XRP7725EVB-DEMO-2-KITA [EXAR]

EVAL KIT 4CH BUCK REG;


型号：	XRP7725EVB-DEMO-2-KITA
厂家：	EXAR CORPORATION
描述：	EVAL KIT 4CH BUCK REG
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

variety of functions. Unused

FEATURES

GPIO/PSIO pins can be programmed as I/O

expansion for a microcontroller. The board is

supported by PowerArchitect^TM5.1 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

GL_RTN2

GL2

LX2

AVDD

VOUT1

VOUT2

VOUT3

VOUT4

GPIO0

GPIO1

SDA

GH2

BST2

GL_RTN3

GL3

XRP7724/XRP7725

TQFN

7mm X 7mm

LX3

GH3

Exposed Pad: AGND

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.

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

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

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.

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.

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.

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

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 PowerArchitect^TM5 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 PowerArchitect^TM5.1 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”. PowerArchitect^TM

will load the default configuration

automatically.

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

V_INconnectors.

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.

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

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 V_OUTreadings as

well as the in-regulation indicators.

Click the Flash button.

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 V_IN

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

XRP7724/7725EVB-DEMO-2 by default. There

is a loading option to pull PSIOs up to LDO5 if

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)

communicate

with

the

XRP7724/7725EVB-DEMO-2

board.

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.

8/19

Rev. 1.0.0

VCC

R16

VIN

DNS

VIN

LDO5

0603

0 ⁰⁸⁰⁵

EVALUATION BOARD SCHEMATICS

35V

120uF

DNS

C38

DNS

50V

0603

GND

BST1

C11

LX1

GC1

0.1UF

VIN_CH1

VIN

1206

R19 DNS

AVDD

GH1

0603

C56

DNS

T22

C18

16V

4.7UF

C19

50V

0.01UF

C24

25V

0.01UF

FDMC8200

OUT1

GND

CH1_OUT

744314490

4.9uH

JP1

35V

10UF

DNS

Pad - Not Part

GND

10V

47uF

VOUT1

C60

DNS

10V

47uF

50V

1UF

T18

R20 DNS

R17

DNS

GL1

T23

0603

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

GC2

GND

VIN_CH2

VIN

GND

1206

BST1

GH1

BST1

GH1

LX1

R22 DNS

C55

DNS

T24

LDO5

VIN

VCCD

GH2

DNS

0603

LX1

2.2 OHM

0603

GL1

GL_RTN1

VOUT1

C12

16V

C15

50V

0.01UF

CPLL

BFB

0603

R43

R42

VOUT1

C45

FDMC8200

OUT2

4.7UF

DNS

0.1UF

50V

GND

CH2_OUT

C16

DNS

C57

35V

LDO5

LDO3V3

744314330

3.3uH

10UF

LDO5

LDO3_3

0805

DNS

Pad - Not Part

GND

VCCD

C49

GND

VCCD1-2

T19

16V

4.7UF

5VEXT

AVDD

10V

47uF

10V

47uF

VOUT2

5VEXT

R21 DNS

C61

DNS

GND

GL2

50V

1UF

0603

DS1

DNS

C13

DNS T8

BST2

GH2

T25

R18

DNS

AVDD

DVDD

BST2

GH2

LX2

GND

R9 DNS

LX2

0603

GL2

GND

GL2

GL_RTN2

VOUT2

GND2

0603

0805

GND

GPIO0 R35

GPIO1

VOUT2

GPIO0

GPIO1

GC3

0805

R36

C48

0.1UF

50V

VIN_CH3

VIN

GND PCB Constraint: CH2 power ground meets EVB signal ground through vias at Cout

T11

T30

1206/1210

LDO3V3

SDA

SCL

FDMC8882

SDA

SCL

C54

DNS

BST3

GH3

GND

LX3

R24DNS

BST3

GH3

LX3

GH3

C23

GL3

C44

0603

0805

C17

50V

0.01UF

PSIO0

PSIO1

PSIO2

R37

R10

DNS

0603

PSIO0

PSIO1

PSIO2

0805

16V

2.2UF

R38

GL3

T26

GL3

GL_RTN3

VOUT3

0805

GND GND GND

R39

50V

0603

VOUT3

GND

BST3

OUT3

LX3

CH3_OUT

0.1UF

0603

C47

GND

744314200

2.0uH

R12

ENABLE

0.1UF

50V

R13

Pad - Not Part

ENABLE

0805

VCCD

C42

VCCD3-4

R23DNS

C26

6.3V

330uF

C27

T12

VOUT3

C21

35V

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

BST4

GH4

BST4

GH4

LX4

GND

LX4

10UF

C29

DNS

T10

DNS

FDMC7660

R11

0603

GL4

GL_RTN4

VOUT4

GND3

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

_DSIR474DP

R33DNS

GH4

GND

0603

GND

T28

50V

0603

BST4 C25

OUT4

0.1UF

LX4

CH4_OUT

T17

T21

7443551130

1.3uH

R15

Pad - Not Part

T15

R14

DNS

R32DNS

C34

DNS

C33

6.3V

330uF

C53

6.3V

330uF

GL4

C58

VOUT4

C35

DNS

C32

10V

47uF

C36

50V

1UF

0603

C31

C30

DNS

R34

DNS

35V

10UF

35V

10UF

FDMS7560S

C37

DNS

T13

GND4

GND

T14

GND

T29

VIN

PCB Constraint: CH4 power ground meets EVB signal ground through vias at Cout

LDO5

LDO3V3

SCL

SDA

GPIO0

GPIO1

R31 DNS

R26

R25

LDO5

R27

R28

R30

R40

R41

DNS

0603

AVDD

R44

DNS

0805

DNS

GPIO0

GPIO1

LDO5

LDO3V3

PSIO1

12 11

14 13

16 15

18 17

20 19

DNS

SDA

SCL

JP2

ENABLE

PSIO2

PSIO0

PSIO1

PSIO2

GPIO0

GPIO1

SDA

SCL

PSIO0

PSIO1

PSIO2

T16

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

^TitleXRP772xEVB-DEMO-2

Size:

Rev:

Name:_{XRP7724.SchDoc}

1.0

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

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

Exar Corporation

146-6708-01

4.05x2.70in

PCB

2nd Generation 4Ch.

