bp5720-5 ROHM Co. Ltd., bp5720-5 Datasheet

bp5720-5

Manufacturer Part Number

bp5720-5

Description

100-220vac Input/5vdc 500ma Output Isolated Ac/dc Converter

Manufacturer

ROHM Co. Ltd.

Datasheet

1.BP5720-5.pdf (4 pages)

Current page: 1 of 4
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www.rohm.com

Isolated AC/DC Converter

100-220VAC Input/5VDC (500mA) Output

BP5720-5

External Component Layout

External Component Specifications

∗1: Measured peak-to-peak, ripple current bandwidth (spike noise not included).

Please verify operation and characteristics in the customer's circuit before actual usage.

Ensure that the load current does not exceed the maximum rating.

AC100V to 200V

C1: Output smoothing capacitor

C2: Noise reduction capacitor

C3: Output smoothing capacitor

C4: Input smoothing capacitor

C5: Noise reduction capacitor

C6: Output smoothing capacitor

C7: Noise reduction capacitor

D1: Noise reduction diode

D2: Diode bridge

D3: Rectifier diode

Input voltage

Output voltage

Output current

Line regulation

Load regulation

Output ripple voltage

Power conversion

efficiency

50Hz/60Hz

1-pin input voltage

4-pin input voltage

1-pin input current

Maximum power

Withstanding voltage

Allowable maximum

surface temperature

Operating

temperature range

Storage temperature

range

Therefore, a capacitance between 470µF to 2200µF is recommended, with a risetime of 10ms or less.

An excessively large capacitance at C4 may cause the output to become inactive.

DC coltage after sousing

Overcurrent (reset type) protection circuit is built in, preventing damage from occurring due to unexpected conditions

Absolute Maximum Ratings

Electrical Characteristics

Application Circuit

Operation Notes

Parameter

ZNR31

Use a fuse for safety

L31

Symbol

∆Vr

∆VI

∆γ

Symbol

Tcmax

VNd

Topr

Tstg

0.1µF/275VAC Safety regulation

Limits ripple current 100mArms or higher

2200pF Safety regulation

470µF/10V Low impedance part

0.1µF/275VAC Safety regulation

22µF/450V

2200pF/400V or higher

630V or higher 0.1 to 0.22µF

Use if necessary

800V/0.5A

800V/1A

60V/2A

Min.

4.75

113

−

−25 to +105

−25 to +80

+30 / −5

Limits

500

250

105

2.5

(Unless otherwise noted, Vi=141V, Io=500mA,Ta=25°C) (Vo=5V, R3/R4=open)

Typ.

141

100

5.0

−

BP5720-5

kVrms

Unit

Max.

°C

5.25

374

500

100

250

R1:

R2:

R3,4: Output voltage adjustment resistor By changing R3, R4, it is possible to adjust

L31: Line filter

T1:

F1:

F2:

ZNR31: Varistor

−

GND1

Switching transformer

Fuse

Resistor

Noise reduction resistor

Refer to the derating curve

1 sec (primary - secondary : 1 - 6Pin,

9 - 12Pin short)

Ambient temperature + The module

self-heating

mVp-p

Unit

R4 R3

1/1

GND2

Io=500mA

Vi=113V to 374V

Io=0mA to 500mA

Vi=141V

Conditions

Tcmax

No. Name

100kΩ±5% 2W 300V or higher

1W or higher 10 to 22Ω

10mH 0.2Arms or higher Safety regulation

Use if necessary

output voltage.

Refer to the output voltage adjustment notes at right

Ensure that it complies with safety regulations

Be sure to use this for safety.

A varistor is required to protect against

lightning surges and static electricity.

390V Safety regulation

GND1

GND2

VADJ

Nd+

Vi(-)

Np-

Conditions

Connect the negative side of

the primary coil of the external

transformer.

NC pin

Skip

This is connected to the plus

the external transformer.

NC pin

This is the primary side input

minus terminal.

Skip

End of secondary output

smoothing capacitor terminal.

Secondary 5V output

GND terminal.

Secondary output voltage

fine-tunning terminal.

Resistor has to be inserted

between GND2 or Vo terminals.

This is the secondary side 5V

output voltage control terminal.

Insert the output smoothing

capacitor 470 µF between GND.

side of the base coil wire of

Function

∗

3.3MAX.

Example) In case of Vo=5.3V

<<Output voltage adjustment>>

Adjust the output voltage by varying

R3 and R4.

(1)Output voltage range:

(2)Output voltage equations

Dimensions (Unit : mm)

Derating Curve

Conversion Efficiency

Load Regulation

Vo>5V , R4=37.6092 / (5.3-5 )kΩ

Thus, R3=open

Vo<5V, R3=(30.33Vo−37.2) / (5−Vo)kΩ

Vo=5V, R3, R4=open

Vo>5V, R3=open

4.0 to 6.0V

600

500

400

300

200

100

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0.0

Data Sheet

MARKING SIDE

-30-20-10 0 10 20 30 40 50 60 70 80 90

2.54X11=27.94 TYP.

P=2.54±0.2

4 5 6

50 100 150 100

R4=120kΩ (Vo=5.313V)

100 200

Ambient Temperature Ta( °C )

35.5MAX.

Output Current Io(mA)

R4=open

R4=37.6092/ (Vo-5)kΩ

2010.01 - Rev.A

=125.364kΩ

(Vi=311V, Ta=25°C)

Output Current Io(mA)

Operation Range

300 400 500

250 300 350 400 450

0.5±0.1

1.3±0.2

10 11 12

4.4MAX.

Maximum

Io=500mA

600 700 800

10.0MAX.

500

0.25±0.05

5.6MAX.

Related parts for bp5720-5

bp5720-5 Summary of contents

Page 1

... GND1 10 GND2 BP5720-5 11 VADJ 12 Vo R1: Resistor 100kΩ±5% 2W 300V or higher R2: Noise reduction resistor 1W or higher 10 to 22Ω Use if necessary R3,4: Output voltage adjustment resistor By changing R3, R4 possible to adjust output voltage. Refer to the output voltage adjustment notes at right L31: Line filter 10mH 0 ...

Page 2

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Page 3

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No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose ...

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