Datasheet > BCR405U-E6433

BCR405U-E6433

更新时间： 2024-01-22 05:56:56

品牌	Logo	应用领域
英飞凌 - INFINEON		光电二极管
页数	文件大小	规格书
9页	118K
描述
Display Driver, BIPolar, PDSO5

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技术参数
数据手册

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BCR405U-E6433 技术参数

是否Rohs认证：	符合	生命周期：	Active
Reach Compliance Code：	compliant	风险等级：	5.76
JESD-30 代码：	R-PDSO-G5	端子数量：	5
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSOP
封装等效代码：	TSOP5/6,.11,37	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE	电源：	10 V
认证状态：	Not Qualified	筛选级别：	AEC-Q100
子类别：	Display Drivers	标称供电电压：	10 V
表面贴装：	YES	技术：	BIPOLAR
端子形式：	GULL WING	端子节距：	0.95 mm
端子位置：	DUAL	Base Number Matches：	1

BCR405U-E6433 数据手册

BCR405U

Application circuit:

Stand alone current source

Boost mode current source with

external power transistor

+Vs

BCR 405U

Rext

(optional)

Rext

(optional)

Vdrop

I_LED

2,3,5

Iout

2,3,5

Iout

Application hints

BCR405U serves as an easy to use constant current source for LEDs. In stand alone

application an external resistor can be connected to adjust the current from 50 mA to 65 mA.

Rext can be determined by using the diagram 'Output current versus external resistor',

or by refering to diagram 'Reference voltage versus output current'. Look for your desired

output current on the x axis and read out the corresponding Vdrop. Calculate Rext:

Rext = Vdrop / (Iout -(Vdrop/Rint))

Please take into account that the resulting output currents will be slightly lower due to the

self heating of the component and the negative thermal coefficient.

In boost mode configuration the LED current can be extended to drive high power LEDs.

Select the power trasistor according the power dissipation and output current requirements.

(e.g. BC817SU or BCX68-25, etc.) Dimension R2 to reduce the transistor current transfer

ratio to 20 ... 50. For ILED / Iout =50 e.g. ILED= 350 mA, Iout is 7 mA.

R2 = VbeON / Iout.

Dimension R1 for minimum supply voltage condition:

R1 = (Vsmin -1.4V -VbeON)/ Iout.

Please visit our web site for application notes: www.infineon.com/lowcostleddriver

• AN077 gives hints to thermal design

• AN097 helps in case of high supply voltages

• AN101 gives an overview to LED biasing

2009-07-31

1...4 5 678 9

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