
Figure 7.
General Settings Window
Soft Start is enabled and set to 40ms. You can experiment with different times.
Rev. Prelim A, Oct 2009 | Page 10 of 27
Reference Design
Figure 8.
PRD 1153
SoftStart (Yellow VOUT – Green IOUT)
DIGITAL FILTER – TRANSIENT ANALYSIS
The digital filter can be changed using the software. The effect on transient analysis can be evaluated this way.
Connect a switching electronic load to the output of the eval board. The load should be set to switch between
25%-50% or 50%-75%, changing every 10msecs. Set up an oscilloscope to capture the transient waveform of the
power supply output.
Use a differential probe on the scope, connecting it to the eval board output. Turn on the load, and note the
waveform response.
The scope should be ac-coupled, 200mV/division, with a timebase of 1msecs/division. Also connect a current
probe, set up for 5A/div. Set the trigger at 9A on the current probe signal.
Rev. Prelim A, Oct 2009 | Page 11 of 27
Reference Design
Figure 9.
PRD 1153
Transient Response – 75% to 50% load step
Rev. Prelim A, Oct 2009 | Page 12 of 27
Reference Design
Figure 10.
PRD 1153
Transient Response – 50% to 75% load step
Now, vary the digital filter using the software. Click on “Filter Settings” the window shows the filter settings for
Normal mode. Click on the curve to move position of poles, zeroes and gains.
Rev. Prelim A, Oct 2009 | Page 13 of 27
Reference Design
PRD 1153
Figure 11.
Digital Filter window
The transient response will change. This evaluation shows the user how the digital filter can easily be
programmed to optimize the transient response of the power supply.
PWM – SWITCHING FREQUENCY
The converter switching frequency is programmable. In the “PWM & SR Settings” change the switching
frequency.
The minimum and maximum modulation limits can also be modified.
Rev. Prelim A, Oct 2009 | Page 14 of 27
Reference Design
PRD 1153
Figure 12.
PWM Timing Window
NOTE: It is recommended to evaluate this feature with the power supply turned off. This prevents the chance of
damaging the power supply by introducing shoot-through.
LIGHT LOAD OPTIMIZATION
The ADP1043A can be programmed to optimize performance when a output current drops below a certain level.
The threshold for light load mode can be programmed in the “CS2 Settings” window.
Once the current will drop below this level the sync rectifiers (SR1 and SR2) will be disabled and the other five
PWM can also be disabled by marking the corresponding checkboxes. The “Light Load Mode Settings” in “Filter
Settings” will be used. The response time for the ADP1043A to switch from one mode to another is between 10
and 20ms.
The light load mode can be disabled by selecting a Light Load Current Threshold of 0%.
Rev. Prelim A, Oct 2009 | Page 15 of 27
Reference Design
PRD 1153
Figure 13.
Light Load Mode Control Window
PRIMARY SIDE CURRENT SENSE AND SECONDARY SIDE CURRENT
SENSE
Current sensing is available for both the primary side current and the secondary side current. Primary side current
sensing is performed using the current transformer, T1. Secondary side current sensing uses a low-side sense
resistor (R21, R29, R98 and R99).
Open the Flags and Readings window in the software. Adjust the load current from 0A to 25A. The input current
and output current values will change in the software, matching the changes being made at the load.
VOLT-SECOND BALANCE
The ADP1043A has an integrated Volt-Second Balance circuit. This means that there is no need for a dc blocking
capacitor in the main power path on the primary side. Set the load current to 1A. Place a scope probe on the CS1
pin of the ADP1043A. Setup the scope to 200mV/div, 5usecs/div. A typical CT waveform should be on the scope.
Using the software, toggle Reg 52h, Bit 1. To exaggerate an imbalance, use the PWM window in the software to
intentionally place a timing mismatch. For example, move T3 from 2.5usecs to 2.51usecs.
FLAGS, AND FAULT CONFIGURATIONS
Open the Flags and Readings window in the software. The window will show all of the fault flags. If a flag is set,
then there is a red box next to the flag. If the flag is ok, then there is a green box next to the flag.
Rev. Prelim A, Oct 2009 | Page 16 of 27
Reference Design
PRD 1153
Figure 14.
Flags and Readings
Set the load current to 0.3A. The CS2 OCP flag should be green.
