On Semiconductor NCP5612 Evaluation Board NCP5612GEVB NCP5612GEVB NCP5612GEVB データシート

©

 Semiconductor Components Industries, LLC, 2006

Publication Order Number:

NCP5612

High Efficiency Ultra Small

Thinnest White LED Driver

The NCP5612 product is a dual output LED driver dedicated to the

LCD display backlighting.

The built−in DC/DC converter is based on a high efficient charge

pump structure with operating mode 1x and 1.5x. It provides a peak
87% efficiency together with a 0.2% LED to LED matching.

•

Support the Single Wire Serial Link Protocol

•

Peak Efficiency 90% with 1x and 1.5x Mode

•

Programmable Dimming ICON Function

•

Built−in Short Circuit Protection

•

Provides 16 steps Current Control

•

Controlled Start−up Inrush Current

•

Built−in Automatic Open Load Protection

•

Tight 0.2% Matching Tolerance

•

Accurate 1% Output Current Tolerance

•

Smallest Available Package on the Market

•

This is a Pb−Free Device

•

Portable Back Light

•

Digital Cellular Phone Camera Photo Flash

•

LCD and Key Board Simultaneous Drive

C2

C1

220 nF/10 V

C3

C4

GND

D2

LWY87S

D1

LWY87S

R1

10k

MCU

I/O pin

C5

GND

GND

GND

1

LED1

2

LED/ICON

3

4

CNTL

5

NC

6

7

C2P

8

C2N

9

C1P

10

11

C1N

12

U1

NCP5612

V

CC

V

bat

1 

m

F/6.3 V

1 

m

F/6.3 V

V

CC−cpu

220 nF/10 V

1 

m

F/10 V

V

bat

I

REF

V

out

GND

1

NC

C1P

1

V

bat

I

REF

LED2

C2N

3

4

5

10

9

8

7

YD M 

G

G

YD = Specific Device Code
M

= Date Code

G

= Pb−Free Package

(Note: Microdot may be in either location)

2

12

11

6

LED1

CNTL

C2P

V

OUT

(Top View)

Shipping†

NCP5612MUTBG

LLGA12

(Pb−Free)

3000/Tape & Reel

†For information on tape and reel specifications,

including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.

GND C1N