Rohm BD9E101FJ-EVK-001 User Manual Download Page 3

 

3/10

 

User

’s  Guide 

BD9E101FJ-EVK-001

 

© 2014 ROHM Co., Ltd.

 

No. 60UG012E Rev.003

 

APR.2017

 

1  BOOT

2  VIN

7  PGND

3  EN

4  AGND

SW  8

COMP  6

FB  5

U1
BD9E101FJ-LB

C7

C2

L1

C4

C6

R3

R1

R2

VIN

VOUT

C5

C1

C8

R4

C3

SW1

ON

OFF

GND

J1

TP1

TP2

J2

TP3

TP4

GND

TP5

TP6

Circuit Diagram 

 

V

IN

 = 7.2V to 36V, V

OUT

 = 5.0V 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2. BD9E101FJ-EVK-001 Circuit Diagram 

 

 

 

Bill of Materials 

2

C1, C7

Ceramic Capacitor

0.1µF

50V, B, ±20%

GRM188B31H104MA92

MURATA

1608

1

C2

Ceramic Capacitor

10µF

50V, B, ±10%

GRM32EB31H106KA12

MURATA

3225

0

C3

Ceramic Capacitor

-

Not installed

-

-

3225

1

C4

Ceramic Capacitor

22µF

10V, B, ±10%

GRM31CB31A226KE19

MURATA

3216

0

C5

Ceramic Capacitor

-

Not installed

-

-

3216

1

C6

Ceramic Capacitor 2200pF 50V, B, ±10%

GRM188B11H222KA01

MURATA

1608

1

C8

Ceramic Capacitor

100pF 50V, CH, ±5%

GRM1882C1H101JA01

MURATA

1608

1

L1

Inductor

4.7µH

±30%, DCR=26mΩmax, 4.1A

CLF7045T-4R7N

TDK

7269

1

R1

Resistor

12kΩ 1/10W, 50V, 1%

MCR03EZPFX1202

ROHM

1608

1

R2

Resistor

3kΩ

1/10W, 50V, 1%

MCR03EZPFX3001

ROHM

1608

1

R3

Resistor

24kΩ 1/10W, 50V, 1%

MCR03EZPFX2402

ROHM

1608

1

R4

Resistor

Jumper

MCR03EZPJ000

ROHM

1608

PH-1x03SG

USECONN

-

61300311121

Wurth Electronics Inc.

-

1

U1

IC

-

Buck DC/DC Converter

BD9E101FJ-LB

ROHM

SOP-J8

TB111-2-2-U-1-1

Alphaplus Connectors  & Cables

-

OSTTC022162

On Shore Technology Inc

-

MJ254-6BK

USECONN

-

969102-0000-DA

3M

-

1

-

Jumper

-

Jumper pin for SW1

2

J1, J2

Terminal Block

-

2 contacts, 15A, 14 to 22AWG

1

SW1

Pin header

-

2.54mm × 3 contacts

Reference

Designator

Count

Manufacturer

Part Number

Manufacturer

Configuration

(mm)

Type

Value

Description

 

 

 

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Summary of Contents for BD9E101FJ-EVK-001

Page 1: ...e phase compensation circuit Performance specification These are representative values and it is not a guaranteed against the characteristics VIN 24V VOUT 5 0V Unless otherwise specified Parameter Min...

Page 2: ...to TP4 for output voltage measurement 8 DC power supply output is turned ON 9 IC is enable EN by shorting Jumper pin of SW1 between intermediate terminal and ON side terminal 10 Check DC voltmeter 2...

Page 3: ...11H222KA01 MURATA 1608 1 C8 Ceramic Capacitor 100pF 50V CH 5 GRM1882C1H101JA01 MURATA 1608 1 L1 Inductor 4 7 H 30 DCR 26m max 4 1A CLF7045T 4R7N TDK 7269 1 R1 Resistor 12k 1 10W 50V 1 MCR03EZPFX1202 R...

Page 4: ...Ltd No 60UG012E Rev 003 APR 2017 Layout PCB size 50mm 50mm 1 6mm Figure 3 Top Silk Screen Top view Figure 4 Top Silk Screen and Layout Top view Downloaded from Arrow com Downloaded from Arrow com Dow...

Page 5: ...014 ROHM Co Ltd No 60UG012E Rev 003 APR 2017 Figure 5 Top Side Layout Top view Figure 6 L2 Layout Top view Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from...

Page 6: ...d No 60UG012E Rev 003 APR 2017 Figure 7 L3 Layout Top view Figure 8 Bottom Side Layout Top view Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com...

Page 7: ...0 4 0 5 0 6 0 7 0 8 0 9 1 Output Voltage Change Load Current A VIN 12V VIN 24V VO 5 0V Reference Application Data Figure 9 Efficiency vs Load Current Figure 10 Line Regulation Figure 11 Load Regulatio...

Page 8: ...e deg Phase Phase Gain Gain fC 28 2kHz Phase margin 78 6deg Gain margin 19 5dB fC 31 6kHz Phase margin 77 1deg Gain margin 18 9dB Figure 14 Loop Response VIN 24V VO 5 0V IO 1A Downloaded from Arrow co...

Page 9: ...s div Time scale 1 s div Time scale 1 s div Time scale 1 s div IO 0A IO 1A VO AC 50mV div VO AC 50mV div Figure 17 Output Voltage Ripple Wave VIN 12V VO 5 0V Figure 18 Output Voltage Ripple Wave VIN 2...

Page 10: ...VO 5 0V IO 0A VIN 10V div EN 10V div VO 5V div Time scale 5ms div Time scale 5ms div Figure 23 Start up by EN VIN 12V VO 5 0V IO 0A Figure 24 Power down by EN VIN 12V VO 5 0V IO 0A VIN 10V div EN 10V...

Page 11: ...requiring a high degree of reliability as exemplified below please contact and consult with a ROHM representative transportation equipment i e cars ships trains primary communication equipment traffic...

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