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User Guide 035

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ISL78171EVAL1Z Evaluation Board Schematic 

FIGURE 7.  SCHEMATIC (PAGE 1)

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UPDATED BY:

05/04/2015

ISL78171

EVALUATION BOARD

THEJU BERNARD

~/ISL78171/ISL78171EVAL1ZA

1

 

 

SCHEMATIC

TIM KLEMANN

AGND

PGND

PGND

PMBUS DONGLE

STANDARD

CONNECTOR FOR

JP1

JP1A

JP2A

JP3A

JP4A

JP5A

JP29

JP9

BOOST_VIN

CH0

CH1

CH2

CH3

CH4

CH5

EN

EN_IN

FAULT

FPWM

PWM

PWM

RSET

RSET

S

C

L_IC

SCL_S

SCL_S

SDA_IC

SDA_S

SDA_S

VDC

VDC

VIN

VIN_IN

VLOGIC

VOUT

E

E

E

E

E

OUT

OUT

IN

IN

IN

IN

IN

IN

IN

IN

IN

OUT

10

9

4

1

6

5

3

2

7

8

J7

22-05-3101

1

2

4.99

R3

TP8

TP7

1

2

TP9

J3

220PF

C21

J2

/SDA

/SC

L

ISL78171IRZ

U1

1

FAULT

2

VIN

3

EN

4

VDC

5

PWM

6

SMBDAT

7

SMBC

LK

8

FP

W

M

9

AG

N

D

10

CH0

11

CH1

12

CH2

13

CH3

14

CH4

15

CH5

16

OVP

17

R

SET

18

CO

M

P

19

PG

N

D

20

LX

21

EP

J1

J39-1

1

3

390P

F

C20

2

XAL6060-153ME

L1

15UH

4

L1A

DNP

1

2

TP11

TP10

10K

R2

DNP

R9

C8

0.033UF

R4

4.99

R16

4.99K

0

R10

TP14

1M

RA1

C23

O

PEN

D1

PMEG6030EP

1

2

C22

OPEN

R14

0

XAL6060-153ME

L2

15UH

DNP

L2A

J31A

1

2

R13

DNP

1M

RA2

C10

O

PEN

C7

1UF

100P

F

C9

C3

4.

7UF

0.10UF

C19

4.

7UF

C1

R7

4.

7K

2.21K

R12

C4

4.

7UF

TP12

R2A

10K

357K

R1

4.

7UF

C17

C5

4.

7UF

R6

4.

7K

4.

7UF

C6

C2

0.

10UF

C18

O

PEN

J5

TP13

J4

FDS4435BZ_F085

Q1

Summary of Contents for ISL78171EVAL1Z

Page 1: ...40V max LED string current 20mA typical PCB Details Board dimension 5 525x2 550inch Number of layers 2 Type FR4 Copper thickness 2oz Key Features Integrated 40V boost converter 6 Precision current si...

Page 2: ...controller bus to either J7 or J39 6 Set device address to 0x58 7 IC enable is shorted to VIN by connecting jumper JP2A 2 3 so that the EN is driven by TP9 8 VLOGIC level for I2C can be generated fro...

Page 3: ...e PGND plane and AGND plane separate and connect them at the thermal pad EMI Considerations The LX node switches at the VIN potential so its capacitance to GND should be made minimized This is achieve...

Page 4: ...User Guide 035 4 UG035 0 June 15 2015 Submit Document Feedback ISL78171EVAL1Z Layout FIGURE 3 SILKSCREEN TOP...

Page 5: ...User Guide 035 5 UG035 0 June 15 2015 Submit Document Feedback FIGURE 4 TOP LAYER ISL78171EVAL1Z Layout Continued THIS TRACE IS A SHIELD DRAIN CONNECTION...

Page 6: ...User Guide 035 6 UG035 0 June 15 2015 Submit Document Feedback FIGURE 5 BOTTOM LAYER ISL78171EVAL1Z Layout Continued...

Page 7: ...User Guide 035 7 UG035 0 June 15 2015 Submit Document Feedback FIGURE 6 SILKSCREEN BOTTOM ISL78171EVAL1Z Layout Continued...

Page 8: ...VDC VIN VIN_IN VLOGIC VOUT E E E E E OUT OUT IN IN IN IN IN IN IN IN IN OUT 10 9 4 1 6 5 3 2 7 8 J7 22 05 3101 1 2 4 99 R3 TP8 TP7 1 2 TP9 J3 220PF C21 J2 SDA SCL ISL78171IRZ U1 1 FAULT 2 VIN 3 EN 4 V...

Page 9: ...5 J26 J27 J28 J6 CH0 CH1 CH2 CH3 CH4 CH5 VOUT OUT OUT OUT OUT OUT OUT IN D19 D60 D25 D9 1 2 1 2 D45 1 2 1 2 1000PF C14 D39 1 2 D18 D59 TP1 D24 D8 1 2 D44 1 2 1 2 TP5 D38 D7 1 2 D17 D58 1000PF C11 D23...

Page 10: ...L2 COIL PWR INDUCT SMD 15 H 20 39 7m 11Mhz 6 5X6 3mm ROHS COILCRAFT 1514 2 5 ea J1 J5 CONN TURRET TERMINAL POST TH ROHS KEYSTONE 22 05 3101 1 ea J7 CONN HEADER TH 10P 2 54mm R A FRICTIONLOCK ROHS MOL...

Page 11: ...ES AEC Q200 SMD 0603 4 7k 1 10W 1 TF ROHS VISHAY DALE CRCW06034K99FKEA 1 ea R16 RES AEC Q200 SMD 0603 4 99k 1 10W 1 TF ROHS VISHAY DALE RC0805FR 074R99L 2 ea R3 R4 RES SMD 0805 4 99 1 8W 1 TF ROHS YAG...

Page 12: ...AT 25 C vs VIN EFFICIENCY LED CURRENT A 50 55 60 65 70 75 80 85 90 95 0 0 02 0 04 0 06 0 08 0 10 0 12 0 14 0 16 0 18 0 20 5V 12V 24V 26 5V 50 55 60 65 70 75 80 85 90 95 0 0 02 0 04 0 06 0 08 0 10 0 1...

Page 13: ...ypical Performance Curves Continued EFFICIENCY LED CURRENT A 50 55 60 65 70 75 80 85 90 95 0 0 02 0 04 0 06 0 08 0 10 0 12 0 14 0 16 0 18 0 20 5V 12V 24V 26 5V 60 65 70 75 80 85 90 95 0 5 10 15 20 25...

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