XRP7725EVB-DEMO-2 [EXAR]
EVAL BOARD XRP7725;型号: | XRP7725EVB-DEMO-2 |
厂家: | EXAR CORPORATION |
描述: | EVAL BOARD XRP7725 |
文件: | 总19页 (文件大小:1947K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
Rev. 1.0.0
May 2014
GENERAL DESCRIPTION
The XRP7724/7725EVB-DEMO-2 board is a
complete four channel power system. It is
configured to provide 3.3V, 2.5V 1.5V and 1V
at a maximum of 3A, 3A, 5A and 10A loads
respectively. The 1.5V and 1V supplies can be
adjusted in 2.5mV increments, the 2.5V
supply in 5mV increments, and the 3.3V
supply is adjustable in 10mV increments. The
order and ramp rates for each supply can be
programmed to accommodate any sequencing
requirement. All power supply operations can
be controlled over an I2C interface. Faults,
output voltages and currents can also be
monitored. Two GPIO and three PSIO signals
are available and can be programmed to
EVALUATION BOARD MANUAL
XRP7724/7725EVB-DEMO-2
provide
a
variety of functions. Unused
FEATURES
GPIO/PSIO pins can be programmed as I/O
expansion for a microcontroller. The board is
supported by PowerArchitectTM 5.1 or later and
plugs directly onto the interposer board acting
as an interface to an Arduino controller or
Exar’s XCM.
• XRP24/7725 Programmable Controller
• 4 Channel Power System
• Wide Input Voltage Range: 5.5V-25V
• I2C Interface
− Programming
− Remote re-configurability
− Monitoring
− Control
• Arduino GPIO, PSIO and ENABLE
control
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
Rev. 1.0.0
May 2014
EVALUATION BOARD SCHEMATICS
Figure 1 XRP7724/7725 Evaluation Board Schematics
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
PIN ASSIGNMENT
LDO3_3
AGND
CPLL
1
2
33
32
31
30
29
28
27
26
25
24
23
GL_RTN2
GL2
3
LX2
AVDD
VOUT1
VOUT2
VOUT3
VOUT4
GPIO0
GPIO1
SDA
4
GH2
5
BST2
GL_RTN3
GL3
XRP7724/XRP7725
TQFN
6
7mm X 7mm
7
8
LX3
9
GH3
Exposed Pad: AGND
10
11
BST3
VCCD3-4
Figure 2 XRP7724/7725 Pin Assignment
PIN DESCRIPTION
Name
Pin Number
Description
Input voltage. Place a decoupling capacitor close to the pin. This input is used in UVLO
fault generation.
41
16
VCC
1.8V supply for digital circuitry. Connect pin to AVDD. Place a decoupling capacitor
close to the pin.
DVDD
Gate Drive supply. Two independent gate drive supply pins where pin 34 supplies
drivers 1 and 2 and pin 23 supplies drivers 3 & 5. One of the two pins must be
connected to the LDO5 pin to enable two power rails initially. It is recommended that
the other VCCD pin be connected to the output of a 5V switching rail(for improved
efficiency or for driving larger external FETs), if available, otherwise this pin may also
be connected to the LDO5 pin. A bypass capacitor (>1uF) to PAD is recommended for
each VCCD pin with the pin(s) connected to LDO5 with shortest possible etch.
VCCD1-2
VCCD3-4
23,34
2
Analog ground pin. This is the small signal ground connection.
AGND
Ground connection for the low side gate driver. This should be routed as a signal trace
with GL. Connect to the source of the low side MOSFET.
39,33, 28,22
GL_RTN1-4
Output pin of the low side gate driver. Connect directly to the gate of an external N-
channel MOSFET.
38,32, 27,21
GL1-GL4
© 2014 Exar Corporation
3/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
Name
Pin Number
Description
Output pin of the high side gate driver. Connect directly to the gate of an external N-
channel MOSFET.
36,30, 25,19
GH1-GH4
Lower supply rail for the GH high-side gate driver. Connect this pin to the switching
node at the junction between the two external power MOSFETs and the inductor. These
pins are also used to measure voltage drop across bottom MOSFETs in order to provide
output current information to the control engine.
