Diodes AL3158 Manuel d'utilisateur télécharger pdf (Page 2)

AL3158

HIGH EFFICIENCY 1x/2x CHARGE PUMP

FOR WHITE LED APPLICATIONS

AL3158

Document number: DS35047 Rev. 2 - 2

2 of 10

www.diodes.com

January 2011

NEW PRODUCT

Pin Descriptions

Pin Name Pin Number Description

D8 1 Current sink input #8. Connected to VOUT when un-used.

D9 2 Current sink input #9. Connected to VOUT when un-used.

EN1 3 Enable Pin 1

EN3 4 Enable Pin 3

EN2 5 Enable Pin 2

PGND 6 Charge Pump Switch Ground

CN 7 Negative Terminal of Flying Capacitor

VIN 8 Input Power Supply. Requires 2.2µF capacitor between this pin and ground.

CP 9 Positive Terminal of Flying Capacitor

NC 10,19 No-Connect

OUT

Charge pump output to drive load circuit. Requires 2.2µF capacitor between this pin

and ground.

D1 12 Current sink input #1. Connected to V

OUT

when un-used.

D2 13 Current sink input #2. Connected to V

OUT

when un-used.

D3 14 Current sink input #3. Connected to V

OUT

when un-used.

D4 15 Current sink input #4. Connected to V

OUT

when un-used.

D5 16 Current sink input #5. Connected to V

OUT

when un-used.

D6 18 Current sink input #6. Connected to V

OUT

when un-used.

GND 17 Ground

D7 20 Current sink input #7. Connected to V

OUT

when un-used.

GND EP PAD Exposed Pad (bottom). Connected to GND directly underneath the package.

Functional Block Diagram

1 2 3 4 5 6 7 8 9 10

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Diodes AL3158 Manuel d'utilisateur Page 2

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