Note that the SR flag and the Light load mode flags are red to indicate that the ADP1043A is in this state.
Rev. Prelim A, Oct 2009 | Page 17 of 27
Reference Design
PRD 1153
Figure 15.
Flags in Light load mode
Now change the load to 28 A. The CS2 OCP flag should now have turned red, because the CS2 OCP threshold has
been reached. The board wills ender in hiccup mode and try and restart.
Set the load back to 2A, and the flag turns green again. This shows how the user can easily monitor the health of
the power supply by monitoring the status of the various flags.
FLAG & FAULT RESPONSE CONFIGURATION:
The ADP1043A is programmed to respond to the various fault conditions in the “Flag Settings” window.
Rev. Prelim A, Oct 2009 | Page 18 of 27
Reference Design
PRD 1153
Figure 16.
Fault Configurations
You can change the resolve issue to “Remain Disabled”. If the overcurrent is applied again the ADP1043A will
shut down and remain off until PSON is cycled.
This evaluation shows how it is quite easy to configure the response to a fault condition. Change the load back to
2A, then toggle the PS_ON switch to restart the power supply.
Rev. Prelim A, Oct 2009 | Page 19 of 27
Reference Design
PRD 1153
APPENDIX
Figure 17.
CS+
Vin+
AGND
1
1
2
1
3
Vin+
Primary Side Power Stage Schematic
T1
Q1
BSC079N10NS
8
6
5
4
7
JP1
PA1005.100NL
R1
4.7
R2
10K
R3
4.7
Q3
BSC079N10NS
R4
10K
T2
Gate1 SW1
C2
C60
1.5uF 1.5uF
C1
C4
1.5uF 1.5uF
C5
1.5uF
7
TR7
6
5
TR6
TR5
4
TR4
3
TR3
Gate3
1
C6
1.5uF
SW2
2
RM8
Q2
BSC079N10NS
R5
4.7
R6
10K
R7
4.7
Q4
BSC079N10NS
R8
10K
Vin+
VinCS+
Vin-
1
1
Vin-
Gate2
Gate4
AGND
JP3
12V_PRI
C7
0.1uF
VDD
HB
HO
HS
NC1
LO
VSS
LI
HI
NC2
11
SW1
1
2
3
4
5
PAD
Gate1
OUTA
U1 Gate2
10
9
8
7
6
5V_PRI
R9
R10
8
7
6
5
0
LM5101A
C8
0.1uF
C10
1uF
3.6V_SEC
U2
0
VDD2 VDD1
VOA
VIA
VOB
VIB
GND2GND1
OUTB
OUTC
1
2
3
4
OUTA
OUTB
OUTD
12V_PRI
C9
0.1uF
ADUM3200
3.6V_SEC
5V_PRI
0
TR7
TR6
SW2
C11
0.1uF
Gate4
VDD
HB
HO
HS
NC1
LO
VSS
LI
HI
NC2
11
Gate3
1
2
3
4
5
U4
PAD
12V_PRI
C14
1uF
TR5
10
9
8
7
6
5V_PRI
R11
R12
8
7
6
5
0
LM5101A
C12
0.1uF
3.6V_SEC
U3
0
VDD2 VDD1
VOA
VIA
VOB
VIB
GND2GND1
TR3
1
2
3
4
OUTC
OUTD
C13
0.1uF
ADUM3200
0
Rev. Prelim A, Oct 2009 | Page 20 of 27
TR4
Vin+
VinCS+
AGND
OUTA
OUTB
OUTC
OUTD
12V_PRI
3.6V_SEC
5V_PRI
TR7
TR6
TR5
TR4
TR3
Reference Design
PRD 1153
Figure 18.
Secondary Side Power Stage Schematic
L3
2.3uH
Vout+
TR4
1
Vout+
1
JP8
TR6
TR7
M1
BSC047N08NS3
TR5
R13
1K
M2
BSC047N08NS3
1
D1
C15
1N4148WS
D2
1nF
2
M3
MURA110
R58
2
C16
C17
3.3uF/16V
3.3uF/16V
C18
68uF
CMAX
Si3430
R59
R14
2
10K
M5
BSC047N08NS3
TR3
M6
BSC047N08NS3
C22
33nF
R60
2
R61
2
R19
10K
R17
10K
R62
10K
R63
10K
C19
C20
3.3uF/16V
3.3uF/16V
R18
10K
D5
1
C21
68uF
CMAX
C23
R29
2m
R21
2m
PGND
2
Vout-
33nF
MURA110
R22
10
PSON
#OTW
ADP3634
EN
INA
GND
INB
PAD
12V_SEC
U5
OTW
OUTA
VS
OUTB
1
2
3
4
SR1
R87
0
SR2
9
8
7
6
5
C24
1uF
Rev. Prelim A, Oct 2009 | Page 21 of 27
1
JP4
1
Vout-
Reference Design
PRD 1153
Figure 19.
