BP5226-18_10 datasheet, PDF - EEWORLD Datasheet

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BP5226-18_10: DescriptionStep-down DC/DC Converter(Non-isolated); File Size99KB，1 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/

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BP5226-18_10 Overview

Step-down DC/DC Converter(Non-isolated)

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Data Sheet

18V/500mA Output

Step-down DC/DC Converter(Non-isolated)

BP5226-18

Absolute Maximum Ratings

Parameter

Input voltage

Operating temperature range

Storage temperature range

Maximum surface temperature

Maximum output current

Symbol

Topr

Tstg

Dimensions (Unit :

)

Limits

Unit

Conditions

Refer to derating curve

(Ambient temperature +

the module self-heating) Tcmax

°C

mApk

Tcmax

Iomax

Electrical Characteristics

Symbol

Parameter

Input voltage range

Output voltage

Output current

Line regulation

Load regulation

Output ripple voltage

CTL pin OFF voltage

CTL pin ON voltage

CTL terminal pull-up resistance

Power conversion efficiency

Min.

Typ.

Max.

Unit

Conditions

Vi=34V, Io=500mA

Vi=34V

Vi=20 to 46V, Io=500mA

Vi=34V, Io=0 to 500mA

Vi=34V, Io=500mA

SW1 OFF (VoOFF)

SW1 ON (VoON)

Vi=34V, Io=500mA

Derating Curve

600

Output Current Io(mA)

500

400

300

200

100

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

Ambient Temperature Ta(

°C

)

Operation Range

Derating Curve

Conversion Efficiency

100

Conversion Efficiency

(Ta=25

°C

, Vi=34V)

Application Circuit

BP5226-18

Pin No.

Function

Output terminal:Vo(18V)

CTL terminal

Power inductor terminal

Skip

Power inductor terminal

Skip

COMMON

Skip

Input terminal

N.C.

Input terminal

100

200

300 400

Output Current Io(mA)

500

1211 10

321

Load Regulation

20.0

18.0

16.0

14.0

12.0

10.0

8.0

6.0

4.0

2.0

Load Regulation

(Ta=25

°C

, Vi=12V)

Output Voltage Vo(V)

AC24V

FUSE

Ctl

Be sure to use fuse for safety.

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

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

Input terminal is 10 and 12.

External Component Specifications

FUSE: fuse

C1: Input capacitor

C2: Output capacitor

L1: Power inductor

D1: Diode

Above 60V, current:above 1.0A

Use a quick-acting fuse (1.8A)

0 100 200 300 400 500 600 700 800

Output Current Io(mA)

www.rohm.com

1/1

2010.03 -

Rev. B

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