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P

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January 2014 

 

Rev. 2.0.0 

 

Exar Corporation 

 

48720 Kato Road, Fremont CA 94538, USA 

 

Tel. +1 510 668-7000 – Fax. +1 510 668-7001 

EVALUATION BOARD SCHEMATICS 

GND

ENABLE_IC

AVDD

V5EXT

LDO5

LDO3V3

CPLL

VIN

GND

AVDD

GND

GND

LDO5

GND

LDO3V3

GND

GND

BST4

LX4

GL4

BST1

GH1

LX1

GL1

CH1_OUT

GND

VCCD

16V

4.7UF

0805

C24

GND

GND

BST2

GH2

LX2

GL2

CH2_OUT

BST3

GH3

LX3

GL3

CH3_OUT

GND

GND

GND

GND

VCCD

16V

2.2UF

0805

C38

GND

VOUT4_VPP

50V

2200pF

0603

C26

GND

35V

10UF

1210

C32

PS2

PS1

T10

DNS

0603

R4

DNS

0603

R3

PS1
PS2

GND

ENABLE

DNS

0603

R13

GND

PS3

PS3

DNS

0603

R2

SDA

SCL

ENABLE

VIN

GND

LDO5

T8

GPIO2

GPIO1

GND

T13

PS3

PS2

PS1

VPP

1

2

3

4

J2

Header 2X2

1

2

3

4

5

6

7

8

9 10

J3

Header 5X2

VPP

CH4_OUT

1 2 3

JP1

LDO5

GND

DNS

0603

R6

DNS

0603

R5

GND

GND

SDA

SCL

GPIO1

GPIO2

DNS

0603

R10

DNS

0603

R9

35V

10UF

1210

C13

744314490

4.9uH

L1

DNS

0805

R28

DNS

0603

C46

CH1_OUT

T1

VIN

6

8

5

7

1 2 3 4

Q1

FDMC8200

BST1

LX1

VIN

35V

10UF

1210

C45

GND

GL1

GH1

7443551130

1.3uH

L4

DNS

0805

R37

DNS

0603

C49

CH4_OUT

T4

DNS

0603

R14

DNS

0603

R15

VIN

LX4

BST4

GH4

GL4

50V

0.1UF

0603

C19

35V

10UF

1210

C14

DNS

0603

R23

6.3V

47uF

1210

C2

DNS

0805

R29

DNS

0603

C47

CH2_OUT

T2

VIN

744314330

3.3uH

L2

6

8

5

7

1 2 3 4

Q2

FDMC8200

VOUT2

GH2

GL2

LX2

BST2

VCCD

SDA

SCL

ENABLE

GND

GND

T9

GND

VPP

1

2

3

4

P6

Header 2X2

1

2

3

4

5

6

P5

Header 3X2

1

2

3

4

5

6

7

8

9 10

P7

Header 5X2

1

2

P1

1888687

1

2

P4

1888687

1

2

P2

1888687

1

2

P10

1888687

GH4

T12

1.0V 10A

2.5V 3A

3.3V- 5.0V 3A

G

D

S

4

SL1

,S

L2

,M

B

SIR474DP

1,2

,3

Q6

G

D

S

4

SL1

,S

L2

,M

B

FDMS7560S

1,2

,3

Q5

VOUT4_VPP

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

P9

Header 15

PS1

PS2

PS3

GPIO1

GPIO2

GND

DNS

0603

R8

DNS

0603

R7

35V

10UF

1210

C20

744314200

2.0uH

L3

6.3V

100uF

1210

C3

DNS

0805

R31

DNS

0603

C48

CH3_OUT

T3

FDMC8882

G

D

S

4

5,6

,7

,8

1,2

,3

Q4

FDMC7660

G

D

S

4

5,6

,7

,8

1,2

,3

Q3

VIN

LX3

BST3

GH3

GL3

1

2

P3

1888687

1.5V 5A

T6

T11

GND

GND

CH1_OUT

DNS

0603

R1

V5EXT

T16

GND

PGND1

39

GL1

38

LX1

37

GH1

36

BST1

35

VI

N

41

DGND

17

LDO5

44

V5EXT

43

AVDD

4

SDA

11

SCL

12

GPIO1

9

GPIO2

10

PS1

13

PS2

14

ENABLE

40

VOUT1

5

PGND2

33

GL2

32

LX2

31

GH2

30

BST2

29

VOUT2

6

PGND3

28

GL3

27

LX3

26

GH3

25

BST3

24

VOUT3

7

PGND4

22

GL4

21

LX4

20

GH4

19

BST4

18

VOUT4

8

VCCD1-2

34

DVDD

16

AGND

2

AGND/

EXP

OS

ED P

AD

45

LDO3.3

1

CPLL

3

BFB

42

PS3

15

VCCD3-4

23

U1

SDA

SCL

GND

LDO5

LDO3V3

AVDD

2

3

1

P11

LDO5

LDO3V3

1

2

3

4

5

6

J1

Header 3X2

GND

T7

EX1

EX2

EX3

EX4

EX5

EX1

EX2

EX3

EX4

EX5

DNS

1206

R42

DNS

1206

R40

DNS

1206

R32

DNS

1206

R33

DNS

1206

R34

GPIO1

GPIO2

PS1

PS2

PS3

DNS

0603

R22

DNS

0603

R35

VCCD

GND

DNS

0603

R21

DNS

0603

R20

DNS

0603

R25

DNS

0603

R24

DNS

0603

R27

DNS

0603

R26

4.7K

0603

R16

4.7K

0603

R17

LDO5

DNS

0603

C36

GND

SDA

SCL

DNS

0603

R19

DNS

0603

R18

VOUT1

VOUT3

VOUT4

GPIO2

GPIO1

IO2

IO3

IO4

ENABLE

DNS

0603

R45

DNS

0603

R43

DNS

0603

R44

GND

VIN

IO2

IO3

IO4

SCL

SDA

GND

4

GND

5

VIN

6

A3

10

A4

11

A5

12

D2

15

D3

16

D4

17

D13

26

GND

27

AREF

28

P8

DNS

ENABLE_IC

T14

T15

DNS

0603

R38

DNS

0603

R36

DNS

0603

R39

DNS

0603

R41

T5

DNS

0603

R30

6.3V

47uF

1210

C6

6.3V

47uF

1210

C1

6.3V