Control Circuit Schematic
Vout+
Vout+
D6
BAV70WT1
R25
TR4
R24
11K
R26
11K
CS+
R30
R44
10
10
R23
10
PGND Vout-
680
C25
R31
Vsen+
R28
VS1
R27
4.7K
C58
R32
100pF
4.99K 4.99K
AGND
R35
11K
1nF
1K
R33
1K
0
VS3+
SR2
R71
R73
10K
10K
C59
CS2+
CS2-
SR1
R37
1K
Vsen-
16
1
R38
GATE
VS2
3
VS1
8
PGND
CS2-
CS2+
5
4
10
SR2
9
ACSNS
U6
SR1
6
1nF
VS3+
VS3-
7
CS1
VCORE
Vout-
32
VS3-
31
10
26
3V3_SEC
OUTA
OUTB
OUTC
OUTD
11
12
13
14
15
VDD
0.1uF
OUTA
C26
OUTB
DGND
ADP1043
OUTC
AGND
OUTD
TPAD
C27
25
0.1uF
0.1uF
2
33
0
OUTAUX
R93
PGOOD1
R64
PSON
R40
2.2K
10K
3V3_SEC
2.2K
SDA
24
JP10
R67
Vout-
100
1
3
5
7
SDA
C28
R41
R42
49.9K 0.1%
10K
0
PGOOD
Share
23
R39
2.2K
18
17
SCL
RES
30
ADD 29
3V3_SEC
ADD
RTD
SHAREi
28
22
21
20
19
PSON
FLAGIN
PGOOD2
SHAREo
C63
27
C29
33pF
33pF
R43
2.2K
0
SCL
5V
0
R70
D4 Connector
1N4148WS
100
C30
33pF
0
C31
33pF
0
PGOOD
Vsen+
Vsen-
2
4
6
8
R45
0
2
2
0
0
0
Figure 20.
ON/OFF & UVP Control Schematic
5V_PRI
R47
1K
R50
Vin+
100K
R51
8.2K
10K
5.1K
D10
ZR431F01
Q5
MMBT2907AW1
R52
R53
C32
1uF
R57
ON/OFF
1
3.6V_SEC
Ven
5.1K
1K
C33
10nF
4
R46
220K R49
R54
5.1K
220
U7
PS2911
PSON
3
R48
1
Ven
2
JP9
SHORTPIN
R55
220
C34
1
D11
R56
5.1K
10nF
JP2
C35
10nF
BAV70WT1
0
ON/OFF & UVP Control
Rev. Prelim A, Oct 2009 | Page 22 of 27
0
ADD
R34
NC
Share
12V_SEC
RT1
100KOhm
PGND1
R36
Reference Design
PRD 1153
Figure 21.
Auxiliary Power Schematic
T3
Vin+
1
D15
BAV70WT1
12V_SEC
6
C41
R76
20K
R77
20K 470pF/250V
2
3
MMBD1504A
5
R88
1K
3.6V_SEC
D16
R78
1M
C43
3
4
D17
ER11
BAV70WT1
10uF/16V
9 PAD
C49
R80
680
C47
0.1uF
C48
R83
10K
MMBZ5227BL/3.6V
0
R81
680
5V_PRI
C50
1nF
R84
55K
R79
20K
D8
1N4148WS
12V_VCC
R82
5.1K
10uF/16V
10uF/16V
3
U10
C45
390pF
C51
0.1uF
C52
12V_SEC
D18
C53
2
0.1uF
VD GND
VCC CT
UV VFB
OV COM
1
2
3
4
1
C46
8
7
6
5
2
D19
NCP1031
12V_VCC
1
12V_PRI
U11
3V3_SEC
1000pF/2000V
1
2
3
EN_LDO4
MMBZ5231BLT/5.1V
220pF
R86
36K
R85
C54
1uF
AUX Power
10K
PCB Top View
Rev. Prelim A, Oct 2009 | Page 23 of 27
GND4
GND3
GND2
GND1
8
7
6
5
ADP1720ARMZ-3.3-R7
C55
1uF C56
0.1uF
3.3V LDO
Figure 22.