37,31, 26,20
LX1-LX4
High side driver supply pin(s). Connect BST to the external capacitor as shown in the
Typical Application Circuit on page 5. The high side driver is connected between the
BST pin and LX pin and delivers the BST pin voltage to the high side FET gate each
cycle.
35,29, 24,18
9,10
BST1-BST4
GPI0-GPIO1
PSIO0-PSIO2
These pins can be configured as inputs or outputs to implement custom flags, power
good signals, enable/disable controls and synchronization to an external clock.
Open drain, these pins can be used to control external power MOSFETs to switch loads
on and off, shedding the load for fine grained power management. They can also be
configures as standard logic outputs or inputs just as any of the GPIOs can be
configured, but as open drains require an external pull-up when configured as outputs.
13,14,15
SMBus/I2C serial interface communication pins. These pins can be configured open
drain or pseudo-TTL requiring a pull-up resistor.
11,12
SDA, SCL
Connect to the output of the corresponding power stage. The output is sampled at least
once every switching cycle
5,6,7,8
VOUT1-VOUT4
Output of a 5V LDO. This is a micro power LDO that can remain active while the rest of
the IC is in the stand-by mode. This LDO is also used to power the internal Analog
Blocks.
44
1
LDO5
Output of the 3.3V standby LDO. This is a micro power LDO that can remain active
while the rest of the IC is in shutdown.
LDO3_3
If ENABLE is pulled high or allowed to float high, the chip is powered up (logic is reset,
registers configuration loaded, etc.). The pin must be held low for the XRP7724 to be
placed into shutdown. Active channels will automatically be ramped down, if desired,
prior to the disabling of the chip.
40
42
ENABLE
BFB
Input from the 15V output created by the external boost supply. When this pin goes
below a pre-defined threshold, a pulse is created on the low side drive to charge this
output back to the original level. If not used, this pin should be connected to GND.
Digital ground pin. This is the logic ground connection, and should be connected to the
ground plane close to the PAD.
17
3
DGND
CPLL
PLL compensation capacitor
ORDERING INFORMATION
Description
XRP7724EVB-DEMO-2 Evaluation Board
Part Number
XRP7724EVB-DEMO-2
Evaluation kit includes XRP7724EVB-DEMO-2 Evaluation Board with Power
Architect software and interface board
XRP7724EVB-DEMO-2-KIT
Evaluation kit includes XRP7724EVB-DEMO-2 Evaluation Board with Power
Architect software, interface and Arduino controller boards
XRP7725EVB-DEMO-2 Evaluation Board
XRP7724EVB-DEMO-2-KITA
XRP7725EVB-DEMO-2
Evaluation kit includes XRP7725EVB-DEMO-2 Evaluation Board with Power
Architect software and interface board
XRP7725EVB-DEMO-2-KIT
Evaluation kit includes XRP7725EVB-DEMO-2 Evaluation Board with Power
Architect software, interface and Arduino controller boards
Interface board designed for use with an Arduino controller and compatible
evaluation boards. Also has connectivity for the Exar Configuration Module (XCM)
XRP7725EVB-DEMO-2-KITA
XR77EVB-INT-1
Exar Configuration Module (XCM). USB to I2C interface board.
XRP77XXEVB-XCM
© 2014 Exar Corporation
4/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
USING THE EVALUATION BOARD
Load the latest PowerArchitectTM 5 software
and run it.
INPUT VOLTAGE RANGE
The input voltage range of these boards is
from 5.5V to 25V. The power components
have been optimized for a 12V input rail.
When running the board at an input voltage
other than 12V, use PowerArchitectTM 5.1 to
evaluate the system performance.
After selecting the proper family (Chips) and
the device (XRP7724 or XRP7725), select the
“Get Started with the EVB-DEMO2” option
when prompted as shown below.
I2C INTERFACE
The XRP7724 and XRP7725 programmable
power controllers employ a standard I2C
interface. Although the I2C signals can be
pulled up to LDO5 on board by means of
installing resistors at the locations R25 and
R26, the I2C bus signals are pulled up on the
controller interface board (XR77EVB-INT-1) by
default (refer to Appendix – jumpers installed
shorting pins 2 and 3 together at the locations
JP6 and JP7).
