APW7071CE-TU Ver la hoja de datos (PDF) - Anpec Electronics

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APW7071CE-TU

White LED DC/DC Step-Up Converter

Anpec Electronics 

APW7071

Electrical Characteristics (Cont.)

Symbol

Parameter

Test Condition

OUTPUT

Vout

IFB

VFB

Adjustable output voltage range

Feedback input bias current

Feedback trip point voltage

OVP threshold

OVP hysteresis

VFB=0.3V

2.4≦VIN≦6.0V

APW7071

Min. Typ. Max. Unit

Vin

18

V

1

µA

0.237 0.25 0.263 V

16 17 18

V

5

6

7

V

Typical Application Circuit

Vin

2.7V~6V

C1

4.7µF

off on

D1

L1

MSCD052

Vout

4.7µH

6

VIN

1

SW

C2

0.1µF

2

GND

5

OVP

4

SHDN

3

FB

R1

13

Fig.1 Typical 4LED application

Vin

2.4V~6V

C1

4.7µF

off on

L1

10µH

D1

MSCD052

Vout

6

VIN

1

SW

C2

1µF

2

GND

5

OVP

4

SHDN

3

FB

R1

13

Fig.2 4LED application with

lower output voltage ripple

Copyright © ANPEC Electronics Corp.

4

Rev. A.1 - Feb., 2006

www.anpec.com.tw

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