Datasheet > BP5843A_10

BP5843A_10

更新时间： 2022-10-17 08:35:11

品牌	Logo	应用领域
罗姆 - ROHM		驱动器
页数	文件大小	规格书
4页	1056K
描述
Isolated High-power LED Driver for Illumination

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BP5843A_10 数据手册

Data Sheet

100VAC Input/Constant Current

Isolated High-power LED Driver for Illumination

BP5843A

Absolute Maximum Ratings

Dimensions (Unit : mm)

Parameter

Input voltage

Symbol

Limits

Unit

Conditions

32.6MAX.

15.8MAX.

170

1.8

Output voltage

Withstand voltage

Vpk

MARKING SIDE

1s (between primary and secondary)

Ambient temperature + module

Maximum surface temperature

Tcmax

105

°C

self-heating

Tcmax

10 11

Refer to derating curve

Operating temperature range

Storage temperature range

−20 to +80

−25 to +85

Topr

Tstg

°C

0.5

±0.05

0.75

0.2

0.1

P=2.54

0.2

1.3

11.05MAX.

3.55MAX

4.75MAX.

2.54x10=25.4 TYP.

Electrical Characteristics

Derating Curve

Parameter

Symbol Min.

Typ.

141

350

−

Max.

170

369

0.5

−

Conditions

Unit

Derating Curve

Vp-p

Input voltage range

Output current

Output voltage range

Output ripple voltage

Power conversion efficiency

113

332

2.5

−

Vi=141V, R1=0.82Ω (1%)

Vi=141V, lo=350mA

∗1

∗2

Operation Range

Vi=141V, Vo=12V, lo=350mA

∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve.

-30 -20 -10

0 10 20 30 40 50 60 70 80 90

∗2 Spike noise is not included in output ripple voltage.

Ambient Temperature Ta(°C)

Application Circuit

BP5843A

Output Characteristics

Output characteristics

Pin No.

Function

Input terminal (+)

0.40

R1=0.91Ω

0.35

Skip

0.30

Input terminal (−)

Operation Range

0.25

Skip

Be sure to use fuse for safety

10 11

0.20

R1=

0.15

0.10

0.05

0.00

Skip

Output capacitor connection terminal

LED connection terminal (cathode)

LED connection terminal (anode)

10 12 14 16

LF1

Output Voltage(V)

ZNR1

Current Setting

Output current-Setting resistor

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

External Component Specifications

C1 : Input Capacitor

C2 : Output Capacitor

10µF/250V

40µF/25V ceramic capacitor

0.82Ω ±1% 1/4W (lo=350mA)

R1 : Output current setting

resistor

0.24 0.26 0.28 0.30 0.32 0.34 0.36

Output current : (A)

Use if necessary

Capacitance : 0.1 to 0.22µF

Rated voltage : 250V or higher

C3, C4: Noise Removal

Capacitor

How to calculate R1

R1=0.13741/(0.91 x lo-0.151)

lo : Output current

C5 : Noise Removal Capacitor 2200pF (Basic insulation)

D1: Diode bridge

F1: Fuse

800V/1A

A fuse must be used for safety

10mH

LF1: Line Filter

ZNR1: Varistor

A varistor is required to protect against lightning surges

and static electricity.

www.rohm.com

2010.01 - Rev.A

1/1

12 3 4

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