OPERATING THE EVALUATION BOARD
When done, click “Create”. PowerArchitectTM
will load the default configuration
automatically.
5
The XRP7724/7725EVB-DEMO-2 is designed to
be powered from either an AC/DC wall wart
(the output voltage must be in the range of
the controllers - 5.5V to 25V) connected to the
barrel connector or a test bench DC power
supply (the voltage must be in the range of
the controllers - 5.5V to 25V) connected to the
VIN connectors.
Apply Power to the board. Please refer to the
sections above on how to properly supply
power to the board and what voltage range to
use.
Turn on the Power supply.
Use USB cable to connect the computer (type
A) and the Arduino controller board (type B).
BRING UP PROCEDURE
Plug
the
XRP7724/7725EVB-DEMO-2
Go to the Tools tab in PA 5 and select Boards.
The software will identify communication ports
where it found the Arduino controller board.
Select the port.
evaluation board and the Arduino board into
the controller interface board as shown below.
© 2014 Exar Corporation
5/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
PA 5 is now communicating with the Arduino
controller board which is indicated in the lower
left corner.
PA 5 will go through the process of loading
configuration in the flash. Once it has
successfully completed the task, it will report
the outcome as seen above and reset the
device if “Automatically Reset After Flashing”
box checked (default option).
Programming the Configuration onto
XRP7724/7725
Close the window.
To program a configuration go to the Tools tab
in PA 5 and select Program Flash.
Note that XRP7724/7725EVB-DEMO-2 boards
will
be
pre-loaded
with
the
default
configuration.
Regulation
To enable channel regulation go to the Tools
tab in PA 5 and select Dashboard.
The program Flash window will appear.
In Dashboard turn Group 1 and Group 2 on.
The configuration groups the channels 1 and 2
into the group 1, and the channels 3 and 4
into the group 2. The channels are now in
regulation as indicated by VOUT readings as
well as the in-regulation indicators.
Click the Flash button.
© 2014 Exar Corporation
6/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
desired. To do this, one will need to populate
the locations R27, R28, R30.
EVALUATION BOARD CONNECTIONS
The following picture illustrates how VIN
supplied from a test bench DC power supply
and instruments attached to the outputs would
be connected to the XRP7724/7725EVB-
DEMO-2 board.
Channels can be turned on individually if
desired.
INTERFACE BOARD CONNECTIONS
The following picture illustrates connections on
the interface board - XR77EVB-INT-1. Its
primary task is to provide interface between
the Arduino controller board and EVB. In
addition, as explained in the subsequent
sections, it can be used to make connection
between XCM and EVB using 10-wire ribbon
cable.
GPIO and PISO interface
The GPIOs, PSIOs and ENABLE can be
controlled
from
the
Arduino
controller
dynamically in the dashboard.
ENABLE signal is connected to the Arduino
controller board by default (JP2 header is
shorted). Arduino drives the ENABLE pin low
to place XRP7724/7725 into the shutdown
mode. It releases the ENABLE pin to enable
the device. If leaving the ENABLE pin floating
is desired, the jumper at JP2 shall be
removed.
The
PSIOs
are
not
pulled
up
on
XRP7724/7725EVB-DEMO-2 by default. There
is a loading option to pull PSIOs up to LDO5 if
© 2014 Exar Corporation
7/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
Wiring XCM directly to the Evaluation
Board
USING EXAR CONFIGURATION MODULE
(XCM) TO COMMUNICATE WITH THE
EVALUATION BOARD
Use 3-wire connection between JP4 pins 1-3
on the XCM (pin 1 – SCL; pin 2 – GND; pin 3 –
SDA) to the P3 connector on the evaluation
board, the pin 8 (GND), the pin 9 (SDA) and
the pin 10 (SCL) on the interface board. Make
a use of the silkscreen labels on both boards.
It is possible to use the XCM (firmware version
v62)
to
communicate
with
the
5
XRP7724/7725EVB-DEMO-2
board.
PA
supports XCM. The main task will be
connecting XCM to the evaluation board.
