ZXSC300(2001) Ver la hoja de datos (PDF) - Zetex => Diodes

Número de pieza

componentes Descripción

Fabricante

ZXSC300
(Rev.:2001)

SINGLE OR MULTI CELL LED DRIVER SOLUTION

Zetex => Diodes 

ZXSC300

REFERENCE DESIGNS

Two typical LED driving applications are shown.

Firstly a maximum brightness solution and

secondly an optimised battery life solution.

Maximum brightness solution

This circuit provides a constant current output to

the LED by rectifying the switching pulses. This

ensures maximum LED brightness.

VBATT

L1

100µH

U1

Vcc

Vdrive

Isense

Gnd

ZXSC300

D1

ZHCS1000

Q1

FMMT617

C1

2.2µF

LED1

WHITE LED

R1

0.1R

Material List

Ref

U1

Q1

D1

R1

C1

L1

LED1

Value

N/A

N/A

1A

100mΩ

2.2µF

100µH

5600mcd

Part Number

ZXSC300E5

FMMT617

ZHCS1000

Generic

Generic

DO1608P-104

NSPW500BS

Manufacture

Zetex Plc

Zetex Plc

Zetex Plc

Various

Various

Coilcraft

Nichia

Comments

Single cell converter, SOT23-5

Low VCE(sat) NPN, SOT23

1A Shottky diode, SOT23

0805 Size

Low ESR ceramic capacitor

Surface mount inductor

White LED

ISSUE 1 - JUNE 2001

6

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