DN71 datasheet(1/2 Pages) ZETEX

部品番号	DN71

部品情報	ZXSC400 Solution for Luxeon V Star high powered LED

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メーカー	ZETEX [Zetex Semiconductors]

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Issue 5 - July 2006

1

www.zetex.com

DN71

ZXSC400 Solution for Luxeon® V Star high powered LED

Description

This design note shows the ZXSC400 driving a Luxeon® V Star LED. The input voltage ranges

from 4.2V to 5.4 V with a maximum output current of 790mA at 5V input.

A typical schematic diagram is shown in Figure 1.

Figure 1

Schematic diagram

#

Ref.

Value

Part number

Manufacturer

Comments

U1

ZXSC400E6

Zetex

LED driver in SOT23-6

Q1

FZT1049

Zetex

Low sat NPN in SOT23

D1

2A

ZHCS2000

Zetex

2A Schottky in SOT23

L1

22mH

Generic

ISAT = 3A

R1

22mV

Generic

0805 size

R2

350mV

Generic

0805 size

C1

220mF

Generic

C2

450mF

Generic

Table 1

Bill of materials

Vcc

Gnd

Isense

Vdrive

Stdn

VFB

U1

ZXSC400

C2

L1

VIN=4.2V to 5.4V

C1

R1

R2

Q1

D1

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