Using Interface Board
If the interface board is available use following
steps:
•
Make sure no Arduino controller board
is connected to the interface board
•
Remove
I2C pull-up jumpers at
location JP6 and JP7 (need to be open
in all positions)
•
If the 10-wire ribbon cable is available
connect the XCM to the interface board
as shown below
•
•
Use I2C pull-up resistors on XCM
(install headers at the locations JP2 and
JP3 shorting pins 2 and 3)
If 10-wire ribbon cable is not available
use 3-wire connection between JP4 pins
1-3 on XCM (pin 1 – SCL; pin 2 – GND;
pin 3 – SDA) to test points T23 (SCL),
T24 (GND) and T25 (SDA) on the
interface board. Make a use of the
silkscreen labels on both boards.
•
Connect the interface board and the
evaluation board as shown above.
© 2014 Exar Corporation
8/19
Rev. 1.0.0
1
2
3
4
5
6
T5
VCC
R16
VIN
R5
DNS
VIN
LDO5
0603
P2
1
3
2
0 0805
EVALUATION BOARD SCHEMATICS
C4
35V
120uF
D1
DNS
C38
DNS
T6
50V
0603
GND
BST1
C11
LX1
GC1
0.1UF
VIN_CH1
VIN
1206
R19 DNS
AVDD
GH1
A
B
C
D
A
B
C
D
0603
C56
DNS
T22
C18
16V
4.7UF
C19
50V
0.01UF
C24
25V
0.01UF
FDMC8200
Q1
L1
OUT1
GND
C2
CH1_OUT
744314490
4.9uH
JP1
C8
35V
10UF
R2
R3
DNS
Pad - Not Part
GND
GND
GND
+
+
C3
10V
47uF
T2
VOUT1
C60
DNS
10V
47uF
C1
50V
1UF
T18
R20 DNS
R17
DNS
GL1
T23
T4
0603
C5
DNS
T7
R1
DNS
CH1_OUT
5VEXT
VCC
0603
GND1
GND
C43
50V
0.01UF
C62
DNS
C39
35V
10uF
C10
50V
2200pF
C14
50V
0.01UF
GND
50V
PCB Constraint: CH1 power ground meets EVB signal ground through vias at Cout
0603
BST2
C20
LX2
0.1UF
U1
35
GC2
GND
GND
VIN_CH2
VIN
GND
1206
BST1
GH1
R6
BST1
GH1
LX1
R22 DNS
C55
DNS
T24
LDO5
VIN
VCCD
36
37
38
39
5
GH2
T9
R7
DNS
0603
0603
LX1
2.2 OHM
0603
GL1
GL1
GL_RTN1
VOUT1
C12
16V
C15
50V
0.01UF
CPLL
3
CPLL
BFB
0603
R43
R42
VOUT1
C45
FDMC8200
Q2
L2
OUT2
4.7UF
DNS
DNS
42
0.1UF
50V
GND
CH2_OUT
C16
DNS
C57
35V
LDO5
LDO3V3
44
1
744314330
3.3uH
R4
10UF
LDO5
LDO3_3
0805
R8
DNS
Pad - Not Part
GND
GND
34
VCCD
C49
GND
VCCD1-2
T3
T19
16V
4.7UF
5VEXT
AVDD
43
+
C7
10V
47uF
+
C9
10V
47uF
VOUT2
5VEXT
R21 DNS
C61
DNS
GND
GL2
C6
50V
1UF
0603
DS1
DNS
C13
DNS T8
4
16
29
30
31
32
33
6
BST2
GH2
T25
R18
DNS
AVDD
DVDD
BST2
GH2
LX2
GND
GND
R9 DNS
LX2
0603
GL2
GND
GL2
GL_RTN2
VOUT2
GND2
0603
0805
GND
GPIO0 R35
GPIO1
0
9
10
VOUT2
GPIO0
GPIO1
GC3
0805
R36
0
C48
0.1UF
50V
VIN_CH3
Q4
VIN
GND PCB Constraint: CH2 power ground meets EVB signal ground through vias at Cout
T1
T11
T30