GND
IN
OUT
EN
0
Reference Design
PRD 1153
Figure 23.
PCB Bottom View
Rev. Prelim A, Oct 2009 | Page 24 of 27
Reference Design
PRD 1153
BILL OF MATERIALS
Table 3.
Bill of Materials
Item
Reference
Part Number
Description
Package
Qty
Mfg
1
C1,C2,C4,C5,C6,C60
C3225X7R2A155K
CAP 1.5uF/100V X7R
1210
6
TDK
2
C1005X7R1C104K
CAP 0.1uF/16V X7R
0402
13
TDK
3
C7,C8,C9,C11,C12,C13,C26,
C27,C46,C47,C51,C56,C63
C10,C14,C24,C32,C54,C55
C1608X7R1C105K
CAP 1uF/16V X7R
0603
6
TDK
4
C15,C50,C58,C59
C1005X7R1H102K
CAP 1nF/50V X7R
0402
4
TDK
5
C16,C17,C19,C20
C3216X7R1C335K
CAP 3.3uF/16V X7R
1206
4
TDK
6
C18,C21
16TQC68M
CAP 68uF/16V
D3L
2
Sanyo
7
C22
C1608X7R2A223K
CAP 22nF/100V X7R
0603
1
TDK
8
C23
C1608X7R2A223K
CAP 33nF/100V X7R
0603
1
TDK
9
C25
C1005COG1H101J
CAP 100pF/50V C0G
0402
1
TDK
10
C28,C29,C30,C31
C1005COG1H330J
CAP 33pF/50V COG
0402
4
TDK
11
C33,C34,C35
C1005X7R1E103K
CAP 10nF/25V X7R
0402
3
TDK
12
C41
C1608C0G2E471J
CAP 470pF/250V COG
0603
1
TDK
13
C43,C48,C49
C3216X7R1C106K
CAP 10uF/16V X7R
1206
3
TDK
14
C45
C1005COG1H391J
CAP 390pF/50V COG
0402
1
TDK
15
C52
C4520X7R3D102K
CAP 1000pF/2000V X7R
1808
1
TDK
16
C53
C1005X7R1H221K
CAP 220pF/50V X7R
0402
1
TDK
17
D1,D4,D8
1N4148WS
Diode 150mA 75V
SOD323
3
Diodes
18
D2,D5
MURA110
Diode 1A 100V
SMA
2
Vishay
19
D6,D11,D15,D17
BAV70WT1
Diode 200mA 70V
SOT323
4
ON Semi
20
D10
ZR431F01
SOT23
1
ZETEX
21
D16
MMBD1504A
Adjustable precision shunt
regulator
Diode 200mA 200V
SOT23
1
ON Semi
22
D18
MMBZ5231BLT
Zener 5.1V
SOT23
1
ON Semi
23
D19
MMBZ5227BL
Zener 3.6V
SOT23
1
ON Semi
24
JP1
PIN
HDR1X1
1
25
JP2
PIN
HDR1X1
1
26
JP3
PIN
HDR1X1
1
27
JP4
PIN
HDR2x1
1
28
JP8
PIN
HDR2x1
1
29
JP9
PIN
shortpin
1
30
JP10
31
L3
Planar Transfomer
RM8_PC95
RM8
1
Vishay
32
M1,M2,M5,M6
BSC047N08NS3
MOSFET
SuperSO8
4
Infineon
33
M3
Si3430DV
MOSFET
TSOP-6-3
1
Vishay
34
Q1,Q2,Q3,Q4
BSC079N10NS
MOSFET
SuperSO8
4
Infineon
35
Q5
MMBT2907AWT1
PNP -800mA -40V
SOT23
1
ON Semi
36
RT1
THERMISTOR 1%
0603
1
Vishay
1
37
R1,R3,R5,R7
RES 4.7OHM 5% 1/10W
0603
4
Vishay
38
R2,R4,R6,R8,R14,R18,R49,
R83,R85
R9,R10,R11,R12,R36,R87
RES 10KOHM 5% 1/16W
0402
9
Vishay
RES 0OHM 5% 1/16W
0402
6
Vishay
39
Rev. Prelim A, Oct 2009 | Page 25 of 27
Reference Design
PRD 1153
Item
Reference
Description