47uF

1210

C5

35V

10UF

1210

C30

35V

10UF

1210

C31

6.3V

100uF

1210

C7

6.3V

100uF

1210

C4

6.3V

100uF

1210

C11

6.3V

100uF

1210

C12

6.3V

100uF

1210

C15

50V

1UF

0805

C10

50V

1UF

0805

C9

50V

1UF

0805

C8

50V

1UF

0805

C16

50V

0.01UF

0603

C27

50V

0.01UF

0603

C40

50V

0.01UF

0603

C29

50V

0.01UF

0603

C28

50V

0.01UF

0603

C34

50V

0.01UF

0603

C35

50V

0.01UF

0603

C23

50V

0.01UF

0603

C17

16V

4.7UF

0805

C18

16V

4.7UF

0805

C37

16V

4.7UF

0805

C39

50V

0.1UF

0603

C21

50V

0.1UF

0603

C22

50V

0.1UF

0603

C25

50V

0.1UF

0603

C33

50V

0.1UF

0603

C41

50V

0.1UF

0603

C42

50V

0.1UF

0603

C44

50V

0.1UF

0603

C43

DNS

0603

R11

DNS

0603

R12

 

Figure 1: XRP7720 /7724/7725 Evaluation Board Schematics 

 

 

Summary of Contents for XRP7720EVB-DEMO-1

Page 1: ...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 su...

Page 2: ...S3 GPIO1 GPIO2 GND DNS 0603 R8 DNS 0603 R7 35V 10UF 1210 C20 744314200 2 0uH L3 6 3V 100uF 1210 C3 DNS 0805 R31 DNS 0603 C48 CH3_OUT T3 FDMC8882 G D S 4 5 6 7 8 1 2 3 Q4 FDMC7660 G D S 4 5 6 7 8 1 2 3...

Page 3: ...RP7720 DEV Pin Assignment XRP7720 DEV PIN DESCRIPTION Name Pin Number Description VCC 41 Input voltage Place a decoupling capacitor close to the pin This input is used in UVLO fault generation DVDD 16...

Page 4: ...ivers the BST pin voltage to the high side FET gate each cycle GPI0 GPIO1 9 10 These pins can be configured as inputs or outputs to implement custom flags power good signals enable disable controls an...

Page 5: ...Description VCC 41 Input voltage Place a decoupling capacitor close to the pin This input is used in UVLO fault generation DVDD 16 1 8V supply for digital circuitry Connect pin to AVDD Place a decoupl...

Page 6: ...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 ex...

Page 7: ...el connector or a test bench DC power supply the voltage must be in the range of the controller VCC specification 5 5V to 18V connected to the Vin phoenix connector the positive side is indicated with...

Page 8: ...PowerArchitectTM 5 1 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 Auto...

Page 9: ...2014 Exar Corporation 9 16 Rev 2 0 0 Channels can be turned on off individually if desired Note Make sure there is a jumper shorting JP1 pins 1 and 2 installed on your board Channel 4 will not regulat...

Page 10: ...801 P0C4101 P0L102 P0P101 P0R101 P0R2001 P0R2101 P0R2102 P0T100 P0U105 N0CH10OUT N0CH10OUT N0CH10OUT N0VOUT1 P0C201 P0C601 P0C901 P0C4201 P0L202 P0P201 P0R2201 P0R2301 P0R2302 P0T200 P0U106 N0CH20OUT...

Page 11: ...PowerPAK SO 8 N Ch 30 V D S MOSFET L1 1 WURTH ELEKTRONIK 744314490 7 0x6 9mm Inductor 4 9uH 14 5m 6 5A L2 1 WURTH ELEKTRONIK 744314330 7 0x6 9mm Inductor 3 3uH 9 0m 9 0A L3 1 WURTH ELEKTRONIK 7443142...

Page 12: ...ONIK 613 010 243 121 2 54mm Angled Dual Socket 2 54mm dual Pin Socket Header WR PHD JP1 1 WURTH ELEKTRONIK 61300311121 2 54mm Pin Header 2 54mm Pin Header WR PHD 3 Pins JP1 jumper 1 WURTH ELEKTRONIK 6...

Page 13: ...el l D Di ig gi it ta al l P PW WM M P PF FM M D De em mo o B Bo oa ar rd d P Pr ro og gr ra am mm ma ab bl le e P Po ow we er r M Ma an na ag ge em me en nt t S Sy ys st te em m 2014 Exar Corporation...

Page 14: ...C Ch ha an nn ne el l D Di ig gi it ta al l P PW WM M P PF FM M D De em mo o B Bo oa ar rd d P Pr ro og gr ra am mm ma ab bl le e P Po ow we er r M Ma an na ag ge em me en nt t S Sy ys st te em m 2014...

Page 15: ...Qu ua ad d C Ch ha an nn ne el l D Di ig gi it ta al l P PW WM M P PF FM M D De em mo o B Bo oa ar rd d P Pr ro og gr ra am mm ma ab bl le e P Po ow we er r M Ma an na ag ge em me en nt t S Sy ys st t...

Page 16: ...ucts 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 unde...

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