1206/1210
LDO3V3
SDA
SCL
11
12
FDMC8882
SDA
SCL
D
C54
DNS
24
25
26
27
28
7
BST3
GH3
GND
LX3
R24DNS
G
BST3
GH3
LX3
GH3
C23
GL3
4
C44
0603
0805
C17
50V
0.01UF
PSIO0
PSIO1
PSIO2
R37
0
13
14
15
R10
DNS
0603
S
PSIO0
PSIO1
PSIO2
0805
16V
2.2UF
R38
0
GL3
T26
GL3
GL_RTN3
VOUT3
0805
GND GND GND
R39
0
50V
0603
VOUT3
GND
BST3
L3
OUT3
LX3
CH3_OUT
0.1UF
0603
C47
GND
GND
GND
744314200
2.0uH
R12
ENABLE
40
0.1UF
50V
R13
Pad - Not Part
ENABLE
0805
VCCD
23
VCCD
C42
VCCD3-4
D
S
R23DNS
+
C26
6.3V
330uF
+
C27
T12
VOUT3
G
C21
35V
4
DNS
C59
DNS
16V
4.7UF
C52
10V
47uF
C28
50V
1UF
T20
0603
C41
50V
0.01UF
C46
50V
0.01UF
C22
50V
0.01UF
C40
50V
0.01UF
DNS
R29
DNS
18
19
20
21
22
8
BST4
GH4
BST4
GH4
LX4
GND
LX4
10UF
Q3
C29
DNS
T10
DNS
FDMC7660
R11
0603
GL4
GL4
GL_RTN4
VOUT4
GND3
GND
GND
GND
GND
GND
VOUT4
GND
0603
C50
0.1UF
50V
T27
GC4
VIN_CH4
VIN
PCB Constraint: CH3 power ground meets EVB signal ground through vias at Cout
1206/1210
C51
DNS
GND
Q5
D SIR474DP
R33DNS
G
GH4
4
GND
0603
GND
T28
S
50V
0603
BST4 C25
L4
OUT4
0.1UF
LX4
CH4_OUT
T17
T21
7443551130
1.3uH
R15
Pad - Not Part
T15
R14
DNS
D
S
R32DNS
+
C34
DNS
+
C33
6.3V
330uF
+
C53
6.3V
330uF
G
GL4
4
C58
VOUT4
C35
DNS
C32
10V
47uF
C36
50V
1UF
0603
C31
C30
DNS
R34
DNS
35V
10UF
35V
10UF
FDMS7560S
Q6
C37
DNS
T13
GND4
GND
T14
GND
T29
VIN
PCB Constraint: CH4 power ground meets EVB signal ground through vias at Cout
LDO5
LDO5
P3
P1
LDO5
LDO3V3
SCL
SDA
1
2
3
4
5
6
7
8
2
1
3
5
7
9
GPIO0
GPIO1
R31 DNS
4
6
8
R26
R25
LDO5
R27
R28
R30
R40
R41
DNS
0603
AVDD
R44
DNS
DNS
0805
DNS
DNS
DNS
DNS
2
1
10
GPIO0
GPIO1
LDO5
LDO3V3
PSIO1
12 11
14 13
16 15
18 17
20 19
DNS
SDA
SCL
JP2
ENABLE
PSIO2
PSIO0
PSIO0
PSIO1
PSIO2
GPIO0
GPIO1
SDA
SCL
PSIO0
PSIO1
PSIO2
9
T16
10
11
12
13
14
15
GND
GND
Header 2X10
GND
ENABLE
GND
Header 15
E X A R
4 8 7 2 0 K a t o R o a d
Title XRP772xEVB-DEMO-2
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Size:
Rev:
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Name:XRP7724.SchDoc
1.0
x
a
.
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9/19
Date: 5/13/2014
Time: 1:03:21 PM Sheet 1 of 1
File: C:\SVN_LOCAL\XRP7724EVB-DEMO-1\Board\XRP7724.SchDoc
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XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
BILL OF MATERIAL
Ref.
Qty Manufacturer
Part Number
Size
Component
1
1
Exar Corporation
Exar Corporation
146-6708-01
4.05x2.70in
PCB
2nd Generation 4Ch.