Sw. Controller

XRP7724/XRP7725

FDMC8200

TQFN44

Power 33

Dual N-Channel Power

Trench MOSFET

Q1,Q2

Fairchild

N-Channel Power

Trench MOSFET

FDMC7660

Power 33

N-Channel Power

Trench MOSFET

Fairchild

FDMC8882

MLP 3.3X3.3

PowerPAK

SO-8

N-Ch. 30-V (D-S)

MOSFET

Vishay Siliconix

Fairchild

SIR474DP

N-Channel Power

Trench SyncFET

FDMS7560S

Power 56

7.0x6.9mm

13.2X12.8mm

0805

Inductor 4.9uH,

14.5mΩ, 6.5A

Wurth Elektronik

744314490

Inductor 3.3uH,

9.0mΩ, 9.0A

744314330

Inductor 2.0uH,

5.85mΩ, 11.5A

744314200

Inductor 1.3uH,

1.8mΩ, 25A

C1, C6, C28, C36

C2, C3, C7, C9, C32, C52

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

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

Ceramic Capacitor

0.01µF, 50V, X7R

C24

GRM155R71H103KA88D

0402

Corporation

POSCAP Capacitor

330µF, 6.3V, 9mΩ

C26, C33, C53

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

Vishay Dale

CRCW12060000Z0EAHP

CRCW12100000Z0EA

1206

1210

RES 0Ω, 1/2W, SMD

RES 2.2Ω, 1/10W, 1%,

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

Wurth Elektronik

61300211121

0.20x0.10in

Sullins

Connector

Solutions

Connector, Female

Header, 20 Positions,

100mil Spacing, RA, TH

SFH11-PBPC-D10-RA-

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

Wurth Elektronik

61301511121

1.50x0.10in

T1, T4, T8, T10, T13, T30

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

K30C/M

Round Test Posts, TH

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

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

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

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

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

16/19

Rev. 1.0.0

+5V

APPENDIX I – XR77EVB-INT-1 ARDUINO CONTROLLER INTERFACE BOARD SCHEMATICS

4.7k

1.2K

PRGM_INIT

PRGM_DONE

PRGM_ERROR

DS1

DNS

P_IOH1

JP1

SCL

SDA

AREF

P_POWER1

JP2

SW1

DS2

SCL

SDA

GPIO0

GPIO1

GND

R10 DNS

RESET

+3V3

+5V

GND

I2C_POWER

0805

R11 DNS

JP3

ENABLE

LDO5

LDO3V3

PSIO1

VIN_BOARD

VIN

0805

GND

12 11

14 13

16 15

18 17

20 19

T20

T21

ENABLE_L

PSIO2

PSIO0

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

P_AD1

GND

T10

T11

T13

T15

T17

GND

T12

T14

T16

I2C_POWER

T18

0805

T19

Header 1X6 female H8.5mm

Header 1X8 female H8.5mm

T27

R14

DNS

SDA

SCL

PSIO0_uC

PSIO0

0805

R15

DNS

0805

PSIO1_uC

PSIO2_uC

PSIO1

PSIO2

T28

0805

T29

JP6

JP7

I2C_POWER

+5V

I2C_POWER

+5V

SCL

4.7k

10V

22uF

10V

22uF

10V

22uF

10V

22uF

CON5

JP4

JP5

SCL

SDA

T25

T24

T23

GND

R13 DNS

ENABLE_L

VIN_L

VIN

0805

GND

SCL

SDA

GND

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}

Date: 10/29/2013 Time:12:07:02 PM

File: J:\Apps_Simo\XRP2ARDEVB-INT-1\board\XRP2ARDUINO_Interface.SchDoc

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

Exar Corporation

146-6703-01

4.40x2.10

PCB

DS1

DS2

Wurth Elektronik

150120RS75000

150120VS75000

1206

SMD Red Chip LED

SMD Green Chip LED

Tantalum Capacitor 22µF,

C1, C2, C3, C4

Vishay Sprague

293D226X9010B2TE3

10V, 10%

R1, R5, R6, R9

R2, R3

Panasonic

ERJ-6GEY0R00V

ERJ-6GEYJ122V

ERJ-6GEYJ472V

430182050816

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

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

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

Wurth Elektronik

61300611121

61300111121

0.60x0.10in

0.10x0.10in

T23, T24, T25

Square Test Posts, TH

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.

19/19

Rev. 1.0.0

XRP7725EVB-DEMO-2-KITA [EXAR]

相关型号：

XRP7725ILB-F

XRP7725ILBTR-F

XRP7740

XRP7740EVB

XRP7740ILB-0X180-F

XRP7740ILB-AAAA-F

XRP7740ILB-F

XRP7740ILBTR-0X18-F

XRP7740ILBTR-AAAA-F

XRP7740ILBTR-F

XRP9710

XRP9710EY-F