Package
Qty
Mfg
40
R13,R47,R52
Part Number
RES 1KOHM 5% 1/16W
0402
3
Vishay
41
R17
RES 10 KOHM 5% 1/4W
1206
1
Vishay
42
R21,R29,R98,R99
RES 2m OHM 1% 1/2W
1206
4
Vishay
43
R22,R23,R38
RES 10OHM 5% 1/16W
0402
3
Vishay
44
R24
RES 11KOHM 1% 1/16W
0402
1
Vishay
45
R25
RES 680OHM 5% 1/16W
0402
1
Vishay
46
R26,R35
RES 11KOHM 1% 1/16W
0402
2
Vishay
47
R27
RES4.7KOHM 5% 1/16W
0402
1
Vishay
48
R28,R31
RES 4.99KOHM 1% 1/16W
0402
2
Vishay
49
R30,R44
RES 10OHM 5% 1/10W
0603
2
Vishay
50
R32
RES 1KOHM 1% 1/16W
0402
1
Vishay
51
R33,R37
RES 1KOHM 1% 1/16W
0402
2
Vishay
52
R34
RES 10OHM 5% 1/16W
0402
1
Vishay
53
R39,R40,R43,R93
RES 2.2KOHM 1% 1/16W
0402
4
Vishay
54
R41,R64,R71,R73
RES 10KOHM 1% 1/16W
0402
4
Vishay
55
R42
RES 49.9KOHM 0.1% 1/16W
0402
1
Vishay
56
R45
RES 2OHM 1% 1/16W
0402
1
Vishay
57
R46
RES 220KOHM 1% 1/16W
0402
1
Vishay
58
R48
RES 100KOHM 5% 1/10W
0603
1
Vishay
59
R50,R53,R54,R56,R82
RES 5.1KOHM 5% 1/16W
0402
5
Vishay
60
R51
RES 8.2KOHM 1% 1/16W
0402
1
Vishay
61
R55,R57
RES 220OHM 5% 1/16W
0402
2
Vishay
62
R58,R59,R60,R61
RES 0OHM 5% 1/10W
0603
4
Vishay
63
R67,R70
RES 100OHM 5% 1/16W
0402
2
Vishay
64
R76,R77
RES 20KOHM 5% 1/10W
0603
2
Vishay
65
R78
RES 1MOHM 5% 1/10W
0603
1
Vishay
66
R79
RES 14KOHM 5% 1/16W
0402
1
Vishay
67
R80
RES 680OHM 5% 1/8W
0805
1
Vishay
68
R84
RES 55KOHM 5% 1/16W
0402
1
Vishay
69
R86
RES 36KOHM 5% 1/16W
0402
1
Vishay
70
R88
RES 1KOHM 5% 1/8W
0805
1
Vishay
71
T1
PA1005.100NL
20A 1:100
P820x
1
PULSE
72
T2
RM8
RM8_PC95
RM8
1
TDK
73
T3
ER11
Transformer ER11
ER11
1
TDK
74
U1,U4
LM5101A
Gate Driver
LLP-10
2
NS
75
U2,U3
ADuM3200
iCoupler
SO8
2
ADI
76
U5
ADP3634
Dual channel driver IC
1
ADI
77
U6
ADP1043A
Secondary PWM Controller
8ld
MSOP_ED
LFCSP32
1
ADI
78
U7
PS2911-1
Optocoupler PS2911
4ld MSOP
1
Vishay
79
U10
NCP1031
TOP Switch
DFN8
1
ON Semi
80
U11
ADP1720ARMZ-3.3R7
LDO
8ld MSOP
1
ADI
81
R81
RES 820OHM 5% 1/8W
0805
1
Vishay
Rev. Prelim A, Oct 2009 | Page 26 of 27
Reference Design
PRD 1153
NOTES
©2009 Analog Devices, Inc. All rights reserved.
Trademarks and registered trademarks are the
property of their respective owners. Error! Unknown document property name.
Rev. Prelim A, Oct 2009 | Page 27 of 27
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