Sw. Controller
U1
XRP7724/XRP7725
FDMC8200
TQFN44
Power 33
Dual N-Channel Power
Trench MOSFET
Q1,Q2
2
1
1
1
1
1
1
1
1
4
6
1
5
1
8
4
9
Fairchild
Fairchild
N-Channel Power
Trench MOSFET
Q3
FDMC7660
Power 33
N-Channel Power
Trench MOSFET
Q4
Fairchild
FDMC8882
MLP 3.3X3.3
PowerPAK
SO-8
N-Ch. 30-V (D-S)
MOSFET
Q5
Vishay Siliconix
Fairchild
SIR474DP
N-Channel Power
Trench SyncFET
Q6
FDMS7560S
Power 56
7.0x6.9mm
7.0x6.9mm
7.0x6.9mm
13.2X12.8mm
0805
Inductor 4.9uH,
14.5mΩ, 6.5A
L1
Wurth Elektronik
Wurth Elektronik
Wurth Elektronik
Wurth Elektronik
744314490
Inductor 3.3uH,
9.0mΩ, 9.0A
L2
744314330
Inductor 2.0uH,
5.85mΩ, 11.5A
L3
744314200
Inductor 1.3uH,
1.8mΩ, 25A
L4
C1, C6, C28, C36
C2, C3, C7, C9, C32, C52
C4
7443551130
Murata
Corporation
Ceramic Capacitor 1µF,
50V, X7R
GRM21BR71H105KA12L
GRM32ER71A476KE15L
35SVPF120M
Murata
Corporation
Ceramic Capacitor
47µF, 10V, X7R
1210
OSCON Capacitor
120µF, 35V
Panasonic/Sanyo
F12
Murata
Corporation
Ceramic Capacitor
10µF, 50V, X7R
C8, C16, C21, C30, C31
C10
GRM32ER71H106KA12L
GRM188R71H222KA01D
GRM188R71H104KA93D
GRM21BR71C475KA73
GRM188R71H103KA01D
10/19
1210
Murata
Corporation
Ceramic Capacitor
2200pF, 50V, X7R
0603
C11, C20, C23, C25, C45, C47,
C48, C50
Murata
Corporation
Ceramic Capacitor
0.1µF, 50V, X7R
0603
Murata
Corporation
Ceramic Capacitor
4.7µF, 16V, X7R
C12, C18, C42, C49
0805
C14, C15, C17, C19, C22, C40,
C41, C43, C46
Murata
Corporation
Ceramic Capacitor
0.01µF, 50V, X7R
0603
© 2014 Exar Corporation
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
Ref.
Qty Manufacturer
Part Number
Size
Component
Murata
1
Ceramic Capacitor
0.01µF, 50V, X7R
C24
GRM155R71H103KA88D
0402
Corporation
POSCAP Capacitor
330µF, 6.3V, 9mΩ
C26, C33, C53
3
1
1
Panasonic/Sanyo
6TPF330M9L
7343 D3L
1206
Ceramic Capacitor
10µF, 35V, X7R
C39
C44
TDK Corporation C3216X7R1V106K160AC
Murata
Ceramic Capacitor
2.2µF, 16V, X7R
GRM21BR71C225KA12L
Corporation
0805
GC1, GC2
GC3, GC4
2
2
Vishay Dale
Vishay Dale
CRCW12060000Z0EAHP
CRCW12100000Z0EA
1206
1210
RES 0Ω, 1/2W, SMD
RES 0Ω, 1/2W, SMD
RES 2.2Ω, 1/10W, 1%,
R6
1
6
Panasonic
Panasonic
ERJ-3RQF2R2V
ERJ-6GEY0R00V
0603
0805
SMD
R16, R35, R36, R37, R38, R39
RES 0Ω, 1/8W, SMD
Connector, Male
Header, 2 Positions,
100mil Spacing,
Vertical, TH
JP1, JP2
2
Wurth Elektronik
61300211121
0.20x0.10in
Sullins
Connector
Solutions
Connector, Female
Header, 20 Positions,
100mil Spacing, RA, TH
SFH11-PBPC-D10-RA-
BK
P1
P2
1
1
1.20x0.55in
0.60x0.40in
Connector, Power Jack
Mini R/A, T/H
Switchcraft
RAPC722X
Connector, Male
Header, 15 Positions,
100mil Spacing,
Vertical, TH
P3
1
Wurth Elektronik
61301511121
1.50x0.10in
T1, T4, T8, T10, T13, T30
6
8
Wurth Elektronik
Wurth Elektronik
61300111121
7471287
0.10x0.10in Square Test Posts, TH
T22, T23, T24, T25, T26, T27,
T28, T29
0.32x0.10in
Mounting Tabs
GND, OUT1, OUT2, OUT3, OUT4,
VIN
Vector
Electronics
6
K30C/M
Round Test Posts, TH
© 2014 Exar Corporation
11/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
EVALUATION BOARD LAYOUT
Figure 3 Component Placement – Top Side
© 2014 Exar Corporation
12/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
Figure 4 Layout – Top Layer
© 2014 Exar Corporation
13/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
Figure 5 Layout – Bottom Layer
© 2014 Exar Corporation
14/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
Figure 6 Layout – Middle Layer 1
© 2014 Exar Corporation
15/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
Figure 7 Layout – Signal Ground Plane
© 2014 Exar Corporation
16/19
Rev. 1.0.0
1
2
3
4
5
6
+5V
APPENDIX I – XR77EVB-INT-1 ARDUINO CONTROLLER INTERFACE BOARD SCHEMATICS
R4
4.7k
R3
R2
1.2K
1.2K
1
3
4
PRGM_INIT
PRGM_DONE
PRGM_ERROR
DS1
A
B
C
D
A
B
C
D
C5
DNS
P_IOH1
JP1
2
SCL
SDA
AREF
10
9
8
7
6
5
4
3
2
1
P_POWER1
P1
JP2
SW1
DS2
SCL
SDA
1
2
3
4
5
6
7
8
2
4
6
8
1
3
5
7
9
GPIO0
GPIO1
GND
T1
R10 DNS
RESET
+3V3
+5V
GND
I2C_POWER
0805
T2
T3
T4
T5
R11 DNS
JP3
ENABLE
LDO5
LDO3V3
PSIO1
VIN_BOARD
VIN
10
0805
GND
GND
12 11
14 13
16 15
18 17
20 19
T20
T21
ENABLE_L
PSIO2
PSIO0
T9
T6
R12 DNS
T22
Header 1X8 female H8.5mm
Header 1X10 female H8.5mm
P_IOL1
+5V
T26
GND
0805
Header 2X10 shrouded male
GND
ENABLE
PSIO2_uC
PSIO1_uC
PSIO0_uC
GPIO1
GPIO0
TXD
RXD
T7
8
7
6
5
4
3
2
1
P_AD1
GND
T10
T11
T13
T15
T17
GND
1
2
3
4
5
6
T12
T14
T16
R9
0
I2C_POWER
T18
0805
T19
Header 1X6 female H8.5mm
Header 1X8 female H8.5mm
T27
R14
DNS
R5
R6
R1
0
0
0
SDA
SCL
PSIO0_uC
PSIO0
0805
0805
R15
DNS
0805
PSIO1_uC
PSIO2_uC
PSIO1
PSIO2
T28
0805
0805
T29
JP6
JP7
I2C_POWER
+5V
I2C_POWER
+5V
SCL
R8
4.7k
R7
4.7k
C1
10V
22uF
C2
C3
C4
10V
22uF
10V
22uF
10V
22uF
CON5
JP4
JP5
SCL
SDA
1
3
5
7
9
2
4
6
8
10
SDA
T25
T24
T23
GND
GND
GND
GND
R13 DNS
ENABLE_L
VIN_L
VIN
T8
0805
GND
GND
SCL
SDA
1
2
3
4
P2
GND
E
X
A
R
Title:
Size:
XRP2ARDEVB-INT-1
4 8 7 2 0 K a t o R o a d
F r e m o n t , C A 9 4 5 3 8
w w w . e x a r . c o m
2.0
Rev:
Sheet 1 of 1
17/19
Name:XRP2ARDUINO_Interface.SchDoc
B
Date: 10/29/2013 Time:12:07:02 PM
File: J:\Apps_Simo\XRP2ARDEVB-INT-1\board\XRP2ARDUINO_Interface.SchDoc
1
2
3
4
5
6
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
BILL OF MATERIAL - XR77EVB-INT-1 ARDUINO CONTROLLER INTERFACE BOARD
Ref.
Qty
Manufacturer
Part Number
Size
Component
1
Exar Corporation
146-6703-01
4.40x2.10
PCB
DS1
DS2
1
1
Wurth Elektronik
Wurth Elektronik
150120RS75000
150120VS75000
1206
1206
SMD Red Chip LED
SMD Green Chip LED
Tantalum Capacitor 22µF,
C1, C2, C3, C4
4
Vishay Sprague
293D226X9010B2TE3
B
10V, 10%
R1, R5, R6, R9
R2, R3
4
2
3
1
Panasonic
Panasonic
ERJ-6GEY0R00V
ERJ-6GEYJ122V
ERJ-6GEYJ472V
430182050816
0805
0805
RES 0 Ω, 1/8W, 5% SMD
RES 1.2kΩ, 1/8W, 5%, SMD
RES 4.7kΩ, 1/8W, 5%, SMD
Tact Switch, SMD
R4, R7, R8
SW1
Panasonic
0805
Wurth Elektronik
6x6mm
Connector, Male Header, 10
Positions, Dual Row, 100mil
Spacing, Vertical, TH
CON5
1
5
2
1
1
1
2
Wurth Elektronik
Wurth Elektronik
Wurth Elektronik
Wurth Elektronik
Wurth Elektronik
Wurth Elektronik
Wurth Elektronik
61301021121
61300211121
61300311121
612020235221
653104124022
61301011121
61300811121
0.50x0.20in
0.20x0.10in
0.30x0.10in
1.20x0.55in
11x6mm
Connector, Male Header, 2
Positions, 100mil Spacing,
Vertical, TH
JP1, JP2, JP3, JP4, JP5
Connector, Male Header, 3
Positions, 100mil Spacing,
Vertical, TH
JP6, JP7
Connector, Male Header, 20
Positions, Dual Row, 100mil
Spacing, Shrouded, RA, TH
P1
P2
Wire-to-Board Connector,
Male, 4 Positions, 1.25mm
Spacing, Shrouded, SMT
Connector, Male Header, 10
Positions, 100mil Spacing,
Vertical, TH
P_IOH1
1.00x0.10in
0.80x0.10in
Connector, Male Header, 8
Positions, 100mil Spacing,
Vertical, TH
P_POWER1, P_IOL1
Connector, Male Header, 6
Positions, 100mil Spacing,
Vertical, TH
P_AD1
1
3
Wurth Elektronik
Wurth Elektronik
61300611121
61300111121
0.60x0.10in
0.10x0.10in
T23, T24, T25
Square Test Posts, TH
© 2014 Exar Corporation
18/19
Rev. 1.0.0
XRP7724/7725EVB-DEMO-2
Quad Channel Digital PWM/PFM Demo Board
Programmable Power Management System
DOCUMENT REVISION HISTORY
Revision
Date
Description
05/12/2014
Initial release of document
1.0.0
BOARD REVISION HISTORY
Board Revision
Date
Description
Initial release of the evaluation board
XRP7724/7725EVB-
DEMO-2-01
05/12/14
FOR FURTHER ASSISTANCE
Email:
customersupport@exar.com
powertechsupport@exar.com
Exar Technical Documentation:
http://www.exar.com/TechDoc/default.aspx?
EXAR CORPORATION
HEADQUARTERS AND SALES OFFICES
48720 Kato Road
Fremont, CA 94538 – USA
Tel.: +1 (510) 668-7000
Fax: +1 (510) 668-7030
www.exar.com
NOTICE
EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve
design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any circuits described herein,
conveys no license under any patent or other right, and makes no representation that the circuits are free of patent
infringement. Charts and schedules contained here in are only for illustration purposes and may vary depending upon a
user’s specific application. While the information in this publication has been carefully checked; no responsibility, however,
is assumed for inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or
malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its
safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in
writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all
such risks; (c) potential liability of EXAR Corporation is adequately protected under the circumstances.
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
© 2014 Exar Corporation
19/19
Rev. 1.0.0
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